Fakro 877N01 White UPVC Roof Window

V35 slide adjustable background ventilation.|TopSafe; security and safety offering reinforced hinge and keep together with a steel slat to the lower part of the sash to achieve at least class III safety as per EN13049.|External aluminium colour reference RAL7022.|Internal frame white multi-chamber PVC-U finish (galvanised steel profiles within chamber to strengthen for fixings.) Bottom placed handle with 2 micro opening positions.|Glass construction 4H-Tg15Ar-33.2mm overall thickness of 26mm with an anti-burglary class of laminate 33.2 (class p2a). Producing a U-Value of 1.3W/mK (glass U-Value 1.0W/mK).|External tempered glass, Warm TGI Spacer filled with inert Argon gas.|Internal pane has two 3mm thick sheets of glass with layer of PVB Plastic membrane between them, on the inner side of the laminated glass there is a|Acoustic rating 33Db (-1.-4).|Can be used on roofs with pitches between 15-90.|P2 double glazing anti-burglary |Easy to fit with universal bracket fix system