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R-value |
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R-value A measure of the heat conductivity of material.The higher the R-value,the better the insulating qualities.The Federal Trade Commission,in something called the R-Value Rule,requires certain disclosures regarding insulation. Among other things, new home sellers must put the following in every sales contract: the type, thickness, and R-value of the insulation that will be installed in each part of the house.Failure to make the required disclosures amounts to a deceptive trade practice and is punishable by fines.For full text of the rule, see 16 CFR 460 available at the Government Printing Office Web site at www.gpo.gov. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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masonry wall system offers higher insulation value and thermal mass; solar hot water heat and domestic hot water nbsp;with other blowing agents and is said to provide insulation value between that of HFC-245fa and pentanes. They provide thermal mass with a high insulation value of R 40 as rated by the Canada Mortgage and Housing Corporation (CMHC). |
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