https://mullen-buckley.technet....bloggers.de/is-bifol
https://squareblogs.net/lookru....th3/the-reasons-bi-f
Bifold Door Seal Replacement Maintaining the proper seal of bifold doors is vital to maintain energy efficiency, climate control and the overall quality of the area. However, just like any other door, they are affected from time to time. Over time, the rubber gasket seal can become flat or become brittle, harder and less able to stop drafts. This can be easily repaired with this seal