Constructed of 18-gauge galvanized steel with continuous welded seams
Large 3″ built-in 45 cant to accommodate roofing material to top of
curb. Cant is beveled at corners for better support of roofing material
Wood nailer (11⁄2″) secured to top ledge
Lined with 11⁄2″ fiberglass fire-resistant, sound-absorbing insulation
Damper shelf
Options: Aluminum (16-gauge) construction, Burglar security bars,
Metal liner (galvanized or aluminum), Special heights up to 24″, Single
or double pitched curbs for sloping roofs