1 Scope
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:
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— thermal performance;
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— daylight and visual environment;
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— air quality;
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— provisions of natural and mechanical ventilation;
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— air barrier (airtightness);
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— watertightness;
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— moisture proof;
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— soundproofing;
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— sustainability and integration with technical building systems and controls.
This document is applicable to new buildings and the retrofit of existing buildings.