SunComfortable™ Decking: The Most Heat-Resistant Trex Decking

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*.

*Although Trex decking products with SunComfortable heat-mitigating technology are designed to be cooler than most other composite decking products of a similar color, on a hot sunny day, they will get hot. On such days, care should be taken to avoid extended contact between exposed skin and the deck surface, especially with young children and those with special needs.

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* versus standard composite decking.

With SunComfortable decking, we’ve achieved a major innovation: reducing heat buildup by up to 35 degrees fahrenheit compared to our original boards†.

 

†Based on laboratory testing simulating full summer sun exposure at noon over an extended period. Colors used are Lava Rock (without SunComfortable) and Salt Flat (with SunComfortable). Actual temperature reduction may vary depending on environmental conditions, color and usage.​ Trex decking with SunComfortable technology will still get hot when high temperatures and sun converge. Care should be taken on such days to avoid extended contact between exposed skin and the deck surface.

Color + Climate: What to Know About Deck Temperatures


Like many other outdoor walking surfaces, composite decking can get hot due to sun exposure and hot weather. That’s why it’s important to consider your climate, sun exposure, and deck color 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 options with more heat-resistance across the color spectrum. Love a deeper hue? Explore rich browns and grays in our SunComfortable™ collection. They’re engineered to help reduce surface temperatures compared to similar colors without this technology.
 

*Although Trex decking products with heat-mitigating technology are designed to be cooler than most other composite decking products of a similar color, on a hot sunny day, it will get hot. On hotsuch days, care should be taken to avoid extended contact between exposed skin and the deck surface, especially with young children and those with special needs
 

If heat is a concern, start your color 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 Colors

Discover our curated swatch lineup below, thoughtfully arranged from highest to lowest heat reduction, to help you find the perfect match for your space.

swatch-trn-lineage-salt-flat-borderless.jpg.tif
Salt Flat
Malted Barley
Carmel
Honey Grove
Rainier
Biscayne
Millstone
Tide Pool
Hatteras
Whiskey Barrel
Jasper
Island Mist Lineage

Real Stories, Real Comfort


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Why Choose SunComfortable Composite Decking Over Traditional Wood 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 colors without heat-mitigating technology. Unlike traditional wood, Trex delivers lasting durability, beauty, and performance—without compromise. Wood will 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 colors with style and durability
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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 color.
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; either option gives you 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?

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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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*Although Trex decking products with heat-mitigating technology are designed to be cooler than most other composite decking products of a similar color, on a hot sunny day, it will get hot. On hot days, care should be taken to avoid extended contact between exposed skin and the deck surface, especially with young children and those with special needs

This content was partially or fully generated by AI and has been reviewed by our team to ensure accuracy and relevance.

Copyright © 2025 Trex Company, Inc. All rights reserved.

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