Ideal for use as a roofing batten for residential steel or tiled roof topspan 40 is a 40mm deep batten offering a high strength yet light weight solution that won t shrink warp or twist.
Steel roof batten span tables.
It contains span tables covering various primary and secondary beam spans with common design floor loadings.
Span tables have been produced in combination with calculations derived from as nzs 4600 and using software developed by the centre for advanced structural engineering at the university of sydney.
Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.
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.
Loads are calculated in accordance with table 3 1 of as nzs 1170 1 2002.
As 1397 2011 steel sheet strip g550 mpa steel roof ceiling battens.
As 1170 and then determined the span required from the table below.
Stramit roof batten 0 48 0 48 mm g550 0 60 kg m stramit roof batten 0 55 0 55 mm g550 0 77 kg m stramit cyclonic roof batten 0 75 mm g550 0 98 kg m stramit ceiling batten 0 42 mm g550 0 37 kg m stramit wa ceiling batten 0 42 mm g550 0 34 kg m.
Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall.
This assumes a maximum batten spacing of 300mm and a maximum tile weight of 0 67 kpa.
Roofing battens are suitable for non cyclonic conditions up to and including w41 n3.
Design of single span rafters in roofs in houses office buidlings schools and other structures.
The top flange has an embossed surface to make it easier for the steel roofing screws to grip.
Note that spanman automatically calculates the weight of roof battens and adds it to the roof weight.
Steeline metal roof battens are a versatile and easy to use batten compatible with all roof.
For details of weights refer to about technical.
Material specification material truecore roof batten hi tensile steel section is produced from hi tensile grade g550 az150 550.
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.
Embossed top flange provides slip resistance for roof fixers.
Each product has different requirements for example batten spacing for 0 42bmt corrugated metal roofing needs to be no more than 1100 mm apart but batten spacing for 0 48bmt metal roofing can be up to 1600 mm apart.
Refer to stratco for applications in higher wind conditions.
