AS 4440-2004

1-AS 4440-2004 INSTALLATION OF NAILPLATED TIMBER ROOF TRUSSES -
4-PREFACE
5-CONTENTS
7-SECTION 1 SCOPE AND GENERAL
7-1.1 SCOPE
7-1.2 APPLICATION
8-1.3 REFERENCED DOCUMENTS
8-1.4 USE OF ALTERNATIVE MATERIALS OR METHODS
8-1.5 DEFINITIONS
8-1.5.1 Approved
8-1.5.2 Approved specification
8-1.5.3 Boxed eaves
8-1.5.4 Camber
9-1.5.5 Eaves
9-1.5.6 Gable-end truss
9-1.5.7 Galvanized steel
9-1.5.8 Girder truss
9-1.5.9 Nailplates
9-1.5.10 Truss overhang
9-1.5.11 Pitching point
9-1.5.12 Raking eaves
9-1.5.13 Raking truss
9-1.5.14 Regulatory authority
9-1.5.15 Reinforced-head nails
9-1.5.16 Spacing
9-1.5.17 Truss span
9-1.5.18 Station
10-1.5.19 Steelbrace
10-1.5.20 Structural fascia
10-1.5.21 Timber truss
10-1.5.22 Truss engineer
10-1.5.23 Valley (saddle) truss
10-1.5.24 Verge overhang
10-1.5.25 Waling plate
13-1.6 LOADS
13-1.7 DOCUMENTATION AT APPROVAL STAGE AND DELIVERY
13-1.8 NAILS
14-SECTION 2 SUPPORTING STRUCTURES
14-2.1 GENERAL
14-2.2 WALLS
14-2.2.1 Loadbearing walls
14-2.2.2 Non-loadbearing walls
15-2.2.3 Fixing to top plates of non-loadbearing walls
17-SECTION 3 TRUSS INSTALLATION
17-3.1 TRUSS LAYOUT
17-3.2 STABILITY DURING INSTALLATION
17-3.3 TEMPORARY BRACING
18-3.4 INSTALLATION TOLERANCES
18-3.4.1 General
18-3.4.2 Bow
18-3.4.3 Plumb
19-3.4.4 Spacing
19-3.5 PLASTERBOARD FIXED DIRECTLY TO BOTTOM CHORDS
19-3.6 INTERMEDIATE CEILING JOISTS
19-3.7 TIE-DOWN REQUIREMENTS
19-3.8 MULTIPLE (MULTI-PLY) TRUSS
19-3.9 TRUSS MODIFICATION
20-3.10 REJECTION CRITERIA
20-3.11 TRANSPORT, STORAGE, LIFTING AND HANDLING
21-SECTION 4 ROOF BRACING
21-4.1 GENERAL
21-4.2 ROOF BATTENS
21-4.2.1 General
22-4.2.2 Intermediate and internal top chord ties
24-4.3 TOP CHORD BRACING
24-4.3.1 General
24-4.3.2 Steelbrace
24-4.3.3 Steelbrace for gable roof
31-4.3.4 Steelbrace for hip roof
33-4.3.5 Steelbrace for dual-pitched roof
34-4.3.6 Steelbrace for bell roof
34-4.3.7 Steelbrace for mono-pitched roof
35-4.3.8 Fixing
39-4.4 BOTTOM CHORD BRACING
39-4.4.1 General
39-4.4.2 Bottom chord lateral restraints
40-4.5 WEB BRACING
41-SECTION 5 TRUSS CONNECTION
41-5.1 GENERAL
41-5.2 HIP ENDS
41-5.2.1 Hip-end connection for low wind area (wind classification N1, N2, N3, OR C1)
44-5.2.2 Hip-end connection for high wind area (wind classification N4, C2 or C3)
47-5.3 GIRDER TRUSSES
47-5.3.1 Girder brackets (truss boots)
48-5.3.2 Waling plates for Dutch-hip girder
49-5.4 VALLEY (SADDLE) TRUSSES
49-5.4.1 Valley truss connection for wind classification N1, N2, N3 or C1
50-5.4.2 Valley truss connection for wind classification N4, C2, OR C3
51-SECTION 6 TRUSS OVERHANGS
51-6.1 STANDARD TRUSS-OVERHANGS
51-6.1.1 General
51-6.1.2 Raking eaves in hip corner
51-6.1.3 Boxed eaves
52-6.2 GABLE VERGE
52-6.2.1 Gable-end truss
53-6.2.2 Verge overhang
55-6.3 BOXED GABLE ENDS
55-6.4 VERANDAHS
55-6.5 PERGOLAS
56-APPENDIX A - DOCUMENTATION AT APPROVAL STAGE AND ON DELIVERY
56-A1 INTRODUCTION
56-A2 APPROVAL STAGE
56-A3 DELIVERY
56-A4 CHECK LIST
58-APPENDIX B - RECOMMENDED PRACTICE FOR TRUSS INSTALLATION
58-B1 INTRODUCTION
58-B2 CAMBERS
58-B3 FIXING OF CORNICE
58-B4 BEARING WIDTH
59-APPENDIX C - RECOMMENDATIONS FOR TEMPORARY BRACING
59-C1 GENERAL
60-C2 HIP OR DUTCH-HIP END ROOF
60-C3 GABLE-END ROOF
62-APPENDIX D - INTERMEDIATE CEILING JOISTS AND HANGERS
62-D1 GENERAL
62-D2 SIZE
62-D3 CONNECTION
63-APPENDIX E - TRANSPORT, STORAGE, LIFTING AND HANDLING OF TRUSSES
63-E1 GENERAL
63-E2 TRANSPORT
63-E3 STORAGE
63-E4 LIFTING AND HANDLING
65-APPENDIX F - TYPICAL SPECIFICATION FOR, AND EXAMPLE OF, A STEELBRACE
66-APPENDIX G - FIXING DETAILS FOR TYPICAL GIRDER BRACKETS (TRUSS BOOTS)