54 BUILDING FABRIC


per square metre dream assivhaus, but if the industry is actually going to confront the housing crisis, a more practical and cost-effective answer is required. onsequently, the construction of a truly individual new home in West Sussex made full use of a composite solution which is increasingly being specifi ed to address thermal bridging on projects ranging from schools to multi-storey social housing developments. he six-bedroom, fi ve-bathroom dwelling near the village of Lurgashall was built by Grangewood Southern for a private client, with Fusion Brickwork being the specialist subcontractor responsible for laying 10 mm wide hermoblocks, both around the ground fl oor perimeter and where the slab spans a substantial basement.


forming the junction become a limiting factor, even when using a timber or light-gauge steel frame. opular on the continent, foamed glass insulation can offer a solution in some situations, but the hard truth is that the product solutions available only offer a


compressive strength of less than 3 a – or 3.0 Nmm2


– which does not even


match that of lower strength aircrete blocks, while the top performer in the hermalite range achieves 10 Nmm2


.


Foam is probably fi ne then for laying a raft foundation under your 1,00


Mark Bowman is technical manager for Marmox


he project’s unusual wall construction features an inner and outer leaf of concrete blockwork, faced with random natural stonework. Some 20 of the 600 mm long by 100 mm deep composite units were installed using sealant to secure the overlapping end joints, while their S encased mini concrete columns create the fully insulated support one at the base of the blockwork.


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