Our steel sections are exclusively manufactured in a double-skinned sandwich construction and filled with an insulating rigid PUR foam core. This ensures improved soundproofing and heat insulation, and quieter door operation compared with single-skinned garage doors. The flexible lip seals between the sections fit closely even at low temperatures. They prevent any heat losses and keep the dust out.
Sectional garage doors are filled with a 20 mm rigid PUR foam core to guarantee good acoustic and thermal insulation performance (heat insulation value K = 1.0 W/m²K).