Roof hatches are manufactured from a proven design which quarantees ease of operation, long maintenance-free life regardless of climatic conditions.
The features are:
Ÿ materials: aluminium or stainless steel;
Ÿ sizes: customized to client¡¯s requirements;
Ÿ design loads: live load 2 kN/m2 with a deflection less than span/150; uplift 1 kN/m2;
Ÿ insulation: 25 mm rigid insulation in cover and curb;
Ÿ pitch correction: made to order to compensate for roof slope;
Ÿ spring opening: lubricated compression spring enclosed in telescopic tubes are reducing opening force to less than 5 kg;
Ÿ locking hold-open arm;
Ÿ hinges: zinc plated or stainless steel;
latch: zinc plated steel slam latch with dead bolt lock. Single-leaf hatches wider than 1.5 meter have two-point latch.