R-value (insulation) contain no trapped CFCs or HFCs (e.g., half-pound low density foams). On certain brands, twenty-year tests have shown no shrinkage or reduction in insulating value. This has led to controversy as how to rate the insulation of these products. Many manufacturers will rate the R-value at the time of manufacture; critics argue that a more fair assessment would be its settled value. The foam industry adopted the LTTR (Long-Term Thermal Resistance) method, which rates the R-value based on a 15-year weighted average. However, the LTTR effectively provides only an eight-year aged R-value, short in the scale of a building that
Office of the Australian Building and Construction Commissioner August 2001 and tabled its final report in March 2003. The Royal Commission found that the building and construction industry was characterised by a widespread disregard for the law, cataloguing over 100 types of unlawful and inappropriate conduct. The Commission also found that existing regulatory bodies had insufficient powers and resources to enforce the law. The Building Industry Taskforce (BIT) was the predecessor to the ABCC, and was established on 1 October 2002 as an interim body prior to the establishment of the national agency envisaged by Royal Commissioner Cole. In March 2004 the Interim Taskforce became a permanent taskforce,