ROCKWOOL Comfortboard® 80 thermal insulated sheathing is a rigid stone wool insulation board designed for use as an exterior continuous insulation. Comfortboard® 80 does not produce smoke or propagate flames, keeping occupants safe and reducing property damage in the event of a fire. Vapor permeable, Comfortboard allows fast outward drying, keeping moisture out of your wall assembly. Certified by the California State Fire Marshall’s Building Materials Listing Program (BML), Comfortboard® 80 has also received ICC-ES validated product acceptance for the following uses:

• Non-structural thermal insulation in non-fire-resistive rated dwellings

 • Exterior perimeter insulation around foundation

• Under flat concrete slab

• A component of residential wood-framed cathedral ceilings

• In areas where probability of termite infestation is ‘very heavy