Model FVE Electric Vented 48 x 46 Low-E Sky Light - Outside Frame: 48-1/2" x 46-3/8" - Rough Opening: 46-1/2" x 45-1/2" - Daylight Area: 12.48 square feet - Low emission heat reflecting double glazing - beautiful, hand selected, vaccum treated, lacquered timber frames - new, easy, bracket free installation system - VE is being supplied with an electric operating system, which controls all the functions - The electrical circuitry governing the remote control is located in the bottom part of the frame - Built-in rain sensors automatically close the skylight with the onset of the slightest rain, an ideal labor saving device - Any electrical device equipped with the Z-Wave system module can be connected to the network - UV resistant cladding made from coated aluminum for long performance - Class 3 resistant to corrosion hinges - suitable for roof pirtches between 15-85 degree