Designed for buildings exposed to extreme temperature conditions, this roof hatch features a cover and curb that are fully insulated with an ozone-friendly 2-inch polyisocyanurate thermal insulation board, which achieves an R-value of 12. This insulation is a closer match with modern energy-efficient roofing materials. The EPDM finger-type gasket on the cover makes a positive seal with the curb, which reduces air permeability and decreases heat loss. The hatch itself is made from aluminum and meets LEED requirements for recycled content.
Enhanced Performance Roof Hatch by Bilco Company. www.bilco.com. Circle 204.
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