https://longshots.wiki/wiki/A_....Brief_History_Of_Bif
Bifold Door Seal Replacement Due to their compact design and easy access, bifold doors are popular for hangars, garages and other industrial spaces. Maintaining them properly sealed is crucial to ensure energy efficiency, cleanliness and a comfortable indoor space. Over time gaskets flatten and shrink, or become damaged and this leads to water ingress, draughts and loss of heat. This is a quick and simple fix. Seals on Top Over time the seals made of rubber on a bifold will be damaged or