Kits typically include three parts:a T-type or P-type vinyl top seal for the gap between the door and header;similar side seals;and the crucial bottom seal—a compressible flap made of dense rubber or vinyl that automatically conforms to uneven floors as the door opens/closes.These seals offer good elasticity and weather resistance,not becoming brittle or cracking in extreme temperatures.Easy installation usually requires only a screwdriver and scissors.

A standard kit seals a single 16ft W x 7ft H garage door.Top and side seals are typically soft PVC or vinyl;the bottom weatherstrip may be tougher EPDM rubber for longer life.Necessary screws and instructions are included.It reduces door gaps to nearly zero,significantly improving garage airtightness.
Directly applied to residential sectional garage doors.Once installed,it prevents cold winter drafts from entering,reducing heating costs if the garage is attached or contains plumbing,and preventing pipe freezing.In spring/summer,it blocks pollen,dust,and insects from entering,keeping stored items clean.It also stops pests like insects and mice from sneaking in through door gaps.For those using the garage as a workshop or gym,it creates a more comfortable environment.