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Getting Started

Warranty Information

Decking
Can TimberTech AZEK Decking be used near water?

Yes. TimberTech AZEK Decking is the ideal material to use around water because it’s capped polymer decking, making it resistant to rot and decay caused by moisture. It’s comprised of 100% synthetic materials, so it’s not susceptible to moisture related deterioration commonly seen with wood. Its  composition protects it against rotting, warping, and cupping—all water-related issues.

If you want to include a water feature in your deck plan, TimberTech AZEK capped polymer decking is the perfect material to choose.

Is TimberTech Decking ICC code compliant?

Yes, TimberTech Decking has obtained two code research reports ESR-1667 (ICC) and also CCRR-0101. The details of both reports can be reviewed on our Technical Resources Page.

What colors are available for TimberTech Deck?

We offer a whole range of colors and styles, from sleek and modern, to traditional, to rustic. You can even bring indoor flooring looks to the outdoor deck. TimberTech Deck has one of the widest selections of styles and colors to choose from, ranging from light natural shades, to neutrals, to deep rich colors of the tropics. There’s sure to be a look that complements your home’s exterior. Review our decking collection to see all available colors, swatches, and inspiration.



What is TimberTech Deck made of?

TimberTech offers a range of decking material options including high-quality composite decking made of a combination of plastic and wood fibers, and a premium decking made of 100% PVC material. For more information about our decking products, see our TimberTech AZEK, TimberTech PRO, and TimberTech EDGE overview pages. 

Will TimberTech Decking get mold on it?

Yes, TimberTech Decking can get mold on it. Depending on environmental conditions of moisture and temperature, mold and mildew can appear on any outdoor surface. However, mold and mildew on TimberTech decking only occurs on the surface of the boards and does not penetrate through the deck board. Surface mold and mildew on TimberTech Deck can be removed using a cleaner such as Chomp®, Zep 505®, Simple Green®, Krud Kutter®, or a 1-to-4 mixture of bleach and water. Apply cleaner or mixture directly to affected area, use a stiff nylon bristle scrub brush, and scrub the area until the mold or mildew is removed. Rinse the area thoroughly and towel dry. Repeat if needed.

Can I cantilever TimberTech boards on my deck?

Terrain, Tropical, Legacy, TwinFinish, ReliaBoard, and DockSider can be cantilevered a maximum of 1”. ReliaBoard and Terrain can only be cantilevered on the ends.


Can I use a router on TimberTech products?

Routing should only be performed to create a 2” groove above each joist when transitioning from solid boards to grooved on a hidden fastener installation. Full details are available in the Installation and Maintenance Guide.



Can I use glue or caulk with TimberTech?

Do not use caulk to fasten TimberTech boards or to seal between any of our boards. This will impede the drainage of the board and inhibit the natural expansion and contraction of the boards.

Can TimberTech be painted or stained?

We do not recommend painting or staining TimberTech decking. While it is possible to paint our uncapped composite boards, TimberTech cannot guarantee the performance of paint, stain, or other materials, applied to the product. For further information on painting or staining your TimberTech decking, refer to our Care and Cleaning Recommendations.

Does TimberTech decking come in a redwood color?

Yes. You can view all TimberTech color inspirations on the Find Your Color page.

I have a wood deck and want to do some replanking. Can I replace them with TimberTech boards?

Yes, you can replace wood boards with composite, though there are a few factors to take into consideration. First, you will want to make sure your substructure is code-compliant and can hold the extra weight of a TimberTech composite board. Confirm that the thickness of the new TimberTech board is the same as the wooden board it replaces to ensure your deck remains smooth and flat. You can find the thickness of our products on their individual product pages. So, although replacing old wood deck boards with composite can be done, it will likely result in an undesirable patchwork appearance. A better option, if your substructure is code-compliant, would be to re-plank your entire deck with all composite material.

Is TimberTech fire resistant?

Fire regulations and codes continue to evolve in the building industry. TimberTech is committed to manufacturing products that are fully compliant with these requirements, and safe for our customers. All of our TimberTech products are tested to exceed Flame Spread Index requirements.

 

What kind of fastener should I use with TimberTech?

CONCEALoc is our most popular fastener for use with our grooved boards for a fastener-free finish. Cortex or TOPLoc are two other fastener options that can be used for just stairs and perimeters, or the entire deck. Cortex provides a discrete hidden-fastening solution, while TOPLoc provides an engineered, color-matched option. 

Please note that not all fasteners are compatible with all TimberTech decking boards, and using the incorrect fastening system will void your warranty. For example, CONCEALoc Hidden Fasteners or L-Brackets should not be used for stair installation. Always use the fasteners that are specifically recommended to work with your chosen TimberTech product. Refer to our Installation Guides for details.

Does TimberTech decking really resist fading?

Yes, our capped polymer decking and capped composite decking comes with industry-leading fade and stain warranties. And while any exterior product will fade over time to some degree, all of our lines of decking are technologically engineered to be fade and stain resistant. TimberTech EDGE decking products are backed by our 25-Year Fade & Stain Warranty, TimberTech PRO decking products are backed by our 30-Year Fade & Stain Warranty, and, for the ultimate in steadfast color, TimberTech AZEK decking and porch products are backed by our 50-Year Fade & Stain Warranty. However, our uncapped wood composite boards will gradually weather over time, without compromising the structural integrity, as nature takes its course.

Can I power-wash TimberTech Deck?

Yes, when the pressure is set to 1300 psi or lower, and when using a fan tip nozzle. Always keep the nozzle at a reasonable distance from the surface to prevent damage. To be safe, first try the power washer on a scrap piece or inconspicuous area of TimberTech Deck to be sure that you will not damage the surface. In some situations, power washing alone may not provide optimal results. Refer to the TimberTech Installation & Maintenance Guides.

Can I use adhesive or caulk with TimberTech decking?

No, adhesive and caulks are not recommended for use with TimberTech decking. Do not get any PVC glue or similar substance on the surface of a TimberTech deck, as it may discolor and permanently damage the TimberTech deck surface. Additionally, do not use caulk to fasten TimberTech boards or to seal between any of our boards. This will impede the drainage of the board and inhibit the natural expansion and contraction of the boards.

 

Can I use TimberTech AZEK Decking on a rooftop application?

When a TimberTech AZEK deck board is properly and securely attached to framing or sub-structure which is rigid and soundly fastened to building or structure, TimberTech AZEK deck boards can be used in a rooftop application. However, in areas with unobstructed airflow, like roofs and on grade applications, a minimum of 1 1⁄2” sleeper system is required. The deck boards must be attached to a properly secured understructure and leave a minimum of a 1/8” gap between deck boards. DO NOT ATTACH DECK BOARDS TO A FLOATING SUB-STRUCTURE. Consult the TimberTech AZEK Deck Installation Guidelines for recommended fastening. As always, be sure to consult your local building code official(s) for railing requirements on any deck application. To get deck and railing ideas, be sure to check out our Deck Designer.

What is the best way to clean TimberTech Deck?

The preferred way to keep your TimberTech deck clean is to use TimberTech DeckCleaner™ - a formulated, field-tested, and approved product for cleaning TimberTech AZEK® Deck or Porch, TimberTech PRO Deck, TimberTech EDGE Deck, and TimberTech Composite Rail. You can also use soap and water or an all-purpose cleaner such as Chomp® gutter cleaner, Zep 505®, Simple Green®, or Krud Kutter®. For TimberTech AZEK decking, use a stiff, natural fiber brush to clean the boards; for TimberTech Pro and Edge decking, use a medium-to-stiff nylon brush.

It’s best to clean small, manageable areas to prevent the cleaner from drying on the deck or porch surface. All cleaning products should be rinsed off thoroughly. Always read the cleaning product manufacturer's specific information before using any product on your TimberTech deck and follow their instructions. It’s also a good idea to test the cleaner on a scrap piece or inconspicuous area of the deck to make sure it doesn’t harm the surface.

Check out our Care & Cleaning Guide for more instructions on how to clean TimberTech decks.

What is the minimum height from the ground that TimberTech Decking must be installed?

When TimberTech Decking is properly fastened to structurally sound and secure framing, there is no minimum height or ground clearance requirement. Be sure to follow all recommended guidelines for installing TimberTech Decking.

Will a TimberTech deck weather?

Any exterior product will fade over time to some degree – that’s the nature of nature. For the ultimate in steadfast color, our TimberTech AZEK boards are technologically engineered to show minimal fading, backed by a 50-year Fade & Stain Warranty. However, our uncapped wood composite boards will gradually weather, like wood, over time.

Can I build my TimberTech deck directly over an existing surface?

While TimberTech products are great for deck replanking (removing old deck surface boards and installing TimberTech on code-compliant substructure), TimberTech boards CANNOT be installed on top of existing deck boards.

Please see our Installation Help section for proper ventilation requirements.

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.

Can I install my porch pillars or hot tub on top of my TimberTech deck?

Yes. Please remember the underlying joist system, not the TimberTech boards, should be the primary structural supporting mechanism. TimberTech is not to be used as a primary structural load-bearing member.

Can TimberTech decking material be used for a wheelchair/walker ramp?

Yes, TimberTech decking and railing can be utilized to surface a ramp. We recommend consulting with a local contractor and check local building codes for requirements and best practices. It’s also good to use a decking material that is slip-resistant. We also recommend looking into our ADA Handrail that meets the Americans with Disabilities Act (ADA) requirements.



Is there a problem with heat build-up on composite?

Composite decking products, as with most outdoor building products, can retain heat especially after a long day in direct sunlight. At TimberTech, we have engineered certain formulations of our composite decking products to minimize heat build-up, so they’re cooler underfoot. If you're building a deck that will be in direct sunlight, we suggest that you consider decking options that are lighter in color, as they reflect more light, and therefore retain less heat than darker colors.

 

My TimberTech deck was constructed with DrySpace and pitches away from the house. Can I install the Combo Bracket tight to the bottom of the joist?

No. The Combo Bracket is a channel which collects water. When the Combo Bracket or Joist Cover is installed tight to the bottom of the joist, water cannot freely flow away from the Combo Bracket or Joist Covers and may have adverse results in the performance of the structural lumber. For full details regarding proper pitch and installation, please refer to the DrySpace Installation Help guide.

Do I need to place something under grills, chairs, and pots to protect my TimberTech decking?

We recommend using protective plastic, rubber, or felt leg pads on furniture and other items to help protect the surface of your deck. Our products have a high scratch-resistance rating, but these easy extra steps can provide additional protection. For grill mats, a natural fiber mat that does not hold moisture will provide the best protection.

What preservatives are in TimberTech decks' composite core to avoid rotting?

TimberTech composite decking is comprised mainly of high-density polyethylene and wood particles, but we also add proprietary ingredients to our formulation that offer increased protection from rot.

 

Which product is better for a heavily wooded lot?

Any TimberTech product can handle a heavily wooded lot.