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Posted by David Bonnell on November 25, 2007, 6:46 pm
Hi all,
I recently stumbled on a product that combines 0.5" of extruded
polystyrene (XPS) with 5/8" OSB in a 2'x2' panel. It is called
Barricade, is rated for 5000 pounds/sq.ft., and is meant to be used
directly on top of a concrete floor. There are no additional supports
between concrete floor and OSB layer...just the 0.5" layer of XPS.
http://barricadesubfloor.com/
Question: is there any reason why you couldn't lay down 4'x8' sheets
of XPS and 4'x8' sheets of 5/8" OSB to achieve the same result?
Again, the XPS would entirely be supporting the layer of OSB.
Material cost would be roughly 50% of the assembled 2x2 panels... (~$8
per panel)
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