F-PIR FR insulation panels are suited for almost all structural solutions where solid fire resistance is required the insulation, such as P1 fire class structural solutions with ventilator slots for multistorey buildings. FF-PIR insulation products have been certified by Eurofins Expert Services for use in P1 fire class buildings with the maximum height of 56 meters. FF-PIR FR insulation can be used in structures where the surface fire class requirement for insulation is B-s1, d0. Such structures include ventilated exterior wall structures of P1 fire class apartment buildings, for example. FF-PIR FR panels feature a special coating on both sides. The FF-PIR FR panels are always installed into the inner envelope with the dark flame retardant laminate facing outward, which provides a fire class of B-s1, d0. The panel is thus always installed into the structure with the black FR side facing the ventilation gap and the light gray side against the concrete. When the FR laminate warms up, it will expand approximately 35 mm and close the ventilation gap. The fire class of the insulating foam component of FF-PIR insulation is D-s2, d0. Dimension 600*2600mm