Ask Danny Videos
Sealing Weep Holes in Brick Walls
By: Danny Lipford
What should I use to fill the small holes in my brick walls? -Steven
The small vertical slots near the bottom of brick walls are known as weep holes and are used to allow any moisture from condensation to drain out of the wall as well as air to circulate. While you should never fill weep holes with solid material—such as caulk, wood, or mortar—you can put strips of fiberglass screen wire or scouring pad in the weep holes to keep insects out.
Watch this video to find out more.
Steven Asks: What should I use to fill the small holes in my brick walls?
Danny Lipford: The holes you’re talking about, that you’ll find around the perimeter of a brick home, are called weep holes. Now, these are very important and can’t be sealed up, because bricks always hold moisture and store moisture. So you need some place for that moisture to escape and air to circulate.
Now, if you’re concerned that insects may use that to get inside your home, well, here’s something you can do there. You can find some fiberglass screens—readily available, very inexpensive. You can just cut small pieces of it like this, and then just force it into the crack to keep the insects out. Another way is to use a scouring pad like this. Again, cut small sections of it, and insert it right in the crack. But you don’t want to use anything that has metal in it, because sooner or later it’ll rust.