There are numerous reasons why a brick type masonry chimney would weaken, deteriorate, then fail and crumble over the years. Routinely maintaining and inspecting a brick chimney would minimize the risks of weather damage causing irreparable damage to your chimney. The application of clear silicone waterproof coating prevents water molecules from entering the pours of the bricks and masonry, which freeze overnight during the cold winter months and slowly pry open and loosen the mortar joints, which then allows more rain water to enter and causes a escalating deterioration effect. Brick chimney must then either be rebuilt or the masonry be repaired or re grouted.
