Simplifying the issue, the challenge with fireplace and chimney leaks is the interaction between water and the residual creosote left behind by fires, forming an acidic mixture. This mixture, over time, can erode the silica in the mortar joints.

Once these joints become compromised, moisture—especially considering the abundant Gulf Coast rain—can infiltrate homes through the chimney. Water permeates the chimney, finding its way beneath shingles and potentially leading to the need for roof replacement.

In the absence of proper sealant, heat generated by fires can penetrate areas not designed to handle it, causing wood to dry out and, in some instances, even ignite.

According to a report from the US Consumer Product Safety Commission, approximately 22,000 fires annually are linked to fireplaces, chimneys, and chimney connectors. These fires can result in significant damage and, tragically, in some cases, loss of life.

Furthermore, the absence of chimney caps can create opportunities for birds and animals to enter fireplaces. In certain instances, nests are constructed, and animals become trapped, leading to unpleasant noises and odors stemming from these issues.