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BSI BS EN ISO 6946:2017

Building components and building elements. Thermal resistance and thermal transmittance. Calculation method
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BSI BS EN ISO 6946:2017

Building components and building elements. Thermal resistance and thermal transmittance. Calculation method

PUBLISH DATE 2022
PAGES 56
BSI BS EN ISO 6946:2017

This document provides the method of calculation of the thermal resistance and thermal transmittance of building components and building elements, excluding doors, windows and other glazed units, curtain walling, components which involve heat transfer to the ground, and components through which air is designed to permeate.

The calculation method is based on the appropriate design thermal conductivities or design thermal resistances of the materials and products for the application concerned.

The method applies to components and elements consisting of thermally homogeneous layers (which can include air layers).

This document also provides an approximate method that can be used for elements containing inhomogeneous layers, including the effect of metal fasteners, by means of a correction term given in Annex F. Other cases where insulation is bridged by metal are outside the scope of this document.

NOTE Table 1 in the Introduction shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in ISO 52000?1 .

SDO BSI: British Standards Institution
Document Number ISO 6946
Publication Date Sept. 12, 2022
Language en - English
Page Count 56
Revision Level
Supercedes
Committee B/540/8
Publish Date Document Id Type View
Aug. 16, 2017 BS EN ISO 6946:2017 Revision
Sept. 30, 2008 BS EN ISO 6946:2007 Revision
Sept. 12, 2022 BS EN ISO 6946:2017 Consolidated
Aug. 28, 2003 BS EN ISO 6946:1997 Consolidated