Hougue a La Perre, Guernsey

Client: Guernsey Housing Association
Type of works: supplied a Blackdown Green Roof.

A Blackdown green roof from Alumasc has provided a pleasant recreational space for residents of a new housing scheme in Guernsey.

Designed by architects Lovell Ozanne and Partners, the Hougue a La Perre housing development is situated on the northern outskirts of St Peter Port and is managed by Guernsey Housing Association. The project involves the development of 77 houses and flats constructed in 2009 on the site of the former Grand Bouet bus depot for Guernsey Housing Association in partnership with the States of Guernsey Housing Department, in order to create a sustainable and attractive neighbourhood.

The Blackdown green roof from Alumasc was specified for the podium deck above an underground car-park, which forms a courtyard for use by the residents. The 1200m2 intensive green roof will offer notable ecological and amenity benefits, providing a natural habitat for plants and wildlife, whilst also helping to reduce air and noise pollution, cutting carbon emissions and assisting with rainwater retention and attenuation.

Blackdown green roofs vary from extensive and biodiverse types which require minimal irrigation and maintenance, to intensive roofs such as the one at Hougue a La Perre, which are suited for areas of public and recreational use and require more tending.

The roof was installed over Hydrotech MM6125 structural waterproofing, also from Alumasc. Hydrotech is the first choice for BBA Approved waterproofing on inverted green roofs and hard landscaped podium structures in new build applications. Its high performance bituminous rubber blend allows fast and simple installation, even over complex roof details.

The Main contractor on the Hougue a La Perre project was Charles Le Quesne (Guernsey) Ltd.

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Alumasc Roofing Systems

Alumasc Roofing Systems

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