Roxul Comfortboard for Exterior Sheathing
I’m wondering if anyone has priced or used Roxul Comfortboard for exterior sheathing recently. Now that I can source this material in my area (Rockies USA), I’m interested in using this product for a project but am finding the pricing a bit deterring. I threw together a little R per buck spreadsheet for ready to order pricing (off shelf and big box pro desk). I was expecting a 20% to 40% premium for comfortboard but instead found pricing in the neighborhood of triple the cost per R per sf of foamboard of any type (depending a bit on your polyiso deration swag). 3″ Comfortboard appears to be running (4/21/2016) $42 a sheet.
So that begs the green building question? Is there an alternate sourcing folks have used? Is this really the price of the material? I’m a little surprised that 3x greater R cost is tolerated by the market.
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