Asphalt board directly on the timber for facade replacement?

[Anders_cc]

Replacing the panel that was nailed directly onto the timber. I'm thinking of a wind barrier and narrow battens 22x45 (to create an air gap).

Is there any point in squeezing in asphalt board or a similar porous board (19mm Hunton windproof) between the battens, to slightly increase the insulation?

I understand that the air gap is minimized but there will be 3mm left after all
Since there is no vapor barrier inside and the panel is to be painted with distemper paint, there really is no need for an air gap.

Best regards, Anders

 

[Tjrex]

I would have skipped the wind protection and nailed the asfaboard on the timber. But it's obviously difficult if the timber is uneven.
You should have the air gap because you never know what the next owner plans to paint with.

 

[Anders_cc]

Then battens over/on the asfa board?
I don't want to build out more than necessary so that the windows don't appear recessed, and the connection to the foundation wall becomes natural.

 

[Tjrex]

Just nailed the battens in place.
Hunton has a board that is grooved, which is easier to install.

 

[Larsa]

I am in the same situation. Plan to use asfaboard, 10x50 battens, and then panel.

 

[Anders_cc]

I think a 22mm extension from the timber is the maximum before it starts looking strange. The question then is whether a 19mm or 12mm board between the battens makes a noticeable difference that justifies the extra work and cost of the boards? I believe a 3mm or 10mm air gap is sufficient.

 

[Anders_cc]

I'm in the same situation. Planning to use asfaboard, 10x50 battens, and then paneling.

Sounds good, that would extend out 22mm. But the nails that end up in the gap between the logs or in cracks are only in a 10mm batten?
If you first install a wind barrier, then 22mm studs, and mount the board between them, I imagine the paneling would hold better.

I've already bought a wind barrier.
The board is only for extra insulation.

Would a Treetex board work as well as asfaboard (I read that asfaboard easily molds?)

 

[Stefan1972]

I would have used asfaboard directly on the timber and then skipped battens if you're going to use Falu paint anyway. You can't think about what future owners might do.......They have to adapt to the circumstances or batten out the panel themselves then. Or buy a newer house.