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Find descriptions of various technical and non-technical glass terms. Choose the first letter.

U

U-factor (U-value)
This is a measure of the rate of heat loss of a building component. It is expressed as watts per square metre, per degre Kelvin, W/m2K.

UV transmittance
Determines the percentage of solar energy in the form of ultra-violet radiation transmitted by glazing.

UDL
Stands for uniformly distributed load.

U-value
A measure of the rate of heat loss of a building component.



 
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