ISO/TR 5863:2025

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.