ISO/TR 5863:2025 PDF

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.