When a building has good air tightness, it stops the outside cold from penetrating the building fabric, or depending on the direction of the pressure gradient, keeps the warm air in. Local building regulations each have their own requirements for the air tightness of buildings. In recent years, regulations in all countries have become stricter. In many cases, air tightness criteria is based on the passive house standard (<0.6 exchange / hour). To test the air tightness of buildings, the pressure test method is often used.
We have an ideal air tightening solution for different kind of buildings. The below section contains the most common air tightening products in use.