U-value

noun U-val·ue \ ˈyü-ˌval-(ˌ)yü \

Definition of U-value

:a measure of the heat transmission through a building part (such as a wall or window) or a given thickness of a material (such as insulation) with lower numbers indicating better insulating properties — compare r-value

Origin and Etymology of u-value

unit


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to praise usually to excess

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