New backdraught shutter improves the house climate

Better air distribution in the house

Using a backdraught shutter increases the airtightness of the house and contributes to a stable under pressure. The chimney installed in the ridge of the house is a sensitive place for air leakage. Air leakages air cannot be controlled and should be prevented as much as possible. The backdraught shutter at the top of the chimney closes off the chimney and prevents air from flowing back into it when the fan is not active. This makes the backdraught shutter an important component of the ventilation system that contributes to a greater airtightness of the house. A condition for achieving sufficient under pressure in the house is the ability to control air distribution in the house properly.