Hi
How do you close in between the roof rafters?

I can't find online how to close in between roof rafters.
Probably I've mixed up the concepts and am searching for the wrong things.

From outside to inside:
Panel 22x118
Nail batten 34x70 (green)
Ventilation batten 25x45 (red)
Windproof foil
Stud 45x45
Insect net
Noggin 45x70

Yellow = insulation

Is this how one can/should do it?
How many mm should there be between the underside of the sheathing and the panel?
On the gables, can the panel go all the way up to the sheathing, or should there be a few mm gap?
 
  • Cross-section diagram showing roof construction layers: panel, battens, air gap lath, windproof foil, and insulation, with metal bracket on wooden beam.
A Almost0.5acres said:
Hello
How do you fill in between the roof rafters?

Can't find online how to fill in between the roof rafters.
I've probably mixed up the terms and am searching for the wrong things.

From outside to inside:
Panel 22x118
Nail battens 34x70(green)
Air gap battens 25x45(red)
Weather barrier film
Stud 45x45
Insect net
Noggin 45x70

Yellow = insulation

Is this how you can/should do it?
How many mm should there be between the underside of the roof boarding and the panel?
On the gables, can the panel go all the way up to the roof boarding or should there be a few mm gap?
Looks reasonable, I've done something similar. Left about 20 mm between the panel and the roof boarding.

Laid a horizontal board between the rafters that was just over 20 mm lower than the rafters, which are flush with the lower edge, to avoid having to notch the panel.

Search for "open eaves" if you want to see pictures.

On the gables, they can go all the way up to the roof boarding.
 
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G Gullliver said:
Looks reasonable, I've done it roughly the same way. Left about 20 mm between the panel and the raw board.

Placed a horizontal raw board between the rafters that was just over 20 mm lower than the rafters, which aligns with the bottom edge, so you don't have to notch the panel.

Search for "open eaves" if you want to see pictures.

On the gables, they can go all the way up to the raw board.
Thanks Gullliver for the answer. Now I know that others have built this way🙂
 
The normal procedure is to have a board (oljeboard) under the roof that directs any moisture out and it needs a gap of 20-30mm in the panel. However, it drips any moisture behind the panel, and then you have insect protection as well. Then you insulate under this oljeboard. If you are going to insulate in the roof...
 
pacman42 pacman42 said:
The normal practice is to have a board (oljeboard) under the roof that directs any moisture out and it needs a gap of 20-30mm in the panel. It drops any moisture behind the panel, and then there's insect protection too. Then you insulate under this oljeboard. If you are going to insulate the roof...
Yes, I will insulate the roof and have 20-30mm oljeboard under the roof decking.
Is it important that the oljeboard ends where the air gap is?
So any moisture runs on the outside of the wind protection film then?
 
A Almost0.5acres said:
Yes, I will insulate the roof and will have oilboard 20-30mm under the raw planking.
Then it’s important that you ideally get the oilboard to end where the air gap is?
So any moisture runs on the outside of the wind protection film then?
On the wall membrane but under the panel.
 
pacman42 pacman42 said:
On the wall foil but under the panel.
Yes, got it. Then I'll move the insect net to the 45x45 studs.
Thanks for the tip🙏👍🙂
 
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