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 workplace laws. In March 2011 the ABCC took full responsibility for investigating complaints relating to wages and entitlements within the building and construction industry. Prior to this a memorandum of understanding had been in place between the ABCC and Fair Work Ombudsman (FWO) where such complaints were handled by the latter agency. ABC Commissioner Leigh Johns announced he would terminate this practice when he commenced his appointment on 11 October 2010. Office of the Australian Building and Construction Commissioner The Office of the Australian Building and Construction Commissioner (ABCC) (2005–2012) was an independent, statutory authority, responsible for monitoring and promoting