https://pediascape.science/wik....i/What_Is_Bi_Folding
https://valetinowiki.racing/wi....ki/A_StepByStep_Guid
Bifold Door Seal Replacement Maintaining the proper seal of bifold doors is vital to maintain climate control, energy efficiency and the quality of the space. As with any door system they are susceptible to issues. Over time, the gasket seal may flatten, become harder or brittle, and reduce its ability to stop drafts. This can be easily fixed by replacing the seal with this kit. Frame Bifold