External wall insulation incorporating drained cavities

Publication Year

2025

Document Status

Current

Abstract

Provides detailed guidance on the selection and installation of system components such as insulation materials, adhesives, fixings, and finishes. The guide covers both new build and retrofit applications, emphasising the importance of proper planning, accredited installers, and adherence to technical standards to ensure high-quality, durable, and thermally efficient installations. It also addresses maintenance, condensation and damp prevention, and includes detailed drawings and references to support correct detailing and compliance.

Document History

Supersedes Best practice guide: external wall insulation 2015.

Publisher Information