ISO 6946:2017 PDF

Scope: 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.

ISO 6946:2017 Referenced Document

ISO 10211:2007 Thermal bridges in building construction - Heat flows and surface temperatures - Detailed calculations
ISO 10456:2007 Building materials and products - Hygrothermal properties - Tabulated design values and procedures for determining declared and design thermal values
ISO 13789:2007 Thermal performance of buildings - Transmission and ventilation heat transfer coefficients - Calculation method
ISO 52000-1:2017 Energy performance of buildings - Overarching EPB assessment - Part 1: General framework and procedures
ISO 7345:1987 Thermal insulation; Physical quantities and definitions
ISO/TR 52000-2:2017 Energy performance of buildings - Overarching EPB assessment - Part 2: Explanation and justification of ISO 52000-1
ISO/TR 52019-2:2017 Energy performance of buildings - Hygrothermal performance of building components and building elements - Part 2: Explanation and justification

2017 ISO 6946:2017 Building components and building elements - Thermal resistance and thermal transmittance - Calculation methods
2007 ISO 6946:2007 Building components and building elements - Thermal resistance and thermal transmittance - Calculation method
2003 ISO 6946:1996/Amd 1:2003 Building components and building elements - Thermal resistance and thermal transmittance - Calculation method; Amendment 1
1996 ISO 6946:1996 Building components and building elements - Thermal resistance and thermal transmittance - Calculation method