Stormdry is a deeply penetrating water-repellent cream for the protection of masonry. It prevents rain penetration into masonry materials by lining their pores rather than blocking them – allowing the masonry to continue to breathe naturally. Unlike waterproof paints or waterproof coatings, Stormdry retains the natural finish of the masonry so is particularly suited for application to brickwork or stonework.
Stormdry is applied to masonry in a single coat by means of brush, roller, or spray. Once applied, it penetrates deeply into the masonry before curing to form a colourless, breathable water repellent barrier.
Stormdry can be used to protect against rain penetrating through the pores of masonry materials. Where masonry is in poor condition repointing incorporating Stormdry Repointing Additive and filling of cracks may also be necessary.
By creating a deep water-repellent zone on the masonry surface, Stormdry ensures that the masonry remains dry throughout the year. This maximises its thermal resistance, as dry walls are better insulators than wet walls. Testwork conducted by the University of Portsmouth using Stormdry suggests that energy saving of up to 29% are possible when Stormdry is applied to buildings of solid wall construction.
Stormdry can be used to increase the flood resistance of masonry as part of a flood resilience system. When used in conjunction with a cavity drain flood protection system (e.g. Oldroyd), the use of Stormdry will reduce the amount of flood water that is able to pass through the masonry – reducing the risk of floodwater overwhelming the pumping system.