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
Royal Commission into the Building and Construction Industry to a government authority'. On 29 August 2001, the Governor-General issued Commonwealth Letters Patent pursuant to "the Constitution of the Commonwealth of Australia", the and other enabling powers" appointing The Honourable Justice Terence Cole as the sole Commissioner and the commission's terms of reference. The commissioner was directed "...to inquire into certain matters relating to the building and construction industry..." Subsequent to the Royal Commission, Cole was appointed as an Officer of the Order of Australia in 2005 for "service to the judiciary, particularly judicial administration, to reform of the building and construction industry, and to the community through the