Masonry chimneys are constructed of many different materials, all of which are effected by water. Below is a list of some of the different types of materials that are used in building masonry type chimneys.
1. Brick
2. Mortar
3. Concrete
4. Concrete Block
5. Stone
6. Flue Tile
7. Steel and Cast Iron
When water seeps into chimneys it can erode the mortar joints and then weaken the bricks. During winter, the freeze/thaw cycle really affects the material make up of chimneys because it causes the chimney to expand and contract. This causes cracks, missing mortar and gaps.
In order to prevent water damage to your chimney we have two suggestions:
1. Invest in a chimney cap. Chimney caps are rather inexpensive, and are a great way to prevent water from entering your chimney. In addition, a chimney cap prevents birds, raccoons, and other animals from making their home in your chimney!
2. Waterproof your chimney! The plus of using water repelling agents, is that they allow chimneys to breathe! Meaning moisture that is already in the chimney is able to escape, but no new moisture is able to enter.
Call Superior Chimney Services, Corp. at (877) 244-6349, for more information!
Resource: http://www.mastermasonry.com/chimney.htm
