Energysaver composite panel rooflights are innovative triple skin factory assembled insulating rooflights (FAIRs) for composite roofs manufactured from GRP. They offer the best quality diffused natural daylight, thermal performance and ready-to-fit convenience for wide-span buildings. Delivering U-values from 1.9W/m²K down to 0.9W/m²K, Energysavers help a building achieve compliance with Part L of the Building Regulations. The standard Energysaver has unique features as standard offering quick, simple and reliable installation. With a long-life expectancy of 25+ years, Energysaver offers outstanding value for minimal extra cost.