Water Pipes


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Old 02-09-07, 05:24 PM
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Water Pipes

What is the best insulating material to use for hot and cold water pipes under a crawlspace? There is no insulation on pipes to be seen and I would like to prevent a disaster.
 
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Old 02-09-07, 06:12 PM
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There is no "best" insulation for all circumstances. If you have a ventilated crawlspace and your home is located in an area that gets 20 below temperatures you may need to install electric heat tapes on all the piping. If you live in an area that rarely gets below freezing then any of the thin foam pipe insulation you get at the big box or corner hardware store will probably be just fine.

I like two-inch wall preformed rigid fiberglass with a foil/paper jacket. You will have to find a commercial/industrial insulation supplier in your area that will sell retail if that is what you want.

If your crawlspace gets flooded on any kind of regular basis then you need a waterproof insulation. Foamglas is one brand but it again is not readily available to the consumer.
 
 

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