Best type of insulation for cold water pipes?
Hi all. We need to insulate the cold water pipes in our cellar because the condensation is making the cellar damp. The pipes are a few feet from the boiler and the electrical panel. What is the best material to use that does not burn or release toxic chemicals?

cate
in General Discussion 3 years and 8 months ago
3
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cate | 3 years and 8 months ago
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Thank you so much for your reply, Master Plvmber, greatly appreciated. Hoping the black foam insulation doesn’t cause issues if it should ever, heaven forbid, catch on fire. I know they’re typically rated fire resistant. Thank you.

Master Plvmber | 3 years and 8 months ago
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Hi, Cate. For the surface temperatures you’re likely to encounter with your domestic cold water piping system, any black foam insulation will get this done. You just need to know your nominal pipe diameter or the outside diameter of the pipe you’re covering and what amount of length you’ll need. You could probably take a couple pictures and go to AF Supply or, even better, Park Slope Supply to get all you need. Or Lowe’s/Home Depot. That said, fiberglass insulation holds the temperature better but I tend to use that on pipes with more extreme temperatures…like steam.

cate | 3 years and 8 months ago
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Any plumbers have any opinion about best and safest type of insulation to use around cold water pipes in cellar to prevent condensation? (Rubber, cotton with foil, foam, fiberglass with foil, etc.?)