AS 1639-1990

1 - AS 1639-1990 THE DESIGN AND INSTALLATION OF CORRUGATED FIBRE-REINFORCED CEMENT ROOFING AND WALL CLADDING
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 REFERENCED DOCUMENTS.
6 - 1.3 DEFINITIONS.
6 - 1.3.1 Preformed sheet
6 - 1.3.2 Accessories
6 - 1.3.3 Span
6 - 1.3.4 Loaded panel
6 - 1.4 RESISTANCE TO WIND FORCES.
7 - SECTION 2. MATERIALS
7 - 2.1 FIBRE-REINFORCED CEMENT SHEETING.
7 - 2.2 OTHER MATERIALS.
7 - 2.3 FASTENINGS.
7 - 2.4 SEALANTS AND WASHERS.
7 - 2.4.1 Diamond washers.
7 - 2.5 SAFETY MESH.
7 - 2.5.1 Requirements
7 - 2.5.1.1 General
7 - 2.5.1.2 Loading
7 - 2.5.2 Deemed to comply
8 - SECTION 3. DESIGN
8 - 3.1 GENERAL.
8 - 3.2 LOADINGS.
8 - 3.2.1 General.
8 - 3.2.2 Construction.
8 - 3.3 SUPPORTING STRUCTURE.
8 - 3.4 FIXING OF STRUCTURAL MEMBERS.
8 - 3.5 PURLINS AND BATTENS.
8 - 3.5.1 General.
8 - 3.5.2 Alignment.
8 - 3.5.3 Batten joints.
8 - 3.5.4 Width and depth.
8 - 3.6 ROOFS.
8 - 3.6.1 Roofs with end laps.
8 - 3.6.2 Roofs without end laps.
8 - 3.6.3 Side laps.
8 - 3.7 ROOF DRAINAGE.
9 - 3.8 SAFETY MESH.
9 - 3.9 WALKING AND STANDING ON ROOFS.
9 - 3.9.1 Walkways.
9 - 3.9.2 Notices.
9 - 3.10 FLASHING AND PROJECTIONS THROUGH ROOFS.
9 - 3.10.1 Ventilators and roof lights.
9 - 3.10.2 Projections through roofs.
9 - 3.11 EAVES AND GABLE ENDS.
9 - 3.12 TOP EDGES AND ABUTMENTS.
9 - 3.12.1 Top edges.
9 - 3.12.2 Abutments.
9 - 3.13 MOVEMENT JOINTS.
10 - SECTION 4. INSTALLATION
10 - 4.1 SAFETY PRECAUTIONS.
10 - 4.2 CUTTING AND DRILLING.
10 - 4.3 SUPPORTS AT HIPS AND VALLEYS.
10 - 4.4 POSITION AND FIXING OF THE SAFETY MESH.
10 - 4.4.1 General.
10 - 4.4.2 Relevant positions of longitudinal and transverse wires.
10 - 4.4.3 Joints in longitudinal
10 - 4.4.4 Joints between adjacent lengths of mesh.
10 - 4.4.5 Fixing.
10 - 4.4.6 Corrosive atmospheres.
10 - 4.5 LAYING THE SHEETING.
11 - 4.6 FIXING THE SHEETS.
11 - 4.6.1 General.
11 - 4.6.2 Fixing to timber purlins.
11 - 4.6.3 Fixing to steel purlins or girts.
11 - 4.6.4 Sealing.
11 - 4.6.5 Number of fastenings.
11 - 4.7 FIXING FIBRE-REINFORCED CEMENT ACCESSORIES.
12 - APPENDIX A - GUIDANCE NOTES ON ROOF VENTILATION
12 - A1 CONDENSATION.
12 - A2 VAPOUR BARRIERS.
13 - APPENDIX B - DETERMINATION OF RESISTANCE TO WIND FORCES BY TEST
13 - B1 SCOPE.
13 - B2 PRINCIPLE.
13 - B3 APPARATUS.
13 - B3.1 General.
13 - B3.2 Strengthening of the supporting structure.
13 - B3.3 Loading system.
13 - B3.4 Deflection measurement device.
13 - B4 TEST SPECIMEN.
13 - B4.1 General.
14 - B4.2 Width of the specimen.
14 - B5 PROCEDURE.
14 - B5.1 General.
14 - B5.2 Working load test.
15 - B5.3 Ultimate load test.
15 - B6 REPORT.
16 - APPENDIX C - SAFETY MESH - LOAD TEST
16 - C1 SCOPE
16 - C2 PRINCIPLE
16 - C3 APPARATUS
16 - C3.1 Test frame
16 - C3.2 Test loads
16 - C3.2.1 Dynamic
16 - C3.2.2 Static
16 - C4 TEST SPECIMEN
16 - C5 PROCEDURE
16 - C6 REPORT