Harmer Drainage high performance Roof Outlets and SML above ground drainage were recently specified for a new, forward thinking children’s hospital in Liverpool.

The Alder Hey Children’s Health Park is a large £250m project developed to improve the paediatric medical facility and enhance the experience of both patients and staff. The aim is to set the hospital as a new benchmark for the delivery of paediatric care in the UK and around the world. It includes six wards, a large critical care unit, 16 theatres and a host of clinical services, together with shops and cafes.

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Covering a floor space of more than 60,000 sq. metres, it’s been designed around colour and orientated to make the most of its heavily landscaped setting. A mix of curved and flat roofs enhances the design and architecture. All rooms look onto the surrounding park, helping to blur the lines between inside and outside. The hospital, designed by BDP, won the Prime Minister’s Better Public Building Award at the British Construction Industry Awards. 

High performing products were key criteria for the design and build of Alder Hey. Through M&E merchant BSS, Harmer supplied its SML cast iron soil and waste pipes chosen for its lightweight, dry jointed system, with the assurance of BBA certification, Kitemark accreditation and CE Marking conforming to BS EN 877. The above ground drainage system is strong, durable, easy to install and non-combustible, which means fire protection collars are not necessary. Excellent noise attenuation tested to BS EN 14366:2004 is another key benefit of Harmer’s unique cast iron pipes, which means the sound of swooshing water cascading down from upstairs fixtures is suppressed.

Harmer also supplied high capacity aluminium flat roof outlets, which are ideal for flat roof drainage applications. The outlets are lightweight, non-corrosive and highly durable. They are also easy to fix and require minimal maintenance. The high flow performance ensures the outlets drain up to 40% more roof area than conventional gravity outlets.