Double hinged leaf.

Hinged metal door with coplanar leaf and frame on both sides. The frame is made of bended electro-zinc coated steel profiles (1.5 mm thickness) welded to each other. The installation of the frame to the wall is made through face fixing, supported by a inner metallic portico to which the frame is coupled.
Steel spikes welded in the hinges side engage the leaf to the frame when the door is closed. The leaf is made of two electro-zinc coated steel panels (0.8 mm thickness) and contains thermal insulating and acoustic materials according to the TRIAconstructive system.
The use of intumescent joints ensures the necessary tightness against flames and hot gases. The pivoting behavior of the door is ensured by three hidden hinges TECTUS - SIMONSWERK.