UValues for common materials
· Reference Table for "U" Values "U" Value is the coefficient of transmission,, the transmission of heat through the materials, which compose the building's "envelope," or outer shell. "U" Value has an inverse relationship to "R" Value. For example, a building with material with an "R" Value of R11 converts to an "U" Value of ( 1/R or 1/11 = ).
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