29 Jun '12, 9pm

m2·°C/W per inch versus R-value or RSI values? #green

It appears that the latest insulation performance values are being related in (area) x (temperature) divided by watts (energy/time). In the recent article "Understanding Energy Units" you clarified and defined types of energy units, including watts. I read it in hopes of understanding what m2·°C/W ultimately means when selecting or comparing different insulation materials but after reading it I am still left in the dark. I also know what a metre is: it's 3 feet 3-3/8" inches! I have to covert it if I want to understand it. I realize that R value is a primitive way of looking at thermal performance, but is there any way of converting m2·°C/W into an R value or RSI scale for the sake of simple comprehension?

Full article: http://www.greenbuildingadvisor.com/community/forum/energ...

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