Beautifully engineered for a lifetime of use, the VELUX GGL roof window is ideal for in-reach attic solutions. With its patented centre-pivoting sash allowing for maximum ventilation, and with a choice of blinds available to add that finishing touch, this roof window is the perfect product for any attic space. Approx 70% radiant heat block and approx. 95% harmful UV reduction Ventilation flap provides passive ventilation while keeping the elements out Bushfire rated to BAL 40 (18-75° pitch, requires custom flashing & additional mesh screening - consult VELUX) Laminated safety pane as standard to meet AS1288 Sash rotates 180 degrees allowing the outer pane to be cleaned from inside