Waterproofing for Chimneys

Waterproofing a masonry chimney will help protect the chimney from the elements. It is possible to measure the amount of water passing through a chimney during a rainstorm. That water, of course, falls down the chimney and may end up on your floor. Waterproofing the chimney is a first line of defense to protect from such damage. In addition, a waterproofed chimney will not deteriorate as one which has not been waterproofed.

However, since one of the byproducts of combustion is water, you want to waterproof your chimney with a product which will allow moisture to exit from the inside to the outside. As you can imagine, you need to know which product will perform properly for the circumstance that you have. A professional chimney sweep should be able to offer you guidance in this area as well as to show you how the product will work on your chimney. So, before you invest in having your chimney waterproofed, ask your sweep to demonstrate its effect on your chimney.