What does a roof access hatch weigh?

All the roof access hatches and skylights are made of stainless steel and aluminium and are powder coated. Through clever use of the material, a design has been developed that offers sturdy construction yet very light operation.

Model DL97 (900 x 700 mm)       65 kg
Model DL99 (900 x 900 mm)       75 kg
Model DL147 (1400 x 700 mm)  85 kg
Model DL159 (1500 x 900 mm)  105 kg
Model DL249 (2400 x 900 mm)  145 kg

Model DL189 with polycarbonate window (1800 x 900 mm): 130 kg
Model DL249 with polycarbonate window (2400 x 900 mm): 150 kg

Model DL189 with glass window (1800 x 900 mm): 230 kg
Model DL249 with glass window (2400 x 900 mm): 250 kg