Known in the U.S. for skylights and roof windows, Velux has been manufacturing flat-plate solar systems worldwide for more than 15 years. The SRCC-certified Integrated Collector Systems now available here can be installed directly onto the roof deck for a low-profile appearance using a flashing system that covers all mounting hardware. One-, two-, or three-collector systems with 60-, 80-, or 120-gallon insulated storage tanks are available. 800.283.2831.