Is your chimney falling apart? The most common cause for a chimney to fall apart is from water that is collecting in the chimney. The water will deposit then freeze and this causes the bricks and chimney to fall apart. This is also referred to ask ‘spalling’. Spalling is a common problem and is the common cause for a chimney problems.
What Are the Most Common Causes of Chimney Deterioration?
Water is public enemy number one when it comes to brick chimneys. Over time, moisture seeps into the bricks and mortar, and as temperatures drop—particularly during those brisk Connecticut winters—that water freezes and expands. This cycle of freezing and thawing creates cracks and can eventually cause bricks and mortar to break apart. Chimney pros call this ‘spalling’—and it’s one of the usual suspects behind chimney trouble.
But water isn’t the only culprit. Here are a few other root causes to keep an eye on:
- Age of the Chimney: Older chimneys have weathered more seasonal changes. Years of exposure to rain, snow, and sun can weaken brick and mortar, making them prone to crumbling.
- Inferior Building Materials: Sometimes older or second-hand bricks are reused in construction. While recycling is generally great for the planet, in chimneys this can backfire. Salvaged bricks or bricks weakened by decades of prior use are naturally more susceptible to spalling and general deterioration.
- Shoddy Construction Techniques: If a chimney isn’t built following the best practices (think proper bricklaying, sound mortar application, and good structural support), it will deteriorate faster than one built with care. Poor joints and improper materials create pathways for water to invade, accelerating wear and tear.
- Missing or Damaged Chimney Caps: A quality chimney cap wards off water infiltration, but if the cap is missing—or has seen better days—rain and snow can flow right in, hastening brick decay.
The good news? Spotting these issues early gives homeowners a fighting chance to stave off serious damage.
If a homeowner catches the problem early, then a tuck pointing can repair the damages. Tuck pointing will remove the current mortar, then replace it with new mortar. The chimney liner may need to be replaced, too because that can cause a chimney to fall apart, as well.
When is Chimney Rebuilding Necessary?
Sometimes, chimney damage is too severe for a simple patch job or tuck pointing to fix. If large sections of bricks are crumbling away, or if the chimney structure is leaning or unsafe, it may be time for a rebuild.
There are a couple different approaches—sometimes only the upper portion of the chimney needs to be rebuilt, especially if damage is isolated at the top. In more serious cases, a full rebuild from the roofline up (or even from the foundation) may be the safest solution.
Common reasons for chimney rebuilding include:
- Extensive spalling across many bricks
- Large cracks running through the masonry
- Chimney leaning away from the house
- Serious water damage that has compromised structural integrity
If you notice these problems—or if repairs never seem to last—it’s best to consult a professional. Don’t delay, because putting off a rebuild can lead to even more expensive repairs down the road.
If you see damage to your chimney, immediately call a professional chimney sweep company. A professional will evaluate the chimney and liner, then determine the fix.
Safeside Chimney is the specialist in chimney repair and replacements. Give us a call today if your chimney is falling apart.
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