The maximum overhang of house rafters or trusses shall not exceed 750 mm from outside of top plate to end of rafter truss.
Timber roof batten spacing australian standard.
Installation of nailplated timber trusses and as such should be read in conjunction with this standard.
When assessing the required capacity of the batten rafter connection as1684 2 2010 divides the roof into two areas.
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If additional fall protection is required on steel sheet roofs stratco ceiling battens may be fixed intermittently between stratco roofing battens giving a batten spacing no greater than 600mm.
1 2 application this document intends to apply to nailplate timber roof.
Roofing battens are suitable for non cyclonic conditions up to and including w41 n3.
Pryda australia acknowledges standards australia for permission to reproduce some of the drawings and technical content from within as4440 2004.
Steeline roof battens are compatible with all standard roof cladding materials and it can also be used in combination with other systems such as timber.
Timber battens for tile roofs must meet the requirements of as 1684 2 as 1684 3 or as 1720 1.
Handling and storage if roof battens are to be stacked and left in the open for any length of time ensure they are kept off the ground with one end elevated to drain any collected moisture.
Spans 9m to 16m crane 60 or less 1 3 to 1 2 span 1 3 to 1 2 span crane slings should be located at equal distances from the truss centreline and be approximately one third to one half truss length apart.
Crane chain for brace on crane lateral movement of truss vertical chain or cling 1 3 to 1 2 span 1 3 to 1 2 span figure 3.
Edges within 1200 mm of the building edges includes ridges hips perimeter and general areas all other areas of the roof not included in edges.
By complying with this standard users are deemed to satisfy the requirements of the building code of australia.
Refer to stratco for applications in higher wind conditions.
The high performance values of steel roof battens means they are an increasingly popular choice for reroofing or for new builds using tile roofs.
We supply 38 x 38mm or 28 x 38mm non structural timber battens for tile roofs.
