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Spray Foam Insulation and theSpray Foam Insulation and theORC & OBCORC & OBC

Central Ohio Code Officials AssociationCentral Ohio Code Officials Association

December 14, 2011December 14, 2011

Brian LieburnBrian Lieburn

Senior Code AdvisorSenior Code Advisor –– Dow ChemicalDow ChemicalCompanyCompany

25 Years Experience in Residential25 Years Experience in Residential 25 Years Experience in Residential25 Years Experience in ResidentialConstruction and RemodelingConstruction and Remodeling

Bachelor of ScienceBachelor of Science –– University ofUniversity ofWisconsinWisconsin –– StoutStout

Today’s SeminarToday’s Seminar

3 credit hour CE Ohio BBS approved3 credit hour CE Ohio BBS approved

Sign in & out on attendance sheetSign in & out on attendance sheet

Signup Sheet for Presentation SlidesSignup Sheet for Presentation Slides Signup Sheet for Presentation SlidesSignup Sheet for Presentation Slides

Feel free to ask questions anytime duringFeel free to ask questions anytime duringthe presentationthe presentation

Objective of SeminarObjective of Seminar

To provide an understanding of theTo provide an understanding of thecommon types and applications of spraycommon types and applications of sprayfoam insulation and the code implicationsfoam insulation and the code implicationsfoam insulation and the code implicationsfoam insulation and the code implicationsof each.of each.

Goals for the SeminarGoals for the Seminar

Understand of the common types of spray foam insulationUnderstand of the common types of spray foam insulation

Understand the features of spray foam insulation and whyUnderstand the features of spray foam insulation and whyits use is growingits use is growing

Understand the different applications for spray foamUnderstand the different applications for spray foaminsulationinsulation

Residential wall, basement, crawl space, floors, ceilingResidential wall, basement, crawl space, floors, ceiling Residential wall, basement, crawl space, floors, ceilingResidential wall, basement, crawl space, floors, ceilingand atticand attic

Commercial wall, ceiling and roofCommercial wall, ceiling and roof

Understand the specific code requirements for spray foamUnderstand the specific code requirements for spray foaminsulationinsulation

Understand the applications where a thermal barrier isUnderstand the applications where a thermal barrier isrequiredrequired

Understand the various fire test methods used in the codeUnderstand the various fire test methods used in the codefor foam plasticfor foam plastic

What is Foam Plastic Insulation?What is Foam Plastic Insulation?

A plastic that is intentionally expanded by theA plastic that is intentionally expanded by theuse of a foaming agent to produce a reduceduse of a foaming agent to produce a reduced--density plastic containing voids consisting ofdensity plastic containing voids consisting ofdensity plastic containing voids consisting ofdensity plastic containing voids consisting ofopen or closed cells distributed throughout theopen or closed cells distributed throughout theplastic for thermal insulating or acousticalplastic for thermal insulating or acousticalpurposes and that has a density less than 20purposes and that has a density less than 20lb/ftlb/ft33 (320 kg/m³).(320 kg/m³).

Plastic TypesPlastic Types

ThermoplasticThermoplastic Heat will meltHeat will melt

Examples:Examples:

Extruded Polystyrene (XPS)Extruded Polystyrene (XPS)

Expanded Polystyrene (EPS)Expanded Polystyrene (EPS) Expanded Polystyrene (EPS)Expanded Polystyrene (EPS)

ThermosettingThermosetting Plastic made by chemical reactionPlastic made by chemical reaction

Will not meltWill not melt

Examples:Examples:

Spray Polyurethane Foam (SPF)Spray Polyurethane Foam (SPF)

Polyisocyanurate (ISO)Polyisocyanurate (ISO)

Burn VideoBurn Video

What is Spray Foam Insulation?What is Spray Foam Insulation?

Most spray foamMost spray foaminsulations are madeinsulations are madeby a chemical reactionby a chemical reactionbetween two liquidbetween two liquidchemicals with achemicals with achemicals with achemicals with ablowing agent thatblowing agent thatproduces the foamproduces the foaminsulation.insulation.

Types of Spray Foam InsulationTypes of Spray Foam Insulation

OPEN CELLOPEN CELL Low Density: 1/2 lb/ftLow Density: 1/2 lb/ft33

Average RAverage R--value of 3.6value of 3.6 --3.8 per inch of thickness3.8 per inch of thickness

CLOSED CELLCLOSED CELL 22--20 lb/ cubic foot. =20 lb/ cubic foot. =

Medium and High DensityMedium and High Density

Average RAverage R--value of 6 pervalue of 6 perinch of thicknessinch of thickness

Semi flexible & friableSemi flexible & friable

Air barrierAir barrier

Higher vapor permeabilityHigher vapor permeability

May require a vaporMay require a vaporretarderretarder

Can absorb waterCan absorb water

inch of thicknessinch of thickness

Cures rigidCures rigid

Air barrierAir barrier

Low vapor permeabilityLow vapor permeability(additional vapor retarder(additional vapor retardershould notshould not be used)be used)

Very low waterVery low waterabsorptionabsorption

Spray Foam Delivery SystemsSpray Foam Delivery Systems

High Pressure SPFHigh Pressure SPF

Spray Rig/Drum FoamSpray Rig/Drum Foam

Low Pressure SPFLow Pressure SPF

<250 psi<250 psi

Two ComponentTwo Component

One ComponentOne Component Used to seal gaps,Used to seal gaps,

cracks and annularcracks and annularspacesspaces

Why is Spray Foam Gaining Popularity?Why is Spray Foam Gaining Popularity?

Energy EfficiencyCombine insulation and air barrier

Eliminate convective currents that reduce R-value

Higher R-value per inch than most fibrous insulations

More effective installation; no gaps or voids

FloorsFloors--Living Space Over GarageLiving Space Over Garage

Air SealingAir Sealing

T or F: Homes are built too tight today?T or F: Homes are built too tight today?

3030--40% of the typical home’s energy is40% of the typical home’s energy islost due to air leaks.lost due to air leaks.lost due to air leaks.lost due to air leaks.

Tighter is betterTighter is better

Warning: You must consider combustionWarning: You must consider combustionsafety and ventilation when tightening thesafety and ventilation when tightening theenclosure.enclosure.

Air LeakageAir Leakage--Big LeaksBig Leaks

Behind Tub/Shower UnitsBehind Tub/Shower Units

Fireplace ChasesFireplace Chases

Rim JoistRim Joist Rim JoistRim Joist

PenetrationsPenetrations

WindowsWindows

DoorsDoors

HVACHVAC

ElectricElectric

PlumbingPlumbing

Air BarriersAir Barriers--Future CodesFuture Codes

2009 IRC & IECC2009 IRC & IECC

Air barrier requiredAir barrier required

Visual inspectionVisual inspection Visual inspectionVisual inspection

No testing requiredNo testing required

Testing option: 7 ACH @ 50Testing option: 7 ACH @ 50 PascalsPascals

2012 IECC2012 IECC

Mandatory testing Commercial & ResidentialMandatory testing Commercial & Residential

5 ACH @ 505 ACH @ 50 PascalsPascals Climate Zones 1Climate Zones 1--33

3 ACH @ 503 ACH @ 50 PascalsPascals all otherall other Climate ZonesClimate Zones

VentilationVentilation

[(# of bedrooms + 1) x 15 CFM][(# of bedrooms + 1) x 15 CFM]

ASHRAE 62.1 & 62.2ASHRAE 62.1 & 62.2

Why seal the leaks?Why seal the leaks? Why seal the leaks?Why seal the leaks?

Energy lossEnergy loss

UncontrolledUncontrolled

More leakage at extreme temperature differentialsMore leakage at extreme temperature differentials

Air moving through the wall carries waterAir moving through the wall carries watervapor and condensation potentialvapor and condensation potential


Building Durability

Minimizes air movement through the enclosureassembly, a significant source of moisture.

Minimizes air movement through the enclosureassembly, a significant source of moisture.

Minimizes condensationMinimizes condensationMinimizes condensationpotential

Minimizes condensationpotential

Some types provideadded structural rigidity

Some types provideadded structural rigidity

Additional protection against bulk waterintrusion

Additional protection against bulk waterintrusion


IEQ - Indoor Environmental Quality

An effective air barrier limits entry of exteriorpollutants such as; dust, pollen, & mold spores

Less drafts and improved insulation performanceprovides more consistent temperature comfort

Reduces airborne sound makes homes quieter

Residential WallsResidential Walls

Residential BasementsResidential Basements

Residential Crawl SpacesResidential Crawl Spaces

CeilingsCeilings

Unvented AtticsUnvented Attics

FloorsFloors--CantileverCantilever

FloorsFloors-- Bay WindowsBay Windows

FireblockingFireblocking

Commercial WallsCommercial Walls

Commercial RoofCommercial Roof

Do you expect to spray more SPF in 2011vs. 2010 ?

More

DateDate DOW RESTRICTED - For internal use onlyDOW RESTRICTED - For internal use only 101

0 10 20 30 40 50 60 70 80 90

Less

Same

Safety ConsiderationsSafety Considerations The safety information provided in thisThe safety information provided in this

presentation does not constitute apresentation does not constitute acomprehensive safety program. Spraycomprehensive safety program. SprayPolyurethane Foam (SPF) should bePolyurethane Foam (SPF) should bePolyurethane Foam (SPF) should bePolyurethane Foam (SPF) should behandled and applied only by personnelhandled and applied only by personnelwho have completed a comprehensive SPFwho have completed a comprehensive SPFsafety training program. The followingsafety training program. The followingslides only serve to highlight some of theslides only serve to highlight some of thesafety considerations.safety considerations.

Qualified InstallersQualified Installers

Properly Trained InstallersProperly Trained Installers

Not a DYI ProductNot a DYI Product

MSDS on siteMSDS on site MSDS on siteMSDS on site

Manufacturers Installation RequirementsManufacturers Installation Requirements

Maximum Thickness per ApplicationMaximum Thickness per Application

Personal ProtectionPersonal Protection••RespiratorRespirator

••Manufacturer SpecifiedManufacturer Specified

••Eye ProtectionEye Protection

••GlovesGloves

••Cover Exposed SkinCover Exposed Skin

Safety ConsiderationsSafety Considerations

Proper VentilationProper Ventilation

Fire ExtinguisherFire Extinguisher

Protection from Ignition SourcesProtection from Ignition Sources Protection from Ignition SourcesProtection from Ignition Sources

Construction HeatersConstruction Heaters

SmokingSmoking

TorchesTorches

Hot WorkHot Work

Proper Disposal of ContainersProper Disposal of Containers

CPI VideoCPI Video

ReRe--Entry TimesEntry Times

http://www.spraypolyurethane.org/http://www.spraypolyurethane.org/

High Pressure SPF: Drum foam spray rigHigh Pressure SPF: Drum foam spray rig

24 hours is common24 hours is common 24 hours is common24 hours is common

ManufacturerManufacturer

Low Pressure SPF: Two component kits, oneLow Pressure SPF: Two component kits, onecomponent canscomponent cans

1 hour1 hour

After Cured SPF is Relatively InertAfter Cured SPF is Relatively Inert

High Pressure Video ClipHigh Pressure Video Clip

Product StewardshipProduct Stewardship

Personal Protection: EVERYBODYPersonal Protection: EVERYBODY

Drum Handling Safety PracticesDrum Handling Safety Practices

Spill Containment Materials & ProceduresSpill Containment Materials & Procedures Spill Containment Materials & ProceduresSpill Containment Materials & Procedures

Dispose of waste according to applicableDispose of waste according to applicablefederal, state and local regulationsfederal, state and local regulations

Building Code RequirementsBuilding Code Requirements

ORC Section 314ORC Section 314FOAM PLASTICFOAM PLASTIC

Spray Foam is treatedSpray Foam is treatedthe same as all otherthe same as all otherthe same as all otherthe same as all otherfoam plasticfoam plastic

ORC Code RequirementsORC Code Requirements

Code Compliance

Prescriptive MethodsR314.1& R314.2

Performance MethodR314.3

Specific Approval

Prescriptive MethodsPrescriptive Methods

314.1.1314.1.1Surface Burning CharacteristicsSurface Burning Characteristics

Flame spread index not more than 75Flame spread index not more than 75

SmokeSmoke--developed index of not moredeveloped index of not morethan 450than 450than 450than 450

ASTM E84ASTM E84

Plywood?Plywood?

ASTM E 84/UL 723ASTM E 84/UL 723

Tunnel TestTunnel Test

Used to Determine the Burning Behavior of MaterialsUsed to Determine the Burning Behavior of Materials

Flame Spread Index and Smoke Developed are ReportedFlame Spread Index and Smoke Developed are Reported

Lower FSI & SD are BetterLower FSI & SD are Better

314.1.2 Thermal Barrier314.1.2 Thermal Barrier

Unless allowed in 314.3 (performance)Unless allowed in 314.3 (performance)all foam plastic must be separated fromall foam plastic must be separated fromthe interior by an approved thermalthe interior by an approved thermalthe interior by an approved thermalthe interior by an approved thermalbarrier that will limit the averagebarrier that will limit the averagetemperature of the unexposed surface totemperature of the unexposed surface tono more than 250no more than 250°° after 15 min. (mustafter 15 min. (mustremain in place)remain in place)

½” Gypsum Wallboard½” Gypsum Wallboard

ASTM E119ASTM E119

ASTM E 119ASTM E 119

Fire Test for BuildingFire Test for BuildingConstruction MaterialsConstruction Materials

Used to DetermineUsed to DetermineTime of Resistance toTime of Resistance toTime of Resistance toTime of Resistance toControlled FireControlled FireExposureExposure

Hourly RatingsHourly Ratings

314.2 Specific Requirements314.2 Specific Requirements

Thermal Barrier NOT RequiredThermal Barrier NOT Required

1” min. masonry or concrete1” min. masonry or concrete

Roofing, when separated by wood structuralRoofing, when separated by wood structural Roofing, when separated by wood structuralRoofing, when separated by wood structuralpanel min 15/32” with edge supportpanel min 15/32” with edge support

Attics & CrawlspacesAttics & Crawlspaces No StorageNo Storage

314.2.3 Thermal Barrier not Required:314.2.3 Thermal Barrier not Required: Entry is made only for purposes of repairs orEntry is made only for purposes of repairs or

maintenance.maintenance. The foam plastic insulation is protectedThe foam plastic insulation is protected

against ignition using one of the followingagainst ignition using one of the followingagainst ignition using one of the followingagainst ignition using one of the followingignition barrierignition barrier materials:materials: 1 1/21 1/2--inchinch--thick (38 mm) mineral fiber insulation;thick (38 mm) mineral fiber insulation; 1/41/4--inchinch--thick (6.4 mm) wood structural panels;thick (6.4 mm) wood structural panels; 3/83/8--inch (9.5 mm) particleboard;inch (9.5 mm) particleboard; 1/41/4--inch (6.4 mm) hardboard;inch (6.4 mm) hardboard; 3/83/8--inch (9.5 mm) gypsum board; orinch (9.5 mm) gypsum board; or CorrosionCorrosion--resistant steel having a base metalresistant steel having a base metal

thickness of 0.016 inch (0.406 mm).thickness of 0.016 inch (0.406 mm).

Attics & CrawlspacesAttics & Crawlspaces No StorageNo Storage

ICCICC--ES Acceptance Criteria:ES Acceptance Criteria: Appendix : Test method to determine equivalentAppendix : Test method to determine equivalent

performance to the prescribedperformance to the prescribed ignition barrierignition barrier NFPA 286NFPA 286 >4 minutes, 18 seconds>4 minutes, 18 seconds--no ignitionno ignition

barrier required.barrier required.barrier required.barrier required. Check code report for specificsCheck code report for specifics

TheThe ignition barrierignition barrier is not required where theis not required where thefoam plastic insulation has been tested infoam plastic insulation has been tested inaccordance with Section 314.3.accordance with Section 314.3.

Attics & CrawlspacesAttics & Crawlspaces w/Storagew/Storage

Thermal BarrierThermal Barrier

Exception 314.3 Specific ApprovalException 314.3 Specific Approval

Vapor RetarderVapor Retarder

Depends on ProductDepends on Product

Air Barrier Not RequiredAir Barrier Not Required

SPFA SlidesSPFA Slides

314.2.7 Sill Plates & Headers314.2.7 Sill Plates & Headers(Rim, Band or Head Joist)(Rim, Band or Head Joist)

Thermal Barrier NotThermal Barrier NotRequiredRequired

Max thickness 3Max thickness 3--1/4”1/4”

Density between .5 & 2Density between .5 & 2 Density between .5 & 2Density between .5 & 2lbs./cubic footlbs./cubic foot

Flame spread index notFlame spread index notmore thanmore than 2525 smokesmoke--developed index of notdeveloped index of notmore than 450 (ASTMmore than 450 (ASTME84 or UL 723)E84 or UL 723)

R314.4 Interior FinishR314.4 Interior Finish(Required for Prescriptive & Performance)(Required for Prescriptive & Performance)

Foam plastics shall also meet the flameFoam plastics shall also meet the flamespread requirements for interior finishspread requirements for interior finish

315.1 Flame315.1 Flame--spread not greater than 200spread not greater than 200315.1 Flame315.1 Flame--spread not greater than 200spread not greater than 200

R314.5 Termite DamageR314.5 Termite Damage(Required for Prescriptive & Performance)(Required for Prescriptive & Performance)

Limitations on below grade use in areasLimitations on below grade use in areasdesignated as “Very Heavy” per Figuredesignated as “Very Heavy” per Figure#301.2(6)#301.2(6)

Not Applicable to OhioNot Applicable to Ohio

Performance MethodPerformance Method

IRC 314.3IRC 314.3Specific ApprovalSpecific Approval

Specifically Approved by One of theSpecifically Approved by One of theFollowing Tests: NFPA 286, FM 4880, ULFollowing Tests: NFPA 286, FM 4880, UL723, UL 1040, UL 1715 or Fire Tests723, UL 1040, UL 1715 or Fire Tests723, UL 1040, UL 1715 or Fire Tests723, UL 1040, UL 1715 or Fire TestsRelated to Actual EndRelated to Actual End--Use ConfigurationsUse Configurations

Assembly with Maximum ThicknessAssembly with Maximum ThicknessIntended for UseIntended for Use

NFPA 286NFPA 286

Large Scale TestLarge Scale TestRelated to Actual EndRelated to Actual End--Use ApplicationsUse Applications

Evaluate theEvaluate the Evaluate theEvaluate theContribution of WallContribution of Walland Ceiling Interiorand Ceiling InteriorFinish to Room FireFinish to Room FireGrowthGrowth

Know the Code: Using Spray Foam Insulation In Attics and Crawl Spaces, Center forKnow the Code: Using Spray Foam Insulation In Attics and Crawl Spaces, Center forPolyurethanes IndustryPolyurethanes Industry

Common ApplicationsCommon Applications

Wall RequirementsWall Requirements

FireFire--Resistance Rated?Resistance Rated?

Thermal BarrierThermal Barrier

RequiredRequired RequiredRequired

Exception: 314.2.1 1” Masonry or ConcreteException: 314.2.1 1” Masonry or Concrete

Exception: 314.3 Specific ApprovalException: 314.3 Specific Approval

Vapor Retarder Required?Vapor Retarder Required?

Depends on Product and ThicknessDepends on Product and Thickness

Air Barrier Not RequiredAir Barrier Not Required

Firestop vs. FireblockFirestop vs. Fireblock

Through Penetration Firestop SystemThrough Penetration Firestop System: An assemblage: An assemblageconsisting of a fireconsisting of a fire--resistanceresistance--rated floor, floorrated floor, floor--ceiling, orceiling, orwall assembly, one or more penetrating items passingwall assembly, one or more penetrating items passingthrough the breaches in both sides of the assembly andthrough the breaches in both sides of the assembly andthe materials or devices, or both, installed to resist thethe materials or devices, or both, installed to resist thethe materials or devices, or both, installed to resist thethe materials or devices, or both, installed to resist thespread of fire through the assembly for a prescribedspread of fire through the assembly for a prescribedperiod of time. (ASTM E814)period of time. (ASTM E814)

FireblockFireblock: Materials used to prevent the free passage of: Materials used to prevent the free passage offlames through concealed spaces to other parts of theflames through concealed spaces to other parts of thebuilding.building.

R602.8.1 Fireblocking MaterialsR602.8.1 Fireblocking Materials

1. Two1. Two--inch (51 mm) nominal lumber.inch (51 mm) nominal lumber.

2. Two thicknesses of 12. Two thicknesses of 1--inch (25.4 mm) nominal lumber with broken lapinch (25.4 mm) nominal lumber with broken lapjoints.joints.

3. One thickness of 23/323. One thickness of 23/32--inch (18.3 mm) wood structural panels withinch (18.3 mm) wood structural panels withjoints backed by 23/32joints backed by 23/32--inch (18.3 mm) wood structural panels.inch (18.3 mm) wood structural panels.

4. One thickness of 3/44. One thickness of 3/4--inch (19.1mm)particleboard with joints backedinch (19.1mm)particleboard with joints backed 4. One thickness of 3/44. One thickness of 3/4--inch (19.1mm)particleboard with joints backedinch (19.1mm)particleboard with joints backedby 3/4by 3/4--inch (19.1 mm) particleboard.inch (19.1 mm) particleboard.

5. One5. One--halfhalf--inch (12.7 mm) gypsum board.inch (12.7 mm) gypsum board.

6. One6. One--quarterquarter--inch (6.4 mm) cementinch (6.4 mm) cement--based millboard.based millboard.

7. Batts or blankets of mineral wool or glass fiber7. Batts or blankets of mineral wool or glass fiber or otheror other approvedapprovedmaterials installed in such a manner asmaterials installed in such a manner as to be securely retained in placeto be securely retained in place..

ICC ES Modified ASTM E 814 Fire Tests of Penetration FirestopICC ES Modified ASTM E 814 Fire Tests of Penetration FirestopSystemsSystems

Building EnclosureBuilding Enclosure

Key Functions:Key Functions:

Keep Rain & Snow OutKeep Rain & Snow Out

Maintain ComfortableMaintain ComfortableTemperature InsideTemperature Inside

System Elements:System Elements:

Weather ResistiveWeather ResistiveBarrierBarrier

Thermal Control LayerThermal Control LayerTemperature InsideTemperature Inside

Minimize Energy LossMinimize Energy Loss

Keep Wind OutKeep Wind Out

Maintain ComfortableMaintain ComfortableHumidity InsideHumidity Inside

Prevent DecayPrevent Decay

Thermal Control LayerThermal Control Layer

Air BarrierAir Barrier

Vapor Control LayerVapor Control Layer

Unvented AtticsUnvented Attics Typical WallTypical Wall

Typical AtticTypical Attic Purpose of ventilationPurpose of ventilation

Prevent condensationPrevent condensation

Prevent ice damsPrevent ice dams

Lower temperature to save on cooling costLower temperature to save on cooling cost

Unvented AtticUnvented Attic


2009 IRC Addresses2009 IRC Addresses

R806.4R806.4 Unvented attic assembly requirementsUnvented attic assembly requirements

Completely within the thermal envelopeCompletely within the thermal envelope

No interior vapor retarders ceiling side (attic floor)No interior vapor retarders ceiling side (attic floor)

Wood shingles or shakes: ¼” Air SpaceWood shingles or shakes: ¼” Air Space


R806.4R806.4 Unvented attic assembly requirementsUnvented attic assembly requirements(cont.)(cont.)

Climate Zones 6, 7 & 8 AirClimate Zones 6, 7 & 8 Air--Impermeable insulationImpermeable insulation(SPF) Shall be a;(SPF) Shall be a;(SPF) Shall be a;(SPF) Shall be a; Vapor RetarderVapor Retarder

Or have a Vapor Retarder Coating or Covering in directOr have a Vapor Retarder Coating or Covering in directcontact with the underside of the insulationcontact with the underside of the insulation

Unvented AtticsUnvented Attics 5.1, 5.2 or 5.3 shall be met (Condensation5.1, 5.2 or 5.3 shall be met (Condensation

control)control)

5.1 Air5.1 Air--impermeable insulation only (SPF):impermeable insulation only (SPF): Direct Contact with underside of sheathingDirect Contact with underside of sheathing

5.2 Air5.2 Air--permeable insulation only:permeable insulation only: 5.2 Air5.2 Air--permeable insulation only:permeable insulation only: Requires Rigid Insulation on top of Roof Deck (Table R806.4)Requires Rigid Insulation on top of Roof Deck (Table R806.4)

5.3 Combination (Table R806.4)5.3 Combination (Table R806.4) AirAir--impermeableimpermeable

Direct contact with underside of sheathingDirect contact with underside of sheathing

CZ 5 Min. RCZ 5 Min. R--2020



AirAir--permeable directly under airpermeable directly under air--impermeableimpermeable

Unvented AtticsUnvented Attics Effect on Shingle LifeEffect on Shingle Life

In general, shingles installed on unvented attic assembliesIn general, shingles installed on unvented attic assembliesoperate at a slightly higher temperature. This has impacts onoperate at a slightly higher temperature. This has impacts onthe durability of roof assemblies. A 2 or 3 degree F. rise inthe durability of roof assemblies. A 2 or 3 degree F. rise inaverage temperature is typical for asphalt shingles and aaverage temperature is typical for asphalt shingles and acorresponding 10 degree F. rise in average temperature forcorresponding 10 degree F. rise in average temperature forsheathing (sheathing (Parker & Sherwin, 1998Parker & Sherwin, 1998;; Rudd & Lstiburek,Rudd & Lstiburek,sheathing (sheathing (Parker & Sherwin, 1998Parker & Sherwin, 1998;; Rudd & Lstiburek,Rudd & Lstiburek,19981998;; TenWode & Rose, 1999TenWode & Rose, 1999))

All other things being equal, applying the Arrhenius equationAll other things being equal, applying the Arrhenius equation((Cash et.al, 2005Cash et.al, 2005), a 10 percent reduction in useful service life), a 10 percent reduction in useful service lifeshould be expected. This is comparable to the effect of theshould be expected. This is comparable to the effect of theinstallation of radiant barriers. What is more significant to noteinstallation of radiant barriers. What is more significant to noteis that the color of shingles and roof orientation have a moreis that the color of shingles and roof orientation have a moreprofound effect on the durability of shingles than the choice ofprofound effect on the durability of shingles than the choice ofventing or not venting (venting or not venting (Rose, 1991Rose, 1991)) –– double or triple the effectdouble or triple the effectof venting/non venting.of venting/non venting.


Shingle WarrantiesShingle Warranties

Vary by ManufacturerVary by Manufacturer

Most Do Not void the warranty for unventedMost Do Not void the warranty for unvented Most Do Not void the warranty for unventedMost Do Not void the warranty for unventedroof assembliesroof assemblies

Typical exclusions and provisionsTypical exclusions and provisions

Shingle damage attributable to unvented roofShingle damage attributable to unvented roof

All code requirements be metAll code requirements be met

Manufacturer’s recommendations followedManufacturer’s recommendations followed


APA RecommendationAPA Recommendation11

The design, detailing & installation of roof andThe design, detailing & installation of roof andflashing systems must be complete, correct andflashing systems must be complete, correct andproperly maintainedproperly maintainedproperly maintainedproperly maintained

Building and mechanical systems must be maintainedBuilding and mechanical systems must be maintainedin good condition such that the longin good condition such that the long--term moistureterm moisturecontent of wood materials continues in a dry state forcontent of wood materials continues in a dry state forthe service life of the structurethe service life of the structure

In the event that moisture accumulation does occur,In the event that moisture accumulation does occur,the roof system must have a means to dry.the roof system must have a means to dry.

11--APA Technical Topics TTAPA Technical Topics TT--111 January 2011111 January 2011

HVAC ConsiderationsHVAC Considerations

Furnace, Water Heater, other HVACFurnace, Water Heater, other HVACEquipmentEquipment

Consult with equipment manufacturer’sConsult with equipment manufacturer’s Consult with equipment manufacturer’sConsult with equipment manufacturer’sinstallation instructions for:installation instructions for:

Clearance to Combustible RequirementsClearance to Combustible Requirements

Combustion air RequirementsCombustion air Requirements

Ventilation: ASHRAE 62.2Ventilation: ASHRAE 62.2

ClearanceClearance

R302.13 (2009 IRC)R302.13 (2009 IRC)

SPFSPF 3” clearance to any surface >2253” clearance to any surface >225°° FF

ChimneysChimneys ChimneysChimneys

BB--ventsvents

Recessed Can LightsRecessed Can Lights –– EVEN IC Rated!EVEN IC Rated!

Bath fans with heaters or heat lampsBath fans with heaters or heat lamps

DirectDirect ContactContact -- HVACHVAC

Manufacturer Requirements & ListingManufacturer Requirements & Listing

HVACHVAC

Kitchen exhaust hood ductworkKitchen exhaust hood ductwork

Dryer ventDryer vent Dryer ventDryer vent

Supply and return ductwork (M1601.3)Supply and return ductwork (M1601.3)

VentilationVentilation fansfans

DirectDirect ContactContact -- ElectricElectric


ElectricElectric

NEC 334.8NEC 334.8

Multiple wires in contact within insulated cavityMultiple wires in contact within insulated cavity Multiple wires in contact within insulated cavityMultiple wires in contact within insulated cavityneed to be deneed to be de--rated accordingly (regardless ofrated accordingly (regardless oftype of insulation)type of insulation)

ExteriorExterior only of electricalonly of electrical boxesboxes

NO DIRECT CONTACT ON KNOB & TUBENO DIRECT CONTACT ON KNOB & TUBE

DirectDirect ContactContact-- PlumbingPlumbing


PlumbingPlumbing

Gas Piping: CSST or Black Pipe,Gas Piping: CSST or Black Pipe,

DWVDWV PipePipe DWVDWV PipePipe

WaterWater PipingPiping

Sprinkler SystemSprinkler System PipingPiping


IBC Chapter 6 Types of ConstructionIBC Chapter 6 Types of Construction

Exterior Walls of Type I and II buildings must be nonExterior Walls of Type I and II buildings must be non--combustible constructioncombustible construction

603.1 Allowable Materials in Type I & II construction603.1 Allowable Materials in Type I & II construction 603.1 Allowable Materials in Type I & II construction603.1 Allowable Materials in Type I & II construction 603.1 (2) Foam Plastic Insulation in accordance with Chapter 26603.1 (2) Foam Plastic Insulation in accordance with Chapter 26

IBC Chapter 26 PlasticIBC Chapter 26 Plastic

2603 Foam Plastic Insulation2603 Foam Plastic Insulation

2009 IBC Requirements2009 IBC Requirements

Code Compliance2603.1-3 + .8

Prescriptive Methods2603.4-2603.7

Performance Method2603.9

Specific Approval

IBC 2603.2 Labeling and IdentificationIBC 2603.2 Labeling and Identification(Required for Prescriptive & Performance)(Required for Prescriptive & Performance)

LabelLabel of anof an approvedapprovedagencyagency showingshowing Product identificationProduct identification Information sufficient toInformation sufficient to

determine that the end usedetermine that the end usewill comply with thewill comply with thewill comply with thewill comply with therequirements.requirements.

IBC 2603.3 Surface Burning CharacteristicsIBC 2603.3 Surface Burning Characteristics(Required for Prescriptive & Performance)(Required for Prescriptive & Performance)

FS <75, SD <450 ASTM E84 or UL 723FS <75, SD <450 ASTM E84 or UL 723

SPF Exceptions:SPF Exceptions:

Sprinklered Cold Storage: up to 10” ThickSprinklered Cold Storage: up to 10” Thick Sprinklered Cold Storage: up to 10” ThickSprinklered Cold Storage: up to 10” Thickonly E84 tested @ 4”only E84 tested @ 4”

A, B or C Roof coverings that have FM 4450A, B or C Roof coverings that have FM 4450or UL 1256 approvalor UL 1256 approval

>4” with 2603.9 Special Approval (Room>4” with 2603.9 Special Approval (RoomCorner Test) Material E84 tested @ 4”Corner Test) Material E84 tested @ 4”

2603.4 Thermal Barrier2603.4 Thermal Barrier

Except as provided for in 2603.4.1 orExcept as provided for in 2603.4.1 or2603.9, foam plastic must be separated2603.9, foam plastic must be separatedfrom the interior by an approved thermalfrom the interior by an approved thermalfrom the interior by an approved thermalfrom the interior by an approved thermalbarrier that will limit the averagebarrier that will limit the averagetemperature of the unexposed surface totemperature of the unexposed surface tono more than 250no more than 250°° after 15 min. (mustafter 15 min. (mustremain in place)remain in place)

½” Gypsum Wallboard½” Gypsum Wallboard

ASTM E119ASTM E119

2603.4.1 Thermal Barrier Not Required2603.4.1 Thermal Barrier Not Required(SPF Related Exceptions Only)(SPF Related Exceptions Only)

2603.4.1.1 Masonry or Concrete2603.4.1.1 Masonry or Concrete

Protected by 1” masonry or concreteProtected by 1” masonry or concrete

2603.4.1.2 Cooler & Freezer Walls2603.4.1.2 Cooler & Freezer Walls

FS <25, SD <450FS <25, SD <450FS <25, SD <450FS <25, SD <450

Flash Ignition not less than 600Flash Ignition not less than 600°°

SelfSelf--Ignition not less than 800Ignition not less than 800°°

Covering not less than 0.032Covering not less than 0.032--inch aluminuminch aluminumor corrosion resistant steel having a baseor corrosion resistant steel having a basemetal thickness not less than 0.016metal thickness not less than 0.016--inchinch

Be protected by an automatic sprinklerBe protected by an automatic sprinklersystemsystem


2603.4.1.3 Walk2603.4.1.3 Walk--in Coolers in nonin Coolers in non--sprinklered buildingssprinklered buildings

Foam Plastic does not exceed 4” thicknessFoam Plastic does not exceed 4” thicknessand maximum FS of 75and maximum FS of 75

Aggregate floor area ≤ 400 ft.Aggregate floor area ≤ 400 ft.22 and theand the Aggregate floor area ≤ 400 ft.Aggregate floor area ≤ 400 ft.22 and theand thefoam plastic is covered by a metal facing notfoam plastic is covered by a metal facing notless than 0.032less than 0.032--inch aluminum or corrosioninch aluminum or corrosionresistant steel having a base metal thicknessresistant steel having a base metal thicknessnot less than 0.016not less than 0.016--inchinch


2603.4.1.4 Exterior Walls2603.4.1.4 Exterior Walls –– One StoryOne StoryBuildingsBuildings

FS ≤25, SD ≤450FS ≤25, SD ≤450

Thickness ≤ 4” and the foam plastic is Thickness ≤ 4” and the foam plastic is covered by a metal facing not less thancovered by a metal facing not less thancovered by a metal facing not less thancovered by a metal facing not less than0.0320.032--inch aluminum or corrosion resistantinch aluminum or corrosion resistantsteel having a base metal thickness not lesssteel having a base metal thickness not lessthan 0.016than 0.016--inchinch

Equipped with an automatic sprinklerEquipped with an automatic sprinklersystemsystem


2603.4.1.5 Roofing2603.4.1.5 Roofing

Under roof assembly or roof covering andUnder roof assembly or roof covering andseparated from the interior of the buildingseparated from the interior of the buildingby wood structural panel sheathing not lessby wood structural panel sheathing not lessthan .47” in thickness bonded with exteriorthan .47” in thickness bonded with exteriorthan .47” in thickness bonded with exteriorthan .47” in thickness bonded with exteriorglue.glue.

Edges blockedEdges blocked

Or T&GOr T&G

Or other approved edge supportOr other approved edge support

Or an equivalent materialOr an equivalent material

Class A, B, or C roofClass A, B, or C roof--covering assemblycovering assemblypassing FM 4450 or UL 1256passing FM 4450 or UL 1256


2603.4.1.6 Attics and Crawl Spaces2603.4.1.6 Attics and Crawl Spaces Entry is made only for service of utilitiesEntry is made only for service of utilities Protected against ignition using one of theProtected against ignition using one of the

followingfollowing ignition barrierignition barrier materials:materials: 1 1/21 1/2--inchinch--thick (38 mm) mineral fiber insulation;thick (38 mm) mineral fiber insulation;

1/41/4--inchinch--thick (6.4 mm) wood structural panels,thick (6.4 mm) wood structural panels, 1/41/4--inchinch--thick (6.4 mm) wood structural panels,thick (6.4 mm) wood structural panels,particleboard, or hardboard;particleboard, or hardboard;

3/83/8--inch (9.5 mm) gypsum board;inch (9.5 mm) gypsum board; CorrosionCorrosion--resistant steel having a base metalresistant steel having a base metal

thickness of 0.016 inch (0.406 mm).thickness of 0.016 inch (0.406 mm). Consistent with type of constructionConsistent with type of construction

Combustible coverings only permitted in combustibleCombustible coverings only permitted in combustibleconstructionconstruction


ICCICC--ES Acceptance Criteria:ES Acceptance Criteria: Appendix : Test method to determine equivalentAppendix : Test method to determine equivalent

performance to the prescribedperformance to the prescribed ignition barrierignition barrier NFPA 286NFPA 286 >4 minutes, 18 seconds>4 minutes, 18 seconds--no ignitionno ignition NFPA 286NFPA 286 >4 minutes, 18 seconds>4 minutes, 18 seconds--no ignitionno ignition

barrier required.barrier required. Check code report for specificsCheck code report for specifics

TheThe ignition barrierignition barrier is not required where theis not required where thefoam plastic insulation has been tested infoam plastic insulation has been tested inaccordance with Section 2603.9accordance with Section 2603.9


2603.4.1.13 Type V Construction Sill2603.4.1.13 Type V Construction SillPlate & HeaderPlate & Header Max thickness 3Max thickness 3--1/4”1/4”

Density between 1.5 & 2 lbs./cubic footDensity between 1.5 & 2 lbs./cubic foot

Flame spread index not more thanFlame spread index not more than 2525 smokesmoke-- Flame spread index not more thanFlame spread index not more than 2525 smokesmoke--developed index of not more than 450 (ASTM E84developed index of not more than 450 (ASTM E84or UL 723)or UL 723)

2603.5 Exterior Walls of Buildings any Height2603.5 Exterior Walls of Buildings any HeightType I, II, III, & IV ConstructionType I, II, III, & IV Construction

Must comply with 2603.5.1Must comply with 2603.5.1--2603.5.72603.5.7

2603.5.1 Fire resistance rated walls2603.5.1 Fire resistance rated walls

The installation of the foam plastic shall notThe installation of the foam plastic shall notreduce the required firereduce the required fire--resistive rating ifresistive rating ifreduce the required firereduce the required fire--resistive rating ifresistive rating ifrequired to have one.required to have one.

ASTM E119 (UL 263)ASTM E119 (UL 263)

2603.2 Thermal Barrier2603.2 Thermal Barrier

1515--min. thermal barrier (typ. ½ gypsummin. thermal barrier (typ. ½ gypsumwallboard)wallboard)

2603.5 Exterior Walls of Buildings any Height2603.5 Exterior Walls of Buildings any Height

2603.5.3 Potential Heat2603.5.3 Potential Heat

The potential heat of the foam plastic asThe potential heat of the foam plastic asdetermined by NFPA 259 cannot exceed thatdetermined by NFPA 259 cannot exceed thatwhich has been successfully tested in accordancewhich has been successfully tested in accordancewith NFPA 285with NFPA 285with NFPA 285with NFPA 285

Except oneExcept one--story buildings that comply with 2603.4.1.4story buildings that comply with 2603.4.1.4

2603.5.4 Flame Spread & Smoke Developed2603.5.4 Flame Spread & Smoke Developed

FS ≤25, SD ≤450FS ≤25, SD ≤450

2603.5 Exterior Walls of Buildings any Height2603.5 Exterior Walls of Buildings any Height

2603.5.5 Test Standard2603.5.5 Test Standard

The wall assembly shall be tested in accordanceThe wall assembly shall be tested in accordancewith NFPA 285 Standard Fire Test Method forwith NFPA 285 Standard Fire Test Method forEvaluation of Fire Propagation Characteristics ofEvaluation of Fire Propagation Characteristics ofExterior NonExterior Non--LoadLoad--Bearing Wall AssembliesBearing Wall AssembliesExterior NonExterior Non--LoadLoad--Bearing Wall AssembliesBearing Wall AssembliesContaining Combustible ComponentsContaining Combustible Components

Except oneExcept one--story buildings that comply with 2603.4.1.4story buildings that comply with 2603.4.1.4

NFPA 285NFPA 285

Typical Fire ScenarioTypical Fire Scenario

30 min. burn + 10 min. after30 min. burn + 10 min. after

Vertical and lateral flame propagation over theVertical and lateral flame propagation over the Vertical and lateral flame propagation over theVertical and lateral flame propagation over theexterior face of the wallexterior face of the wall

Vertical flame propagation within the core fromVertical flame propagation within the core fromone story to the nextone story to the next

Vertical flame propagation over the interiorVertical flame propagation over the interiorsurface from one story to the nextsurface from one story to the next

Lateral flame propagation from the compartmentLateral flame propagation from the compartmentof fire origin to adjacent compartments.of fire origin to adjacent compartments.

NFPA 285NFPA 285

Required for any wall assembly thatRequired for any wall assembly thatcontains foam plastic, even brickcontains foam plastic, even brick

Assembly test of ALL componentsAssembly test of ALL components Assembly test of ALL componentsAssembly test of ALL components

Substitutions can change resultsSubstitutions can change results

Someone knowledgeable with the test andSomeone knowledgeable with the test andthe materials must evaluate substitutionsthe materials must evaluate substitutionsand must be approved by the code officialand must be approved by the code official

2603.5 Exterior Walls of Buildings any2603.5 Exterior Walls of Buildings anyHeightHeight

2603.5.6 Label2603.5.6 LabelRequiredRequired

2603.5.7 Ignition2603.5.7 Ignition

Shall not exhibitShall not exhibitsustained flamingsustained flamingwhen tested viawhen tested viaNFPA 268NFPA 268

2603.6 Roofing2603.6 Roofing

Comply withComply with

2603.2 Labeling2603.2 Labeling

2603.3 Surface Burning *Exceptions2603.3 Surface Burning *Exceptions 2603.3 Surface Burning *Exceptions2603.3 Surface Burning *Exceptions

2603.4 Thermal Barrier *Exceptions2603.4 Thermal Barrier *Exceptions

Class A, B, or C assembly where tested inClass A, B, or C assembly where tested inaccordance with ASTM E 108 or UL 790accordance with ASTM E 108 or UL 790

ASTM E 108 Fire Tests for RoofASTM E 108 Fire Tests for RoofCoveringCovering

Class A, B, or CClass A, B, or CBurning BrandBurning Brand

SlopeSlope

Spread of flameSpread of flame

2603.7 Plenums2603.7 Plenums

Thermal barrier per 2603.4Thermal barrier per 2603.4

Or, pass large scale test in accordance withOr, pass large scale test in accordance with2603.9 Special Approval2603.9 Special Approval2603.9 Special Approval2603.9 Special Approval

Foam plastic shall not be used as wall finishFoam plastic shall not be used as wall finishexcept as permitted in 2604 Interior Finishexcept as permitted in 2604 Interior Finishand Trimand Trim

2603.8 Protection Against Termites2603.8 Protection Against Termites

Deep South and CaliforniaDeep South and California

NA OhioNA Ohio

Performance ApproachPerformance Approach

2603.9 Special Approval2603.9 Special Approval

Specifically Approved based on largeSpecifically Approved based on large--scalescaletests such as; NFPA 286, (with acceptancetests such as; NFPA 286, (with acceptancetests such as; NFPA 286, (with acceptancetests such as; NFPA 286, (with acceptancecriteria of Section 803.2), FM 4880, UL 723,criteria of Section 803.2), FM 4880, UL 723,UL 1040, UL 1715 or Fire Tests Related toUL 1040, UL 1715 or Fire Tests Related toActual EndActual End--Use ConfigurationsUse Configurations

Assembly with Maximum ThicknessAssembly with Maximum ThicknessIntended for UseIntended for Use

InspectionsInspections

Insulation Card, Electric panel or atticInsulation Card, Electric panel or attic

Minimum thickness metMinimum thickness met

Does the installation qualify as a vaporDoes the installation qualify as a vapor Does the installation qualify as a vaporDoes the installation qualify as a vaporretarder or require a separate vapor retarder?retarder or require a separate vapor retarder?

Is a thermal barrier required?Is a thermal barrier required?

Is an ignition barrier required?Is an ignition barrier required?

Does the installation require a coating?Does the installation require a coating?(intumescent or vapor)(intumescent or vapor)

Equipment requiring combustion airEquipment requiring combustion air

SummarySummary

Qualified Installers OnlyQualified Installers Only

ReRe--entry Timesentry Times

24 Hours High Pressure24 Hours High Pressure

1 Hour Low Pressure1 Hour Low Pressure 1 Hour Low Pressure1 Hour Low Pressure

Open Cell & Closed Cell SPFOpen Cell & Closed Cell SPF

All SPF are Thermosetting (won’t melt) & AirAll SPF are Thermosetting (won’t melt) & AirBarrierBarrier

Thermal Barrier to Separate Living AreasThermal Barrier to Separate Living Areas

Performance ApproachPerformance Approach –– Special ApprovalSpecial Approval

No Direct Contact >225No Direct Contact >225°°

Questions?Questions?

Brian LieburnBrian LieburnSenior Code AdvisorSenior Code Advisor

Dow Building SolutionsDow Building SolutionsDow Building SolutionsDow Building Solutions

[email protected]@dow.com

614614--850850--53775377

References and AcknowledgementsReferences and Acknowledgements

ICC 2009 IBC, 2009 IRCICC 2009 IBC, 2009 IRC

ICCICC--ESES

Center for Polyurethanes IndustryCenter for Polyurethanes Industry Center for Polyurethanes IndustryCenter for Polyurethanes Industry

Spray Polyurethane Foam AllianceSpray Polyurethane Foam Alliance

Underwriters LaboratoriesUnderwriters Laboratories

American Plywood AssociationAmerican Plywood Association

Building Science CorporationBuilding Science Corporation

Jess Beitel, Hughes and AssociatesJess Beitel, Hughes and Associates

sspraypray fofoamam insinsulaulattionion anandd tthehe … · 2011-12-22 · sspraypray fofoamam...

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