Top Marks for Alumasc Waterproofing at Petchey Academy

Roofing specialists Alumasc have supplied their Hydrotech MM6125 structural waterproofing system to a stunning new school building in London. The Petchey Academy in Hackney is home to 1200 students and boasts a state-of-the-art building incorporating a sixth form centre.

Architectural practice Aedas required a waterproofing solution to fulfil a challenging brief. Alumasc’s Hydrotech was installed by Tilbury Contracts of Rainham, Essex, to provide a fast track waterproofing and inverted roofing system to the main roof area covering 2600m². Separate plant areas and a 400m² terrace were completed early, together with 1300mm high waterproofed and insulated perimeter upstands. This enabled the timely installation of associated glazing and cladding to ensure that tight contractor deadlines were met successfully.

Hydrotech is a durable, self-healing monolithic waterproofing membrane, which was the first hot-melt waterproofing system to be introduced to the UK construction market. The system boasts a respected performance record spanning 45 years, for use on protected roofs, plaza decks, green roofs, water features or access roadways.

Hydrotech’s unique formulation guarantees lifetime performance. It is manufactured using 20% post-consumer recycled material and is supplied under Alumasc’s ISO 14001:2004 Environmental Management Standard. In addition, the system is fully warranted, BBA approved and has European Technical Approval ETA-05/0152.

The Main Contractor at Petchey Academy was Norwest Holst.

For more information on Hydrotech MM6125 or to request literature, please call 0808 100 2008. Alternatively, please visit

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