Old 02-09-2019, 11:42 AM
  #50  
Bullshipper
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Join Date: Sep 2003
Location: CA & San Carlos, Mx
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Originally Posted by diver dave View Post


agree. For a foam to be structural, it needs to adhere to a skin that has tensile strength. And to have a good measure of resistance to compression.
Its best to say that the foam is part of the structure, than to say it is “structural”.

If one understands how concrete with imbedded steel works, it is a similar argument.
yes, but the denser the foam is the harder it is so structual cores range from 6-30 lbs per cubic ft and not the 2 lb crap that so builders try to get away with
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