TAKING FIRE RISK SERIOUSLY
In response to instances of moisture ingress in homes in north America during the late 1980s, the National HouseBuilding Council (NHBC) stipulated that where timber or steel frames formed the main part of a house's construction, a cavity must be incorporated. Chapter 6.9 of the April 2005 NHBC standards for cladding and curtain walling, that became effective from July 2005, states: 'For timber and steel-framed backing walls, a cavity of at least 15mm should be provided between the wall ...
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