Search the Kids Internet
Encyclopedia > R-value
Article Content
R-value
The R-value is a measure of thermal resistance used in housing insulation. It is defined as R = ft2 F° h / Btu.
For comparison, the SI unit of thermal resistance is R = K.m²/W, and 1 ft² F° h / Btu = approx. 0.1761 K.m²/W.
All Wikipedia text is available under the terms of the GNU Free Documentation License
|
Search Encyclopedia
|