Alcance
This document provides an overview of the design principles for the building envelope in order to achieve a high quality and energy efficient built environment. The design principles include:— thermal performance;— daylight and visual environment;— air quality;— provisions of natural and mechanical ventilation;— air barrier (airtightness);— watertightness;— moisture proof;— soundproofing;— sustainability and integration with technical building systems and controls.This document is applicable to new buildings and the retrofit of existing buildings.