Model FV Manually Vented 32 x 38 Low-E Sky Light - Outside Frame: 32-1/2" x 38-1/2" - Rough Opening: 30-1/2" x 37-1/2" - Daylight Area: 6.38 square feet - Low emission heat reflecting double glazing - beautiful, hand selected, vaccum treated, lacquered timber frames - new, easy, bracket free installation system - 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 - double seals for better insulation between the sash and frame, when the skylight is closed - UV resistant cladding made from coated aluminum for long performance - Class 3 resistant to corrosion hinges - suitable for roof pirtches between 15-85 degree