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Roof drainage

The use of vacuum fluid collection systems can be employed in a wide range of situations. Roof drainage is one typical example of the versatility of this technology. Choosing a vacuum system for roof drainage allows storm water to be lifted to the back of the roof for disposal to ground level. This eliminates the requirement for down pipes at the front of the roof, leaving an unobstructed view for spectators. Eliminating down pipes at the front of the roof may also be desirable for the aesthetic appeal of buildings.


The roof drainage systems offered by Redivac incorporate interface valves located in the roof space. The valves open and close depending on the level of rainfall from a light drizzle to a heavy storm. Vacuum fluid collection systems have the added advantage of not requiring electrical energy. Combined with low maintenance costs and their self cleansing properties they offer an efficient and cost effective alternative to the use of traditional pumps.


The Number One Court at Wimbledon is an example of the successful application of vacuum technology for roof drainage. Redivac were approached by the All England Lawn Tennis club to offer a drainage solution for the symmetrical cantilevered roof with no supporting columns within the seating area. The vacuum system offered by Redivac proved to be the ideal choice. The system allows drainage of both the inner and outer gutters, via dual ring mains, back to a single collection station.  This has the capacity to be switched off during play on the court ensuring complete silence for the players. The storm water is then discharged into the main drainage system in the road outside.