Timber Roof Battens Span

Stratco roof and ceiling battens are light yet strong offering an economical alternative to timber.

Timber roof battens span.

Roof load width rlw and floor load width flw can be determined from as1684 or from the images below. Construction details should be in accordance with as1684 2. Timber stress grade f17 seasoned hardwood f17 129. For alternative stress grades fixing methods larger spans pitched roofs wind classification c3 etc refer as 1684 residential timber framed construction.

Fasten the batten to every truss or rafter with a 12 x 40mm timber fixing screw minimum fixing size through each flange. Span tables f7 rafters a maximum roof pitch of 25 degrees is assumed. The sizes and fixings assume pergolas are either roofed lightweight roofing 10 kg m3 or could have a roof installed at some future stage. Note that spanman automatically calculates the weight of roof battens and adds it to the roof weight.

The imposed uniformly distributed live load in the main span. Fixing to roof sheets. Spacing should be interpreted as the centre to centre distance between adjacent parallel members. Fixing battens to timber.

Timber battens for tile roofs must meet the requirements of as 1684 2 as 1684 3 or as 1720 1. This is set by the roof use. For details of weights refer to about technical. Press design to obtain sizes.

Minimum bearing length 35mm at end supports. Manufactured from high tensile zinc al steel stratco roof and ceiling battens remain straight and consistent throughout their life. Batten mid span lapped joins minimum of 300mm 300mm 300mm 300mm 50mm minimum lap rafter waste end to be under turn down lips on battens where they intersect if the overhang of the mitred roof batten exceeds 300mm. Alternatively design in a specific timber or steel material type.

Roof and ceiling battens. Stramit top hats battens capacity tables important note the information contained within this brochure is as far as possible accurate at the date of publication however before application in a particular. Technical diagram on page 35 30mm m aximum allow able sp ans mm sheet roof spacing mm rafter size 600 760 900 1000 1200 66 x 30 850 750 700 700 600 90 x 30 1200 1050. Fixing battens to steel.

The high performance values of steel roof battens means they are an increasingly popular choice for reroofing or for new builds using tile roofs. Fasten the batten to every truss or rafter with a m5 5 x 40mm batten zip minimum fixing size through each flange. We supply 38 x 38mm or 28 x 38mm non structural timber battens for tile roofs.