Nail Base Insulation: Cornell Corp.

Ventilated ThermaCal^® non-structural nail base insulation installed over heavy timber, plywood, and metal decking in accordance with asphalt shingle manufacturers' warranties. Insulation screws and fasteners are available.

Nail Base Insulation Characteristics
	Economical and efficient Rabbetted edges or tongue-and-groove foam Various thicknesses for R values up to 32 Economical, two-layer applications available Wood block spacers for many directions of air flow Non-ventilated ThermaCal® available for other roofing material