We ordered and took delivery of 140 sheets of 2″ x 2’x8′ XPS foam and 150′ of weeping tile drain (for radon protection).  We also got a 20’x100′ roll of 6mil poly to use as a vapour barrier under the XPS.

XPS Foam & Weeping Tile Drain
XPS Foam & Weeping Tile Drain

The XPS foam we will double up to give a total of 4″ of foam, or R-20 insulation under our slab.  From there we will staple down our 1/2″ hePEX tubing to provide the radiant heat in the basement slab.


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