External wall insulation specification for weathering and thermal bridge control guide

Technical Guide 06

Insulated Render and Cladding Association, 2024
External wall insulation specification for weathering and thermal bridge control guide Download document

Document Status

Current

Supplement

Core Supplement

Series

Technical Guide

Abstract

Provides guidance for the design and installation of external wall insulation (EWI) systems, focusing on effective weathering and thermal bridge control to ensure long-term building performance. It outlines best practices for robust terminations at rooflines, eaves, verges, and other critical interfaces, and details risk assessments, material specifications, and installation procedures to minimise heat loss, prevent water ingress, and avoid issues such as dampness and mould.

History

April 2024 edition with August 2024 update including roofline closure details.

Subjects

  • Coverings and surface finishes
  • Cladding/covering
  • Panel/slab cladding, external insulating cladding
  • Special subject areas
  • Environmental issues/energy
  • Weather/Climate

Publisher History

The Insulated Render and Cladding Association is the trade association for the external wall insulation industry in the UK and Europe, representing the system designers, specialist installers and component suppliers.

Information

NBS

NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

Accuris

We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.