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 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 by the Australian government pursuant to the to inquire into and report upon alleged misconduct in the building and construction industry in Australia. The establishment of the Commission followed various unsuccessful attempts by the Federal Government to impose greater regulation upon the conduct of industrial relations in that industry. The Royal Commission commenced on 29 August 2001 and was overseen by a sole Royal Commissioner, The Honourable Justice Terence Cole . Justice