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, also known as fixed flat roof windows, 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 168cm x 168cm. Flat roof domes • Double glazed window with protective polycarbonate cover. • Excellent sounds insulation from rain and hail. • Clear 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.