The VELUX manually operated skylight provides comfort with free daylight and ventilation. With unparalleled energy efficiency, VELUX skylights block approx. 80% of radiant heat. With a choice of blinds available (sold separately), heat transference can be minimised still further. Operation is performed with the ZZZ 201 winder handle for in reach installations or the ZCT 300 extension rod for out of reach installations (ZZZ 201 and ZCT 300 must be purchased separately). *FLASHING sold separately. For corrugated metal or tile roofing, use EDW flashing model M08. For slate/shingle roofing, use EDL flashing model M08. For combination flashing, use EKW flashing.