Ultimate Dryer Vent Seal
For filling larger vent gaps, foam is the best choice. Webhow to seal a dryer vent pipe: Webwhen the clothes dryer or bath fan operates, the exhaust air pressure pushes the damper to let the exhaust air escape from the vent. You can easily use the exhaust vent for new. A positive seal keeps cold or hot air out as well as unwanted pests.
Medium to large gaps.
