Archetech Issue 20 2015 | Page 75

A mechanical heat exchange system and thick insulation make for an energy efficient home. A study allows for working from home or can become a spare bedroom for elderly relatives visiting. The entrance is stepped up to meet flood requirements but these are wide and gentle for ease of access. The site is a former taxi garage and was designated as contaminated land. All 1.5m of excavated soil had to be tested and carefully disposed of. The garden walls are underpinned rather than demolished. A steel and timber frame spans off the existing walls to create the roof and floor structure. The roof is constructed from plywood over timber joists, covered with insulation and single-ply membrane. The geometry of the roof appears simple but is in fact incredibly complicated. It was modeled in 3D software, which enabled precise back and forth between consultants to ensure that the huge steel beams were completely hidden in the crisp angled finishes inside and by the roof finishes outside. www.vppr.co.uk Architects: vPPR Photographs: Ioana Marinescu, Noel Read [Page 75] Archetech - Issue 20 The vaulted roofs are covered with two tones of single-ply roofing membrane to produce a harlequin pattern, breaking up the large area of roof and greatly improving the outlook, which was previously onto rotten asphalt roofs. Inside the house, the vaults meet at sharp plastered edges, concealing the downstand beams rather than expressing them. Vault-like elements are repeated obsessively at each scale of the design, forming sculptural chamfered edges to the windows, fireplace and TV wall. The timber floors are laid in a cross pattern that reflects the vaults above them.