Composite decking is known for its durability, low maintenance, and sleek appearance. But as more homeowners consider it for their outdoor living spaces, one question often comes up: Does composite decking get hot in the sun? The short answer is yes, it can—but how hot it gets depends on several factors, and there are ways to minimize heat retention.
In this article, we’ll break down everything you need to know about heat and composite decking, including what causes it to heat up, how it compares to other materials, and smart ways to keep your deck cooler all summer long.
What Is Composite Decking?
Composite decking is a man-made building material made from a mix of wood fibers, plastic, and binding agents. It’s designed to mimic the look of wood while offering increased resistance to moisture, rot, insects, and fading.
Common features of composite decking include:
- Low maintenance (no staining or sealing required)
- Long lifespan (often 25+ years with proper care)
- Uniform appearance with various color and texture options
Because of its plastic content, composite decking behaves differently under heat than natural wood.
Why Does Composite Decking Get Hot?
Like any outdoor surface, composite decking is exposed to direct sunlight, which causes it to absorb and retain heat. The key reasons it can feel hotter than natural wood include:
Material Composition
Plastic polymers used in composite boards tend to retain more heat than natural wood fibers. This can cause the surface temperature to rise more quickly and stay hot for longer.
Color of the Boards
Darker shades absorb more sunlight, just like wearing a black shirt on a sunny day. Composite boards in colors like dark gray, brown, or black will generally feel hotter underfoot compared to lighter tones.
Surface Texture
Smoother surfaces reflect less light and may hold heat longer. Boards with deeper wood grain or matte finishes may help reduce heat absorption slightly.
How Hot Does Composite Decking Really Get?
To give you a better idea of how hot composite decking can get, here’s a general comparison of average surface temperatures in direct sun:
| Material | Surface Temp in Full Sun (°F) |
|---|---|
| Pressure-Treated Wood | 120–135°F |
| Composite Decking (Dark) | 140–160°F |
| Composite Decking (Light) | 125–140°F |
| PVC Decking | 130–160°F |
| Concrete | 130–140°F |
| Grass/Lawn | 85–95°F |
Note: Actual temperatures may vary depending on location, time of day, and weather conditions.
As shown above, composite decking—especially darker varieties—can reach temperatures similar to concrete or PVC.
Does All Composite Decking Get Equally Hot?
Not all composite decking is created equal. The type of composite, the color, and even the brand can influence how hot the material gets. Some brands now offer heat-resistant or “cool” decking lines that are designed to reflect more sunlight and stay cooler underfoot.
Look for decking products labeled with:
- “CoolDeck®” technology
- Low heat absorption
- High reflectivity ratings
These products typically use additives or advanced surface treatments to minimize heat buildup.
Tips to Keep Your Composite Deck Cooler
If you’re worried about hot surfaces on your deck—especially for kids, pets, or bare feet—there are several strategies to help manage the heat.
Choose a Lighter Color
Opting for lighter-colored boards can significantly reduce surface temperature. Shades like sandy beige, light gray, or soft browns reflect more sunlight.
Add Shade Features
Install features that limit direct sun exposure, such as:
- Pergolas or shade sails
- Retractable awnings
- Umbrellas or canopies
Use Outdoor Rugs or Mats
Place outdoor rugs in high-traffic areas to create comfortable, cooler zones for walking or lounging.
Incorporate Cooling Accessories
- Misters or fans can add evaporative cooling on the deck surface.
- Potted plants provide visual shade and help cool the surrounding area through transpiration.
Ventilate the Underside of the Deck
A well-ventilated substructure allows air to flow and helps cool the boards more efficiently, especially for raised decks.
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Composite vs. Wood: Which Gets Hotter?
Composite decking tends to get hotter than natural wood in direct sun, but it cools off at a similar rate. Here’s a quick comparison:
| Feature | Composite Decking | Wood Decking |
|---|---|---|
| Heat Absorption | Higher (due to plastic) | Lower |
| Cooling Time | Moderate | Moderate |
| Surface Texture | Often smoother | More varied (may help airflow) |
| Maintenance Needs | Low | High (staining/sealing) |
| Longevity | 25+ years | 10–15 years (with upkeep) |
If heat is your main concern, wood might stay a bit cooler, but you’ll need to weigh that against its shorter lifespan and higher maintenance requirements.
Is Hot Composite Decking a Safety Concern?
For most homeowners, hot decking is more of a comfort issue than a safety one. However, it’s important to be aware of the following:
- Bare feet may feel discomfort during peak sun hours.
- Pets can experience paw burns on hot surfaces.
- Children may be less cautious and more likely to run barefoot, increasing the risk of discomfort or minor burns.
How to Prevent Discomfort:
- Avoid walking barefoot on the deck between 11 a.m. and 3 p.m.
- Set up shaded play areas for children and pets.
- Hose down the deck to cool it temporarily before use.
Alternatives to Reduce Heat on Your Deck
If you’re still concerned about composite decking heat, here are a few alternatives and enhancements to consider:
Use a Combination of Materials
Some homeowners mix composite decking with other surfaces like pavers, stone, or turf to reduce the amount of heated surface.
Install Underdeck Insulation
For elevated decks, adding insulation below the decking boards can help reduce the amount of heat that radiates from underneath.
Opt for Cooler Decking Materials
PVC and aluminum decking may stay slightly cooler than composite, but they come with tradeoffs in feel and cost. Some newer composite options offer cooling technologies designed to compete directly with these materials.
Final Thoughts: Is Composite Decking Too Hot for Texas Summers?
In warm climates like Texas, composite decking can indeed get hot, but with the right planning and product selection, it’s absolutely manageable. Choosing a lighter color, incorporating shade, and selecting newer cooling technologies can make a big difference in comfort.
If you’re building a new deck or replacing an old one, it’s worth talking to a professional about your climate and how heat-resistant you want your materials to be.
Need Help Choosing the Right Composite Deck?
Your outdoor space deserves more than a one-size-fits-all solution. At Dexkos, we specialize in crafting custom decks that balance comfort, durability, and style—even in the toughest heat. Whether you’re replacing an outdated deck or building a brand-new retreat, our experts will help you choose the best composite materials for your needs—including cooler, more comfortable options for hot Texas summers.
Don’t settle for a deck that burns your feet—create one that fits your life.
Contact Dexkos today to start planning your perfect composite deck.
