How To Seal Windows With Vinyl Siding

But if done incorrectly it can lend a sloppy amateurish look.

How to seal windows with vinyl siding.

Check to be sure weep holes are open along bottom of window openings. To prevent leaks caulk the window where it meets the exterior siding. Caulk is used to seal spaces between two objects. In this video this old house general contractor tom silva shows how to prevent water from leaking in behind vinyl siding.

This prevents any air leakage. If the window is surrounded by wood trim use a high grade polyurethane caulk to seal all gaps between the trim and the siding and the trim and the window. In this case the objects are the perimeter of the new exterior wall and the perimeter of the old open space. Inspect the area above the leak including both indoors and out.

Remove the pieces of vinyl siding from around the window area. Often water leaks at a window result from a breakdown in the connection between the window frame and the wall. Vinyl siding by itself does not create a waterproof seal and care must be. Caulking windows to give them a finished look inside and out and seal out leaks and drafts is a fairly common diy task.

Smooth out the caulk. Vinyl siding installs in pieces so gaps and overlaps are normal. Sealing these spots with caulking is not possible because the siding must expand and contract freely to prevent warping.