GDL Model - CABRIO Balcony Roof Window - Outside Frame (W" x H"): 37-1/16" x 99-1/4" - Rough Opening (W" x H"): 39-3/8" x 101" - CABRIO roof balcony window can be used on its own in roof pitches 35 degree and 53 degree - Dual-sash operation: top opens for ventilation and bottom opens outward to create a roof balcony - When the GDL CABRIO roof window is closed, a ventilation flap can be opened to provide a breath of fresh air, even if it is raining outside - Interior finish: Natural pine