Roof hatches improve a vehicle's ventilation by regulating the intake and expulsion of air. Roof hatches promote passenger safety by providing emergency exits. All Spheros Finland roof hatches comply with EU and United Nations regulations, have been tested by TÜV, BSI, UTAC, RDW and many others.As the products are mainly made of special plastics, they are lightweight, durable, robust, UV-protected and maintenance-free. Whether manually or electrically operated, assembly of all Spheros Finland products is quick and easy - all components are already included. The following parts are supplied with a roof hatch: Dome, outer and inner frames, thermal seals, opening mechanisms and even screws for assembly.