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#29
4th November 2008
Old 4th November 2008
  #29
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Quote:
Originally Posted by dykstraster@gmai View Post
anybody?
Sorry John, I missed the post above. The answer is pretty simple, actually: the plastic is just a whole lot thinner and its structure is such that it transfers enough energy to the rigid fiberglass/mineral wool to be useful rather than detrimental. Comparing the two from a physics standpoint is apples and oranges.

Make sense?

Frank