Products / Type NB Roof Hatch

A single-leaf 30 in. x 54 in. roof hatch sized for access by a ship stair where frequent use is expected, with a counterbalanced cover for one-hand operation and gasketed, insulated construction on a 12 in. curb with integral capflashing. It is offered in galvanized steel, aluminum or stainless steel, with an HZ model that BILCO's size table marks as Miami-Dade approved. The guide specification rates the cover for a 40 psf live load or 20 psf wind uplift. Its summary line repeats BILCO's generic wording about roof hatches for ladder access.