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 regulate the conduct of industrial relations on construction projects funded by government, through the medium of contract rather than legislation. In July 1997 the (then) Department of Employment, Workplace Relations and Small Business formed a 'Workplace Reform Group' targeting four industries for reform: the meat processing industry, the coal mining industry, the building and construction industry and the waterfront industry. The Workplace Relations Act and the Trade Practices Act 1974 were to provide the legal tools to deliver reform. The 1998 waterfront dispute was a reflection of the focus placed on these important industries. At about the time that the