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Chimney Waterproofing Options Have Come A Long Way

The construction of a chimney includes many measures meant to prevent water from entering the system and damaging the masonry. But years back, adding a protective waterproofing layer to the masonry itself wasn’t an option, because the masonry’s function is more complex than meets the eye. Bricks and mortar are porous, and they need to be to do their job — gases and small particles need to move through the masonry and be expelled from the chimney. Just applying paint to the outside of a chimney might keep water from getting in, but it would also keep those gases and particles from getting out.

Today, we can add a high-quality waterproofing sealant that’s 100-percent vapor-permeable, solving both problems. This sealant keeps water from working its way into the masonry but still allows the brick and mortar to “breathe” and usher those harmful gases and small particles out.

We can also add waterproofing sealant to your chimney’s crown, allowing it to more effectively stand up to the weather, and do its job of directing rain and snow away from the flue.

If you have a chimney that’s more than 15 years old, we highly recommend adding a waterproofing sealant — it can extend the life of your chimney dramatically and make it safer and more efficient in the process.

Why It’s Important To Protect Your Chimney Masonry

We’ve talked about the benefits of chimney masonry’s porous qualities, but there are, of course, problems that come along, too. As your chimney masonry sits open to the elements, moisture can seep into the brick and mortar. The moisture itself can lead to deterioration, but the way water expands and contracts as it freezes and melts is even more problematic. This process can create cracks, gaps, spalling, and overall degradation. When it comes to the integrity of your chimney, water can be a slow and steady destruction crew and that’s why it makes sense to be vigilant in fighting against it.

As a preventative measure, waterproofing sealant can be hugely valuable — it’s an affordable investment into the life of your chimney and it can help you avoid costly restoration and rebuilding.

Be Proactive In Fighting Against Water

We recommend using a waterproofing sealant to protect your chimney from water’s damaging effects – but that’s just one of the preventative measures we encourage homeowners to look into.

Getting your annual chimney inspection is step No. 1 in keeping ahead of water damage. A-1 Chimney Specialist’s CSIA-certified technicians can thoroughly inspect your chimney to find any water damage or current or impending sources of leaks and recommend the right repairs to make your chimney whole again.

We might also recommend:

  • We see many homes that are missing chimney caps. Those may seem like a small piece of a big system, but chimney caps do valuable work — they help keep rain, snow and sleet (not to mention animals) from getting into your flue. Installing a chimney cap or replacing a damaged one is a worthwhile preventative measure.
  • Do you see loose caulk around your chimney flashing? Or holes in your flashing? Flashing protects the area where your chimney and the roofline meet, so faulty caulk work or holes can lead to leaks. If you see issues with your flashing, call A-1 Chimney Specialist — we can fix it before a small problem becomes a big one.
  • If your chimney damper — which blocks off the flue and keeps water out when the chimney isn’t in use — isn’t working correctly, you may need to have it repaired or replaced. We’ll check the chimney damper during an inspection and recommend the best course of action.

If you’re having problems with water getting into your chimney, or want to explore preventative measures such as waterproofing to keep that from happening, call A-1 Chimney Specialist at 931.967.3595 or click here to schedule online.

Sometimes, chimney leaks start with problems with the flashing, so be sure to have A-1 experts check it out.

  • review rating 5  Preston was extremely professional, knowledgeable and prompt. He took the time to explain our issue and answered all my questions. I would highly recommend A-1 Chimney Specialist!!

    thumb Paige Wheeler
  • review rating 5  Tanner and Preston more than met our expectations. They were friendly, knowledgeable, timely and professional. Don’t hesitate to use this company. It is rare these days to get this quality of service. Thanks guys. We want to have you back.

    thumb Sharon Doudt
  • review rating 5  Great people to work with. Definitely the best choice for chimney services in the area! FM

    thumb Brandtastic Marketing
  • review rating 5  Great service! Due to unexpected doctor appointments, I had to reschedule two times and they worked with me to get it done as soon as possible. They were very prompt; the living area was left exactly as it was when they arrived (no mess at all!) and answered my questions. I highly recommend them!

    thumb Sally Edwards
  • review rating 5  In a time where customer service is becoming more infrequent than frequent , I have to take a moment to acknowledge the superb above and beyond service my husband and I received from A1 Chimney . First of all , we came to use this company several years ago when they sleeved our 100 year old house's chimney so we could burn real wood . We have used them regularly to check and sweep our chimney since. This year however , I had a chimney fire . Thankfully no damage was done . In looking at my records , I realized I hadn't had the chimney swept in a few years . BIG mistake on my part , hence the fire . So I called the company , sing my woes , asking if it would be possible for them to come out before Thanksgiving , this is less than 2 weeks prior by the way . Kind Marty lets me know the first availability isn't until 12/16 but he will do his best to see what he can do. He calls me back the same day to let me know he had jiggled some things around and could be out 12/13 . I thanked him but asked if there were any cancellations to please let me know. Kind Marty , let me rephrase , very KIND Marty , calls me back a couple of days ago asking if we could be free the Monday pre Thanksgiving . Absolutely , I reply . Well on Monday afternoon Preston and Robert leave after checking for damage , cleaning and confirming the sleeve did exactly what it is designed to do , protect the house in the event a chimney fire takes place , never once suggesting it wouldn't have happened if I hadn't waited 4 years . So THANK YOU all for doing such a wonderful job ! You have made us and my out of town family very happy in making it safe for us to enjoy this holiday with lovely fires , something we / they look forward to on their cold weather visits . May each of you have a very Happy Thanksgiving ! You've certainly made ours !!! Gratefully , Linda & Gill Ramsden

    thumb Linda Ramsden


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