The FV combines the advantages of both skylight and tilting window. It?s "warm" frame design incorporates Low-E glazing with toughened panes and a system of perimeter seals. Operated manually by a mechanism in the bottom part of the frame, the unique system of hinges guarantees both durability and functionality. Each FV skylight is supplied with an insect screen. Because of the location of the pivot bar in the top part of the frame, the insect screen is installed directly onto the frame. Where the skylight is located in an out-of-reach application, operation of the skylight can be done using the manual control rod (available for purchase). Low emission heat reflecting double glazing Beautiful, hand selected, pressure-treated, lacquered timber frames Special perimeter gasket underneath the frame for increased insulation Internal under glass gasket system for better wood and drywall protection New, easy, bracket free installation system UV resistant cladding made from coated aluminum for long performance Class 3 corrosion-resistant hinges Suitable for roof pitches between 15-85 degrees Better sizing eliminates need for additional support. Our frame has always drive for drywall beside construction of the roof - no need to build extra support for finishing drywall Double seals for better insulation between the sash and frame, when the skylight is closed.