1st printing (october 30, 2014) index2015 international residential code errata (portions of text...

2015 International Residential Code Errata (Portions of text and tables not shown are unaffected by the errata)

1st PRINTING (October 30, 2014)

INDEX

SWIMMING POOLS…….Chapter 42, Appendix G R326


Applicable to the 1st PRINTING ( This Errata Posted: December 15, 2015)

Chapter 3

BUILDING PLANNING

FIGURE R301.2(5) (map unchanged) For SI: 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa., 1 mile = 1.61 km. a. In CS areas, site-specific Case Studies are required to establish ground snow loads. Extreme local variations in

groundsnow loads in these areas preclude mapping at this scale. b. Numbers in parentheses represent the upper elevation limits in feet for the ground snow load values presented below.

Site-specific case studies are required to establish ground snow loads at elevations not covered.

FIGURE R301.2(5) GROUND SNOW LOADS. Pg, FOR THE UNITED STATES (lb/ft2)


1st PRINTING ( THIS ERRATA POSTED: June 10, 2015)

CHAPTER 3 BUILDING PLANNING

R310.2.5 Replacement windows. Replacement windows installed in buildings meeting the scope of this code shall be exempt from the maximum sill height requirements of Sections R310.1 and Sections R310.2.1 and R310.2.2, provided the replacement window meets the following conditions:

1. The replacement window is the manufacturer's largest standard size window that will fit within the existing frame or

existing rough opening. The replacement window is of the same operating style as the existing window or a style that provides for an equal or greater window opening area than the existing window.

2. The replacement window is not part of a change of occupancy.


1st PRINTING ( POSTED: February 26, 2015 )

CHAPTER 3

BUILDING PLANNING R325.5 R322.5 Openness. Mezzanines shall be open and unobstructed to the room in which they are located except for walls not more than 36 inches (914 mm) in height, columns and posts. Exceptions: (unchanged)



CHAPTER 3

BUILDING PLANNING DELETE SECTION 303.7.1 in its entirety: R303.7.1 Light activation. Where lighting outlets are installed in interior stairways, there shall be a wall switch at each floor level to control the lighting outlet where the stairway has six or more risers. The illumination of exterior stairways shall be controlled from inside the dwelling unit. Exception: Lights that are continuously illuminated or automatically controlled.


1st PRINTING (November 19, 2014)

CHAPTER 3

BUILDING PLANNING R322.3.4 Walls below design flood elevation. Walls and partitions are permitted below the elevated floor, provided that such walls and partitions are not part of the structural support of the building or structure and:

1. – 5. …. 6. In Coastal A Zones, walls shall be provided with flood openings that meet the criteria of Section R322.2.2.


1st PRINTING (October 30, 2014) R322.2.1 Elevation requirements. 1. Buildings and structures in flood hazard areas, including flood hazard areas designated as Coastal A Zones, shall have the lowest floors elevated to or above the base flood elevation plus 1 foot (305 mm), or the design flood elevation, whichever is higher.

2. In areas of shallow flooding (AO Zones), buildings and structures shall have the lowest floor (including basement) elevated to a height above the highest adjacent grade of not less than the depth specified in feet (mm) on the FIRM plus 1 foot (305 mm), or not less than 3 feet (915 mm) if a depth number…...

R322.3.4 Walls below design flood elevation. Walls and partitions are permitted below the elevated floor, provided that such walls and partitions are not part of the structural support of the building or structure and:

1. Electrical, mechanical, and plumbing system components are not to be mounted on or penetrate through walls that are designed to break away under flood loads; and

2. Are constructed with insect screening or open lattice; or 3. Are designed to break away or collapse without causing collapse, displacement or other structural damage to the

elevated portion of the building or supporting foundation system. Such walls, framing and connections shall have a resistance of not less than 10 (479 Pa) and not more than 20 pounds per square foot (958 Pa) as determined using allowable stress design; or

4. Where wind loading values of this code exceed 20 pounds per square foot (958 Pa), the construction documents shall include documentation prepared and sealed by a registered design professional that:

4.1. The walls and partitions below the design flood elevation have been designed to collapse from a water load less than that which would occur during the base flood.

4.2. The elevated portion of the building and supporting foundation system have been designed to withstand the effects of wind and flood loads acting simultaneously on structural and non structural building components. Water-loading values used shall be those associated with the design flood. Wind-loading values shall be those required by this code.

5. Walls intended to break away under flood loads as specified in Items 3 or 4 have flood openings that meet the criteria in Section R322.2.2(2).

6. In Coastal A Zones, walls shall be provided with flood openings that meet the criteria of Section R322.2.2. R324.3 Photovoltaic systems. Photovoltaic systems shall be designed and installed in accordance with Sections R324.3.1 through R324.7.2.5 R324.6.1 and NFPA 70. Inverters shall be listed and labeled in accordance with UL 1741. Systems connected to the utility grid shall use inverters listed for utility interaction. Sections R324.7 through R324.7.2.5 are deleted as follows: R324.7 Access and pathways. Roof access, pathways and spacing requirements shall be provided in accordance with Sections R324.7.1 through R324.7.2.5. Exceptions: 1. Detached garages and accessory structures to one and two-family dwellings and townhouses, such as parking shade structures, carports, solar trellises and similar structures. 2. Roof access, pathways and spacing requirements need not be provided where an alternative ventilation method approved by the code official has been provided or where the code official has determined that vertical ventilation techniques will not be employed. R324.7.1 Roof access points. Roof access points shall be located in areas that do not require the placement of ground ladders over openings such as windows or doors, and located at strong points of building construction in locations where the access point does not conflict with overhead obstructions such as tree limbs, wires or signs. R324.7.2 Solar photovoltaic systems. Solar photovoltaic systems shall comply with Sections R324.7.2.1 through R324.7.2.5. R324.7.2.1 Size of solar photovoltaic array. Each photovoltaic array shall be limited to 150 feet by 150 feet (45 720 by 45


720 mm). Multiple arrays shall be separated by a clear access pathway not less than 3 feet (914 mm) in width. R324.7.2.2 Hip roof layouts. Panels and modules installed on dwellings with hip roof layouts shall be located in a manner that provides a clear access pathway not less than 3 feet (914 mm) in width from the eave to the ridge on each roof slope where panels and modules are located. The access pathway shall be located at a structurally strong location on the building capable of supporting the live load of fire fighters accessing the roof. Exception: These requirements shall not apply to roofs with slopes of 2 units vertical in 12 units horizontal (16.6 percent) and less. R324.7.2.3 Single ridge roofs. Panels and modules installed on dwellings with a single ridge shall be located in a manner that provides two, 3-foot-wide (914 mm) access pathways from the eave to the ridge on each roof slope where panels or modules are located. Exception: This requirement shall not apply to roofs with slopes of 2 units vertical in 12 units horizontal (16.6 percent) and less. R324.7.2.4 Roofs with hips and valleys. Panels and modules installed on dwellings with roof hips or valleys shall not be located less than 18 inches (457 mm) from a hip or valley where panels or modules are to be placed on both sides of a hip or valley. Where panels are to be located on one side only of a hip or valley that is of equal length, the 18-inch (457 mm) clearance does not apply. Exception: These requirements shall not apply to roofs with slopes of 2 units vertical in 12 units horizontal (16.6 percent) and less. R324.7.2.5 Allowance for smoke ventilation operations. Panels and modules installed on dwellings shall not be located less than 3 feet (914 mm) below the roof ridge to allow for fire department smoke ventilation operations. Exception: Where an alternative ventilation method approved by the code official has been provided or where the code official has determined that vertical ventilation techniques will not be employed, clearance from the roof ridge is not required.


1st PRINTING (June 17, 2014)


R303.9 Required glazed openings. Required glazed openings shall open directly onto a street or public alley, or a yard or court located on the same lot as the building.

Exceptions:

1. Required glazed openings that face into a roofed porch where the porch abuts a street, yard or court and the

longer side of the porch is not less than 65 percent unobstructed and the ceiling height is not less than 7 feet (2134 mm).

2. Eave projections shall not be considered as obstructing the clear open space of a yard or court. 3. Required glazed openings that face into the area under a deck, balcony, bay or floor cantilever where a clear

vertical space not less than 36 inches (914 mm) in height is provided.

R303.9.1 R303.8.1 Sunroom additions. Required…………..

R303.10 R303.9 Required heating. Where……………

R322.2.1 Elevation requirements.

1. Buildings and structures in flood hazard areas, including flood hazard areas designated as Coastal A Zones, shall have the lowest floors elevated to or above the base flood elevation plus 1 foot (305 mm), or the design flood elevation, whichever is higher.

2. In areas of shallow flooding (AO Zones), buildings and structures shall have the lowest floor (including basement) elevated to a height of not less than above the highest adjacent grade as of not less than the depth……

R322.2.2 Enclosed area below design flood elevation. Enclosed areas, including….shall:

1. Be used….

2. Be provided….

2.1. The total net area of non-engineered openings shall be not less than 1 square inch (645 mm2) for each square foot (0.093 m2) of enclosed area where the enclosed area is measured on the exterior of the enclosure walls, or the openings shall be designed as engineered openings and the construction documents shall include a statement by a registered design professional that the design of the openings will provide for equalization of hydrostatic flood forces on exterior walls by allowing for the automatic entry and exit of floodwaters as specified in Section 2.6.2.2 2.7.2.2 of ASCE 24.

2.2 Openings shall……

2.3. The presence of louvers, blades, screens and faceplates or other covers and devices shall allow the automatic flow of floodwater into and out of the enclosed areas and shall be accounted for in the determination of the net open area.

R322.2.2.1 Installation of openings. The walls of ….

1. There shall be not less than two openings on different sides of each enclosed area; if a building has more than one enclosed area below the design flood elevation, each area shall have openings on exterior walls.

R322.3.2 Elevation requirements. 1. Buildings and structures erected within coastal high hazard areas and Coastal A Zones, shall be elevated so that the bottom of the lowest portion of horizontal……


R322.3.4 Walls below design flood elevation. Walls and partitions….

1. Electrical… 2. Are constructed….

3. Are designed …

4. Where wind loading values of this code exceed 20 pounds per square foot (958 Pa), as determined using allowable stress design, the construction documents……….


1st PRINTING (July 14, 2014)


R325.5 Openness. Mezzanines shall be open and unobstructed to the room in which they are located except for walls not more than 42 36 inches (1067 mm) in height, columns and posts.

Exceptions:

1. Mezzanines or portions thereof are not required to be open to the room in which they are located, provided that the aggregate floor area of the enclosed space is not greater than 10 percent of the mezzanine area.

2. In buildings that are not more than two stories above grade plane and equipped throughout with an automatic sprinkler system in accordance with Section R313, NFPA 13R or NFPA 13D, a mezzanine having two or more means of egress shall not be required to be open to the room in which the mezzanine is located.


Applicable to the 1st PRINTING (This Errata Posted: November 18, 2015)

Chapter 4

FOUNDATIONS FIGURE R403.1(2)

Applicable to the 1st PRINTING ( This Errata Posted: August 6, 2015)

Chapter 4 FOUNDATIONS

Applicable to the 1st PRINTING ( This Errata Posted: July 13, 2015)

Chapter 4 FOUNDATIONS

Figure 403.3.3

FIGURE R403.3(1) INSULATION PLACEMENT FOR FROST-PROTECTED FOOTINGS IN HEATED BUILDINGS

a,b,c,d,e,f

1st through 6th PRINTING (August 4, 2014)

Chapter 4

FOUNDATIONS

Figure R403.1.3:

FIGURE R403.1.3 REINFORCED CONCRETE FOOTINGS AND MASONRY AND CONCRETE

STEM WALLS IN SDC D0, D1 AND D2


1st PRINTING ( POSTED: April 1, 2015 )

CHAPTER 5 FLOORS

TABLE R507.2 DECK LEDGER CONNECTION TO BAND JOIST (Table remains unchanged)

a. Ledgers shall be flashed in accordance with Section R703.8 R703.4 to prevent water from contacting house band joist. (Remainder of table notes remain unchanged)



CHAPTER 5 FLOORS

TABLE R502.3.1(2)

FLOOR JOIST SPANS FOR COMMON LUMBER SPECIES (Residential living areas, live load = 40 psf, L/ = 360)b

JOIST SPACING (inches)

SPECIES AND GRADE

DEAD LOAD = 10 psf DEAD LOAD = 20 psf

2 × 6 2 × 8 2 × 10 2 × 12 2 × 6 2 × 8 2 × 10 2 × 12

Maximum floor joist spans

(ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)

12

Douglas fir-larch SS 11-4 15-0 19-1 23-3 11-4 15-0 19-1 23-3

Douglas fir-larch #1 10-11 14-5 18-5 22-0 10-11 14-2 17-4 20-1



Hem-fir SS 10-9 14-2 18-0 21-11 10-9 14-2 18-0 21-11

Hem-fir #1 10-6 13-10 17-8 21-6 10-6 13-10 17-1 19-10

Hem-fir #2 10-0 13-2 16-10 20-4 10-0 13-1 16-0 18-6

Hem-fir #3 8-8 11-0 13-5 15-7 7-11 10-0 12-3 14-3

Southern pine SS 11-2 14-8 18-9 22-10 11-2 14-8 18-9 22-10

Southern pine #1 10-9 14-2 18-0 21-11 10-9 14-2 16-11 20-1

Southern pine #2 10-3 13-6 16-2 19-1 9-10 12-6 14-9 17-5

Southern pine #3 8-2 10-3 12-6 14-9 7-5 9-5 11-5 13-6

Spruce-pine-fir SS 10-6 13-10 17-8 21-6 10-6 13-10 17-8 21-6

Spruce-pine-fir #1 10-3 13-6 17-3 20-7 10-3 13-3 16-3 18-10

Spruce-pine-fir #2 10-3 13-6 17-3 20-7 10-3 13-3 16-3 18-10

Spruce-pine-fir #3 8-8 11-0 13-5 15-7 7-11 10-0 12-3 14-3

16





Hem-fir SS 9-9 12-10 16-5 19-11 9-9 12-10 16-5 19-11

Hem-fir #1 9-6 12-7 16-0 18-10 9-6 12-2 14-10 17-2

Hem-fir #2 9-1 12-0 15-2 17-7 8-11 11-4 13-10 16-1

Hem-fir #3 7-6 9-6 11-8 13-6 6-10 8-8 10-7 12-4

Southern pine SS 10-2 13-4 17-0 20-9 10-2 13-4 17-0 20-9


Southern pine #1 9-9 12-10 16-1 19-1 9-9 12-7 14-8 17-5

Southern pine #2 9-4 11-10 14-0 16-6 8-6 10-10 12-10 15-1

Southern pine #3 7-1 8-11 10-10 12-10 6-5 8-2 9-10 11-8


Spruce-pine-fir #1 9-4 12-3 15-5 17-10 9-1 11-6 14-1 16-3

Spruce-pine-fir #2 9-4 12-3 15-5 17-10 9-1 11-6 14-1 16-3

Spruce-pine-fir #3 7-6 9-6 11-8 13-6 6-10 8-8 10-7 12-4

(continued)

TABLE R502.3.1(2)—continued FLOOR JOIST SPANS FOR COMMON LUMBER SPECIES (Residential living areas, live load = 40 psf, L/ = 360)b

JOIST SPACING (inches)

SPECIES AND GRADE

DEAD LOAD = 10 psf DEAD LOAD = 20 psf

2 × 6 2 × 8 2 × 10 2 × 12 2 × 6 2 × 8 2 × 10 2 × 12

Maximum floor joist spans

(ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.) (ft. - in.)

19.2





Hem-fir SS 9-2 12-1 15-5 18-9 9-2 12-1 15-5 18-9

Hem-fir #1 9-0 11-10 14-10 17-2 8-9 11-1 13-6 15-8

Hem-fir #2 8-7 11-3 13-10 16-1 8-2 10-4 12-8 14-8

Hem-fir #3 6-10 8-8 10-7 12-4 6-3 7-11 9-8 11-3

Southern pine SS 9-6 12-7 16-0 19-6 9-6 12-7 16-0 19-6

Southern pine #1 9-2 12-1 14-8 17-5 9-0 11-5 13-5 15-11

Southern pine #2 8-6 10-10 12-10 15-1 7-9 9-10 11-8 13-9

Southern pine #3 6-5 8-2 9-10 11-8 5-11 7-5 9-0 10-8


Spruce-pine-fir # 1 8-9 11-6 14-1 16-3 8-3 10-6 12-10 14-10

Spruce-pine-fir #2 8-9 11-6 14-1 16-3 8-3 10-6 12-10 14-10

Spruce-pine-fir #3 6-10 8-8 10-7 12-4 6-3 7-11 9-8 11-3

24



Douglas fir- #2 8-3 10-5 12-9 14-9 7-6 9-6 11-8 13-6


larch


Hem-fir SS 8-6 11-3 14-4 17-5 8-6 11-3 14-4 16-10a

Hem-fir #1 8-4 10-10 13-3 15-5 7-10 9-11 12-1 14-0

Hem-fir #2 7-11 10-2 12-5 14-4 7-4 9-3 11-4 13-1

Hem-fir #3 6-2 7-9 9-6 11-0 5-7 7-1 8-8 10-1

Southern pine SS 8-10 11-8 14-11 18-1 8-10 11-8 14-11 18-0

Southern pine #1 8-6 11-3 13-1 15-7 8-1 10-3 12-0 14-3

Southern pine #2 7-7 9-8 11-5 13-6 7-0 8-10 10-5 12-4

Southern pine #3 5-9 7-3 8-10 10-5 5-3 6-8 8-1 9-6


Spruce-pine-fir #1 8-1 10-3 12-7 14-7 7-5 9-5 11-6 13-4

Spruce-pine-fir #2 8-1 10-3 12-7 14-7 7-5 9-5 11-6 13-4

Spruce-pine-fir #3 6-2 7-9 9-6 11-0 5-7 7-1 8-8 10-1

For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa. Note: Check sources for availability of lumber in lengths greater than 20 feet. a. End bearing length shall be increased to 2 inches. b. Dead load limits for townhouses in Seismic Design Category C and all structures in Seismic Design Categories D0, D1, and D2 shall be determined in

accordance with Section R301.2.2.2.1.


1st PRINTING (August 4, 2014)

Chapter 5 FLOORS

Figure R507.2.3(2):

FIGURE R507.2.3(2) DECK ATTACHMENT FOR LATERAL LOADS



CHAPTER 5 FLOORS

R502.2.2 Blocking and subflooring. Blocking for fastening panel edges or fixtures shall be a minimum of utility grade lumber. Subflooring shall be a minimum of utility grade lumber,or No. 4 common grade boards or wood structural panels as specified in Section R503.2. Fireblocking shall be of any grade lumber.


Applicable to the 1st

PRINTING (This Errata Posted: November 18, 2015)

CHAPTER 6

WALL CONSTRUCTION

R608.5.4.2 Location of reinforcement in walls. For location….see Sections R404.1.2.3.7.2 R404.1.3.3.7.2 and R608.6.5, respectively.



PRINTING ( This Errata Posted: August 26, 2015)

Chapter 6

WALL CONSTRUCTION

Table R602.10.3(1) BRACING REQUIREMENTS BASED UPON WIND SPEED



PRINTING ( This Errata Posted: July 13, 2015)

CHAPTER 6

WALL CONSTRUCTION

TABLE R602.10.4

BRACING METHODS No change to table For SI: …. a. Adhesive… b. Applies…. c. Garage openings…….with Table R502.5(1) R602.7(1). A full-height…… d. Method CD-SFB…. e. Method applies….

R602.10.6.5 Wall bracing for dwellings with stone and masonry veneer in Seimic SDesign Categories D0, D1 and

D2. Where stone and ….. Where dwellings in Seismic Design Categories D0, D1 and D2 have stone or masonry veneer installed in accordance with Section R703.7 R703.8 and the veneer does not exceed the first-story height….. Where dwellings in Seismic Design Categories D0, D1 and D2 have stone or masonry veneer installed in accordance with Section R703.7 R703.8 and the veneer exceeds the first-story height, wall bracing at the exterior…….

R603.9.4.1 Ultimate design wind speeds greater than 126 mph. Where Ultimate design wind speeds exceed 126 mph (56 m/s), ……as required for 139 miles per hour (62 m/s), Exposure Category C.


1st

PRINTING ( January 7, 2015)

CHAPTER 6

WALL CONSTRUCTION

Table R602.7 (1). Change note b (on pages 170 and 171) to read:


1st

PRINTING (October 30, 2014)

CHAPTER 6

WALL CONSTRUCTION

For SI: 1 inch = 25.4 mm, 1 foot =304.8 mm

a. Methods of bracing shall be as described in Section R602.10.4.

FIGURE R602.10.8.2(3)

BRACED WALL PANEL CONNECTION OPTION TO PERPENDICULAR RAFTERS OR ROOF TRUSSES

a


1st

PRINTING (August 14, 2014)

Chapter 6

WALL CONSTRUCTION

TABLE R602.10.3(4)

SEISMIC ADJUSTMENT FACTORS TO THE REQUIRED LENGTH OF WALL BRACING

ITEM

NUMBER

ADJUSTMENT

BASED ON: STORY CONDITION

ADJUSTMENT

FACTOR

APPLICABLE

METHODS

7

Walls with stone or masonry veneer,

detached one- and

two-family dwellings

in SDC D0 – D2d f

Any story

See Table R602.10.6.5

BV-WSP

R602.10.4.1 Mixing methods. Mixing of bracing methods shall be permitted as follows: 1. Mixing… 2. Mixing intermittent bracing methods from braced wall line to braced wall line within a story shall be permitted. In regions within Seismic Design Categories A, B and C or where the ultimate design wind speed is less than or equal to 130 mph (58m/s), mixing of intermittent bracing and continuous sheathing methods from braced wall line to braced wall line within a story shall be permitted.


1st

PRINTING (August 4, 2014)

Chapter 6

WALL CONSTRUCTION

R602.10.8.2 Connections to framing. Top plates…. 1. For Seismic… 2. For Seismic Design Categories D0, D1, and D2, where ….

Figure R602.10.8.2(3):

FIGURE R602.10.8.2(3)

BRACED WALL PANEL CONNECTION OPTION TO PERPENDICULAR RAFTERS OR ROOF TRUSSES


1st

PRINTING (July 22, 2014)

CHAPTER 6

WALL CONSTRUCTION

Figure R602.7.2



CHAPTER 7

ROOF-CEILING CONSTRUCTION R703.5 Wood, hardboard and wood structural panel siding. Wood, hardboard and wood structural panel siding shall be installed in accordance with this section and Table R703.3(1). Hardboard siding…… R703.9.1 Exterior insulation and finish system (EIFS). EIFS shall comply with the following:

1. ASTM E2568. 2. EIFS shall 3. Flashing of EIFS shall be provided in accordance with the requirements of Section R703.8 R703.4. 4. EIFS shall …. 5. EIFS shall …. 6. Decorative trim….

R703.9.2 Exterior insulation and finish system (EIFS) with drainage. EIFS with drainage shall comply with the following:

1. ASTM E2568. 2. EIFS with …. 3. EIFS with …. 4. The water-resistive… 5. The water-resistive… 6. Flashing of EIFS with drainage shall be provided in accordance with the requirements of Section R703.8 R703.4. 7. EIFS with …. 8. EIFS with …. 9. Decorative trim….

R703.12.2 Water-resistive barrier. A water-resistive barrier shall installed as required by Section R703.2 and shall comply with the requirements of Section R703.6.3 R703.7.3. The water-resistive….

1st PRINTING ( POSTED: April 1, 2015 )

CHAPTER 7 WALL COVERING

R703.7.1 Lath. Lath and lath attachment attachments…..16 gage staples, spaced not less more than 6 inches…..


CHAPTER 7

WALL COVERING TABLE R702.1(3)

CEMENT PLASTER PROPORTIONS, PARTS BY VOLUME

COAT CEMENT PLASTER

TYPE

CEMENTITIOUS MATERIALS VOLUME OF AGGREGATE PER

SUM OF SEPARATE VOLUMES OF

CEMENTITIOUS MATERIALSb

Portland Cement Type I, II or III or Blended Cement

Type IP, I (PM), IS or I (SM)

Plastic Cement

Masonry Cement Type M, S or N Lime

First

Portland or blended 1 3/4 - 11/2a 21/2 - 4

Masonry 1 1 21/2 - 4

Plastic 1 21/2 - 4

Second

Portland or blended 1 3/4 - 11/2 3 - 5

Masonry 1 3 - 5

Plastic 1 3 - 5

Finish

Portland or blended 1 3/4 - 2 11/2 - 3

Masonry 1 11/2 - 3

Plastic 1 11/2 - 3

For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. a. Lime by volume of 0 to 3/4 shall be used where the plaster will be placed over low-absorption surfaces such as dense clay tile or brick. b. The same or greater sand proportion shall be used in the second coat than used in the first coat.

1st PRINTING (August 4, 2014)

Chapter 7 WALL COVERING

Table R703.3(1) :

TABLE R703.3(1)

SIDING ATTACHMENT AND MINIMUM THICKNESS TYPE OF SUPPORTS FOR THE SIDING MATERIAL AND FASTENERS

Wood or wood

structural

Number

or NOMINAL JOINT panel Fiberboard Gypsum Foam plastic spacing

THICKNESS(i TREAT- sheathing into sheathing into sheathing into sheathing into Direct to of SIDING MATERIAL nches) MENT stud stud stud studl studs fasteners

Hardboard panel siding (See Section R703. 3 5) 7/16

Hardboard lap siding (See Section R703. 3 5) 7/16

Wood siding (See Section R703. 3 5)

Wood rustic, drop 3/8 Min

Shiplap 19/32 Average

Bevel 7/16 Butt tip 3/16

Wood structural panel ANSI/APA PRP-210 siding (exterior grade) (See Section R703.3 5) Wood structural panel lapsiding (See Section R703. 3 5)

3/8 – 1/2 3/8 – 1/2



CHAPTER 8 ROOF-CEILING CONSTRUCTION

R802.1.1 End-jointed lumber. Approved end-jointed lumber identified by a grade mark conforming to Section R802.1 R802.1.1 shall permitted to be used….. R802.1.5.3 Testing. For wood products produced…..required in Section R802.1.3 R802.1.5. Testing….



CHAPTER 9 ROOF ASSEMBLIES

R905.2.8.5 Drip edge. A drip edge shall….under the underlayment drip edge along rake edges.


1st PRINTING ( POSTED: May 27, 2015 )

CHAPTER 10 CHIMNEYS AND FIREPLACES

Figure R1003.18



Chapter 11 ENERGY EFFICIENCY

N1102.1 (R402.1) General (Prescriptive). The building thermal envelope shall be constructed to limit air leakage in accordance with the requirements of Sections N1102.1.1 through N1102.1.4 N1102.1.5.


Applicable to the 1st PRINTING (This Errata Posted: December 16, 2015)


TABLE N1105.5.2(1) [R405.5.2(1)]

SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS BUILDING

COMPONENT STANDARD REFERENCE DESIGN PROPOSED DESIGN

Vertical fenestration other than opaque doors

Total area b h = As proposed

(a) The proposed glazing area, where the proposed glazing area is less than 15 percent of the conditioned floor area

(b) 15 percent of the conditioned floor area, where the proposed glazing area is 15 percent or more of the conditioned floor area

Orientation: equally distributed to four cardinal compass orientations (N, E, S & W).

As proposed

U-factor: as specified in Table R402.1.4 As proposed

SHGC: as specified in Table R402.1.2 except that for climates with no requirement (NR) SHGC = 0.40 shall be used. As proposed

Interior shade fraction: 0.92-(0.21 × SHGC for the standard reference design)

0.92-(0.21 × SHGC as proposed)

External shading: none As proposed

(Notes a-g are unchanged) h. For residences with conditioned basements, R-2 and R-4 residences and townhouses, the following formula shall be used to determine glazing area: AF = As × FA × F where: AF = Total glazing area. As = Standard reference design total glazing area. FA = (Above-grade thermal boundary gross wall area)/(above-grade boundary wall area + 0.5 × below-grade boundary wall area). F = (Above-grade thermal boundary wall area)/(above-grade thermal boundary wall area + common wall area) or 0.56, whichever is greater. and where: Thermal boundary wall is any wall that separates conditioned space from unconditioned space or ambient conditions. Above-grade thermal boundary wall is any thermal boundary wall component not in contact with soil. Below-grade boundary wall is any thermal boundary wall in soil contact. Common wall area is the area of walls shared with an adjoining dwelling unit. L and CFA are in the same units.




N1101.6 (R202) Defined terms. HISTORIC BUILDING. Buildings that are listed in or eligible for listing in the National Register of Historic Places, or designated as historic under an appropriate state or local law.

HISTORIC BUILDING. Any building or structure that is one or more of the following:

1. Listed, or certified as eligible for listing by the State Historic Preservation Officer or the Keeper of the National

Register of Historic Places, in the National Register of Historic Places. 2. Designated as historic under an applicable state or local law. 3. Certified as a contributing resource within a National Register-listed, state-designated or locally designated historic

district.

N1103.3.3 (R403.3.3) Duct testing (Mandatory). Ducts shall be pressure tested…

1. Rough-in test: ……

2. Post construction test: ….. (Indent position of exception is moved to the left to the position shown below)

Exception: A duct air leakage test shall not be required where the ducts and air handlers are located entirely within the building thermal envelope.

A written report of the results of the test shall be signed by the party conducting the test and provided to the code

official. N1103.5 (R403.5) Service hot water systems. Energy conservation measures for service hot water systems shall be in accordance with Sections N1103.5.1 and through N1103.5.4. N1106.7.1 (R406.7.1) Minimum capabilities. Calculation procedures used to comply with this section shall be software tools capable of calculating the ERI as described in Section R406.3, and shall include the following capabilities:

1. Computer generation of the ERI reference design using only the input for the rated design. (Indent position of the following text is moved to the right to the position as shown below)

The calculation procedure shall not allow the user to directly modify the building component characteristics of the ERI reference design.

2. Calculation of whole building……

3. Calculations that account…. 4. Printed code official inspection….

N1109.1.1.1 (R503.1.1.1) Replacement Fenestration. Where…….Table N1102.1.4 N1102.1.2.


Applicable to the 1st PRINTING ( This Errata Posted: August 13, 2015)


N1106.2 (R406.2) Mandatory requirements. Compliance with this section requires that the mandatory provisions identified in Sections N1101.13 through N1104 identified as “mandatory” and Section N1103.5.3 be met. The building thermal envelope shall be greater than or equal to levels of efficiency and Solar Heat Gain Coefficient in Table 402.1.2 1 or 402.1.4 402.1.3 of the 2009 International Energy Conservation Code. Exception: Supply and return ducts not completely inside the building thermal envelope shall be insulated to a minimum of R-6.



CHAPTER 11 ENERGY EFFICIENCY

N1102.3 (R402.3) Fenestration (Prescriptive). In addition to the requirements of Section N1102, fenestration shall comply with Sections N1102.3.1 through N1102.4.5 N1102.3.5.

N1108.1.1.1 (R502.1.1.1) Building envelope. New building envelope assemblies that are part of the addition shall comply with Sections……. Exception: Where nonconditioned space is changed to conditioned space, the building envelope of the addition

shall comply where the UA, as determined in Section N1102.1.4 N1102.1.5, of the existing….. N1109.1.1 (R503.1.1) Building envelope. Building envelope assemblies that are part of the alteration shall comply with Section N1102 or N1102.1.4. Sections N1102.2.1 through N1102.2.12 13, N1102.3.1, N1102.3.2, N1102.4.3 and N1102.4.4 N1102.4.5.


Applicable to the 1st PRINTING (June 17, 2015)


N1102.4 (R402.4) Air leakage (Mandatory). The building thermal envelope shall be constructed to limit air leakage in accordance with the requirements of Sections R N1102.4.1 through R1102.4.4 N1102.4.5.


1st PRINTING ( THIS ERRATA POSTED: May 29th, 2015)


N1106.2 (R406.2) Mandatory requirements. Compliance with this section requires that the mandatory provisions identified in Sections N1101.2 13 through N1104 identified as “mandatory” and Section N1103.5.3 be met. The building thermal envelope shall be greater than or equal to levels of efficiency and Solar Heat Gain Coefficient in Table 402.1.2 or 402.1.4 of the 2009 International Energy Conservation Code. Exception: Supply and return ducts not completely inside the building thermal envelope shall be insulated to a minimum of

R-6.


1st PRINTING (10-30-14)

N1101.13.1 (R401.2.1) Tropical zone. Residential buildings in the tropical zone at elevations below 2,400 feet (731.5 m) above sea level shall be deemed to comply with this chapter where the following conditions are met:

1. Not more than one-half of the occupied space is air conditioned.

2. The occupied space is not heated.

3. Solar, wind or other renewable energy source supplies not less than 80 percent of the energy for service water heating.

4. Glazing in conditioned space has a solar heat gain coefficient of less than or equal to 0.40, or has an overhang with a projection factor equal to or greater than 0.30.

5. Permanently installed lighting is in accordance with Section N1104.

6. The exterior roof surface complies with one of the options in Table C402.2.1.1 of the International Energy Conservation Code, or the roof/ceiling has insulation with an R-value of R-15 or greater. If present, attics above the insulation are vented and attics below the insulation are unvented.

7. Roof surfaces have a minimum slope of 1/4 inch (6.4 mm) per foot of run. The finished roof does not have water accumulation areas.

8. Operable fenestration provides ventilation area equal to not less than 14 percent of the floor area in each room. Alternatively, equivalent ventilation is provided by a ventilation fan.

9. Bedrooms with exterior walls facing two different directions have operable fenestration on exterior walls facing two directions.

10. Interior doors to bedrooms are capable of being secured in the open position.

11. A ceiling fan or ceiling fan rough-in is provided for bedrooms and the largest space that is not used as a bedroom.

N1103.5.3 (R403.5.3) Hot water pipe insulation (prescriptive). … 1. – 5. …. 6. Buried in piping. (Remainder of items unchanged) N1103.10 (R403.10) Pools and permanent spa energy consumption (Mandatory). The energy consumption of pools and permanent spas shall be in accordance with Sections N1103.10.1 through N1103.10.3.

N1103.10.1 (R403.10.1) Residential pools and permanent residential spas. Swimming pools and permanent spas that are accessory to detached one- and two-family dwellings and townhouses three stories or less in height above grade plane and that are available only to the household and its guests shall be in accordance with APSP-145.

N1103.10.1 (R403.10.1) Heaters. The electric power to heaters shall be controlled by a readily accessible on-off switch that is an integral part of the heater mounted on the exterior of the heater, or external to and within 3 feet (914 mm) of the heater. Operation of such switch shall not change the setting of the heater thermostat. Such switches shall be in addition to a circuit breaker for the power to the heater. Gas-fired heaters shall not be equipped with continuously burning ignition pilots.

N1103.10.2 (R403.10.2) Time switches. Time switches or other control methods that can automatically turn off and on according to a preset schedule shall be installed for heaters and pump motors. Heaters and pump motors that have built-in time switches shall be in compliance with this section.

Exceptions: 1. Where public health standards require 24-hour pump operation. 2. Pumps that operate solar- and waste-heat-recovery pool heating systems.

N1103.10.3 (R403.10.3) Covers. Outdoor heated pools and outdoor permanent spas shall be provided with a vapor-retardant cover or other approved vapor-retardant means.

Exception: Where more than 70 percent of the energy for heating, computed over an operation season, is from site-recovered energy, such as from a heat pump or solar energy source, covers or other vapor-retardant means shall not be required.


N1103.12 (R403.12) Residential pools and permanent residential spas. Residential swimming pools …….shall be in accordance with APSP-145 APSP-15.


TABLE N1105.5.2(1) [R405.5.2(1)] SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS

BUILDING COMPONENT STANDARD REFERENCE DESIGN PROPOSED DESIGN

Above-grade walls

Type: mass wall if proposed wall is mass; otherwise wood frame. As proposed

Gross area: same as proposed As proposed

U-factor: as specified in Table N1102.1.4 As proposed

Solar absorptance = 0.75 As proposed

Emittance = 0.90 As proposed

Basement and crawl space walls

Type: same as proposed As proposed


U-factor: from Table N1102.1.4, with insulation layer on interior side of walls As proposed

Above-grade floors

Type: wood frame As proposed



Ceilings

Type: wood frame As proposed



Roofs

Type: composition shingle on wood sheathing As proposed


Solar absorptance = 0.75 As proposed

Emittance = 0.90 As proposed

Attics Type: vented with aperture = 1 ft2 per 300 ft2 ceiling area As proposed

Foundations Type: same as proposed As proposed

Foundation wall area above and below grade and soil characteristics: same as proposed As proposed

Opaque doors

Area: 40 ft2 As proposed Orientation: North As proposed U-factor: same as fenestration from Table N1102.1.4 As proposed

Vertical fenestration other than opaque doors

Total areab = As proposed

(a) The proposed glazing area, where the proposed glazing area is less than 15 percent of the conditioned floor area

(b) 15 percent of the conditioned floor area, where the proposed glazing area is 15 percent or more of the conditioned floor area

Orientation: equally distributed to four cardinal compass orientations (N, E, S & W). As proposed


SHGC: as specified in Table N1102.1.2 except that for climates with no requirement (NR) SHGC = 0.40 shall be used. As proposed

Interior shade fraction: 0.92-(0.21 × SHGC for the standard reference design)

0.92-(0.21 × SHGC as proposed)

External shading: none As proposed

Skylights None As proposed


Thermally isolated sunrooms None As proposed

Air exchange rate

Air leakage rate of 5 air changes per hour in Climate Zones 1 and 2, and 3 air changes per hour in Climate Zones 3 through 8 at a pressure of 0.2 inches w.g (50 Pa). The mechanical ventilation rate shall be in addition to the air leakage rate and the same as in the proposed design, but no greater than 0.01 × CFA + 7.5 × (Nbr + 1) where: CFA = conditioned floor area Nbr = number of bedrooms Energy recovery shall not be assumed for mechanical ventilation.

For residences that are not tested, the same air leakage rate as the standard reference design.

For tested residences, the measured air exchange ratea. The mechanical ventilation rateb shall be in addition to the air leakage rate and shall be as proposed.

BUILDING COMPONENT STANDARD REFERENCE DESIGN PROPOSED DESIGN

Mechanical ventilation

None, except where mechanical ventilation is specified by the proposed design, in which case: Annual vent fan energy use:

kWh/yr = 0.03942 × CFA + 29.565 × (Nbr +1) where: CFA = conditioned floor area Nbr = number of bedrooms

As proposed

Internal gains IGain = 17,900 + 23.8 × CFA + 4104 × Nbr (Btu/day per dwelling unit) Same as standard reference design.

Internal mass An internal mass for furniture and contents of 8 pounds per square foot of floor area.

Same as standard reference design, plus any additional mass specifically designed as a thermal storage elementc but not integral to the building envelope or structure.

Structural mass

For masonry floor slabs, 80 percent of floor area covered by R-2 carpet and pad, and 20 percent of floor directly exposed to room air. As proposed

For masonry basement walls, as proposed, but with insulation required by Table R402.1.4 located on the interior side of the walls As proposed

For other walls, for ceilings, floors, and interior walls, wood frame construction As proposed

Heating systemsd, e

As proposed for other than electric heating without a heat pump, where the proposed design utilizes electric heating without a heat pump the standard reference design shall be an air source heat pump meeting the requirements of Section C403 of the IECC-Commercial Provisions.

Capacity: sized in accordance with Section N1103.7

As proposed

Cooling systemsd, f As proposed Capacity: sized in accordance with Section N1103.7. As proposed

Service water heatingd, e, f As proposed Use: same as proposed design

As proposed gal/day = 30 + (10 × Nbr)

Thermal distribution systems

Duct insulation: From Section N1103.2.1 A thermal distribution system efficiency (DSE) of 0.88 shall be applied to both the heating and cooling system efficiencies for all systems other than tested duct systems. For tested duct systems, the leakage rate shall be 4 cfm (113.3 L/min) per 100 ft2 (9.29 m2) of conditioned floor area at a pressure of differential of 0.1 inches w.g.

As tested or as specified in Table R405.5.2(2) if not tested. Duct insulation shall be as proposed.


(25 Pa).

Thermostat Type: Manual, cooling temperature setpoint = 75°F; Heating temperature setpoint = 72°F Same as standard reference

For SI: 1 square foot = 0.93 m2, 1 British thermal unit = 1055 J, 1 pound per square foot = 4.88 kg/m2, 1 gallon (US) = 3.785 L, °C = (°F-32)/1.8, 1 degree = 0.79 rad. a. Where required by the code official, testing shall be conducted by an approved party. Hourly calculations as specified in the ASHRAE

Handbook of Fundamentals, or the equivalent shall be used to determine the energy loads resulting from infiltration. � b. The combined air exchange rate for infiltration and mechanical ventilation shall be determined in accordance with Equation 43 of 2001

ASHRAE Handbook of Fundamentals, page 26.24 and the “Whole-house Ventilation” provisions of 2001 ASHRAE Handbook of Fundamentals, page 26.19 for intermittent mechanical ventilation.

c. Thermal storage element shall mean a component not part of the floors, walls or ceilings that is part of a passive solar system, and that provides thermal storage such as enclosed water columns, rock beds, or phase-change containers. A thermal storage element must be in the same room as fenestration that faces within 15 degrees (0.26 rad) of true south, or must be connected to such a room with pipes or ducts that allow the element to be actively charged.

d. For a proposed design with multiple heating, cooling or water heating systems using different fuel types, the applicable standard reference design system capacities and fuel types shall be weighted in accordance with their respective loads as calculated by accepted engineering practice for each equipment and fuel type present.

e. For a proposed design without a proposed heating system, a heating system with the prevailing federal minimum efficiency shall be assumed for both the standard reference design and proposed design.

f. For a proposed design home without a proposed cooling system, an electric air conditioner with the prevailing federal minimum efficiency shall be assumed for both the standard reference design and the proposed design.

g. For a proposed design with a nonstorage-type water heater, a 40-gallon storage-type water heater with the prevailing federal minimum energy factor for the same fuel as the predominant heating fuel type shall be assumed. For the case of a proposed design without a proposed water heater, a 40-gallon storage-type water heater with the prevailing federal minimum efficiency for the same fuel as the predominant heating fuel type shall be assumed for both the proposed design and standard reference design.



N403.10.3 N1103.10.3 (R403.10.3) Time switches. Time switches or other control methods that can automatically turn off and on according to a preset schedule shall be installed for heaters and pump motors. Heaters and pump motors that have built-in time switches shall be in compliance with this section.

Exceptions:

1. Where public health standards require 24-hour pump operation. 2. Pumps that operate solar- and waste-heat-recovery pool heating systems.


1st PRINTING (April 1, 2015)

CHAPTER 15 EXHAUST SYSTEMS

M1501.1 Outdoor discharge. The air removed….with Section M1506.1 3


1st PRINTING ( February 26, 2015 )

CHAPTER 15 EXHAUST SYSTEMS

M1502.4.5.2 Manufacturer’s instructions. The size…..M1502.4.1 5.1 shall be used.


Applicable to the 1st and 2nd PRINTING ( This Errata Posted: December 22, 2015) Chapter 16

DUCT SYSTEMS

TABLE M1601.1.1 DUCT CONSTRUCTION MINIMUM SHEET METAL THICKNESS FOR SINGLE DWELLING UNITSa

ROUND DUCT DIAMETER

(inches)

STATIC PRESSURE ½ water gage 1 inch water gage

Thickness (inches) Thickness (inches) Galvanized Aluminum Galvanized Aluminum

<12 0.013 0.018 0.013 0.018

Applicable to the 1st and 2nd PRINTING ( This Errata Posted: June 17, 2014 )

CHAPTER 16 DUCT SYSTEMS

M1602.2 Return air openings. Return air….

1. Openings shall… 2. The amount… 3. Return and … 4. Return air…

Exceptions: 1.… 2…. 3. Taking return air from an 4. Return air from one dwelling

5. Taking return air… 6. Return air from….


Applicable to the 1st PRINTING ( This Errata Posted: September 21, 2015)

Chapter 24 FUEL GAS

Table G2428.3(1) [504.3(1)]

Number of Appliances Two or more Appliances Type Category I

Appliances Vent Connection Single-wall metal connector Type B double wall connector

Table G2428.3(2) [504.3(2)]

Number of Appliances Two or more Appliances Type Category I

Appliances Vent Connection Type B double wall connector Single-wall metal connector



CHAPTER 27 PLUMBING FIXTURES

P2705.1 General. The installation of fixtures shall conform to the following:

1. Floor-outlet … 2. Wall-hung…. 3. Where… 4. Plumbing…. 5. Water closets,…. 6. The location of …. 7. In flood hazard areas as established by Table R301.2(1), plumbing fixtures shall be located or installed in accordance

with Section R322.1.7 R322.1.6 .


1st PRINTING (July 14, 2014 )

CHAPTER 27 PLUMBING FIXTURES

P2706.2 3 Prohibited waste receptors. Plumbing fixtures…


1st PRINTING (February 5, 2015)

CHAPTER 28 WATER HEATERS

P2801.6.1 Pan size and drain. The pan shall………those materials indicated in Table P2905.5 P2906.5



CHAPTER 28 WATER HEATERS

P2802. 1 Water temperature control. Where heated water…..shall comply with Section P2802.3 P2803.2. A temperature…..


1st PRINTING ( POSTED: May 29, 2015)

CHAPTER 29

WATER SUPPLY AND DISTRIBUTION

FIGURE P2904.2.4.2 MINIMUM ALLOWABLE DISTANCE BETWEEN SPRINKLER AND OBSTRUCTION


1st PRINTING ( POSTED: January 29, 2015 )

CHAPTER 29 WATER SUPPLY AND DISTRIBUTION

P2906.9.1 Solvent cementing. Solvent-cemented joints….through P2906.9.1.3 4



Chapter 30

SANITARY DRAINAGE

P3005.2.5 Cleanout size. Cleanouts shall be the same size as the piping served by the cleanout except cleanouts for piping larger than 4 inches (102 mm) need not be larger than 4 inches (102 mm).

Exceptions:

1. A removable P-trap with slip or ground joint connections can serve as a cleanout for drain piping that is one size larger than the P-trap size.

1. 2. Cleanouts located on stacks can be one size smaller than the stack size. 2. 3. The size of cleanouts for cast-iron piping can be in accordance with the referenced standards for cast

iron fittings as indicated in Table P3002.3.



CHAPTER 34 GENERAL REQUIREMENTS

E3402.2 Penetrations of fire resistance-rated assemblies. Electrical …specified in Section R317.3 R302.4 (300.21)



CHAPTER 36 SERVICES

E3603.1.1 Ungrounded service conductors. For a service rated at 100 through 400 amperes, the service conductors supplying the entire load associated with a one-family dwelling, or the service conductors supplying the entire load associated with an individual dwelling unit in a two-family dwelling, shall have an ampacity of not less than 83 percent of the service rating. E3603.1.2 Ungrounded feeder conductors. For a feeder rated at 100 through 400 amperes, the feeder conductors supplying the entire load associated with a one-family dwelling, or the feeder conductors supplying the entire load associated with an individual dwelling unit in a two-family dwelling, shall have an ampacity of not less than 83 percent of the feeder rating. E3603.1.3 Feeder size relative to service size. A feeder for an individual dwelling unit shall not be required to have an ampacity greater than that specified in Sections E3603.1.1 and E3603.1.2. E3603.1.4 Grounded conductors. The grounded conductor ampacity shall be not less than the maximum unbalance of the load and the size of the grounded conductor shall be not smaller than the required minimum grounding electrode conductor size specified in Table E3603.4. [310.15(B)(7)]



CHAPTER 39 POWERING AND LIGHTING DISTRIBUTION

E3902.16 Arc-fault circuit-interrupter protection. Branch circuits that supply 120-volt, single-phase, 15- and 20- ampere outlets installed in kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreations rooms, closets, hallways, laundry areas and similar rooms or areas shall be protected by any of the following: [210.12(A)]

1. A listed combination-type arc-fault circuit interrupter, installed to provide protection of the entire branch circuit. [210.12(A)(1)]

2. A listed branch/feeder-type AFCI installed at the origin of the branch-circuit in combination with a listed outlet branch-circuit type arc-fault circuit interrupter installed at the first outlet box on the branch circuit. The first outlet box in the branch circuit shall be marked to indicate that it is the first outlet of the circuit. [210.12(A)(2)]

3. A listed supplemental arc protection circuit breaker installed at the origin of the branch circuit in combination with a listed outlet branch-circuit type arc-fault circuit interrupter installed at the first outlet box on the branch circuit where all of the following conditions are met: 3.1. The branch-circuit wiring shall be continuous from the branch-circuit overcurrent device to the outlet

branch-circuit arc-fault circuit interrupter. 3.2. The maximum length of the branch-circuit wiring from the branch-circuit overcurrent device to the first

outlet shall not exceed 50 feet (15.2 m) for 14 AWG conductors and 70 feet (21.3 m) for 12 AWG conductors.

3.3. The first outlet box on the branch circuit shall be marked to indicate that it is the first outlet on the circuit. [210.12(A)(3)]

4. A listed outlet branch-circuit type arc-fault circuit interrupter installed at the first outlet on the branch circuit in combination with a listed branch-circuit overcurrent protective device where all of the following conditions are met: 4.1. The branch-circuit wiring shall be continuous from the branch-circuit overcurrent device to the outlet

branch-circuit arc-fault circuit interrupter. 4.2. The maximum length of the branch-circuit wiring from the branch-circuit overcurrent device to the first

outlet shall not exceed 50 feet (15.2 m) for 14 AWG conductors and 70 feet (21.3 m) for 12 AWG conductors.

4.3. The first outlet box on the branch circuit shall be marked to indicate that it is the first outlet on the circuit. 4.4. The combination of the branch-circuit overcurrent device and outlet branch-circuit AFCI shall be identified

as meeting the requirements for a system combination-type AFCI and shall be listed as such. [210.12(A)(4)]

5. Where metal outlet boxes and junction boxes and RMC, IMC, EMT, Type MC or steel-armored Type AC cables meeting the requirements of Section E3908.8, metal wireways or metal auxiliary gutters are installed for the portion of the branch circuit between the branch-circuit overcurrent device and the first outlet, a listed outlet branch-circuit type AFCI installed at the first outlet shall be considered as providing protection for the remaining portion of the branch circuit. [210.12(A)(5)]

6. Where a listed metal or nonmetallic conduit or tubing or Type MC cable is encased in not less than 2 inches (50.8 mm) of concrete for the portion of the branch circuit between the branch-circuit overcurrent device and the first outlet, a listed outlet branch-circuit type AFCI installed at the first outlet shall be considered as providing protection for the remaining portion of the branch circuit. [210.12(A)(6)]

Note: the yellow paragraph below was just moved to the left so as not to appear as an exception to item # 6. Should not be indented under item # 6.

Exception: AFCI protection is not required for an individual branch circuit supplying only a fire alarm system where the branch circuit is wired with metal outlet and junction boxes and RMC, IMC, EMT or steel-sheathed armored cable Type AC or Type MC meeting the requirements of Section E3908.8.

E3906.11 Exposed combustible finish. Combustible wall or ceiling finish exposed between the edge of a fixture canopy or pan and the outlet box shall be covered with noncombustible material where required by Section E4004.2. [314.25(B)]



CHAPTER 41 APPLIANCE INSTALLATION

E4101.6 Support of ceiling-suspended paddle fans. Ceiling….Section E3905.9 8 (422.18)


1st PRINTING ( POSTED: February 26, 2015 and a correction POSTED: November 25, 2015)

CHAPTER 42

SWIMMING POOLS E4204.2 Bonded parts. The parts of pools… Exceptions: 1. Equipotential…. 1.1 through 1.3 unchanged 1.4 To The top rim …..



CHAPTER 42

SWIMMING POOLS

E4203.6 Overhead conductor clearances. Except where installed with the clearances specified in Table E4203.6, the following parts of pools and outdoor spas and hot tubs shall not be placed under existing service-drop conductors, overhead service conductor, or any other open overhead wiring; nor shall such wiring be installed above the following:

1. Pools and the areas extending not less than 10 feet, (3048 mm) horizontally from the inside of the walls of the pool;.

2. Diving structures and the areas extending not less than 10 feet (3048 mm) horizontally from the outer edge of such structures.

3. Observation stands, towers, and platforms and the areas extending not less than 10 feet (3048 mm) horizontally from the outer edge of such structures.

Overhead conductors of network-powered broadband communications systems shall comply with the provisions in Table E4203.6 for conductors operating at 0 to 750 volts to ground. Utility-owned, -operated and -maintained communications conductors, community antenna system coaxial cables and the supporting messengers shall be permitted at a height of not less than 10 feet (3048 mm) above swimming and wading pools, diving structures, and observation stands, towers, and platforms. [680.8(A), (B), and (C)]

TABLE E4203.6 [Table 680.8(A)] OVERHEAD CONDUCTOR CLEARANCES

INSULATED SUPPLY OR SERVICE DROP CABLES,

0-750 VOLTS TO GROUND, SUPPORTED ON AND CABLED

TOGETHER WITH AN EFFECTIVELY GROUNDED

BARE MESSENGER OR EFFECTIVELY GROUNDED

NEUTRAL CONDUCTOR (feet)

ALL OTHER SUPPLY OR SERVICE DROP

CONDUCTORS (feet) Voltage to ground

0-15 kV Greater than 15 to 50 kV

A. Clearance in any direction to the water level, edge of water surface, base of diving platform, or permanently

anchored raft 22.5 25 27

B. Clearance in any direction to the diving platform 14.5 17 18

For SI: 1 foot = 304.8 mm. E4204.2 Bonded parts. The parts of pools, spas, and hot tubs specified in Items 1 through 7 shall be bonded together using insulated, covered or bare solid copper conductors not smaller than 8 AWG or using rigid metal conduit of brass or other identified corrosion-resistant metal. An 8 AWG or larger solid copper bonding conductor provided to reduce voltage gradients in the pool, spa, or hot tub area shall not be required to be extended or attached to remote panelboards, service equipment, or electrodes. Connections shall be made by exothermic welding, by listed pressure connectors or clamps that are labeled as being suitable for the purpose and that are made of stainless steel, brass, copper or copper alloy, machine screw- type fasteners that engage not less than two threads or are secured with a nut, thread-forming machine screws that engage not less than two-threads, or terminal bars. Connection devices or fittings that depend solely on solder shall not be used. Sheet metal screws shall not be used to connect bonding conductors or connection devices: [680.26(B)]

1. Conductive pool shells. Bonding to conductive pool shells shall be provided as specified in Item 1.1 or 1.2. Poured concrete, pneumatically applied or sprayed concrete, and concrete block with painted or plastered coatings shall be considered to be conductive materials because of their water permeability and porosity. Vinyl liners and fiberglass composite shells shall be considered to be nonconductive materials.


1.1. Structural reinforcing steel. Unencapsulated structural reinforcing steel shall be bonded together by steel tie wires or the equivalent. Where structural reinforcing steel is encapsulated in a nonconductive compound, a copper conductor grid shall be installed in accordance with Item 1.2.

1.2. Copper conductor grid. A copper conductor grid shall be provided and shall comply with Items 1.2.1 through 1.2.4: 1.2.1. It shall be constructed of minimum 8 AWG bare solid copper conductors bonded to each other at

all points of crossing. 1.2.2. It shall conform to the contour of the pool . 1.2.3. It shall be arranged in a 12-inch (305 mm) by 12-inch (305 mm) network of conductors in a

uniformly spaced perpendicular grid pattern with a tolerance of 4 inches (102 mm). 1.2.4. It shall be secured within or under the pool not more than 6 inches (152 mm) from the outer

contour of the pool shell. [680.26(B)(1)] 2. Perimeter surfaces. The perimeter surface shall extend for 3 feet (914 mm) horizontally beyond the inside walls of

the pool and shall include unpaved surfaces, poured concrete surfaces and other types of paving. Perimeter surfaces that extend less than 3 feet (914 mm) beyond the inside wall of the pool and that are separated from the pool by a permanent wall or building 5 feet (1524 mm) or more in height shall require equipotential bonding on the pool side of the permanent wall or building. Bonding to perimeter surfaces shall be provided as specified in Item 2.1 or 2.2 and shall be attached to the pool, spa, or hot tub reinforcing steel or copper conductor grid at a minimum of four points uniformly spaced around the perimeter of the pool, spa, or hot tub. For nonconductive pool shells, bonding at four points shall not be required.

Exceptions:

1. Equipotential bonding of perimeter surfaces shall not be required for spas and hot tubs where all of the

following conditions apply: 1.1. The spa or hot tub is listed as a self- contained spa for aboveground use. 1.2. The spa or hot tub is not identified as suitable only for indoor use. 1.3. The installation is in accordance with the manufacturer’s instructions and is located on or above

grade. 1.4. The To top rim of the spa or hot tub is not less than 28 in. (711 mm) above all perimeter surfaces

that are within 30 in. (762 mm), measured horizontally from the spa or hot tub. The height of nonconductive external steps for entry to or exit from the self-contained spa is not used to reduce or increase this rim height measurement.

2. The equipotential bonding requirements for perimeter surfaces shall not apply to a listed self- contained spa or hot tub located indoors and installed above a finished floor. 2.1. Structural reinforcing steel. Structural reinforcing steel shall be bonded in accordance with Item

1.1. 2.2. Alternate means. Where structural reinforcing steel is not available or is encapsulated in a

nonconductive compound, a copper conductor(s) shall be used in accordance with Items 2.2.1 through 2.2.5: 2.2.1. At least one minimum 8 AWG bare solid copper conductor shall be provided. 2.2.2. The conductors shall follow the contour of the perimeter surface. 2.2.3. Splices shall be listed. 2.2.4. The required conductor shall be 18 to 24 inches (457 to 610 mm) from the inside walls of

the pool. 2.2.5. The required conductor shall be secured within or under the perimeter surface 4 to 6

inches (102 mm to 152 mm) below the sub- grade. [680.26(B)(2)] 3. Metallic components. All metallic parts of the pool structure, including reinforcing metal not addressed in Item 1.1,

shall be bonded. Where reinforcing steel is encapsulated with a nonconductive compound, the reinforcing steel shall not be required to be bonded. [680.26(B)(3)]

4. Underwater lighting. All metal forming shells and mounting brackets of no-niche luminaires shall be bonded. [680.26(B)(4)]

Exception: Listed low-voltage lighting systems with nonmetallic forming shells shall not require bonding. [680.26(B)(4) Exception]

5. Metal fittings. All metal fittings within or attached to the pool structure shall be bonded. Isolated parts that are not over 4 inches (102 mm) in any dimension and do not penetrate into the pool structure more than 1 inch (25.4 mm) shall not require bonding. [680.26(B)(5)]


6. Electrical equipment. Metal parts of electrical equipment associated with the pool water circulating system, including pump motors and metal parts of equipment associated with pool covers, including electric motors, shall be bonded. [680.26(B)(6)]

Exception: Metal parts of listed equipment incorpo- rating an approved system of double insulation shall not be bonded. [680.26(B)(6) Exception] 6.1. Double-insulated water pump motors. Where a double-insulated water pump motor is installed under the

provisions of this item, a solid 8 AWG copper conductor of sufficient length to make a bonding connection to a replacement motor shall be extended from the bonding grid to an accessible point in the vicinity of the pool pump motor. Where there is no connection between the swimming pool bonding grid and the equipment grounding system for the premises, this bonding conductor shall be connected to the equipment grounding conductor of the motor circuit. [680.26(B)(6)(a)]

6.2. Pool water heaters. For pool water heaters rated at more than 50 amperes and having specific instructions regarding bonding and grounding, only those parts designated to be bonded shall be bonded and only those parts designated to be grounded shall be grounded. [680.26(B)(6)(b)]

7. All fixed metal parts including, but not limited to, metal-sheathed cables and raceways, metal piping, metal awnings, metal fences and metal door and window frames. [680.26(B)(7)]

Exceptions:

1. Those separated from the pool by a permanent barrier that prevents contact by a person shall not be

required to be bonded. [680.26(B)(7) Exception No. 1] 2. Those greater than 5 feet (1524 mm) horizontally from the inside walls of the pool shall not be required to

be bonded. [680.26(B)(7) Exception No. 2] 3. Those greater than 12 feet (3658 mm) measured vertically above the maximum water level of the pool,

or as measured vertically above any observation stands, towers, or platforms, or any diving structures, shall not be required to be bonded. [680.26(B)(7) Excep- tion No. 3]


1st PRINTING ( POSTED: February 26, 2015…UPDATED October 23, 2015)

CHAPTER 44 REFERENCE STANDARDS

ANSI

Z21.88/CSA 2.33 – 15 4 Vented Gas Fireplace Heaters……

SMACNA

SMACNA-15 HVAC Duct Construction Standards---Metal and Flexible 4th Edition….. M1601.4.1

SMACNA/ANSI-2005 HVAC Duct Construction Standards, Metal and Flexible (2005)….. M1601.4.1



CHAPTER 44 REFERENCED STANDARDS

ASCE/SEI

24 – 13 14 Flood-resistant Design and Construction……..



Chapter 44 REFERENCE STANDARDS

AWC

ANSI/AWC NDS—2015 National Design Specification (NDS) for Wood Construction with 2012 2015 NDS Supplement…………. ANSI/AWC PWF—2015 Permanent Wood Foundation Design Specification……….


Applicable to the 1st PRINTING ( This Errata Posted: October 8, 2015)

APPENDIX F

RADON CONTROL METHODS The following errata replaces all Sections contained Appendix F. The Tables and Figures in Appendix F are unaffected. Appendix F for the 2015 IRC is the same as Appendix F for the 2012 IRC except that minor staff edits, as highlighted in green, are included in the 2015 version.

SECTION AF101 SCOPE

AF101.1 General. This appendix contains requirements for new construction in jurisdictions where radon-resistant construction is required.

Inclusion of this appendix by jurisdictions shall be determined through the use of locally available data or determination of Zone 1 designation in Figure AF101 and Table AF101(1).

SECTION AF102 DEFINITIONS

AF102.1 General. For the purpose of these requirements, the terms used shall be defined as follows:

DRAIN TILE LOOP. A continuous length of drain tile or perforated pipe extending around all or part of the internal or external perimeter of a basement or crawl space footing.

RADON GAS. A naturally occurring, chemically inert, radioactive gas that is not detectable by human senses. As a gas, it can move readily through particles of soil and rock, and can accumulate under the slabs and foundations of homes where it can easily enter into the living space through construction cracks and openings.

SOIL-GAS-RETARDER. A continuous membrane of 6-mil (0.15 mm) polyethylene or other equivalent material used to retard the flow of soil gases into a building.

SUBMEMBRANE DEPRESSURIZATION SYSTEM. A system designed to achieve lower submembrane air pressure relative to crawl space air pressure by use of a vent drawing air from beneath the soil-gas-retarder membrane

SUBSLAB DEPRESSURIZATION SYSTEM (Active). A system designed to achieve lower subslab air pressure relative to indoor air pressure by use of a fan-powered vent drawing air from beneath the slab.

SUBSLAB DEPRESSURIZATION SYSTEM (Passive). A system designed to achieve lower subslab air pressure relative to indoor air pressure by use of a vent pipe routed through the conditioned space of a building and connecting the subslab area with outdoor air, thereby relying on the convective flow of air upward in the vent to draw air from beneath the slab.

SECTION AF103 REQUIREMENTS

AF103.1 General. The following construction techniques are intended to resist radon entry and prepare the building for post-construction radon mitigation, if necessary (see Figure AF102). These techniques are required in areas where designated by the jurisdiction.

AF103.2 Subfloor preparation. A layer of gas-permeable material shall be placed under all concrete slabs and other floor systems that directly contact the ground and are within the walls of the living spaces of the building, to facilitate future installation of a subslab depressurization system, if needed. The gas-permeable layer shall consist of one of the following:


1. A uniform layer of clean aggregate, a minimum of 4 inches (102 mm) thick. The aggregate shall consist of material that will pass

through a 2-inch (51 mm) sieve and be retained by a 1/4-inch (6.4 mm) sieve. 2. A uniform layer of sand (native or fill), a minimum of 4 inches (102 mm) thick, overlain by a layer or strips of geotextile

drainage matting designed to allow the lateral flow of soil gases. 3. Other materials, systems or floor designs with demonstrated capability to permit depressurization across the entire subfloor area.

AF103.3 Soil-gas-retarder. A minimum 6-mil (0.15 mm) [or 3-mil (0.075 mm) cross-laminated] polyethylene or equivalent flexible sheeting material shall be placed on top of the gas-permeable layer prior to casting the slab or placing the floor assembly to serve as a soil-gas-retarder by bridging any cracks that develop in the slab or floor assembly, and to prevent concrete from entering the void spaces in the aggregate base material. The sheeting shall cover the entire floor area with separate sections of sheeting lapped at least 12 inches (305 mm). The sheeting shall fit closely around any pipe, wire or other penetrations of the material. All punctures or tears in the material shall be sealed or covered with additional sheeting.

AF103.4 Entry routes. Potential radon entry routes shall be closed in accordance with Sections AF103.4.1 through AF103.4.10.

AF103.4.1 Floor openings. Openings around bathtubs, showers, water closets, pipes, wires or other objects that penetrate concrete slabs, or other floor assemblies, shall be filled with a polyurethane caulk or equivalent sealant applied in accordance with the manufacturer’s recommendations.

AF103.4.2 Concrete joints. All control joints, isolation joints, construction joints, and any other joints in concrete slabs or between slabs and foundation walls shall be sealed with a caulk or sealant. Gaps and joints shall be cleared of loose material and filled with polyurethane caulk or other elastomeric sealant applied in accordance with the manufacturer’s recommendations.

AF103.4.3 Condensate drains. Condensate drains shall be trapped or routed through nonperforated pipe to daylight.

AF103.4.4 Sumps. Sump pits open to soil or serving as the termination point for subslab or exterior drain tile loops shall be covered with a gasketed or otherwise sealed lid. Sumps used as the suction point in a subslab depressurization system shall have a lid designed to accommodate the vent pipe. Sumps used as a floor drain shall have a lid equipped with a trapped inlet.

AF103.4.5 Foundation walls. Hollow block masonry foundation walls shall be constructed with either a continuous course of solid masonry, one course of masonry grouted solid, or a solid concrete beam at or above finished ground surface to prevent the passage of air from the interior of the wall into the living space. Where a brick veneer or other masonry ledge is installed, the course immediately below that ledge shall be sealed. Joints, cracks or other openings around all penetrations of both exterior and interior surfaces of masonry block or wood foundation walls below the ground surface shall be filled with polyurethane caulk or equivalent sealant. Penetrations of concrete walls shall be filled.

AF103.4.6 Dampproofing. The exterior surfaces of portions of concrete and masonry block walls below the ground surface shall be dampproofed in accordance with Section R406.

AF103.4.7 Air-handling units. Air-handling units in crawl spaces shall be sealed to prevent air from being drawn into the unit.

Exception: Units with gasketed seams or units that are otherwise sealed by the manufacturer to prevent leakage. AF103.4.8 Ducts. Ductwork passing through or beneath a slab shall be of seamless material unless the air-handling system is designed to maintain continuous positive pressure within such ducting. Joints in such ductwork shall be sealed to prevent air leakage.

Ductwork located in crawl spaces shall have seams and joints sealed by closure systems in accordance with Section M1601.4.1.

AF103.4.9 Crawl space floors. Openings around all penetrations through floors above crawl spaces shall be caulked or otherwise filled to prevent air leakage.

AF103.4.10 Crawl space access. Access doors and other openings or penetrations between basements and adjoining crawl spaces shall be closed, gasketed or otherwise filled to prevent air leakage.

AF103.5 Passive submembrane depressurization system. In buildings with crawl space foundations, the following components of a passive submembrane depressurization system shall be installed during construction.

Exception: Buildings in which an approved mechanical crawl space ventilation system or other equivalent system is installed.

AF103.5.1 Ventilation. Crawl spaces shall be provided with vents to the exterior of the building. The minimum net area of ventilation openings shall comply with Section R408.1.

AF103.5.2 Soil-gas-retarder. The soil in crawl spaces shall be covered with a continuous layer of minimum 6-mil (0.15 mm) polyethylene soil-gas-retarder. The ground cover shall be lapped not less than 12 inches (305 mm) at joints and shall extend to all foundation walls enclosing the crawl space area.


AF103.5.3 Vent pipe. A plumbing tee or other approved connection shall be inserted horizontally beneath the sheeting and connected to a 3- or 4-inch-diameter (76 or 102 mm) fitting with a vertical vent pipe installed through the sheeting. The vent pipe shall be extended up through the building floors, and terminate not less than 12 inches (305 mm) above the roof in a location not less than 10 feet (3048 mm) away from any window or other opening into the conditioned spaces of the building that is less than 2 feet (610 mm) below the exhaust point, and 10 feet (3048 mm) from any window or other opening in adjoining or adjacent buildings.

AF103.6 Passive subslab depressurization system. In basement or slab-on-grade buildings, the following components of a passive subslab depressurization system shall be installed during construction.

AF103.6.1 Vent pipe. A minimum 3-inch-diameter (76 mm) ABS, PVC or equivalent gas-tight pipe shall be embedded vertically into the subslab aggregate or other permeable material before the slab is cast. A “T” fitting or equivalent method shall be used to ensure that the pipe opening remains within the subslab permeable material. Alternatively, the 3-inch (76 mm) pipe shall be inserted directly into an interior perimeter drain tile loop or through a sealed sump cover where the sump is exposed to the subslab aggregate or connected to it through a drainage system.

The pipe shall be extended up through the building floors, and terminate at least 12 inches (305 mm) above the surface of the roof in a location at least 10 feet (3048 mm) away from any window or other opening into the conditioned spaces of the building that is less than 2 feet (610 mm) below the exhaust point, and 10 feet (3048 mm) from any window or other opening in adjoining or adjacent buildings.

AF103.6.2 Multiple vent pipes. In buildings where interior footings or other barriers separate the subslab aggregate or other gas-permeable material, each area shall be fitted with an individual vent pipe. Vent pipes shall connect to a single vent that terminates above the roof or each individual vent pipe shall terminate separately above the roof.

AF103.7 Vent pipe drainage. Components of the radon vent pipe system shall be installed to provide positive drainage to the ground beneath the slab or soil-gas-retarder.

AF103.8 Vent pipe accessibility. Radon vent pipes shall be accessible for future fan installation through an attic or other area outside the habitable space.

Exception: The radon vent pipe need not be accessible in an attic space where an approved roof-top electrical supply is provided for future use.

AF103.9 Vent pipe identification. Exposed and visible interior radon vent pipes shall be identified with not less than one label on each floor and in accessible attics. The label shall read: “Radon Reduction System.”

AF103.10 Combination foundations. Combination basement/crawl space or slab-on-grade/crawl space foundations shall have separate radon vent pipes installed in each type of foundation area. Each radon vent pipe shall terminate above the roof or shall be connected to a single vent that terminates above the roof.

AF103.11 Building depressurization. Joints in air ducts and plenums in unconditioned spaces shall meet the requirements of Section M1601. Thermal envelope air infiltration requirements shall comply with the energy conservation provisions in Chapter 11. Fireblocking shall meet the requirements contained in Section R302.11.

AF103.12 Power source. To provide for future installation of an active submembrane or subslab depressurization system, an electrical circuit terminated in an approved box shall be installed during construction in the attic or other anticipated location of vent pipe fans. An electrical supply shall also be accessible in anticipated locations of system failure alarms.



APPENDIX R

LIGHT STRAW-CLAY CONSTRUCTION AR 101.1 Scope. This appendix shall govern the use of light straw-clay as a non-bearing building material and wall infill system in Seismic Design Categories A and B.

AR103.2.2 Bracing. Wind and seismic bracing shall be in accordance with Section R602.10 and shall use Method LIB. The required length of bracing shall comply with Section R602.10.3, with the additional requirements that Table 602.10.3(3) shall be applicable to all buildings in Seismic Design Category C, and that the minimum total length of bracing in Table R602.10.3(3) shall be increased by 90%. In lieu of these prescriptive requirements, wind and seismic bracing shall be in accordance with an approved design by a registered design professional. Walls with light straw-clay infill shall not be sheathed with solid sheathing.

AR103.5.2 Plaster finish. Exterior plaster finishes shall be clay plaster or lime plaster. Interior plaster finishes shall be clay plaster, lime plaster or gypsum plaster. Plasters shall be permitted to be applied directly to the surface of the light straw- clay walls without reinforcement, except that the juncture of dissimilar substrates shall be in accordance with Section AR103.5.3 AR103.5.4. Plasters…..



APPENDIX S STRAWBALE CONSTRUCTION

AS103.6 Partial bales. Partial bales made after original fabrication shall be retied with ties complying with Section AR103.3 AS103.3.



APPENDIX S STRAWBALE CONSTRUCTION

AS104.4.8 Cement plaster. Cement plaster shall conform to ASTM C 926 and shall comply with Sections R703.6.2, R703.6.4 and R703.6.5, R703.7.2, R703.7.4 and R703.7.5, except that the amount of lime in plaster coats shall be not less than 1 part lime to 6 parts cement to allow a minimum acceptable vapor permeability. The combined thickness of plaster coats shall be not more than 11/2 inches (38 mm) thick. AS105.6.8 Separation of wood and plaster. Where wood framing or wood sheathing occurs on the exterior face of strawbale walls, such wood surfaces shall be separated from exterior plaster with two layers of Grade D paper, No. 15 asphalt felt or other approved material in accordance with Section R703.6.3 R703.7.3. Exceptions:…. (Portion of section not shown remain unchanged)



APPENDIX T RECOMMENDED PROCEDURE FOR WORST-CASE TESTING

OF ATMOSPHERIC VENTING SYSTEMS UNDER N1102.4 OR N1105 CONDITIONS < 5ACH50

TABLE T301.1(3)

ACCEPTABLE DRAFT TEST CORRECTION

CARBON DIOXIDE MONOXIDE LEVEL

(ppm)

AND OR

SPILLAGE AND ACCEPTABLE DRAFT TEST RESULTS

RETROFIT ACTION

1st printing (october 30, 2014) index2015 international residential code errata (portions of text...

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