AS 1562.1:2018 pdf free

AS 1562.1:2018 pdf free.Design and installation of sheet roof and wall cladding
Fasteners shall be durable and corrosion resistant. The coating shall be appropriate for the corrosion environment specified in ISO 9223 with a design life equal to or superior to the cladding. Fasteners shall be compatible with any other material with which they may be in contact or，if not compatible, shall be electrolytically insulated from such material to minimize the risk of dissimilar metal corrosion.
NOTES:
1 Fasteners should only be used in the applications and environments recommended by the fastener manufacturer.
2 The fastenings, including any retained mandrels (e.g. rivet stems), may be suitably plated or coated to achieve the necessary corrosion resistance and compatibility. Such platings or coatings should be sufficiently robust to remain substantially undamaged by the fixing process.
3 For information on all materials referenced in Clause 2.2, see Table C3, Appendix C.
4 For a comparison table from AS 4312, see Table C2, Appendix C.
Aluminium fastenings shall conform to the following requirements:
(a) Nails and hook bolts shall be made from extruded aluminium: 6000 series aluminium alloy.
(b) Fastenings such as clips, brackets and washers shall be made from sheet aluminium:3000 series or 5000 series aluminium alloy.
(c) Screws and other fasteners made from non-compatible materials such as stainless steel shall be isolated from aluminium cladding.
NOTE: See Tables C2 and C3, Appendix C, for further information.
Thermally induced effects shall be accommodated by either –
(a) demonstrating that the system can resist the applied thermal loads; or
NOTE: This may be achieved by limiting maximum length between top and bottom rows of fasteners on a sheet.
(b) detailing the system to absorb the applied thermal movement.
NOTE: Absorbtion of applied thermal movements may be achieved by the-
(a) provision of expansion joints; and/or
(b) use of elongated slots on sheets.
NOTES:
1 Appendix C provides guidance on typical coefficients of linear expansion.
2 To give an indication of the extent of thermal expansion that needs to be considered, an unrestrained 15 m steel sheet expands through approximately 12 mm and aluminium for 24 mm for a temperature variation from 0°C to 65°C. In practice, cladding movement in roofs may be less than this due to many factors including friction and flexibility of the supporting structure.
3 Practical demonstration of bracing capacity of the sheeting may be required for systems with provision for accommodating thermal induced movement (see Appendix E).
4 Transverse thermal expansion in ribbed cladding is absorbed by lateral distortion of the ribs.AS 1562.1 pdf free download.