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 Australian Naval Reserve and conservation and arts organisations." The Commissioner was appointed to investigate certain matters in relation to the building and construction industry. Those matters were defined in the Letters Patent as follows: The powers of Royal Commissions in Australia are set out in the enabling legislation, the . Royal Commissions, appointed pursuant to the "Royal Commissions Act" or otherwise, have powers to issue a summons to a person to appear before the Commission at a hearing to give evidence or to produce documents specified in the summons; require witnesses to take an oath or give an affirmation; and