Buxton Associates

The contemporary extension was designed to provide additional entertaining and living space to this 1930’s family house in Surrey. To create the large, clear spans we opted to use a steel portal frame which allowed us to keep the vertical structure hidden within the blade piers either side of the windows.

The roof overhang and the brise soleil create a thermal bridge with the main roof support structure. To overcome this we used the Schöck Isokorb thermal break system; these are specifically designed to provide insulation between interconnected steel elements. Overall lateral resistance to the frame is provided by portal action for the garden elevation with the remote ends of the roof beams built in to the existing house wall.

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