When To Use Exterior Caulking?


It is designed to seal seams in windows, doors, siding, gutters, brick, concrete, and roofing tiles to ensure that your home remains waterproof. Exterior caulks are easy to use and are a great, inexpensive option to fix a variety of cracks and breaks around the exterior of your home.


Exterior Caulks are different than the ones used inside the home, they are used mostly outside and are stronger. You can use exterior caulk in not only on gaps and holes in cement in your floors and walls, but also on pipes, window sills, doors, wooden floors, exterior tiles, and decorative ceiling installations.

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Frequently Asked Questions

Is there a difference between indoor and outdoor caulk?

One big difference between interior and exterior caulking is that indoor caulking can usually be painted, while outdoor caulking cannot. ... The most wear and tear in exterior caulking is usually seen on the south side of the house — the side most exposed to sunlight, which can speed up deterioration of the caulking.

When should you apply caulk?

Where Should You Use Caulk? Any baseboards, trim, or moldings that are going to be painted will look better if you use caulk at their joints or where they meet the walls. The caulk will give a smoother, more uniform finish to all painted trim, and will give your paint job a much more professional appearance.

Where can I use exterior caulk?

Siding caulk can be used on several different areas of your exterior siding to help prevent water damage and moisture buildup. Some of the most commonly caulked areas of siding include both corners and crevices, as well as some butt-joints and window and door trim boards.

Can you use painter's caulk on wood trim?

Most importantly, it can be painted. This is why it's sometimes referred to as "painter's caulk." Use this caulk for filling small gaps and blemishes in wood trim and for sealing joints between wood parts that will be painted.

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