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My quick fireplace seal job almost led to a big problem

I decided to close off my fireplace for the warm months with some sealant from the store. It seemed like an easy weekend project, you know, to keep drafts out. But the stuff I used wasn't right for chimneys and started to flake inside. My buddy who sweeps chimneys said it could have trapped moisture and caused rust or worse blockage. Always double-check with a pro before doing any kind of chimney cover-up.
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2 Comments
marknelson
Yikes, I did the same thing with the wrong foam once.
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michael_bennett11
Was it the expanding kind that goes everywhere? My friend grabbed the wrong can for a door draft... thought it was minimal expand but it wasn't. That stuff puffed up like crazy and leaked all over the trim. He spent hours scraping it off the wood grain... left a nasty residue too. Pretty sure he just lives with the cold spot now.
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