БългарскиEI 120 Rectangular Vertical
Description
Vertically installed air duct with rectangular cross-section, protected with the fire protection insulation system “IsolStop Fire 120 System”. The fire protection insulation system consists of “IsolPlate” insulation, manufactured by “Chemical Products” Ltd., which comprises stone wool boards with a thickness of 103 mm and a density of 120 kg/m³, faced on one side with aluminium foil reinforced with fiberglass mesh. Fire resistance class: EI 120.