AS 2424-1991

1 - AS 2424-1991 PLASTICS BUILDING SHEETS - GENERAL INSTALLATION REQUIREMENTS AND DESIGN OF ROOFING SYSTEMS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
7 - SECTION 2 GENERAL REQUIREMENTS
7 - 2.1 SCOPE OF SECTION
7 - 2.2 MATERIAL
7 - 2.3 TRANSPORT, HANDLING AND STORAGE
7 - 2.4 SAFETY PRECAUTIONS
7 - 2.4.1 General precautions
7 - 2.4.2 Fire precautions
7 - 2.4.3 Safety mesh
7 - 2.4.3.1 Provision of safety mesh
7 - 2.4.3.2 General
7 - 2.4.3.3 Loading
7 - 2.4.3.4 Deemed to comply
8 - 2.4.3.5 Position and fixing
8 - 2.4.3.6 Corrosive atmosphere
8 - 2.4.4 Walking and standing on roofs
8 - 2.4.4.1 General
8 - 2.4.4.2 Walkways
8 - 2.4.4.3 Notices
9 - SECTION 3 DESIGN OF PLASTICS SHEET ROOFING
9 - 3.1 SCOPE OF SECTION
9 - 3.2 AGGRESSIVE ENVIRONMENTS
9 - 3.3 LOADINGS
9 - 3.3.1 Wind forces
9 - 3.3.2 Loadings during construction
9 - 3.3.3 Bracing
9 - 3.4 SUPPORTING STRUCTURE
9 - 3.5 RAFTERS AND BATTENS
9 - 3.5.1 Alignment
9 - 3.5.2 Width and depth
9 - 3.5.3 Rafter spacing
9 - 3.6 FASTENERS
10 - SECTION 4 INSTALLATION
10 - 4.1 SCOPE OF SECTION
10 - 4.2 GENERAL PROVISIONS
10 - 4.2.1 Inspection
10 - 4.2.2 Cutting of sheets
10 - 4.2.3 Supports at hips and valleys
10 - 4.2.4 End laps - Roofs
10 - 4.2.5 End laps - Walls
10 - 4.2.6 Side laps - Roofs
10 - 4.2.7 Side laps - Walls
10 - 4.2.8 Projections through sheeting
10 - 4.2.9 Fastening procedure
10 - 4.2.10 Fastener types
11 - 4.2.11 Washers
11 - 4.3 INSTALLATION OVER SAFETY MESH
11 - 4.4 FASTENER HOLES
12 - SECTION 5 TESTING OF PLASTICS SHEET ROOFING
12 - 5.1 APPLICABILITY OF TESTS
12 - 5.2 RESISTANCE TO WIND FORCES
12 - 5.2.1 General
12 - 5.2.2 Sheeting used in cyclonic areas
12 - 5.2.2.1 General
12 - 5.2.2.2 Evaluation of test results
12 - 5.3 RESISTANCE TO IMPACT
12 - 5.3.1 General
12 - 5.3.2 Assessment
13 - APPENDIX A - SAFETY MESH - LOAD TEST
13 - A1 SCOPE
13 - A2 PRINCIPLE
13 - A3 APPARATUS
13 - A3.1 Test frame
13 - A3.2 Test loads
13 - A3.2.1 Dynamic
13 - A3.2.2 Static
13 - A4 TEST SPECIMEN
13 - A5 PROCEDURE
13 - A6 REPORT
14 - APPENDIX B - DETERMINATION OF RESISTANCE OF PLASTICS ROOFING TO CYCLONIC WIND FORCES
14 - B1 SCOPE
14 - B2 PRINCIPLE
14 - B3 APPARATUS
14 - B3.1 General
14 - B3.2 Modelling
14 - B3.3 Loading systems
14 - B4 TEST SPECIMENS
15 - B5 PROCEDURE
15 - B6 TEST REPORT
16 - APPENDIX C - RESISTANCE TO IMPACT (SANDBAG) TEST
16 - C1 SCOPE
16 - C2 PRINCIPLE
16 - C3 APPARATUS
16 - C3.1 Sandbag
16 - C3.2 Pulley
16 - C3.3 Measuring stick
16 - C4 TEST SPECIMEN
16 - C5 PROCEDURE
16 - C6 REPORT

Establishes procedures for the installation of plastics building sheets for walls and roofs and for the design of plastics roofing systems.

This Standard sets out procedures for the installation of plastics building sheets for walls and roofs and for the design of plastics roofing systems.The Standard is primarily intended to apply to the use of plastics building sheets complying with AS 2376, Parts 1 and 2.NOTES:1 The sheets do not contribute to the structural or load-bearing capacity of the structure and due allowance should be made to the surrounding structure to compensate for the opening areas. For applications where structural design requirements must be satisfied, reference should be made to the design and testing provisions of AS 1562 for roofing without transverse joints.2 For use of the sheets in abnormal environmental conditions, the advice of the manufacturer should be sought.

First published as AS 2424-1981.
Second edition 1991.