Product detailsLordex Bituminous weatherproof coating for Roofs is a premium grade, solvent-based bituminous waterproofer for use on all common roofing materials. It can be applied onto existing roofs or mastic asphalt, roofing felt, corrugated iron, fibre/cement, slates, lead, copper and zinc.It dries to form a tough, black waterproof coating and can be used as a water and moisture barrier or as a protection for metal.USESWEATHER PROOFING COMPOUND is an effective, general purpose roof coating. It is resistant to wash off by rain almost immediately after application and is therefore particularly suited to winter use. WEATHER ROOFING COMPOUND may be applied by brush or spray to waterproof and reseal many different types of roof covering, including: • Asphalt roofs• Concrete roof decks • Slates & tiles• Built-up felt roofs• Asbestos cement sheeting• Metal sheeting, including iron, steel, zinc & lead WEATHER ROOFING COMPOUND may be used in conjunction with a rot-proof hessian reinforcement scrim or glass fibre scrim.WEATHER ROOFING COMPOUND may also be used as a Vapor Barrier.