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Building Industry QA and Benchmarks
News Release from: BSI British Standards | Subject: BS 5268-3:2005 Structural use of timber
Edited by the Buildingtalk Editorial
Team on 14 December 2005
Structural use of timber for roofs
BSI Business Information has revised the industry-wide code: BS 5268-3:2005 Structural use of timber.
The use of structural timbers in any construction is of vital importance The correct use of timbers for roofing can help keeping buildings free from damp and the elements
This article was originally published on Buildingtalk on 9 Mar 2005 at 8.00am (UK)
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BSI Business Information has revised this industry-wide code.
BS 5268-3:2005 Structural use of timber.
Code of practice for trussed rafter roofs.This standard covers the design, fabrication and use of trussed rafters for roofs.
For the purposes of the standard trussed rafters are assumed to be made from timber members of the same thickness fastened together by metal plate fasteners or plywood gussets.
Trussed rafters usually span between external load-bearing walls without the need for intermediate supports from internal walls, lintels or purloins.
This standard provides recommendations on the strength grades of timber used in the fabrication of rafters and other critical design issues.
Guidance on the handling, storage and installation of fabricated rafters is given.
Information to be exchanged between the trussed rafter designer and the building designer is also listed.
Guidance is provided on:.
* Structural analysis methods.
* Engineering design criteria.
* Design by testing.
* Truss handling, storage and erection.
* Standard bracing arrangements for domestic scale roofs.
* Production requirements for truss manufacture.
* Performance requirements for roof bracing.
Based on extensive tests, the maximum spans for two common truss configurations for a range of member sizes and roof pitches are given.
ISBN 0 580 47340 6.
Price GBP128*, GBP64 BSI Subscribing Members.
More for structural timber.
The BS 5268 series covers all the factors that might impact on structural timber throughout its lifetime.
It includes preservation, fire resistance, calculations for span tables as well as permissible stress design and workmanship.
Full listing of publications in this series can be found at www.bsi-global.com/bs5268 www.bsi-global.com/5268series.
*PandP GBP4.17 UK (inclusive of VAT), GBP5.83 Overseas (+ VAT if applicable).
PandP is free to BSI Subscribing Members.
Pre-payment is required from non-Members.
All prices, content and publishing dates may be subject to change.
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