DIN EN ISO 6946:2018 建筑部件与构件.热阻和传热系数.计算方法(ISO 6946-2017);德文版本EN ISO 6946-2017
Building components and building elements - Thermal resistance and thermal transmittance - Calculation methods (ISO 6946:2017); German version 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.