12mm paneling directly on studs?

[kalubah]

I was thinking of installing vertical beadboard on a wood-framed wall but am very limited in the thickness I can choose for the beadboard. How closely should I place the horizontal noggins if I use 12mm beadboard?

 

[Ola78]

You should be fine with c/c 600 mm, the tongue and groove makes it like a rigid board. That distance is enough for regular chipboard.

 

[cheetah1]

However, you might want to have some form of fabric behind it for dust tightness? Like regular wind barrier or wind cloth? Just a thought.

 

[Ola78]

Very good thought cheetah1. Dust is never fun.

 

[Mikael_L]

Or plastic maybe, if it's a warm garage.
cc60cm should probably work quite well, but don't use too weak horizontal framework then.

Personally, I would probably build it roughly like this, from the outside in:
Standing main framework, with insulation in it.
0.2 mm åb diffusion-tight plastic.
45x45 horizontal secondary framework, with 45mm insulation. Electrical, etc., is installed here.
(possibly 11mm OSB board = much sturdier wall, capable of bearing really heavy shelves, etc.)
Beadboard.

That OSB might perhaps be placed only on a wall that is known to have heavy things hanging on it.

 

[kalubah]

Unfortunately, I don't have room for secondary studs or OSB. However, I will put up a vapor barrier between studs and tongue and groove paneling since it's an exterior wall we are talking about. Thanks for the response.

 

[kalubah]

Found some old 11mm tongue and groove boards in the storage that I just screwed onto a couple of studs at 600mm centers. If you tap them, they flex about as much as a chipboard. The biggest problem is the boards move slightly relative to each other, so the paint is likely to crack quite easily in the joint. Maybe not a huge problem - it will probably happen anyway as the wood swells and shrinks. Perhaps one should glue in the joint?

 

[mrVoodoo]

In that case, I would have painted them before putting them up, I basically always do that with all types of paneling that will be visible. Then it can shrink/swell as it wishes since the board "behind" is painted.

 

[Farzan]

Exactly, apply primer and first coat before assembly, final coat after. Do not glue in the groove, it's better if the boards can move (otherwise some boards might crack in the worst case).