Timber Roof Batten Spacing Australian Standard

9 fixings and tie down design shows that for roof battens and rafters spaced at 900 mm centres wind rating n1 in joint group jd5 two plain shank 75 mm long nails do not provide a compliant edge or general area batten to rafter connection.

Timber roof batten spacing australian standard.

Based on the foot traffic requirements of as3623 the maximum span for stramit 0 48 roof batten is 900mm and stramit 0 55 roof batten is 1200mm. 3 6 2 bottom chords temporary braces at all mid panels maximum 3000mm apart but not required for creepers jacks hip trusses dutch hip girders and tg trusses with stations up to 3600mm. The maximum overhang of house rafters or trusses shall not exceed 750 mm from outside of top plate to end of rafter truss. Use 70 x 35 f5 or better fixed with 2 65 nails or 1 65 screw per truss crossing.

This assumes a maximum batten spacing of 300mm and a maximum tile weight of 0 67 kpa. Supplement for roof batten 4 example. Timber battens for tile roofs must meet the requirements of as 1684 2 as 1684 3 or as 1720 1. 0 48mm bmt stramit batten 1 0mm g550 steel trusses at 600mm centres corrugated 0 42mm sheeting with 5 fasteners sheet n3 wind class batten spacing batten limit sheeting limit final 2250 900 900 2700 1200 1200 1590 900 900 1590 1200 1100 900 900 r lpe 0 0 batten spacing 900mm batten spacing 900mm batten.

Ceiling batten spacing is selected to suit plasterboard manufacturer s requirements.