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 the establishment of the Office of the Australian Building and Construction Commissioner (ABCC), an independent statutory authority responsible for monitoring and promoting workplace relations in the Australian building and construction industry. The ABCC was active between October 2005 and May 2012, when, following enactment of the , its functions were superseded by Fair Work Building and Construction, an agency of the Australian government. In May 1997 the Federal Government, with agreement from the States, prepared a National Building Industry Code of Practice. The government supplemented the Code with Implementation Guidelines. Fundamentally, the Code and the Guidelines were an attempt to