Construction
Sash thickness starting from 76 mm; frame thickness starting from 79 mm; sash and frame in wood; corner connection with cylindrical wooden pins and anti-torsion joint, drip groove obtained in the lower crosspiece of the frame. 5 types of frame available depending on aesthetic and design needs (frame 1, 2, 3, EOS, ATF PA). Thermal break made of wood (Fir). Three fabric gaskets with excellent shape memory.