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ISO 10292

Glass in Building - Calculation of Steady-State U Values (Thermal Transmittance) of Multiple Glazing

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Organization: ISO
Publication Date: 1 January 1994
Status: active
Page Count: 11
ICS Code (Glass in building): 81.040.20
scope:

This International Standard applies to glass, coated glass and materials opaque in the far infrared wavelengths. It gives the fundamental rules for calculating the thermal transmittance, U I), in the glazing central area, The combined edge effects due to the thermal bridge of a glazing unit spacer and of the window frame are not included.

These rules are intended to enable the heat loss through glazing in a building to be estimated from the glazing U values and, together with heat losses through the opaque elements of the building, are used to determine the capacity of the heating or cooling plant.

In addition, U values for other purposes can be calculated using the same procedure, in particular for predicting:

a) conduction gains in summer;

b) condensation on glazing surfaces;

c) seasonal heat loss through glazing in determining overall energy use in buildings;

d) contribution of absorbed heat in determining the solar factor.

The rules have been made as simple as possible consistent with accuracy.

Document History

ISO 10292
January 1, 1994
Glass in Building - Calculation of Steady-State U Values (Thermal Transmittance) of Multiple Glazing
This International Standard applies to glass, coated glass and materials opaque in the far infrared wavelengths. It gives the fundamental rules for calculating the thermal transmittance, U I), in the...

References

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