Continuous Insulation Sheathing Board is non-combustible.

Designed for use as exterior continuous insulation in commercial rainscreen wall systems, COMFORTBOARD™ CIS (Commercial Insulated Sheathing) is thermally efficient and vapor permeable. This rigid, high density, water repellent

[source: http://news.thomasnet.com/fullstory/Continuous-Insulation-Sheathing-Board-is-non-combustible-20011196]


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