Fixed (not opening) flat roof window CFP is ideal where there is a need for bringing in large amounts of daylight without adding extra ventilation. This is a double glazed flat roof window with laminated glazing and a polycaronate dome with a uwValue of 1.4 and a udValue of 0.72. The external frame size including kerb is 138cm x 138cm. Flat roof domes Double glazed window with protective polycarbonate cover. Excellent sounds insulation from rain and hail. Opaque polycarbonate cover. Comes with a 150mm kerb. Laminated glazing 6.4mm laminated inner pane offers additional safety. Offers improved noise reduction compared to - -34 and - -59 glazing. 4mm toughened outer pane with low-E coating. Clear and clean coating to keep windows clean for longer. Properties  10 year guarantee on windows and flashings. Suitable for roof pitches between 0 and 15. Certified to European security standards: EN 1627-30. BBA certified. AA fire rated.