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Egg-shaped Four Dwellings school

A rubber membrane just 1.2mm thick has waterproofed an egg-shaped primary school in Birmingham.

AAC Waterproofing roofed the 1,600sq m, timber-bearing Four Dwellings Primary School, a new build project forming part of the Birmingham BSF (Building Schools for the Future) programme, using its Prelasti prefabricated EPDM material.

AAC Waterproofing accurately measured and prefabricated the challenging, curved roof off-site at its North Wales factory. The company used a Datum line and bonded individual sheets in stepped lengths.

The new Four Dwellings Primary School, on the site of the secondary school with the same name, has been designed “from the inside out” by project architects dRMM. Classrooms surround a central hall and provide a link between internal communal areas and external landscaping.

AAC discussed with dRMM its Prelasti EPDM “synthetic rubber” alternative to asphalt and felt materials, and the two worked...

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