- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 29 Oct 2017
External fire performance of roofs: A guide to test methods and classification
External fire performance of roofs: A guide to test methods and classification (DG 528) was written by S Colwell and T Baker and published by BRE on 28 February 2013.
The roof is a key element in the overall performance of the building envelope. As well as being weathertight, structurally stable and durable, roof designs must also meet the fire performance characteristics set out in the building regulations.
This BRE digest was published following the introduction of European fire test methods for determining the external fire performance of roof systems, and CE marking under the Construction Products Regulation (CPR) which require that manufacturers of external waterproof coverings declare a fire performance classification for their products.
The digest explains the test methods for roofs, and how test data is used to classify external fire performance. It describes the limitations of the classification system, and highlights how important it is that specifiers correctly interpret information presented to them.
It is intended to help manufacturers provide end users with the information they need to specify the fire performance of roofing systems and explains how fire performance classifications relate to the guidance in Approved Document B.
The contents of the digest are:
- CE marking and roofing product standards.
- Classification systems.
- Approved Document B and how the classification systems are used.
- Third-party approvals.
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
Brick slip soffit systems and intricate brick features.
ICE event includes comments from Welsh Government Minister Julie James.
How to write them and what they should include.
Designing Buildings Wiki becomes the world's first website to adopt the new knowledge standard.
Assessing the most beneficial design elements.
Exploring different types of vinyl flooring.
New Government task force will build beauty into reformed planning process.
Five outstanding aspects of the profession.
The seismic strengthening of historic churches.
Results show guarded optimism and payment concerns.
Noteworthy navigable aqueducts.
Technology is making remote work a reality.