Material: Steel- 14 gauge galvanneal steel curb and cover with 22 gauge galvanneal steel cover liner. Aluminum – 11 gauge aluminum curb and cover with 18 gauge aluminum cover liner.
Finish: Gray texture powder coat on steel, silver texture powder coat on aluminum.
Domes: Clear over white acrylic domes.
Gasketing: Bulb neoprene door seal.
Insulation: 1” polyisocyanurate (R-6) on curb and in cover
Hinges: Heavy-duty galvanneal steel or aluminum hinge with bolt pin.
Hold-Open Arm: Clear zinc-plated steel hold-open arm with red plastic coating.
Latches: Two point universal spring latches on each cover with with exterior and interior handles.
Spring: Pressure intensifiers with compression springs provide lift assistance.