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 Bill" is passed by this Parliament', and the ABCC established. Nil. The "Building and Construction Industry Improvement Bill 2003" was tabled in Parliament; with an Explanatory Memorandum circulated by Minister. The Minister delivered his Second Reading Speech on 6 November 2003. In 2004, the Parliamentary Library published an analysis of the Bill's history. In October 2003 the Senate referred the Bill to the Employment, Workplace Relations and Education References Committee for inquiry and report. The Committee received submissions, conducted hearings, and tabled its Report on 21 June 2004. The Committee, by a majority composed of Senators from the Democrats and