What is a U-value? – video

What is a U-value and how it can be calculated?

A U-value, also known as thermal transmittance or thermal conductance, is a measure of the rate of heat transfer through a building material or assembly (such as walls, roofs, windows, or doors). It is an important metric in the field of building construction and energy efficiency.

U-values tell us how effective a material is as an insulator and can be calculated for blinds and shutters to demonstrate how effective they are at insulation

In simple terms, the U-value quantifies how effective a material or building component is at insulating against heat transfer. A lower U-value indicates better insulation and, consequently, reduced heat loss through that material or assembly. Conversely, a higher U-value implies that more heat can flow through the material, which is less insulating.

It’s essential to consider U-values when designing or renovating buildings to ensure they meet energy efficiency requirements, provide comfort to occupants, and minimize energy consumption. Engineers, architects, and builders often use U-values in energy modeling and building design to make informed decisions about insulation materials and construction techniques.

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We are members of the BBSA and this article is drawn from the BBSA’s Shade IT website: