B. Wood-Plastic Composite Lumber (WPC): a. Material Description: Composite Decking consisting of recycled Linear Low-Density Polyethylene (LLDPE) and recycled wood. The product is extruded into shapes and sizes as follows: i. Trex Transcend / Trex Signature Decking Boards (nominal dimensions); 1” x 5.5”. ii. Lengths – 12, 16, and 20 feet iii. Color – To be specified by owner from Trex’ standard list of colors. b. Physical and Mechanical Properties as follows: Test Test Method Value Flame Spread Index ASTM E84 Class B Thermal Expansion ASTM D1037 1.9 x 10ˉ⁵ inch/inch/degreeF Moisture Absorption ASTM D1037 < 1% Screw Head Pull-Through ASTM D1761 588 lb/in per screw Fungus Resistance ASTM D1413 Rating - no decay Termite Resistance AWPA E1-72 Rating = 9.6 C. Fasteners: 1. Screws: Manufactured and sold by Starborn Industries, Inc. (see CCRR-0325) a. Cladding Attachment to Wood Furring Strips: Trex Literature b. Cladding Attachment to Steel Furring Strips: Trex Literature PART 3 Execution 3.1 Examination A. Do not begin installation until substrates have been properly prepared. B. If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding. 3.2 Preparation A. Clean surfaces thoroughly prior to installation. B. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions. C. A copy of the manufacturer's instructions must be available to installers on the jobsite during installation. 3.3 Installation A. Install in accordance with manufacturer's instructions, applicable codes, and Intertek Research Report No. CCRR-0325, approved submittals, and in proper relationship with adjacent construction. B. Cut, drill, and rout using carbide tipped blades. C. Do not use composite wood material for structural applications 3.4 Cleaning A. Following cleaning recommendations as found in Trex installation guide at: Trex Literature
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