The SOLID EI60 loft ladder is equipped with a double-sealed 66 mm thick hatch, thanks to which the heat transfer coefficient of the hatch amounts to 0.54 W/m2*K. The applied fireproofing guarantees fire resistance at the EI60 level. The all-metal ladder allows for the maximum load of 210 kg. The ladder's structure was powder-painted, giving it a modern look and ensuring durability for many years. To increase safety, the SOLID EI60 stairs have been equipped with a handrail facilitating entry, and with anti-slip feet. Ud - coefficient of the flap centre.