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Deck
User Manual
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User Manual
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AZEK Deck User Manual

TRIM MOULDING DECK PORCH RAIL PAVERS
AZEK Deck
Install Guide
Installation Guidelines .......................................................................................................... 2
Tools Required ....................................................................................................................... 2
Installation Preparation ........................................................................................................3
Working with AZEK Deck Boards ...................................................................................... 3
CONCEALoc® Hidden Fasteners .......................................................................................6
Stair Code Compliance ....................................................................................................... 11
Trimming an AZEK Deck .................................................................................................... 12
Care and Cleaning ............................................................................................................... 13
Warranty ............................................................................................................................... 14
Notes ...................................................................................................................................... 15
Installation Guidelines
Visit http://azek.com/technical-center/installations/deck.aspx to view AZEK installation videos.
Riser is t for the intended use. Since all installations are unique, it is also the installer’s responsibility to determine specic requirements for each Deck application. AZEK Building Products recommends that all applications be reviewed by a licensed architect, engineer or local building ofcial before installation. If you have any questions or need further assistance, please call AZEK Customer Service at 1-877-ASK-AZEK, (877) 275-2935 or visit our website at www.azek.com.
Tools Required
AZEK Deck/Rim Joist Covers/Riser 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 ne-toothed, carbide-tipped nish trim blade (12”-60 tooth minimum) works well for cutting. For a power miter or compound power miter saw a ne nish 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!
For most current care and cleaning, technical information and more, visit www.azek.com.
AZEK Deck
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 vinyl 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
Static build-up is a natural occurring phenomenon
that can occur with many plastic products including PVC Decking. It could occur with AZEK products under the right environmental conditions.
Cantilevering
For best results, don’t cantilever over 1/2”.
Routing
AZEK Deck/Rim Joist Covers/Riser should not be routed with the exception of the start/stop boards
in the XLM Collection (see page 6 step 8).
Color and Grain Patterns
Color variation is purely aesthetic and does not or will not affect the performance of the product.
Note
AZEK Deck is NOT intended for use as columns, support posts, beams, joist stringers, guard railing or other primary load-bearing members. AZEK must be supported by a code-compliant substructure. While AZEK products are great for deck re-planking (removing old deck surface boards and installing AZEK on code-compliant substructure), AZEK Deck Boards CANNOT be
installed on top of an existing deck.
Failure to install AZEK Deck products in accordance with applicable building codes and this Installation Guide may lead to personal injury, affect deck system performance and void the product warranty.
Page 2
Working with AZEK Deck Boards
Extreme Heat Warning
Be aware of excessive heat on the surface of
AZEK products from external sources, such as but not limited to, re or reection of sunlight from energy-efcient window products. Low-emissivity (Low-E) glass can potentially harm AZEK products. Low-E glass is designed to prevent
passive heat gain within a structure and can cause
unusual heat build-up on exterior surfaces. This extreme elevation of surface temperatures, which exceeds that of normal exposure, can possibly cause AZEK products to melt, sag, warp, discolor, increase expansion/contraction, and accelerate
weathering.
Excessive Construction Debris
It is important during construction, the deck’s surface stay clear from excessive build-up of dirt, sand, and dust from tile, concrete, landscape blocks, or any other masonry
products. If these materials are not removed
immediately, the deck surface will become difcult to clean and can potentially damage the deck’s surface nish.
Do not use AZEK Deck as a work surface.
If a build-up does occur please refer to the Care and Cleaning section in AZEK’s installation guide or website, AZEK.com.
Current or potential AZEK customers that have
concerns about possible damage by Low-E glass
should contact the manufacturer of the product
which contains Low-E glass for a solution to reduce or eliminate the effects of reected sunlight.
Installation Preparation
Follow these guidelines for best deck installation:
• AZEK Deck Boards are one-sided products. Deck Boards are to be installed with the grain side up for
the walking surface. Rim Joist Covers are to be installed grain side out.
• AZEK Rim Joists are one-sided with exception to the XLM Collection.
• Prior to installation, check to make sure all joists are level, structurally sound, and there are no nails or
screws protruding.
• Ensure that all joists are crowned correctly and that all joists are level across the top as AZEK Deck will conform to the surface contour of the substructure.
• Proper joist spacing is required for proper installation. Joist spacing should never exceed 16” on center. For a more rigid feel, 12” may be preferred.
• For best results, installing solid wood blocking between each joist, placed every 4’ - 6’ within the structure, can help reduce movement or twisting of the joists. Limiting joist movement can help reduce excessive gapping and also ensure more uniform nished surface of the AZEK Deck.
1 2 3
16”
16”BASIC INSTALLATION SUBSTRUCTURE
16” on center maximum joists. (12” on center for commercial applications)
PICTURE FRAME INSTALLATION SUBSTRUCTURE
16” on center maximum joists plus
additional support for picture
frame structure (12” on center for commercial applications)
Page 3
16”
12”
DIAGONAL INSTALLATION SUBSTRUCTURE
12” on center maximum joists. More severe angles may require
closer joist spacing.
Working with AZEK Deck Boards
Expansion and Contraction
AZEK Deck/Rim Joist Covers/Riser will have expansion and contraction with changes in temperature, unlike wood whose size will uctuate with moisture changes. The expansion and contraction encountered may result in slight gaps, which might be noticed at the ends of boards or in splice joints. Fastening the deck boards according to the Installation Guidelines will help minimize expansion and contraction.
• Expansion/contraction is most signicant where extreme temperature change may exist.
• Best practice is to cut and fasten the deck boards as soon after cutting as possible.
• Install the boards together tightly at splices or miters.
• Be sure to fasten ends of boards, splices, or abutments to building or structure securely into framing using 2 screws. Position the screws at or within 1/2” of each board end or joint and 3/4” from side of
deck plank.
1/2”
3/4”
• Provide a 1/8” to 1/4” side to side gap between deck boards.
• In areas with obstructed airow 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.
• All deck frames and substructure should be securely attached to ground footings or building
structure. No oating substructures should be used (from preparation section AZEK).
• For best results, stagger splices and miters across deck surface so that all splices and miters do not
break on the same joist or beam.
• To further minimize expansion and contraction, proper ventilation and air ow should be considered.
• Some area building codes may require double joisting when joining boards end to end. Double joists are always required at butt joints when using CONCEALoc. Always check with your local code authority for specic requirements before installation.
Page 4
Working with AZEK Deck Boards
Fasteners
• Due to the durability of AZEK deck products, a high-quality fastener is recommended that meets the following specications:
• Stainless Steel
• Minimum Screw Size: #7
• Face screws to be a minimum length of 2 1/4”
• Be sure that screws are driven to a minimum depth of 1 1/4” into solid wood framing below the bottom of the AZEK Deck Board. This will enhance holding power and uplift resistance.
• Avoid using athead screws. Trim head screws typically provide a better result. As always, you should
try the fastener in a sample board before using on your deck.
• Be sure to install 2 screws per joist on each deck board.
• For salt water coastal applications, we suggest using the above minimum fastener requirements in 316
stainless steel.
• Color-matched stainless steel deck screws are also available. Your AZEK Building Products dealer can
assist with more information on these products.
• AZEK does not recommend any fastener that is not explicitly stated in the AZEK Decking and
Installation Guide. Use of any alternative fastener does not void the AZEK warranty; however, if a decking failure is caused by using one of these alternative fastening methods, any corresponding
claims will be denied.
• Many of these fasteners have either not been tested, or directly affect the performance of AZEK products. As such, AZEK is not comfortable recommending them.
• Hidden Fasteners: for Arbor, Harvest and Terra Collections.
• Tiger Claw® TC-P, Fastenmaster’s Cortex®, HIDfast™, and CAMO™ fasteners are some hidden fastener systems commonly used by contractors installing AZEK Deck. Before using other types of hidden fasteners, check with the manufacturer of the fastener and/or AZEK customer
service to ensure compatibility.
• WARNING: When installing AZEK Deck with hidden fasteners, always use a beater board against side
of deck board. Do not strike deck board directly with hammer or rubber mallet.
*Tiger Claw is a registered trademark of Tiger Claw Incorporated. Cortex is a registered trademark of Handy & Harman Corporation. HIDfast is a
trademark of HIDfast. CAMO is a trademark of National Nail Corporation.
Solid Deck Boards
1”
AZEK: Arbor, Harvest, & Terra
5.50”
XLM Collection Grooved Deck Boards
1”
AZEK: XLM Square Shouldered
5.50”
5.50”
Use AZEK CONCEALoc Hidden Fasteners. Follow the
directions on the CONCEALoc bucket, box or page 6
of this guide.
1”
AZEK: XLM Grooved
Page 5
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