How Do You Keep Composite Decking Cool?

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In full sunlight, the temperature of a composite decking will be about 24 °C higher than the surrounding air temperature. on a hot summer day, the temperature on the deck can exceed 50 °C. It is important to note that no matter what type of decking you have, it will get hot in direct sunlight. However, the temperature will vary depending on the location of the deck, the degree of shade, the time of day, and the type of material the deck is made of. You can learn how to cool down a hot deck in this article. With these tips, you can keep composite decking cool and comfortable all summer long.

Why Do Decks Get So Hot?

The temperature of composite decking boards or wood decks varies with many factors. The darker the color, the more heat it absorbs. For outdoor decks located in hot climates, dark-colored decks can make them difficult to use during the hottest part of the summer.

Light-colored decks, such as light gray, pure white, ivory, or taupe, may be a better choice for people who want a cooler deck. Additionally, if the deck does not have a roof such as a trellis or patio cover, it can get very hot very quickly.

The local weather is also very important. In the summer, outdoor decks are insulated for longer periods of time. As a result, it may be difficult for the deck to stay cool.

How Can I Keep My Composite Decking from Getting Too Hot?

If it gets too hot where you are, composite decking can burn your feet. The temperature on a composite wood decking can be more than 23°C higher than the surrounding air. In other words, when the temperature outside is 26°C, the decking can reach 50°C. Therefore, you should not walk barefoot on the decking.

You can cover the composite decking with a parasol to prevent the deck from getting too hot. If only a small area needs to be shaded, you can use an outdoor parasol. If the deck is large enough, a pergola or living shade can also help. Another cooling method is to plant trees, shrubs, or trellises.

Tips for Cooling Your Deck

There are several ways to cool a hot deck. All of these methods are useful during the hottest part of the summer. Use these effective deck cooling methods so you can relax outdoors in comfort.


Cooling with Water

Use a yard hose to sprinkle cold water on your hot deck. This is the fastest and easiest way to cool down your deck. Keep spraying for a few minutes. The cold water will take away some of the heat.

As the water evaporates and absorbs heat, composite decking will be cooler. After the water dries, spraying again will prevent the deck from continuing to get hot.

Laying Cooler Decking

When purchasing a new deck, consider what material it will be made of. Treated pine is warmer than cedar decks. Because cedar is not as dense as pine, it doesn’t retain heat as well. Therefore, cedar decking is one of the cooler decking options.

Composite decking is easy to maintain. However, unless you use newer, better-quality deck boards, they will be hotter than wood decks. If you want some sort of synthetic material, PVC decking may be a better choice. In most cases, it is cooler than most wood decks. PVC decking also lasts a long time.


Carpet the Outdoors

When the sun is at its hottest, you can revamp your outdoor area. Outdoor carpeting is a great way to keep your feet warm and add style. Rugs can make a deck stand out, define the space, and tie all the other decor together.

The best material for outdoor cushions is polypropylene. This is because it does not absorb water and is versatile. Polypropylene protects composite decking from sunlight and can be used on a variety of surfaces.

Latex, vinyl, or rubber are not suitable for outdoor carpeting. Latex, vinyl, or rubber will allow water to seep in, leading to mold growth, and will stain your deck in ways that are difficult to remove.

Adding Parasols, Awnings and Sails

Many people add furniture to their decks to cool the composite decking. Examples include setting up sails, awnings, and umbrellas. A long-term solution is a windsail. A small blanket can cover the entire sail deck, blocking the sun and cooling it down at the same time.

This product does cover a large area, but the installation method takes longer. Sails are not as sturdy as covers. Attaching the cover to the walls of your house can make your living room bigger.

Umbrellas are lightweight, portable, and can do a lot. You can take them out when you don’t need them. Patio umbrellas are a good choice for people who live in places with changeable weather. But it is limited in what it can cover. You should look more into different deck shade ideas to find the best one for you.


Use Deck Cooling Misters

Outdoor misters can lower your body temperature and cool the air around you. Because of this, misters can make the temperature more comfortable in different places. Statistics show that the average radiant temperature is 7.6 °C lower in a misted area.

When used in conjunction with shading devices such as awnings or canopies, misting systems can make the outdoor environment more comfortable. The principle of operation is as follows. Evaporation is one way in which the misting device cools the air. The nozzles on the misting unit spray cold water droplets into the air. These droplets turn into gas or water vapor, which cools the hot deck.

If your deck has been in use for a long time, you should know how to protect it. It is very important to take care of your wood deck. This is because if it is not properly protected, wood decking will rot faster. Of course, composite decking doesn’t need to worry about this problem because it has good water and mold resistance.

Deck Cover or Pergola

Many people choose to install deck covers. This is because they increase the value of the home, are aesthetically pleasing, and also keep it cool in the summer. These deck covers also adequately protect the outdoor living space, so you’ll want to keep them even after you move.

The most popular outdoor additions are ceiling fans. Ceiling fans can make a portion of an outdoor or outdoor area cooler. By placing a ceiling fan on your deck, you can send cool air down and around.

Pergolas are less expensive and you can install them in smaller areas, adding supports for the plants growing on them. If you are concerned about the pool deck, you can build a canopy over the poolside lounge.


Add Tall Plants

To cool down a hot deck, you simply need to plant trees and plants nearby. You can also make your own decorations using plants. Placing plants around can provide shade and cooling. Growing plants around your deck makes good use of the extra space.

Container plants are easy to care for and are versatile. They add depth and shade. Of course, the larger the plant, the greater the shade. Spruce and pine trees are great for shade. However, the worst thing about planting trees is that they take a long time to grow.

Adding Light Colors to Your Deck

In most cases, a black, dark blue, or mahogany-colored deck is hotter than a slate-colored deck. If you live in an area that gets too hot in the summer, choose a lighter deck color in order to keep the deck cooler.

Decks can be very light in color, such as light gray, all-white, slate gray, beige, and so on. White color will change the appearance of the room and make it look bigger.


Stay Away from Hot Things

They might also want to be moved as far away as possible if they have a grill or a kitchen outside. These things make the temperature rise. If you can’t do that, try cooking outside less often. Besides that, you might also want to stay out of the sun. You might have to move your furniture around so that the sun doesn’t hit you in order to do this.

Cool off Your Feet in the Pool

While pools might not always keep the surface of your deck from getting too hot, they can be a nice feature and give you a way to cool off if the heat gets too much. It’s also a great reason to have people over, and the kids can play and splash around.



In conclusion, various strategies can be used to keep a composite decking table cool. These strategies help reduce heat absorption and retention. By choosing lighter-colored decking materials, providing adequate ventilation for the deck, and installing shading elements (such as pergolas or umbrellas). Homeowners can reduce the surface temperature of composite decking.

In addition, installing composite decking with greater heat resistance, such as capped composite decking, can help minimize heat buildup. By taking these steps, homeowners can create a comfortable outdoor environment on their composite decking that is enjoyable to use even on hot summer days.

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