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When it comes to how to paint a brick chimney, consider that standard paint can seal in moisture and cause serious chimney problems. Instead, use a vapor-permeable sealant. You’ll first scrub and sand the chimney; then, you can patch any gaps with caulk and apply the sealant. We recommend hiring a pro for this job since it entails working on the roof, which comes with a lot of necessary safety precautions.

Brick stain doesn’t peel or chip and is much more durable than painting. That’s because the staining is absorbed into the brick instead of lingering on the surface as paint does. The color retains even under extreme weather conditions. Therefore, brick stain will save you a lot of time and cost on maintenance in the long run.

Spalling brick is not uncommon, but it does indicate a serious issue. It can be caused by water damage, an intense freeze-thaw cycle, or something else. Painted bricks can be susceptible to spalling, as the paint doesn’t allow the porous material of the brick to breathe, which can trap moisture. Spalling should always be addressed immediately before more serious structural damage occurs.

Common causes include weather exposure, moisture, and settling. Regular maintenance prevents significant damage.