Other tools NBS offers a range of tools for specification and collaboration National BIM Library The most trusted BIM Library in the UK, certified to the internationally-recognised NBS BIM Object Standard Uniclass 2015 A dynamic and unified classification system for the construction industry covering all sectors Construction Information Service (CIS) A comprehensive online collection of construction related standards, regulations, technical advice and articles Plug-ins NBS provides a range of tools to help connect your CAD model to your specification model
Platform Resources Support Events About TheNBS.com Manufacturers Uniclass 2015 Get in touch

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom

Guidance Document 20 Guidance document on serviceability states and deflection criteria

Publication Year

2015

Document Status

Withdrawn

Abstract

Give guidance on the appropriate and workable serviceability states and deflection criteria that can affect roof or walls. Also provides guidance on secondary steelwork installation tolerances.

Document History

Superseded by the May 2017 update. April 2015 edition. GD 20.

Publisher Information

Metal Cladding and Roofing Manufacturers Association

The Metal Cladding and Roofing Manufacturers Association represents manufacturers in the metal roofing and cladding industry. They seek to develop a better understanding amongst specifiers and users of the most effective use of metal building products, components and systems.

106 Ruskin Avenue
Rogerstone
Newport
MCRMA
UK

Website: http://www.mcrma.co.uk/
Email: info@mcrma.co.uk
Tel: +44 (0)1633 895633