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flotation/insulation foam under floor get soggy with water?
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<blockquote data-quote="sparkbr" data-source="post: 90275" data-attributes="member: 1060"><p>I have only used it in 2" and 4" thicknesses, but I know it comes in 1/2", 1", 1.5" and might be available in 3/4", and 2.5" Sheets are typically 4'x8' and a sheet of 2" costs around $20. To calculate boyancy (if swamped) calculate the volume of foam, divide by 231 (231 cubic inches in a gallon) and multiply by 8.34lbs (the weight of a gallon of water). </p><p></p><p>For example - a full 4x8 sheet of 2" foam is 9216 cubic inches, which equates to 39.89 gallons and would float 332.73lbs (assuming it didn't break appart of course.)</p></blockquote><p></p>
[QUOTE="sparkbr, post: 90275, member: 1060"] I have only used it in 2" and 4" thicknesses, but I know it comes in 1/2", 1", 1.5" and might be available in 3/4", and 2.5" Sheets are typically 4'x8' and a sheet of 2" costs around $20. To calculate boyancy (if swamped) calculate the volume of foam, divide by 231 (231 cubic inches in a gallon) and multiply by 8.34lbs (the weight of a gallon of water). For example - a full 4x8 sheet of 2" foam is 9216 cubic inches, which equates to 39.89 gallons and would float 332.73lbs (assuming it didn't break appart of course.) [/QUOTE]
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flotation/insulation foam under floor get soggy with water?
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