Spalling brick occurs when moisture seeps into a brick and then goes through the freeze/thaw cycle. Over time this water damage causes the spalling bricks to crumble, flake, and even pop completely out of the chimney.
How do you stop brick spalling?
- Ensure water is properly draining from around your foundation.
- Install a snow/rain cap on your chimney.
- Avoid pressure washing your brick, which can weaken it.
- Check your house for leaks. …
- Inspect your brick and your chimney regularly to look for cracks. …
- Keep crawling vines in check.
Can you seal spalling brick?
Sealing your bricks is the best way to stabilize crumbling bricks. It can also be used to prevent spalling, so you don’t have to wait until your bricks are crumbling to do it. While there are many sealants available, you’ll want to be sure to choose a breathable one that does leave a protective film.
