To ensure this the battens should be at least 1 2m long.
How far apart should roof battens be.
Below 200mm there can be 3 consecutive joins in any twelve battens.
Battens should be fixed to rafters set at centres not more than 600 mm apart and should span at least 3 rafters.
Common spacing for trusses on this type of building is often between 2 and 4 feet but trusses built with advanced designs may allow spacing as great as 8 or 12 feet.
This is your metal roof batten layout.
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.
Note the lineal footage of strips for each.
This translates to seven rows of strips 20 feet long spaced two feet apart or 140 lineal feet of stripping.
So the space between rafters can be greater without reducing the maximum span.
Your choice of batten size here will be determined by the weight and span of your metal roof panels.
The same concept holds true for roof trusses.