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 of the Australian Building and Construction Commissioner (ABCC). The role of the ABCC was to monitor and promote appropriate standards of conduct throughout the building and construction industry. The ABCC operated between 2005 and 2012. The Commission's own estimate of its expenditures, as at the date of publishing its report, was that it had spent approximately 60 million. This figure makes this Royal Commission one of the most expensive in Australia's history. Royal Commission into the Building and Construction Industry The Royal Commission into the Building and Construction Industry, or informally the Cole Royal Commission, was a Royal Commission established