Why It’s Smart to Waterproof Your Chimney

One of the things you’ll hear chimney professionals say over and over is, “Water and chimneys don’t mix.” This is true everywhere, but especially in Florida, where we have more than our share of rain. Doodlebuggers Fireplace, Grill & Outdoor Store of Pensacola, FL, and Destin, FL, would like to share some information on the importance of chimney waterproofing and how it can literally save a chimney.

How waterproofing works

To properly waterproof a chimney, a special sealant is applied to all exposed areas of the masonry. The concrete chimney crown at the top of the chimney can also be waterproofed. A quality chimney sealant creates a strong block to keep water from moving into small cracks and gaps in the masonry. The seal is “vapor-permeable,” meaning that while it doesn’t let water in, it does allow for the escape of the natural moisture that builds up on the surface of the masonry. Chimney waterproofing is one of the most effective and inexpensive ways to add years of life to your chimney.

How chimneys are damaged

Bricks, mortar, and chimney crowns are strong and will hold up for many years, but they won’t last forever. They can be affected by:

• Old age
• Inferior materials used in their construction
• Poor workmanship in building them
• Lightning strikes
• Pounding hail
• Issues with the chimney footing
• House-settling

and other events.

The result is often cracks appearing within the masonry and crowns. When this happens, water has a clear path to move in.

What water can do to a chimney

Once inside, water will begin a cycle of deterioration. This can literally eat a hole in structural materials. Compromised masonry can cause big problems, including:

• Major water leaks throughout the chimney system
• Damage to the chimney liner, causing the escape of heat, flames, and carbon monoxide
• Outbreaks of harmful mold in unseen areas within the chimney
• Damage to the fireplace damper and firebox
• Rotting in the walls, ceiling, and roof
• A chimney that leans to one side or eventually collapses

How long does chimney waterproofing last?

A variety of factors determine how long the application will last, but five to ten years is common. Your chimney technician will assess your chimney and talk with you about the specific waterproofing product he or she uses. You’ll then have a better idea of how long to expect secure protection for your chimney.

As with all aspects of chimney care, waterproofing isn’t a one-time deal. It should be reapplied at intervals to ensure that your chimney structure and chimney crown remain protected against the ravages of incoming water.

The help your chimney needs

Doodlebuggers specializes in keeping chimneys safe, efficient, and beautiful. We provide a full menu of chimney repairs, waterproofing maintenance, inspections, and cleaning services. Whatever is wrong with your chimney, we know how to fix it.

If it’s time to have your chimney waterproofed, repaired, or inspected, our trained technicians are ready to help. Reach a chimney expert today at (850) 477-1151 in Pensacola, FL, or at (850) 243-0154 in the Destin, FL, area. You can also get in touch with our handy contact form.