11-03-10, 07:18 PM | #11 |
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Its really not that much. I believe this is polyethylene foam material. So, I'm going to guess its not quite as good as polystyrene insulation (R5/inch). Even so, if it were R5/inch you'd be looking at just over R3 being 5/8" thick.
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Tags |
hot water, insulation, pipe, water heater |
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