Heat-Mitigating Decking: The Future of Comfortable Outdoor Living

Decking That Raises the Bar—Not the Temperature

When you think of perfect outdoor spaces, whether it’s for relaxing, entertaining, or enjoying the beauty of nature, comfort is key.

Step onto a deck that redefines outdoor living with Trex SunComfortable™ technology—more heat resistant than standard composite decking*.

What is SunComfortable™ Technology?

Trex SunComfortable™ Technology redefines what performance looks like in the heat. Our heat-mitigating decking is engineered to reflect solar energy and reduce heat absorption, keeping deck surfaces cooler.

With SunComfortable, we’ve achieved a major innovation—reducing heat buildup by up to 20 degrees Celsius compared to our original boards**.

 

**Based on laboratory testing simulating full summer sun exposure at noon over an extended period. Actual temperature reduction may vary depending on environmental conditions, colour and usage.

Color + Climate: What to Know About Deck Temperatures


Like many other outdoor walking surfaces, composite decking can get hot due to sun exposure or weather. That’s why it’s important to consider your climate, sun exposure, and deck colour when choosing your boards.

If your deck sits in direct sun all day, especially in hotter climates, you’ll notice more surface heat than someone in a cooler region or with partial shade. That’s true for all decking, regardless of material.

Trex gives you heat-mitigating options across the colour spectrum. Love a deeper hue? Explore rich browns and greys in our SunComfortable™ collection. They’re engineered to help reduce surface temperatures compared to similar colours without this technology.

 

If heat is a concern, start your colour journey with lighter options like Salt Flat or Carmel. These shades combine reflective qualities with heat-mitigating tech to help reduce surface temperatures in the full sun.

Explore Our SunComfortable Decking Colours

Explore our curated swatch lineup below, sorted from highest to lowest heat reduction, to find the right fit for your space.

Real Stories, Real Comfort


Hear firsthand how Trex makes every build better - straight from the experts who use it every day.

Why Choose SunComfortable Composite Decking Over Traditional Timber Decking?


SunComfortable decking is designed with advanced heat-mitigating technology to help keep your deck cooler under the sun compared to other composite decking in similar colours without heat-mitigating technology. Unlike traditional timber, Trex delivers lasting durability, beauty, and performance—without compromise. Timber may weather over time, but Trex is built to stand the test of time.
 

  • Low-Maintenance Durability – Resists fading, scratches, and stains
  • Splinter-Free Comfort – No cracking, warping, or splintering
  • Available in Stunning Finishes  A wide range of colours with style and durability

Where SunComfortable™ Decking Works Best

Not all outdoor spaces experience the same conditions. Your deck’s exposure to sun and heat should play a major role in your material and color selection.

Here’s what we recommend, based on climate and how much sun your deck gets throughout the day:

A beautiful backyard deck in the color Carmel exposed to bright sun. The deck is decorated with desert plants and an attractive outdoor dining table set.
1Hot Climates + Full Sun Exposure

If you live in a warmer region or have a deck that’s exposed to direct sunlight for most of the day, surface temperature becomes a key consideration. 
 

  • Choose lighter colors that reflect more sunlight and retain less heat.
  • Recommended shades: Salt Flat, Carmel, and other light neutrals in the SunComfortable™ lineup.
A small pool with a Trex deck as a pool deck in a light colour.
2Moderate Climates + Partial Shade

If your deck gets some daily sun but benefits from tree cover, awnings, or architectural shade during peak hours, heat may be less of a concern—but still worth considering in warmer months.
 

  • You have flexibility here. Use SunComfortable™ for added performance in sunny spots, or go with traditional Trex decking for style and durability.
  • Choose from a wider range of tones—from soft neutrals to deeper hues—based on your personal design goals.
A garden deck made in Trex Transcend Tiki Torch. The garden space is completely covered in the shade of tall trees and the home, so it does not recieve much direct light.
3Cooler Climates + Full Shade

Building in a fully shaded area or a region with cooler temps year-round? You’re in the clear to pick any Trex board your design heart desires. 
 

  • You’re free to go dark or light. The choice is yours. 
  • Focus purely on aesthetic, contrast, and coordination with your home or landscape.

Performance-Engineered™ Decking for a Greener Future

At Trex, we believe innovation and sustainability go hand in hand. SunComfortable shows our unwavering commitment to eco-conscious design, crafted with up to 95% recycled materials to champion green construction. Experience comfort and sophisticated style while choosing an option that puts the environment first.

The Future of Outdoor Living Starts Here.

Experience outdoor innovation with Trex Suncomfortable™ decking—designed to keep your space inviting and enjoyable.

Comfort Is Just a Click Away

 

Don’t wait for cooler days—create them today. Explore the next level of outdoor living with Trex SunComfortable™. Stay cooler, stylish, and sustainable with a decking solution built for the future.

 

Shop Trex SunComfortable Decking Samples

Frequently Asked Questions

Have more questions about Trex?

01
Is composite decking hot in the sun?

Just like many other outdoor walking surfaces, composite decking can get hot due to sun exposure or weather. On these hot days - care needs to be taken to make sure skin does not have extended contact with the surface of the deck. For hotter climates, we recommend choosing a lighter color or one of our Lineage deck boards. The Transcend Lineage line of decking is engineered with heat-mitigating technology to give you our coolest decking yet.* It offers a noticeably cooler board than any of our other decking collections.

02
Is Trex decking environmentally friendly?

Yes. Trex composite decking is sustainably made in the USA from up to 95% recycled plastic film and reclaimed wood.

03
What is the lifetime value of Trex?

With pressure-treated wood decks, maintenance costs add up over time. Although Trex costs more initially, you'll never have to sand, stain or paint your Trex deck. Over the life of your deck, those reduced maintenance costs add up to a greater value than wood—not to mention the value of the added time spent enjoying your deck rather than working on it. If you would like to see the difference in maintenance costs for your deck of wood vs composite, visit our Decking Comparison page.

04
Why is Trex® decking better than wood?

Trex products offer superior durability and performance that you can't get from wood. Trex decking resists termites, won't rot, warp, or splinter-and never needs staining or painting. What's more, Trex decking is made from 95% recycled materials: That's an eco-friendly decking choice you can feel great about. To learn more please review our Trex vs. Wood page.

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