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Guide to class 0 and class 1: As defined in UK Building Regulations

Technical Guidance Document 005

Guide to class 0 and class 1: As defined in UK Building Regulations

Document Status



Core Supplement


Technical Guidance Document


Defines and clarifies use of Class 0 and Class 1 products to comply with UK Building regulations requirements. Looking at surface spread of flame, fire propagation and quality assurance aspects. Also offers some cautionary notes relating to some factors that can affect test performances.


Replaces June 2008 reprint.




Publisher History

Formed in 1975, the Association for Specialist Fire Protection currently represents the major U.K. based specialist manufacturers and installers of structural passive fire protection systems. They produce technical information to ensure built in fire protection in buildings.



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.


IHS is a leading global source of critical information and insight for customers in a broad range of industries. Our customer product and service solutions span four major areas of information: energy, product lifecycle management, environmental and security. By focusing on our customers first, we deliver data and expertise that enable innovative and successful decision-making. Customers range from governments and multinational companies to smaller companies and technical professionals in more than 180 countries. IHS has been in business since 1959 and employs more than 3,500 people in 35 locations around the world.

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