Have you installed a privacy screen to enjoy some peace on your terrace? It’s a good idea, except that some models produce the exact opposite effect in the height of summer. Instead of creating a pleasant space, they block all air circulation and trap heat like a lid on a pressure cooker. The result: 45°C on the ground, scorching furniture, and no one wants to set foot there.
Here are the privacy screens to avoid during a heatwave, and the alternatives that actually work.
Why some privacy screens amplify heat
A completely opaque privacy screen with no ventilation creates a hermetic wall. The sun beats down on your terrace, heat accumulates, and even the slightest breeze is stopped dead. It is the same phenomenon as a greenhouse. The smaller and more enclosed your space is—such as a balcony or a terrace between two walls—the more brutal the effect.
The problem does not come from the privacy screen itself, but from its opacity level and material. For example, a solid dark PVC panel absorbs solar heat and then releases it through radiation, while simultaneously preventing air from circulating. You end up with two problems instead of solving one.
Materials that turn your terrace into a sauna
Not all privacy screens are equal when facing the heat. The main culprits are:
- Dark PVC reed screening. These absorb a huge amount of heat and become burning to the touch. Zero ventilation, zero comfort.
- 100% opaque tarpaulins. No one can see you, but you are literally cooking behind them. The air stagnates, and the temperature climbs.
- Solid composite panels installed without spacing. With no air passage between the slats, the heat remains trapped.
Conversely, a light-colored and openwork material reflects part of the solar radiation while allowing micro-currents of air to pass through. The difference in perceived temperature can reach 5 to 8°C.
The classic mistake: focusing only on privacy
We often choose a privacy screen with only one criterion in mind: not being seen. This is understandable. However, if you live in the south of France or your terrace is south-facing, this choice can ruin your summer comfort.
The right approach is to find a compromise between opacity and ventilation. A privacy screen with an opacity rate of around 70 to 85% offers sufficient privacy without creating an airtight wall. Air passes through, heat escapes, and you remain hidden from view.
Which privacy screens to choose to survive the summer
The adjustable aluminum slats are probably the best option if your budget allows. They work like shutters: you adjust the angle according to the time of day, letting air through when it’s hot and closing them when the neighbor is on their balcony.
The openwork fabric privacy screens (woven mesh type) also offer a good compromise. They filter views without blocking air circulation. If you prefer a more natural look, wicker or bamboo screening stores less heat than PVC, provided you choose light shades.
Color: a detail that changes everything
We don’t think about it enough, but the color of your privacy screen plays a major role. An anthracite or black screen absorbs up to 90% of solar radiation. A white, beige, or light gray model reflects a large part of it. On a 10 m2 terrace in full sun, the choice of color can lower the temperature by several degrees.
If you already have a dark privacy screen and do not wish to replace it, add a shade sail above the terrace. This won’t solve the ventilation problem, but it will limit the oven effect by cutting off direct radiation.
Positioning your privacy screen correctly to promote ventilation
Before buying, observe your terrace: where does the prevailing wind come from? If you place your privacy screen right in front of it, you cut off the only source of natural coolness available to you. Opt for an openwork model on that side, and keep high opacity only for the side exposed to onlookers.
Another tip: do not stick your privacy screen directly against the railing or the wall. Leave a few centimeters of space at the bottom to create an air intake. Hot air naturally rises; if fresh air can enter from the bottom, you create passive circulation that makes all the difference.
Expert in fencing, gates, and outdoor landscaping since 2019.
Holds a Master’s degree in Digital Marketing – SEO, UX/UI.
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