Technical specification for boundary elevations

Technical Specification

British Constructional Steelwork Association, 2025
Technical specification for boundary elevations Download document

Document Status

Current

Supplement

Core Supplement

Series

Technical Specification

Abstract

Provides a technical specification for the design and construction of fire-resistant boundary elevations in single-storey steel structures, focusing on preventing the spread of fire to neighboring properties. It deals requirements for the primary frame, secondary steelwork, and external wall cladding, emphasizing engineered solutions where fire-resistant cladding is supported by protected structural members. The specification outlines design principles, relevant standards, and the responsibilities of contractors and manufacturers to ensure compliance and effective fire protection.

History

Presented in: 1st edition. Published on: February 2025. Came into force: 1 July 2025.

Subjects

  • Building structure
  • Building systems/frame
  • Steel building systems/frame
  • Steel protection

Publisher History

The British Constructional Steelwork Association is the national organisation for the constructional steelwork industry. Publications cover technical, commercial, contractual, quality assurance and health & safety matters.

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.