Decking Installation & Maintenance Guide TimberTech PRO™, TimberTech EDGE™, and Specialty Decking Installing TimberTech® Decking .................................................................................... 2 Fastening Methods ........................................................................................................ 4 TimberTech® Square Shouldered Boards ...................................................................... 5 Trimming a TimberTech® Deck ................................
Installing TimberTech® Decking TimberTech Decking should be installed using the same good building principals used to install wood or composite decking and in accordance with the local building codes and the installation guidelines included below. AZEK® Building Products Inc. accepts no liability or responsibility for the improper installation of this product.
Installing TimberTech® Decking Extreme Heat Warning Working With TimberTech Boards Be aware of excessive heat on the surface of TimberTech products from external sources, such as but not limited to, fire or reflection of sunlight from energy-efficient window products. Low-emissivity (Low-E) glass can potentially harm TimberTech products. Low-E glass is designed to prevent passive heat gain within a structure and can cause unusual heat build-up on exterior surfaces.
Installing TimberTech® Decking Installation Preparation Follow these guidelines for best deck installation: • TimberTech Deck Boards are one-sided products. Deck Boards are to be installed with the grain side up for the walking surface. Fascia is to be installed grain side out. • TimberTech Fascia is one-sided. • Prior to installation, check to make sure all joists are level, structurally sound, and there are no nails or screws protruding.
Fastening Methods TimberTech® Square Shouldered Boards TimberTech recommends the use of TimberTech Cortex or TimberTech TOPLoc for square shouldered deck board installations. Pre-drilling is required when within 1-1/2” of the ends of the board and for temperatures below 45 degrees Fahrenheit to avoid splitting and screw shear. Alternate fasteners are stainless steel or high-quality coated composite deck screws.* TimberTech EDGE Collection (3- Sided Cap) TimberTech PRO Collection (4- Sided Cap) 5.360” 5.
TimberTech® Square Shouldered Boards TimberTech PRO™, TimberTech EDGE™, TwinFinish®, ReliaBoard®, and DockSider® Important Information To get information on other TimberTech products, visit timbertech.com or ask your dealer for these installation guides: • TimberTech boards are intended to be installed embossed side up. The unembossed surface is not to be used as a walking surface. This applies to all decking surfaces.
Square Shouldered Boards/Trimming a TimberTech Deck TimberTech PRO™, TimberTech EDGE™, TwinFinish®, ReliaBoard®, and DockSider® Stair Installation TimberTech does not recommend installing boards on steps without a riser board. • Stairs should be constructed per local code requirements. • Ensure the stringer step is at least the depth of two full boards plus a 1/8” to 3/16” gap between boards. • For gapping requirements, see page 3.
CONCEALoc® Hidden Fastener Important Information CONCEALoc Hidden Fasteners were designed exclusively to install TimberTech grooved and square shouldered boards. Always be sure to check and cut the factory cut ends of all boards to ensure they are square. • In areas with obstructed airflow such as roofs and on-grade applications, a minimum of 1-1/2”, sleeper system, is required. • Sleeper system must be supported by and connected to the substructure over which the deck is built.
CONCEALoc® Hidden Fastener 3 INSTALL CONCEALoc® FASTENERS • Install provided screw at 45° angle through the fastener and into the joist while applying pressure on the fastener. • Install one fastener and screw at each joist. • Make sure fastener is in full contact with edge of board and the screw is holding the fastener down tight to the deck board. 4 COMPLETE INSTALLATION • Place the next board into position against the fasteners.
CONCEALoc® Hidden Fastener 6 HOW TO: INSTALL ON DIAGONAL • When the deck is located in a corner of the house, start with small triangular piece of decking in the corner and work your way out. • Offset the center 1/2” towards the long point of the joist, so screw will not exit the side of the joist when driven. 7 Incorrect Correct: Shift over 1/2” HOW TO: REPLACE A BOARD • Make two parallel cuts down the center of the board to be replaced, then remove the center piece.
Cortex® Hidden Fastening System Cortex® Hidden Fastening System Installation Instructions Suggested Drills Impact Drivers are not recommended when using TimberTech Cortex. Corded or cordless (18V battery) drill with 1/2” chuck. Important Information Restricted Cortex Uses • Pre-drilling with a 3/16” drill bit is always required when installing Cortex in TimberTech decking. • The Cortex Setting Tool must be used to set the Cortex screw to the proper depth.
Cortex® Hidden Fastening System 1 PRE-DRILL • Pre-drill deck board with a 3/16” drill bit 2 DRIVE SCREWS INTO JOISTS • Using Setting Tool provided, drive screw at medium or high speed until it disengages at the proper level below the deck surface. • Drive at one continuous speed, do not slow down. • Install two screws into decking at each joist. • Maximum spacing between each row of screws should be 16” on center. 3 INSTALL PLUG • Place plug into cored hole and gently tap flush with deck surface.
Care and Handling With proper installation and care, TimberTech® products will provide years of outdoor living pleasure. For most current recommendations or to download a PDF, visit TimberTech.com/warranty-and-care/care-and-cleaning Recommended Products for TimberTech PRO™ and TimberTech EDGE™ or surface contamination, use an all purpose cleaner like Chomp® Pro Gutter Cleaner or Zep® Fast 505.
Care and Cleaning The cleaners TimberTech recommends for periodic cleaning or use with ReliaBoard, TwinFinish, and DockSider include: • Wash Safe Spray and Clean Composite Deck Cleaner • Resist Mist Composite Deck Cleaner • Corte Clean • Super Deck Composite Deck Cleaner • Thompson’s Water Seal — Oxy Action Dirt, Grime, Tannin and Mildew Stains: TimberTech wood/plastic composite products are formulated to inhibit mildew growth and minimize staining.
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Decking Installation & Maintenance Guide TimberTech 894 Prairie Avenue Wilmington, OH 45177 TimberTech.com 1.800.307.
