Wind-driven rain penetrated this recently built brick house, causing extensive damage on the interior of the bay. (Tim Carter) Analysis by Tim Carter Dear Tim: As result of Hurricane Irma, I had a ...

Doing that basically stops water filtration through the mortar and behind the brick wall. In the most extreme cases, it can save the wall from collapsing or just bulging out.

Or can I cover them with wallpaper? And how do I repair the ceiling? A: Old lath and plaster walls are prone to cracking. Over time the plaster separates from the lath, creating structural cracks.