A Guide to Causes of Spalling Chimney Bricks
Spalling is a usual issue in chimney brickwork that is usually caused by the porosity of bricks, which permits moisture infiltration. Bricks are sturdy, but they also have a porous property that makes them perfect for building chimneys and allowing smoke to escape. However, cracks and fissures emerge when there is an excessive absorption of moisture, which is followed by freezing and expansion in cold temperatures. The quality of the brickwork, the age of the house, and the surroundings all affect the level of severity of the spalling. Notably, chimneys and walls constructed from recycled bricks display higher susceptibility, as age-related fissures and incompatibility with current mortars contribute to their vulnerability. What are the most common causes of Chimney Brick Spalling? There are several causes of spalling bricks. Some of them are listed as under: Freeze-Thaw Cycles Chimney masonry is significantly threatened by freeze-thaw cycles. When water seeps into ...