How do I turn the façade wood? See picture..

[Pe_Er]

Don't know how this facade wood is supposed to be mounted. The standard is probably that the rough-hewn side is turned outward.
With the rough side out, I get the joint between board 1 (the board farthest to the left) and board 2. If I alternate each board planed/rough-sawn, then I get a joint like the one between board 2 and 3.
Personally, I think the joint between 2 and 3 is more discreet and nicer. But it feels weird to place every other board with planed/rough-sawn surface out...
So I guess the idea is that all boards are placed with the rough side out and with the joint like between board 1 and 2?

 

[b8q]

Yes, the facade is intended to look "striped", with a clear recess between the panel boards. Additionally, it is beveled so that there won't be a ledge where water stays if one chooses to install the panel horizontally.

 

[Pe_Er]

Answer Yes - the facade is intended to look "striped", with a clear recess between the panel boards. Additionally, it is planed at an angle so that there won't be a ledge where water stays if you choose to install the panel horizontally.

And by "striped", do you mean the strongest stripe, which is between board 1 & 2?
This panel is supposed to be installed vertically but that doesn't affect my question, of course..

 

[tergo]

So I assume the idea is that all boards are placed with the rough side outwards and with the joint like between board 1 and 2?

Yes, you assume correctly.

 

[b8q]

And by "striped", do you mean the strongest stripe, which is between board 1 & 2?
This panel is to be mounted vertically but that doesn't affect my question of course.

Yes.