Why is an airtightness membrane necessary?


An airtightness membrane, also known as an air barrier, is a material used in building construction to prevent air from leaking in or out of the building envelope. This membrane can be made of a variety of materials, such as plastic, rubber, or a combination of both.

The primary reason for using an airtightness membrane is to improve the energy efficiency of the building. When a building is not airtight, air can leak in or out through small cracks or gaps in the building envelope. This can lead to significant energy loss as the building’s heating or cooling system must work harder to maintain a consistent temperature.

An airtightness membrane can help to prevent this energy loss by creating a barrier that seals the building envelope and prevents air from leaking in or out. This can result in significant energy savings, particularly in buildings with high heating or cooling demands.

In addition to improving energy efficiency, an airtightness membrane can also help to improve indoor air quality by preventing the entry of pollutants, allergens, and other contaminants from the outside environment. It can also help to reduce noise transmission and improve overall building durability.

Overall, an airtightness membrane is an essential component of modern building construction, as it helps to improve energy efficiency, indoor air quality, and building durability.