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
Download from CIS *
* A valid subscription to The Construction Information Service is required to download this document.

Click here to find out how to access this document

Ductwork Specification DW/144 Specification for sheet metal ductwork low, medium and high pressure/velocity air systems. Second edition (Withdrawn)

Publication Year

2013

Document Status

Withdrawn, cited in regs

Abstract

Divided into eight main parts; scope; technical information to be provided by the designer; rectangular ducts; circular ducts; flat oval ducts; hangers and supports; ductwork related information and; appendices. Now includes expanded content related to: supports and hangers, smoke and fire dampers, external ductwork, internal duct linings, thermal insulation, air terminal units, fire-resisting ductwork and ductwork for swimming pools.

Document History

Superseded by DW/144 Specification for sheet metal ductwork. 3rd edition (BESA, 2016). Supersedes DW/144 Specification for sheet metal ductwork: low, medium and high pressure/velocity air systems (Appendix M revision 2002) (HVCA, 1998). DW/144 incorporates BES publication: Acceptance scheme for new products: rectangular cross joint classification (DW/TM1), which establishes performance ratings for both air leakage and deflection for cross-joints.

ISBN

9780903783644

Publisher Information

Building and Engineering Services Association

Now known as Building Engineering Services Association (BESA). Building and Engineering Services Association was the UK's leading professional body for building engineering services contractors. Founded in 1904, it added value to members' businesses by providing quality services, promoting excellence and shaping the commercial environment through representation and leadership. Represented the interests of firms active in the design, installation, commissioning and maintenance of heating, ventilating, air conditioning and refrigeration (hvacr) products and equipment. Formerly known as Heating and Ventilating Contractors' Association (HVCA).

Rotherwick House
3 Thomas More Street
St Katharine’s and Wapping
London
BES
UK