What's the best way to batten out a Dormer

[crispy_wafer]

Consider a typical new build dormer, room in roof arrangement, insulation under the trusses.  What's the best/easiest way to batten out for, and what's easier to fix to for when I plasterboard?  For any services I've already created a couple of channels in the insulation.

 

Tis my job for the weekend possibly, maybe... 

 

So to save any more procrastination and time wasted

 

Trusses vary between 600 and 400 centres.

 

Should I batten along the trusses, or perpendicular to the trusses?  I'm not planning on installing any lights in the slopes.  And is 100*25 ok to use as battening (I've got a pile on site)?  Planning on 12.5 mm plasterboard, so if I go across, then 400 centres? and edge support where it meets the wall, or opening?

[nod]

Straight across at 400 centers

[crispy_wafer]

A picture worth its weight, any edge support at the wall required @nod

[nod]

I agree 

I always try and understand a pic 

No need for any edge support at 400 centre 15 you use 15 mil or thicker boards No need at 600