For normal applications in non-cyclonic areas,
the following general recommendations are given providing
correct size and number of fasteners are used.
ROOF
SUPPORTS
.42 BMT
.48 BMT
End Spans
900mm
1300mm
Internal Spans
1200mm
1700mm
WALLING
SUPPORTS
.42 BMT
.48 BMT
End Spans
2200mm
2500mm
Internal Spans
2600mm
2700mm
ROOF OVERHANGS Where
roofs are subject to access or foot traffic
.42 BMT
.48 BMT
Stiffened
300mm
350mm
Unstiffened
200mm
250mm
The preceding recommendations comply with the requirements
of A.S.SAA HB39-1997 “Installation Code for Metal
Roofing and Wall Cladding”.