Do You Caulk Under An Exterior Window Frame?

Answer:

Tip 5: Always Caulk the Interior and Exterior Yes, it’s best to apply caulk to both the interior and exterior when installing new windows. This will seal any unwanted air leaks. Using a caulk gun will ensure you fill any gaps and get a clean line.

Answer:

As the caulk dries, it shrinks slightly and seals the area between the window frame and the house. Apply caulk along the bottom edge of the window. Allow the caulk to dry before washing or cleaning your exterior window panes.


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Frequently Asked Questions

How do you fill gaps under a window frame?

If you have very large gaps around a window, you can fill them using expanding foam. Expanding foam is perfect for filling large gaps around windows as it allows for a degree of movement without cracking or breaking. It can also provide a good moisture barrier between the brickwork and the window frame.

How do you caulk cracks in window frames?

Wipe the surface with a damp rag and allow the surface to dry completely before continuing. Caulking is best used on cracks that measure less than 1/2 inch. For larger gaps, first fill these with insulation, then follow up with caulking around the window frames.

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