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R-value |
Also found in: Financial, Wikipedia | 0.02 sec. |
R-ValueSee MOS. R-value [′är ‚val·yü] (engineering) An index of the ability of a substance or material to retard the flow of heat; higher numerical values correspond to higher insulating ability. 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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