Features:
- 14 gauge galvanized steel
- 12" high curb and 3-5/8" wide flange for securing to roof deck
- Cover includes a 14 gauge aluminum exterio
- 22 gauge aluminum liner with a TPE draft seal gasket door seal
- Insulation 1" fiberboard insulation surrounding the base
- 1" mineral wool insulation between the exterior cover and liner
- Heavy-duty hinge, heavy gauge automatic hold open arm
- (2) compression spring-operated cylinders
- Railing is 1-5/8" galvanized steel with zinc-plated caps
- Galvanized 2" x 2" 16 gauge steel with galvanized clamps
- Guard is a zinc plated ASTM chain