Grade II listed building insulated with FOAMGLAS

FOAMGLAS has been used to insulate the roof and facade of a new extension to the Grade-II listed, 120 year old Granary and Malthouse buildings, among the oldest within the London Borough of Barking and Dagenham.

Pollard Thomas Edwards Architects designed the extension for design and build specialist Rooff Ltd, the brief from which was that materials used should demonstrate high standards of sustainability and energy efficiency.

Rooff Development Director Steve Drury, commented:

“At an early stage FOAMGLAS® was specified for its environmental qualities and long term reliability as it was to be used in conjunction with a KME Tecu Bronze facade. The metal has a potential design life of over 200 years so it was important to use insulation which would guarantee similar longevity”.

FOAMGLAS® insulation, with its unique cladding fixing system, keeps thermal bridging to a minimum; the resulting U-value exceeds Building Regulations by more than 25 percent. It is not susceptible to thermal ageing and is impervious to water and water vapour. On this project it actually provided an element of exterior weatherproofing as building progressed so interior works could begin while the façade was still being installed.

For the pitched roof, FOAMGLAS® READY BOARD T4+ was bonded and sealed to the timber board structure. Metal Plates type PC® SP 150/150 were inserted into the READY BOARD and a 180 gm/ m² sanded bitumen membrane torch-applied. For the facade, FOAMGLAS® W+F SLABS were bonded to the vertical timber board structure and sealed in a similar way.

Metal Plates were inserted into the insulation and mechanically fixed through to the timber structure using thermally isolated screw fixings.

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