This  Standard  is  part  of  a  series  on  sheet  roof  and  wall  cladding  which  comprises  the following:

AS   
1562  Design and installation of sheet roof and wall cladding
1562.1  Part 1: Metal (this Standard)
1562.3  Part 3: Plastic
AS/NZS   
1562  Design and installation of sheet roof and wall cladding
1562.2  Part 2: Corrugated fibre-reinforced cement

The objective of this Standard is to provide designers and installers with clear information to determine the minimum requirements for the correct and safe design and installation of sheet  metal  roof  and  wall  cladding,  based  on  the  best  available  evidence  and  current industry practice.

The main technical changes to the Standard are the following:

(a)  Revision of the design section to align with current versions of AS/NZS 1170 series.
(b)  Revision of the installation section to provide flashing requirements to minimize the risk of water ingress, and to highlight the importance of fixing ancillary equipment to the roof structure rather than just the roof cladding.
(c)  Revision of the testing section to align it with current practice whereby roof cladding for cyclonic areas must withstand a Low-Hi-Low test regime.
(d)  Alignment  with  HB 39  and  relevant  Australian  Standards  including  AS/NZS 1170 series and AS 4040 series.
(e)  Clarification  of  the  design  aspects  such  as  rainwater  capacity,  adjacent  metal suitability, and minimum fixing requirements for flashings have been clarified.
(f)  Incorporation of factors for variation of repeat load testing have to align with current practice.
(g)  Requirements  to  fix  flashing  of  wall  and  roof  joints  and  ridge capping  with  screw connectors  at  a  minimum  spacing  of  either  300 mm  for  some  flashing  edges  and 600 mm for others.
(h)  Improved presentation of design documentation and test report for the performance verification of cladding systems.

In  this  Standard,  notes  are  for  information  and  guidance  only.  Statements  expressed  in mandatory  terms  in  notes  to  tables  or  figures  are  deemed  to  be  requirements  of  this Standard.

The  terms  ‘normative’  and  ‘informative’  have  been  used  in  this  Standard  to  define  the application of the appendix to which they apply. A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance.

First published as part of AS CA42-1968. AS CA42 revised and redesignated AS 1562-1973. Second edition 1980. AS 1562-1973 revised and redesignated in part as AS 1562.1-1992.