
In some cases, the team performing the chimney relining may need to make structural adjustments to accommodate the new lining, and during this process it’s not uncommon for them to repair any small problems they find while servicing the chimney. Relining your chimney is one of the best ways to prevent rain from entering your chimney if you consistently notice water dripping into your fireplace every time it rains.
CHIMNEY LEAKS IN HEAVY RAIN CRACK
Over time, the clay lining could start to crack and chip, and it will be necessary to replace the lining with stainless steel or specialized alloy piping to continue protecting the flue. Your chimney has a clay lining on the inside of the flue that protects the masonry from the heat generated by your fireplace, and it should prevent rain from entering the flue. If there’s any problem with your chimney crown, it will be most noticeable during heavy rainfall. If your chimney crown becomes cracked, chipped, corroded, or bent due to physical damage, these issues can easily interfere with proper water flow and allow rain to enter the flue. This structure sits atop the chimney and typically features a sloped surface designed to allow rain to run off it and prevent it from entering the flue. The next possible source of rain entering your chimney is any damage to the chimney crown.

This means the water could freeze, thaw, and then refreeze, expanding the crack each time and eventually making the crack worse. Once small cracks form in the chimney’s structure, water can easily seep into these spots. All these factors can degrade the masonry of your chimney, eventually causing cracks and chips to form between the chimney’s bricks or stones. The portion of your chimney that extends outside of your home faces near constant exposure to the elements, including rain, snow, high wind, and sun exposure. One of the most common reasons for rain to leak into a chimney is physical damage or wear and tear to the chimney. The person conducting the test will intentionally pour water in and around the chimney until they can locate the source of the leak. The most common way for professionals to diagnose leaks into a chimney is a straightforward water test.
CHIMNEY LEAKS IN HEAVY RAIN PROFESSIONAL
In either case, you’re going to need help from a professional to have it fixed before you experience water damage in other areas of your home. If this seems to happen any time it rains, the source of the problem could be an issue with your chimney or your roof.

If you notice water trickling at the bottom of your fireplace, this is a problem that needs professional attention as soon as possible.
