2023-10-20 19:00:02
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Thermal insulation of a home is a major concern for many homeowners. Among the various materials available to achieve this, the vapor barrier is a key player. Not familiar with this term? In the following, we offer you a detailed overview of this insulating film which promises optimal insulation for your home.
What is a vapor barrier?
It is a flexible membrane specially designed to prevent water penetration and the formation of condensation inside the walls of your home. This condensation usually occurs when warm, humid air from inside comes into contact with cold air from outside.
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To ensure its effectiveness, the vapor barrier must be installed on the heated side of the walls overlooking the exterior.
When to choose a vapor barrier?
Installing a vapor barrier is not always required. However, in certain situations, this insulating film is essential. For example, in mountainous areas, residents often face condensation problems due to low outdoor temperatures. In such contexts, the installation of a vapor barrier becomes essential.
Condensation can cause mold growth on walls, accelerating their deterioration. In addition, mold can degrade indoor air quality, thus presenting risk for the health.
If you regularly notice condensation on your windows or if you use materials particularly sensitive to humiditythe vapor barrier might be very useful to you.
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How to install this insulating film?
It’s better to entrust the installation of the vapor barrier to a professional to ensure impeccable sealing. An imperfect installation might have the opposite effect, leading to an accumulation of water vapor in leaky areas, conducive to the growth of mold and fungus.
The vapor barrier must be placed on the heated side of the wall and extend over its entire surface. The membrane must be continuous, thus avoiding joints. It can be secured with staples or nails, ensuring that there are no gaps.
How much does a vapor barrier membrane cost?
Prices fluctuate depending on the thickness and quality of the product. Count between €1 and €3 per m². The majority of vapor barriers are sold in rolls of 25 meters long for 15 meters wide. do not forget to also consider labor costwhich amounts on average to €6 per m².
With this information in hand, you are now better prepared to cope with climatic hazardsespecially during the cold winter months.
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