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.

Vinyl siding by itself does not create a waterproof seal and care must be. Many vinyl siding installers do not realize the importance of the house wrap and its job as the sole water barrier because many people incorrectly. Smooth out the caulk. Vinyl siding installs in pieces so gaps and overlaps are normal.

Often water leaks at a window result from a breakdown in the connection between the window frame and the wall. Inspect the area above the leak including both indoors and out. Caulking can be placed behind the j channel during installation sealing the seam between the j channel and the house wrap also sealing the seam between the j channel and the window itself. In this video this old house general contractor tom silva shows how to prevent water from leaking in behind vinyl siding.

In this case the objects are the perimeter of the new exterior wall and the perimeter of the old open space. To prevent leaks caulk the window where it meets the exterior 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.

One of the somewhat more complex steps in the vinyl siding process however is installing it properly around windows. Caulk is used to seal spaces between two objects. Check to be sure weep holes are open along bottom of window openings.