Installation Guide

Page 2
TimberTech AZEK
®
Decking & Rim Joist Covers 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. TimberTech AZEK
Decking & Rim Joist Covers may not be suitable for every application and it is the sole responsibility of the installer to be sure
that TimberTech AZEK Decking & Rim Joist Covers is fit for the intended use. Since all installations are unique, it is also the
installer’s responsibility to determine specific requirements for each Deck application. AZEK Building Products recommends
that all applications be reviewed by a licensed architect, engineer or local building official before installation. To get more
information visit TimberTech.com.
Tools Required
TimberTech AZEK Decking & Rim Joist Covers can be installed with a minimum number of readily available tools. Many other
tools are available that can be used for installation. All tools should be used per applicable manufacturers’ instructions.
Some of the basic tool requirements:
• Cordless Driver • Carpenter Square
• Chalk Line • Spacing Tools
• Tape Measure • Miter Saw
• Jig Saw • Safety Glasses
Use the jigsaw to cut around obstructions such as posts. For best results a miter saw with a fine-toothed, carbide-tipped
finish trim blade (12”-60 tooth minimum) works well for cutting. For a power miter or compound power miter saw a fine
finish alternate top bevel blade is also recommended. When working with AZEK products be sure to wear proper clothing and
safety equipment. Safety glasses should be used during the entire installation process. Do not use any cordless saws.
STOP! Read this section before you start!
TimberTech AZEK Decking
AZEK does not recommend the use of rubber or vinyl
products (welcome mats, planters, etc.) on deck boards. A
reaction can occur that causes discoloration of the decking
under the rubber/vinyl product. This is a common caution
for polymer decking products.
Do NOT nail AZEK Deck boards.
Cutting or drilling metal should not be done on AZEK Deck
boards as metal shavings may be come hot and embed
themselves into the deck boards.
Always be sure to check and cut the factory cut ends of
boards to ensure they are square.
Walking Surface
AZEK deck boards need to be installed embossed side up.
Static Electricity
The buildup or generation of static electricity is a naturally
occurring phenomenon in many plastic based products such
as carpeting, upholstery, and clothing, and can occur on
alternative decking under certain environmental conditions.
Static electricity is not a defect and can occur naturally.
Cantilevering
For best results, don’t cantilever over 1/2”.
Routing
AZEK Deck/Rim Joist Covers should not be routed with the
exception of the start/stop boards (see page 6 step 8).
Color and Grain Patterns
AZEK Deck is designed to mimic the look of real wood, and
like real wood, there will be a slight difference in color and
grain pattern from board to board. This is intentional and
part of the manufacturing process, giving AZEK Deck the
most realistic and wood-like appearance possible. This
variation is purely aesthetic and does not or will not affect the
performance of the product.
Color and Temperature
Although AZEK Deck products are cooler to the touch than
many other deck board products in similar colors, all decking
products will get hot in the sun. Additionally, the darker the
decking color, the hotter it will feel.
Roof Tops
In areas with obstructed airflow such as roofs and on-grade
applications, a minimum of 1-1/2” sleeper system supported
by and connected to the substructure over which the deck is
built is required.
Always make sure to visit TimberTech.com to ensure you are viewing the most current
installation instructions, care and cleaning, technical information and more.
Installing TimberTech AZEK
®
Decking