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Re: GBlist: Recycled XPS
>Please keep in mind that all of the extruded polystyrenes and urethane-based
>board stock products are blown with ozone-depleting chemicals, and as such,
>should be avoided when possible. One major expanded polystyrene producer,
>has sent me plenty of literature showing how EPS can be used below grade
>(though I think I prefer mineral fiber board there) and on flat roofs. I
>the XPS/urethane producers have perhaps done a fear number on us about EPS not
>being adequate in these applications - any experience out there?
Another advantage of EPS in below-grade applications is that it is
available with a borate treatment, which seems to deter termites. I don't
believe any way has been found to treat XPS or other foam insulations in
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