Definition: Meaning of, U value in English to English dictionary.
Pronunciation:/ juː ˈvaljuː /
noun
synonym
antonym
Word Forms:
Singular
Plural
U value
U values
a measure of how well a building element transfers heat, with smaller values corresponding to better insulation and hence less heat loss; it is the rate of energy loss per unit area per degree difference in temperature, and is equal to the inverse of the R value