R-value (insulation) as ASHRAE 90.1 and the IECC prescribe U-values. However, R-value is widely used in practice to describe the thermal resistance of insulation products, layers, and most other parts of the building enclosure (walls, floors, roofs). Other areas of the world more commonly use U-value/U-factor for elements of the entire building enclosure including windows, doors, walls, roof, and ground slabs. The SI (metric) unit of R-value is whereas the I-P (inch-pound) unit is For R-values there is no difference between US customary units and imperial units, so the same I-P unit is used in both. Some sources use ″RSI″ when referring
Royal Commission into the Building and Construction Industry regulate the conduct of industrial relations on construction projects funded by government, through the medium of contract rather than legislation. In July 1997 the (then) Department of Employment, Workplace Relations and Small Business formed a 'Workplace Reform Group' targeting four industries for reform: the meat processing industry, the coal mining industry, the building and construction industry and the waterfront industry. The Workplace Relations Act and the Trade Practices Act 1974 were to provide the legal tools to deliver reform. The 1998 waterfront dispute was a reflection of the focus placed on these important industries. At about the time that the