We have a brick house with a large brick retaining wall--about 12 feet high. The fronts of some of the bricks have dropped off. If you look closely at the wall, any of the darker bricks have had the fronts fall off. I'm sure it has something to do with moisture, but I don't know what I can do about it. The bricks on our chimney are doing the same thing. Is there a spray finish or sealer that can be sprayed on or painted on? Any suggestions are appreciated.
Thanks.
Nancy
