RoofLITE has some useful optional extras depending on what you want and what you need for your skylight windows. There are two opening options if your window is out of reach – a manual one (ZAR) which is an opening pole and also a kit to enable your window to be opened electrically - EPC. Also available is the RUC Underfelt Foil Collar and the Insulating Foam Collar (IFC) to ensure a smooth insulation.