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  • BS 5268-3(2006) : 2006

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    STRUCTURAL USE OF TIMBER - PART 3: CODE OF PRACTICE FOR TRUSSED RAFTER ROOFS

    Available format(s):  Hardcopy, PDF

    Superseded date:  30-03-2010

    Language(s):  English

    Published date:  01-01-2006

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Committees responsible
    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms, definitions and symbols
    4 Assessment of structural adequacy
    5 Materials
       5.1 Timber
       5.2 Plywood
       5.3 Fasteners
       5.4 Adhesives
       5.5 Preservative treatment
    6 Trussed rafter design
       6.1 General
       6.2 Limitations
       6.3 Permissible stresses, fastener loads and nail
            spacing
       6.4 Loads
       6.5 Method of design
    7 Roof design
       7.1 Design responsibilities
       7.2 Overall stability
       7.3 Wall plates
       7.4 Plasterboard ceilings
       7.5 Water tanks
       7.6 Hatch, chimney and other openings
       7.7 Roof environment
    8 Fabrication
       8.1 General
       8.2 Assembly
       8.3 Marking
    9 Handling, storage and erection
       9.1 Handling and transportation
       9.2 Storage
       9.3 Erection
       9.4 Modification and repairs
    10 Load testing
       10.1 General
       10.2 Testing authority
       10.3 Information required by the testing authority
       10.4 Quality and fabrication of trussed rafters for test
       10.5 Tests on similar configurations
       10.6 Acceptance
       10.7 Use of tested trussed rafters
    11 Exchange of information
       11.1 Information required by the trussed rafter designer
            from the building designer
       11.2 Information to be provided by the trussed rafter
            designer to the building designer
    Annex A (normative) - Roof bracing
    Annex B (normative) - Permissible spans
    Bibliography

    Abstract - (Show below) - (Hide below)

    Gives guidance on the design, fabrication and use of trussed rafters for roofs in service classes 1 and 2 as defined in 3.1 and 3.2. Guidance is provided on structural analysis methods, engineering design criteria and design by testing. Performance requirements for roof bracing are given, together with standard bracing arrangements for domestic scale roofs. Production requirements are also given for truss manufacture, along with guidance on their handling, storage and erection. Maximum spans for two common truss configurations for a range of member sizes and roof pitches are given, based on extensive tests.

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    Committee B/525/5
    Development Note Supersedes BS 5268-3(1998) & 05/30130598 DC (07/2006)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 1995-1-2 NA : 2004 UK NATIONAL ANNEX TO EUROCODE 5: DESIGN OF TIMBER STRUCTURES - PART 1-2: GENERAL - STRUCTURAL FIRE DESIGN
    BS 8103-3(2009) : 2009 STRUCTURAL DESIGN OF LOW-RISE BUILDINGS - PART 3: CODE OF PRACTICE FOR TIMBER FLOORS AND ROOFS FOR HOUSING
    BS 5268-2(2002) : 2002 STRUCTURAL USE OF TIMBER - PART 2: CODE OF PRACTICE FOR PERMISSIBLE STRESS DESIGN, MATERIALS AND WORKMANSHIP
    BS 5268-7.6(1990) : 1990 STRUCTURAL USE OF TIMBER - PART 7: RECOMMENDATION FOR THE CALCULATION BASIS FOR SPAN TABLES - SECTION 7.6: PURLINS SUPPORTING RAFTERS
    BS 5268-7.2(1989) : 1989 STRUCTURAL USE OF TIMBER - PART 7: RECOMMENDATIONS FOR THE CALCULATION BASIS FOR SPAN TABLES - SECTION 7.2 JOISTS FOR FLAT ROOFS
    BS 5268-6.1(1996) : 1996 STRUCTURAL USE OF TIMBER - PART 6: CODE OF PRACTICE FOR TIMBER FRAME WALLS - SECTION 6.1: DWELLINGS NOT EXCEEDING SEVEN STOREYS
    BS 5268-7.7(1990) : 1990 STRUCTURAL USE OF TIMBER - PART 7: RECOMMENDATIONS FOR THE CALCULATION BASIS FOR SPAN TABLES - SECTION 7.7 PURLINS SUPPORTING SHEETING OR DECKING
    BS 8558(2015) : 2015 GUIDE TO THE DESIGN, INSTALLATION, TESTING AND MAINTENANCE OF SERVICES SUPPLYING WATER FOR DOMESTIC USE WITHIN BUILDINGS AND THEIR CURTILAGES - COMPLEMENTARY GUIDANCE TO BS EN 806
    I.S. 193:2006 TIMBER TRUSSES FOR ROOFS
    08/30140202 DC : 0 BS 8103-3 - STRUCTURAL DESIGN OF LOW-RISE BUILDINGS - PART 3: CODE OF PRACTICE FOR TIMBER FLOORS AND ROOFS FOR HOUSING
    BS 8558:2015 GUIDE TO THE DESIGN, INSTALLATION, TESTING AND MAINTENANCE OF SERVICES SUPPLYING WATER FOR DOMESTIC USE WITHIN BUILDINGS AND THEIR CURTILAGES - COMPLEMENTARY GUIDANCE TO BS EN 806
    BS 5268-6.1:1996 (published 2007-11) Structural use of timber Code of practice for timber frame walls - Dwellings not exceeding seven storeys

    Standards Referencing This Book - (Show below) - (Hide below)

    BS EN 10326 : 2004 CONTINUOUSLY HOT-DIP COATED STRIP AND SHEET OF STRUCTURAL STEELS - TECHNICAL DELIVERY CONDITIONS
    BS 5268-2(2002) : 2002 STRUCTURAL USE OF TIMBER - PART 2: CODE OF PRACTICE FOR PERMISSIBLE STRESS DESIGN, MATERIALS AND WORKMANSHIP
    BS 8417(2003) : 2003 PRESERVATION OF TIMBER - RECOMMENDATIONS
    BS 6399-3(1988) : 1988 LOADING FOR BUILDINGS - PART 3: CODE OF PRACTICE FOR IMPOSED ROOF LOADS
    BS 5268-5(1989) : 1989 STRUCTURAL USE OF TIMBER - CODE OF PRACTICE FOR THE PRESERVATIVE TREATMENT OF STRUCTURAL TIMBER
    BS 4978(1996) : 1996 SPECIFICATION FOR VISUAL STRENGTH GRADING OF SOFTWOOD
    BS EN 10088-2:2014 (published 2014-10) Stainless steels Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
    BS 5250(2002) : 2002 CODE OF PRACTICE FOR CONTROL OF CONDENSATION IN BUILDINGS
    BS EN 595:1995 (published 1995-10) Timber structures. Test methods. Test of trusses for the determination of strength and deformation behaviour
    BS EN 380:1993 (published 1993-11) Timber structures. Test methods. General principles for static load testing
    BS EN 14250 : 2010 TIMBER STRUCTURES - PRODUCT REQUIREMENTS FOR PREFABRICATED STRUCTURAL MEMBERS ASSEMBLED WITH PUNCHED METAL PLATE FASTENERS
    BS 6399-2(1997) : 1997 LOADING FOR BUILDINGS - PART 2: CODE OF PRACTICE FOR WIND LOADS
    BS EN 385 : 2001 FINGER JOINTED STRUCTURAL TIMBER - PERFORMANCE REQUIREMENTS AND MINIMUM PRODUCTION REQUIREMENTS
    BS 6399-1(1996) : 1996 LOADING FOR BUILDINGS - PART 1: CODE OF PRACTICE FOR DEAD AND IMPOSED LOADS
    BS 1230-1(1985) : 1985 GYPSUM PLASTERBOARD - SPECIFICATION FOR PLASTERBOARD EXCLUDING MATERIALS SUBMITTED TO SECONDARY OPERATIONS
    BS EN 301:2013 ADHESIVES, PHENOLIC AND AMINOPLASTIC, FOR LOAD-BEARING TIMBER STRUCTURES - CLASSIFICATION AND PERFORMANCE REQUIREMENTS
    BS 6446(1997) : 1997 SPECIFICATION FOR MANUFACTURE OF GLUED STRUCTURAL COMPONENTS OF TIMBER AND WOOD BASED PANELS
    BS EN 14081-1:2016 TIMBER STRUCTURES - STRENGTH GRADED STRUCTURAL TIMBER WITH RECTANGULAR CROSS SECTION - PART 1: GENERAL REQUIREMENTS
    BS 5534(2003) : 2003 CODE OF PRACTICE FOR SLATING AND TILING (INCLUDING SHINGLES)
    BS 8212(1995) : 1995 CODE OF PRACTICE FOR DRY LINING AND PARTITIONING USING GYPSUM PLASTERBOARD
    BS EN 336:2013 STRUCTURAL TIMBER - SIZES, PERMITTED DEVIATIONS
    BS 8103-1(1995) : 1995 STRUCTURAL DESIGN OF LOW-RISE BUILDINGS - CODE OF PRACTICE FOR STABILITY, SITE INVESTIGATION, FOUNDATIONS AND GROUND FLOOR SLABS FOR HOUSING
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