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TERRAFENCE™

Architectural and Installation Specifications

High performance, GreenSpec® Listed composite building materials

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Natures Composites TerraFence™ Architectural & Installation Specifications

Table of Contents

Description Page

Architectural Specification 3

TerraPost™ - 6x6 v. 4x4 post comparison 7

6’ Regular Privacy Fence 8

4’ Regular Privacy Fence 9

6’ Picture Frame Fence 10

4’ Picture Frame Fence 11

2 Rail – Ranch Rail Fence 12



Ranch Rail Lock Installation 15

8’ TerraPicket™ Rail Spacing 16

TerraWeave™ Design and Material List 17Ornamental Fence Design 19

Gate Recommendations 20

Green Certifications 21 GreenSpec® Listed BioPreferred® Program LEED


TerraFence™ Architectural Specifications

Part 1 GENERAL

1.1 SECTION INCLUDESSpecifier Notes: This section covers Natures Composites TerraFence™ fence system.

A. Composite fence posts, rails and boards made from wheat straw cellulose and recycledHDPE.

B. Post caps.C. Concrete.D. Fasteners and hardware.

1.2 RELATED SECTIONSSpecifier Notes: Edit the following list of related sections as required for the project.

A. Section 02200 Earthwork.B. Section 02100 Site preparation.C. Section 02900 Landscaping.D. Section 03000 Cast in place concrete.

1.3 REFERENCESSpecifier Notes: List standards referenced in this section, include designations and titles. Compliance withstandard is not required, but merely lists those used.

A. Tensile Test (breaking strength) – ASTM D 638-94-B1. High temperature2. Low tempertature3. Room temperature

B. Density – ASTM D 792C. Compressive Strength – ASTM D 695D. Modulus of Elasticity – ASTM D 695E. Izod Impact – ASTM D 256-93AF. Coefficient of Linear Thermal Expansion – ASTM E 831-93G. Screw Withdrawal – ASTM 1761H. Nail Withdrawal – ASTM 1761I. Flash Point – ASTM D 1929J. Flammability of Interior Materials – FMVSS No. 302K. Flame Spread Factor (Fs) – ASTM E 162L. Heat Evolution Factor (Q) – ASTM E 162M. Radiant Panel Index (Is) – ASTM E 162N. Water Absorption – ASTM D 570-98O. Mold/Mildew Resistance – AWPA Standard E24-06P. Mold Cabinet Test – ASTM D 3273Q. Accelerated Weathering Test – ASTM D 4329

1.4 SUBMITALSSpecifier Notes: Edit the following list as required for the project.

A. Comply with Section 01330 – Submittal Procedures.B. Shop drawings of fence and gates with all dimensions and details. Drawings must include

post foundations.


C. Recycled Content: Letter from manufacturer certifying percentage of post consumer recycledcontent and post industrial recycled content.

D. Product material data: Fence manufacturers’ technical data and installations instructions.E. Color: Submit 6” (152mm) sample of each component showing color and texture. 1. [Harvest

Cedar] 2. [Sequoia] 3. [Aspen Gray] 4. [Ravenwood] 5. [Timber Brown] 6. [Wenge]F. Accessories: Product data for hardware and fasteners.G. Concrete: Manufacturer’s product data and installation instructions.H. Include manufacturer’s Material Safety Data Sheets.

1.5 QUALITY ASSURANCESpecifier Notes: Edit as required for the project.

A. Fence installer must specialize in work of this section with documented three years minimumexperience and five successful installations of wood or composite fencing of similar scope.

B. Select materials that deteriorate minimally under installed climatic and geographic conditions.

1.6 DELIVERY, STORAGE, AND HANDLINGA. Keep materials clean and dry during delivery. Recommend covered storage.B. Store materials on stringers 6” (152mm) above ground surface in manufacturer’s unopened

packaging until ready for installation.C. Support stored product on blocking no more than 24” apart.D. Protect concrete against exposure to weather and contact with damp or wet surfaces.

1.7 PROJECT CONDITIONSA. Do not place concrete in temperatures below 40°F (4°C) or if temperatures are expected to

go below 32°F (0°C) within a 24-hour period.

1.8 WARRANTYSpecifier Notes: Edit to include installers’ workmanship warranty if required.

A. Provide to owner the original manufacturer’s warranty document outlining the terms andconditions of the (20) twenty year limited products warranty.

B. Warranty qualifications require installation per manufactures recommended specifications.

Part 2 PRODUCTS

2.1 MANUFACTURERSSpecifier Notes: List the manufacturers accepted for this project.

A. Acceptable Manufacturer:Natures Composites1302 Industrial Park Ave.Torrington, WY 82240

B. [Substitutions: Not permitted.]C. [Requests for substitutions will be considered in accordance with provisions of section01600.]

2.2 COMPONENTSSpecifier Notes: Determine fence height. Select post lengths required by local code, regional wind loadrequirements, hole depth and frost line.

A. Square posts (2 options): hollow and non-embossed1. 5.25” x 5.25” x multiple lengths (see specifications list for available lengths)2. 3.875” x 3.875” x multiple lengths (see specifications list for available lengths)


B. Gate posts – see recommended guidelines and spec’d gate kitsC. Rail: 1.5”x 3.5” x 12’ (38mm x 89mm x 3658mm) solid wood grain.D. Flat top fence boards: .375”x 5.125” x 6’ (9.5mm x 130mm x 1828mm) solid wood grain.E. Dog eared pickets: .375”x 5.125” x 6’ (9.5mm x 130 mm x 1828mm) solid wood grain.F. Topper: 1.0”x 5.5” x 12’ (25mm x 140mm x 3658mm) solid wood grain.G. [Round post: 3.75” (89 mm) diameter x 6.5’ (1981mm) solid smooth.]

2.3 ACCESSORIESSpecifier Notes: Select desired color.

A. Nails and screws:1. Nails reference ICC ESR-1539.2. Screws: Reference ICC ES AC120 corrosion resistant or coated to match composite

color3. Pneumatic nails – installer

B. Bolts, washers and nuts: Stainless steel or hot dipped galvanized of sizes recommendedby manufacturer.C. Post caps: Manufacturer’s standard post cap in color to match or accent.

1. [Harvest Cedar] [Sequoia] [Aspen Gray] [Ravenwood] [Timber Brown] [Wenge]

2.4 GATESSpecifier Notes: Select dry mix method approved or not approved

A. Natures Composites recommends the use of Adjust-A-Gate systems or “like” systems1. All gates shall be made to allow for expansion and contraction of composite

materials.2. Gates may be installed using standard hardware and gate kits (Ex: Adjust-A-Gate).3. For gates over 3’0” (914mm) in width the frame shall be constructed from rectangular

tubing to nearly match the appearance of the composite rails.4. A gate opening of 16’ (4877mm) is the widest possible with composite cladding.5. On widths over 6’0” (1,828mm) use double swing gates.

a. Recommend gate wheel installed on gates over 5’-0” (1,524 mm) in width.6. All gates shall be swing type hinged for 90° swing.7. Number of hinges and size of hinge determined by gate width, height and weight

(“moment”).

2.5 SETTING MATERIALSSpecifier Notes: List approved equal, if any.

A. Concrete: Fast-Setting Concrete1. QUIKRETE® or approved equal

a. Minimum 28-day compressive strength of 3000 psi (20 Mpa).

Part 3 EXECUTION

3.1 EXAMINATIONA. Inspect substrates and conditions affecting work of this section. Do not proceed until

unsatisfactory conditions have been corrected.B. Verify final grades and elevations before proceeding with fence installation.C. Property owner or General Contractor will clearly establish legal boundaries and property

lines.D. Contact local utility company to locate any underground pipelines or cables before digging

postholes.3.2 INSTALLATION


Specifier Notes: Check code for local frost level. Edit as required by regional climatic and geographicconditions. Select dry or wet mix concrete method.

A. Plot fence line.B. Layout: Measure the overall length of the fence to determine the number of 6’ (1828mm)

sections you will need by spacing posts on 6’ (1828mm) centers. Make the fence come outeven with the length of the layout by spacing the shorter sections at the corners, neargateposts or buildings.

C. Dig post holes: Using a post hole digger or auger, drill and hand excavate postholes to thedepth, diameter and spacing as indicated on drawings, in firm, undisturbed or compacted soil.

a. The exact depth and diameter to be determined by local code requirements, frostline, wind loading requirements of the region and soil conditions.

b. Dig conical shaped holes – slightly larger at the bottom than at the top.D. Tamp 3”-6” (76 mm – 152 mm) of pea gravel into the bottom of the hole for drainage.E. Line posts to be set in [dry] [wet] mix concrete. The use of wet mix concrete is recommended

for all terminal posts for additional strength.a. Foundation:

i. Hollow line posts shall extend 2’-6” (762mm) into a 2’-6” (762m) concreteencasement. Encasement shall be 10” (254 mm) diameter.

ii. Hollow end and corner posts shall extend 3’- 0” (914mm) into a 3’-0”(914mm) concrete encasement. Encasement shall be 12” (305mm)diameter.

iii. Hollow gate posts supporting gates less than 3’-0” (914mm) in width shallextend 3’-0” (914mm) into a 3’-0” (914mm) concrete encasement.Encasement shall be 12” (305 mm) diameter.

iv. Gate Hinge posts supporting gates over 3’-0” (914mm) but less than 6’-0”(1828mm) in width shall extend 3’-0” (914mm) into a 4’-0” (1219mm)concrete encasement. Encasement shall be 16” (406 mm) diameter.

v. Recommend three # 3 {3/8” (9.5mm) diameter} or #4 {1/2” (12.7mm)diameter} reinforcing bars in continuous round or square hoops placedaround the post. One 3” (76mm) above the bottom of the encasement, asecond 3” (976mm) down from the top of the concrete and the third placedin-between the top and bottom hoops.

vi. Recommend gate wheel installed on gates over 5’-0” (1524mm) in width.vii. Top of concrete encasement should finish 2” (51mm) below grade. Use soil

to bring top of hole to final grade.b. Gate posts:

i. Length and style determined by gate weight, width and height (moment).ii. Pre-drill all holes when using thru bolts. Fill with concrete.iii. Use fender washers or back up plates on all bolt heads or nuts.

c. Rail attachment: After posts are set, mark rail locations according to drawings.i. On sloping ground, cut both rail ends at a diagonal plumb with post.ii. Attach rails to posts using: 1. Screws; 2. Brackets; 3. Pre-routed holesiii. Allow ¼” gaps on each end to allow for expansion/contraction of rail.

d. Fence board or picket attachment: Position fence boards 2” (50.8mm) above level ofground.

i. Attach boards to rails using [1 ½”-1 ¾” (38mm-44mm)] composite screwsrecommended by manufacturer, two per rail. Pneumatic nails can be usedalso. Installer responsible for depth and pressure settings.

e. Post Capsi. Use PL400 Heavy Duty Construction Adhesive (or) pre-drill pilot hole in

cap and secure with small fastener

3.3 PROTECTION

f. Protect installed products until completion of project.


g. Repair or replace any damaged products

3.4 REMOVAL AND CLEANING

h. Remove debris caused by installation and dispose of in accordance with federal,state and local guidelines.

i. Remove excess concrete on posts or ground before it cures. If concrete has cured,remove by mechanical means without damaging composite fence components.

j. If cleaning is required, clean fence with conventional deck wash products.k. Mildew and/or other environmental-related matter on fencing products do not qualify

for warranty consideration. Natures Composites recommends the use of composite deckwash products to clean composite fencing or decking products.


TerraPost™ - Natures Composites offers the market two different optional sizes for its hollowposts while both posts are “stand alone” post systems that don’t require slipping over wood, aluminumor steel posts to support them like with competing vinyl and wood plastic composite technologies.

TerraPost™ 6x6 (left) and 4x4 (right) shown above

6x6 TerraPost™ - The post has a noticeably larger appearance compared to the 4x4 option, has awall thickness of 3/8” and has a 43% higher wind rating. The weight per linear foot is the same between6x6 and 4x4 post options. For ranch rail and privacy fence systems, the 6x6 TerraPost™ is “pre-routed” so that the railing systems are inserted into the posts and secured using Natures CompositesRail-Lock™ technologies. This creates a cleaner looking fence with less fasteners and hardware plusit’s much quicker to install and the rail spacing specs are already “fixed” so the installer can avoidmaking common errors associated with correctly spacing the fencing rails.

Wind Ratings - TerraPost™ SystemsPost Description Privacy Fence Height (ft) Post Spans (ft) Wind Rating (mph)6x6 6 6 1006x6 8 6 706x6 8 4 90

4x4 6 6 704x4 8 4 65Advanced Materials Testing Laboratory, University of Wyoming 2007-2010.

2. 4x4 TerraPost™ - The post features a 5/8” wall thickness utilizing Natures Composites cuttingedge material science that has exceptional screw withdrawal properties. The 4x4 TerraPost™ option isspecified for use in Natures Composites decking and hand railing systems. While the 4x4 TerraPost™


option provides less wind resistance compared to the 6x6 post systems, it does provide fencingcustomers some advantages like the ability to fasten the railing system to the face or outer wall of thepost similar to how wood fencing systems are installed. As a second option, consumers, contractorsand architects can specify the use of 2x4 joist hanger brackets that allow the installation of the railsbetween posts. A third option is to rout the posts (similar to the 6x6 post system) which provides thecleanest installation and allows for more efficient expansion and contraction of the 2x4 rails.

TerraPost™ SpecificationsSize (Actual) Length Weight (lbs) Colors4” x 4” (3.875” x 3.875”) 5’ 20 Avail. in all colors4” x 4” (3.875” x 3.875”) 7’ 28 Avail. in all colors4” x 4” (3.875” x 3.875”) 8’ 32 Avail. in all colors4” x 4” (3.875” x 3.875”) 11’ 44 Avail. in all colorsOther lengths available

6” x 6” (5.25” x 5.25”) 5’ 19.5 Avail. in all colors6” x 6” (5.25” x 5.25”) 7’ 27.3 Avail. in all colors6” x 6” (5.25” x 5.25”) 8’ 31.1 Avail. in all colors6” x 6” (5.25” x 5.25”) 11’ 43 Avail. in all colorsOther lengths available


8’ TerraPicket™ - Rail Spacing Diagram

Post spans for 8’ tall privacy fences:1. 6x6 TerraPost™ - 6’ on post centers2. 4x4 TerraPost™ - 4’ on post centers


TerraWeave™ Design

Figure 1: Front view

Figure 2: Top view


Figure 3: Top angle view

General Specs:1. Posts set on 75.5” centers2. Privacy fence height (pickets) – 5.55’

Material List (per 6’ section):Description Product Specification QuantityTerraPicket™ 0.375” x 5.125” x 6’ (square top) 13TerraPost™TerraPost™ cap

4.0” x 4.0” x 8’ (see Note A) 11

Balusters 1.25” x 1.25” 6’ (see Note B) 3Note A: Consult local building code for actual post lengths. Allow for extra posts for end runs or corners.Note B: Allow for extra balusters for end runs or corners. Field cut balusters to 66.625”.

Summary:Use 72” pickets (13 per section) and 3 – 66 5/8” balusters. Space the post at 75 ½” inches oncenter (71 ½” inside to inside). This allows for using the full 72” picket and not having to cut eachone to length. The posts are 8’ to allow for 2’ below grade.

Attach the balusters to the center of each post and weave the pickets around the center baluster.Attach the pickets to the middle baluster. To be safe, install 2 screws per picket…same on theends.


Gate Recommendations

Natures Composites recommends the following for gate installations up to 48” wide usingthe TerraFence™ product line:

1. Set gate post in concrete to a depth determined by soil conditions and localbuilding codes (24” minimum).

2. Fill TerraPost™ solid using either composite material or concrete. When usingconcrete fill post to within 2” from the top of the post. Be sure to tap the sidesof the post to help void air pockets that will form in the concrete. Allow concreteto fully cure (in accordance with the manufacturer) before hanging gate.

3. Attach gate hardware to post using a 5/8” diameter hinge bolt pin. Tighten nutand washer as required being careful not to over tighten. See pictures below.

a. Natures Composites recommends that customers fabricate gates usingsteel framed gate kits (Ex: Adjust-A-Gate) to support weight of compositebuilding materials

b. Installer may want to elect drilling and installing 5/8” hinge bolt prior toconcrete setting up.

(Natures Composites is not responsible for actual gate installations and performance)


Green Certifications

GreenSpec® ListedIssued by: Building Green, Inc122 Birge Street, Suite 30Brattleboro, VT 05301Ph. 802-257-7300Fax 802-257-7304www.BuildingGreen.com

Certification date: September 2007

Direct TerraFence™ links:http://www.buildinggreen.com/auth/productsByCsiSection.cfm?SubBuilderCategoryID=4914http://www.enn.com/green_building/article/22843

BioPreferred® ProgramIssued by: United States Department of Agriculture2272 Howe Hall, Suite 2620Ames, Iowa 50011Ph. 877-251-6522Fax 515-294-4925http://www.biopreferred.gov

Certification date: May 2008

Direct TerraFence™ links:http://www.catalog.biopreferred.gov/bioPreferredCatalog/companyDetails?ID=2934

LEED (Leadership in Energy and Environmental Design) CreditsResource Reuse

EA Credit 3Recycled Content

MR Credit 4Local/Regional Materials (applies to Rocky Mountain and Western Region of United States)

MR Credit 5Rapidly Renewable Materials

MR Credit 6Others

Consult most up to date LEED Information

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