UPVC DRIP BOARD The Dripboard membrane absorbs and holds condensation until it can evaporate whilst insulating the sheeting and preventing drips from the underside of the roof, thus reducing the formation of condensation. Dripboard is a proven, economical way of stopping the underside of a UPVC roof dripping with condensation on uninsulated panels, by trapping and releasing water droplets back into the air. Dripboard membrane turns into anti-condensation roof sheets and is designed to reduce dripping, or running condensate, by creating a vapour barrier on roofing panels in buildings with moderate to high levels of humidity. Dripboard creates a medium for trapping moisture in specially designed pockets formed in the felt membrane. As moisture condenses in high temperature and humidity conditions, Dripboard controls how cyclical condensate forms onto the underside of roofing. It does not prevent condensation from forming and, when working correctly, feels damp to the touch. To help Dripboard work effectively, it is recommended to have a pitched roof of 10 degrees or more. Any lower than this and the shallow angle will cause the water droplets to drip down off the sheet without effectively evaporating back into the environment.