Do Plantation Shutters Block Heat

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Plantation Shutters Are Ideal Window Coverings To Improve the Thermal Conditions of Your Home All Year Round

Keeping your home air-conditioned during scorching summers is an absolute must. Homeowners may rely on their AC units, but continuously running the AC is costly. Fortunately, there are other efficient and frugal ways of insulating your home. One way is to install plantation shutters.

We all know that plantation shutters are an attractive addition to any home. They provide many benefits like protection from the sun, noise reduction, and privacy. But do plantation shutters block heat too?

Wooden shutters can reduce heat in your home by 30%, while aluminum shutters reduce heat by approximately 27.5%.

How Plantation Shutters Keep Out Heat


Interior and exterior shutters are efficient in conserving energy in your home. Their heat-blocking abilities aren’t only valuable for the summer. During chilly winters, they will keep your family warm and cozy. Here’s how these shutters improve the heating and cooling of your home:

Window Shutters Create an Airflow Barrier

Shutters are installed in a unique way that hinders hot air from entering your home. There’s no gap around the window edges when you shut the shutter, and the louvre is in a closed position. This barrier creates airflow from behind the shutter, trapping heat outside or inside the building.

Plantation Shutters Provide Insulation

Shutters come in different materials like timber and PVC. The thermal properties of these materials provide an insulative barrier between your home’s interior and exterior.

An excellent way of finding the insulation capabilities of window shutters is by looking at the R-value. This value measures the ability of a material to resist heat. A higher R-value means the material can effectively keep a room cool.
Best shutters have an R-value that ranges from 2.77 to 3.17. These high values mean shutters offer greater window insulation. Wooden shutters and polyvinyl shutters provide better insulation compared to shutters made from other materials.

Shutters Are Light Regulators

You can regulate the amount of light and heat entering your home using window coverings. Shutters come with louvers that allow you to control light entry into your home. Close the louvers if you want to block sunlight. And since radiant heat accompanies the sun’s rays, you’ll also be blocking out heat.

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Ideal Shutter Design & Materials

Shutters are crafted from thick materials, making them ideal heat insulators. Since thick materials are poor heat conductors, less heat will sneak into your house through windows. 100% solid material shutters offer more heat resistance than composite or hollow shutters.

Full height shutters also block heat better compared to café style shutters. Full solid raised shutters will cover the entire window and provide a comfortable indoor temperature when you close the louvers.

The material used to create the plantation shutters is also important. Plantation shutters are made from a variety of materials to block the heat out from homes, including:

Western Red Cedar Shutters

The Western Red Cedar timber plantation shutters are a popular choice, as wood is a natural heat insulator. Not only will these shutters maintain ambient temperatures in your home, they can withstand the hot, humid Australian climate.

Aluminium Shutters

Aluminium shutters have many benefits. They are easy to clean, durable, and, most importantly, energy-efficient. They come with hinged louvers that help you regulate the entry of light and heat to your home.

PVC Shutters

PVC, also known as thermo-poly shutters, are low-cost coverings that come from plastics. Plastics are poor heat conductors, making them the ideal material to block heat from your home.

Sliding Plantation Shutters

Effect of Plantation Shutter Colour


The colour of your plantation shutters has a significant impact on its heat-blocking ability. White window shutters reflect light and radiant heat, making them an excellent choice for blocking heat. On hot days, white shutters will help cool your home.

On the other hand, black shutters absorb light and heat. These shutters will block light, but they will hold on to heat. This heat might raise the overall temperature of your home. It isn’t a good idea to install black shutters during sweltering summers. However, if you want to block light rays from your home, black window shutters are a great option.

So, Do Plantation Shutters Block Heat?


Yes, shutters do keep homes cool during summers. With that said, shutters have other benefits too, such as adding value to your home and providing privacy.

Outdoor Plantation Shutters Newcastle

Classic Blinds & Shutters manufactures and sells Australian made plantation shutters in Newcastle NSW. For more information about plantation shutters and the benefits for your home, or to get a free quote, contact Classic Blinds & Shutters on 02 4940 8335 or email [email protected]

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