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The difference a proper mud mix makes on a chimney rebuild
We redid a 1920s chimney in St. Louis last month, and the owner had a cheap, sandy mix from a big box store. After one rain, the mortar was already crumbling. We tore it out, used a Type N mix with the right lime ratio, and it's been solid through three storms now. What's your go-to mix for old brickwork?
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holly7136mo ago
That bit about the sandy mix from the big box store is so real. My neighbor tried to patch his walkway with one of those bags last fall. It looked okay for a week, then the first freeze came and it just turned back into a pile of sand and dust. He ended up having to get the proper stuff with the lime, like you said. It's still holding up now. Makes you wonder why they even sell the cheap stuff.
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lewis.troy6mo ago
Honestly @holly713, sometimes that cheap stuff is fine. If you just need a quick, temporary fix for a season, why spend the extra money? Not every patch job needs to last a decade.
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cooper.phoenix6mo ago
But they sell it because sometimes you just need a quick fix that lasts a few months, not a permanent solution.
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