Handbook
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SA HB 39:2015
[Current]Installation code for metal roof and wall cladding
SA HB 39 2015 provides information and guidelines on the selection, performance and installation of metal roofing and wall cladding. The measures contained will provide a weatherproof exterior and ensure that all rainwater is directed to the stormwater drainage system. Also known as installation roofing code.
Published: 16/07/2015
Pages: 119
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 General
1.1 Scope
1.2 Referenced documents
1.3 Terms and definitions
2 Material selection
2.1 Environmental effects
2.2 Metal thickness
2.3 Durability of steel
2.4 Coating mass
2.5 Dissimilar metals — Sacrificial protection
2.6 Inert catchment
2.7 Cut edge protection
2.7.1 General
2.7.2 Cutting sheet
2.8 Marking of roofing materials
2.9 Silicone rubber sealant selection and application
2.10 Synthetic rubber flashings
2.11 Material composition of compounds
2.11.1 Temperature range
2.11.2 EPDM for normal conditions
2.11.3 Silicone for special conditions
2.11.4 Carbon black and corrosion
3 Maintenance and care
3.1 Site storage
3.2 Walking on roofs
3.3 Protection of heavy traffic areas
3.4 Temporary walkways
3.5 Cutting sheets on site
3.6 Cleaning up
3.7 Unwashed areas
3.8 Surface damage
3.9 Strippable coatings
3.10 Roof noise — Rain and hail
3.11 Thermal stress
3.12 Sunscreen and prepainted metal sheets
4 Roof safety
4.1 Eye and skin protection
4.2 Fall protection
4.3 Work on existing roofs
4.3.1 General
4.3.2 Fragile roofs
4.3.3 General handling
4.3.4 On-site storage
4.3.5 Lifting to roof
4.3.6 Roof traffic
4.4 Safety mesh
4.4.1 General
4.4.2 Fall protection
4.4.3 Fixing methods
4.4.4 Installation methods
4.4.5 Mesh requirements
4.5 Harnesses
4.6 Use of ladders
4.7 Access ladders and access platforms
4.8 Single and extension ladders
5 Roof drainage
5.1 Scope of section
5 Materials
5.3 Box gutters up to 600 mm
5.3.1 Overflow provision and size
5.3.2 Gutter installation
5.3.3 Outlets
5.3.4 Gutter support systems
5.3.4.1 General
5.3.4.2 Position and spacing
5.3.5 Workmanship
5.4 Valley gutters
5.5 Soaker gutters
5.6 Eaves gutters
5.7 Downpipes, sumps and rainhead
5.7.1 General
5.7.2 Sumps
5.7.3 Rainheads
5.7.4 Eaves gutter outlets
5.7.5 Back outlets
5.7.6 Downpipes
5.7.7 Spreaders
5.8 Jointing methods for other than aluminium
5.8.1 General
5.8.2 Soldered joints
5.8.2.1 Preparation of joint surfaces
5.8.2.2 Fluxing for soldering
5.8.2.3 Soft soldering
5.8.2.4 Cleaning joints after soldering
5.8.3 Fastening and sealing with sealants
5.8.4 Fastening and sealing with rivets for steel sheets
5.8.5 Fastening and sealing with rivets for stainless steel
5.8.6 Fastening with spot welds
5.8.7 Fastening and sealing with welded joints
5.8.8 Fastening with aluminium and zinc-alloy diecasts
5.8.9 Sealing PVC downpipes
5.8.10 Performance of joints
5.9 Jointing methods for aluminium rainwater goods and accessories
5.9.1 Mechanically fastened lap joints
5.9.2 Brazed joints
5.9 Soldered joints
5.9 Welded joints
5.9.5 Jointing with aluminium and zinc-alloy castings
5.10 Fixing and joining roof flashings and cappings
5.11 Rainfall intensities
5.11.1 General
5.11.2 Average recurrence interval (ARI)
6 Thermal and condensation control
6.1 Scope of section
6.2 Insulation of steel roofing
6.3 Condensation
6.4 Resistance to heat transfer (R-values)
7 Roof sheeting
7.1 Typical profiles
7.1.1 General
7.1.2 Insulated roof panels
7.2 Roof sheet span information
7.3 Wind forces on roofs
7.4 Cyclone areas
7.4.1 Testing requirements
7.4.2 Installation
7.5 Standards and performance tests
7.6 Roof slope and pitch
7.7 Thermal expansion/contraction
7.8 Roof loading and setting out
7.8.1 Roof loading
7.8.2 Setting out
7.8.3 Checklists
7.9 Pierce-fastened decks
7.10 Concealed-fastened decks
7.11 Measuring up (estimating quantities)
7.12 Fixing clips and fasteners
7.12.1 Fixings
7.12.2 Installation
7.13 Rib end stops
7.14 Filler strips
7.15 End lapping
7.16 Bull nosing and curving
7.16.1 General
7.16.2 Crimp curving of steel and aluminium
7.17 Spring-curved sheeting
7.17.1 Spring-curved ridges
7.17.2 Sprung concave roofs
7.17.3 Arched roofing
7.18 Capped, bent continuous sheeting
7.18.1 Gable roofs
7.18.2 A-frame
7.19 Mansard roofs
7.20 Wall cladding
8 Roof flashings and cappings
8.1 General
8.1.1 Material compatibility
8.1.2 Minimum thickness
8.1.3 Expansion provision
8.1.4 Sizes and covers
8.2 Fastening
8.3 Special folds
8.4 Wall and step flashings
8.5 Lead flashings
8.6 Penetrations
8.6.1 Collar flashings
8.6.2 Large penetrations
8.7 All other flashings and cappings
9 Roof lights
9.1 Translucent roof materials
9.2 Installation procedure
9.2.1 Inspection
9.2.2 Laying on roofs
9.2.3 Fastening
9.2.3.1 Main fasteners
9.2.3.2 Side lap fastening
9.2.3.3 Fastening holes
9.2.3.4 End lapping
9.2.3.5 End laps
9.2.3.6 Profile closers
9.2.3.7 Fasteners
9.2.4 General handling
9.2.4.1 On-site storage
9.2.4.2 Lifting to roof
9.2.4.3 Roof traffic
10 Ceiling components and roof extras
10.1 Scope of section
10.2 Loadbearing and non-loadbearing support systems
10.3 EXTERNAL APPLICATIONS
Appendix A
A1 General
A2 Atmospheric classifications (Applicable to steel)
Appendix B
B1 Introduction
B1.1 Sandwich panels
B2 Materials
B2.1 The insulation core
B3 Panel performance
B3.1 Structural
B3.2 Thermal
B3.2.1 Thermal properties
B3.3 Fire
B3.3.1 Fire rating
B3.3.2 Fire resistance
B3.3.3 Fire resistance construction
B3.4 Supporting structure
B3.4.1 Support
B3.4.2 Tolerance
B3.4.3 Alignment
B3.4.4 Mid-roof jointing/lapping
B3.4.5 Bracing
B3.4.6 Rigidity
B3.4.7 Span
B4 Roof applications
B4.1 General
B.4.1.1 Length
B4.1.2 Pitch
B4.1.3 End lap jointing
B4.1.4 Side lapping
B4.1.5 Fixing
B4.1.6 Surface protection
B4.1.7 Laying sequence
B5 Wall cladding
B5.1 General
B5.1.1 Cladding
B5.2 Finishes for wall cladding
B5.2.1 Coatings
B5.2.2 Coating protection
B5.3 Purpose-made wall panels
B5.3.1 Strength
B5.3.2 Length
B5.3.3 Profiles
B5.3.4 Ancillaries
B6 Site work and handling
B6.1 Site storage
B6.2 Site handling
B6.2.1 Handling
B6.2.2 Lifting
B6.2.3 Surface protection
B6.2.4 Mechanical lifting
B6.3 Health and safety
B6.3.1 Safety mesh
B6.3.2 Personal protection
B6.3.3 Installation safety
B6.3.4 Roof lights
B6.3.5 Lap support
B6.3.6 Roof safety considerations
B6.4 Fixing
B6.4.1 General
B6.4.2 Set out
B6.4.3 Over-tightening
B6.4.4 Lap stitching
B6.4.5 Humidity
B6.4.6 Protective film
B6.4.7 Rib/crest fixing
B6.5 Repairs to damaged panels
B6.5.1 Surface damage
B6.5.2 Sheet damage
B6.5.3 Surface scratches
B6.6 Inspection and maintenance
Cited references in this standard
[Current]
Continuous hot-dip metallic coated steel sheet and strip — Coatings of zinc and zinc alloyed with aluminium and magnesium
[Current]
Fixed platforms, walkways, stairways and ladders - Design, construction and installation
[Current]
Self-drilling screws for the building and construction industries, Part 1: General requirements and mechanical properties
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