Waterproofing the first StormStoreTM The Challenge FP McCann manufactures, supplies and delivers precast concrete to the UK’s building and civil engineering sectors. They approached Pozament, Tarmac’s specialist construction products brand to help them waterproof a pioneering new storm water management system they’d developed. The first of its kind, StormStoreTM is a bespoke, precast concrete system that offers an alternative to using plastic tanks. Storm water management systems are heavily regulated and undergo rigorous performance testing at the development stage. FP McCann faced a major challenge. They needed to specify the correct materials and joint details that would make the tanks 100% watertight The Solution One of the first things we did was test the permeability of our construct

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