Transform a rooms ceiling space to flood the room with natural light. Simple sleek & modern design to add a focal point to the room. Thermally efficiant self cleaning double glazed glass units providing a 1.2u value. DIY'er friendly & can be fitted easily with the supplied installation guide. Suitable for flat roof extensions orangeries new builds kitchen diners etc. Precision cut system to size to suit 5 timber upstand sizes. Designed with minimum rafters possible to allow more glazing area than roof structure allowing more light.