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    I.S. EN ISO 6946:2017&LC:2021

    Current The latest, up-to-date edition.

    Building components and building elements - Thermal resistance and thermal transmittance - Calculation methods

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  14-01-2022

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols and subscripts
    5 Description of the method
    6 Calculation of thermal transmittance and thermal resistance
    Annex A (normative) Input and method selection data sheet — Template
    Annex B (informative) Input and method selection data sheet — Default choices
    Annex C (normative) Surface resistances
    Annex D (normative) Thermal resistance of airspaces
    Annex E (normative) Calculation of the thermal transmittance of components with tapered layers
    Annex F (normative) Correction to thermal transmittance
    Bibliography

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee ISO/TC 163
    Document Type Standard
    Product Note The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
    Publisher National Standards Authority of Ireland
    Status Current
    Supersedes
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