Panel roof/sloping roof

[Bybe]

Hello!

I'm having some trouble with the panel roof that is supposed to be installed on a sloped ceiling.
Do I have the right nails?
Should I add more framing?

The trusses are set at 120cc

The paneling is not settling satisfactorily with the nails, and it's "arching" in one spot.
The insulation is 270mm, and the space between the ventilation gap and the end of the truss is about 265mm.

 

[Allmänobildad]

It's important to ensure the first panel board is completely straight and to nail it in the right place so the tongue and groove join properly. Personally, I would choose 1.6mm brads for paneling that will be hung on a framework, and place the battens closer together to prevent the panel from sagging between the connections.

 

[Bybe]

Important to get the first panel board completely straight and to nail in the right place so that the tongue goes all the way in. Personally, I would have chosen 1.6mm brads for the panel that will hang in the framework, and closer between the nailing battens to prevent the panel from sagging between the attachments.

Thank you for your response

Used a laser on all these 4 boards so it should be straight. I aimed the attachment about 45 degrees into the board, on the inner edge of the tongue.

These in the picture are the panels shot straight into the rafter, should I have built another framework on the outside before I put up the panel ceiling?

 

[surris]

Yes, you need to frame at a max of cc 600, I can see in the picture how the insulation is pressing down the plastic, which will also press down on the panel.

Another thing, are you going to paint the panel? At the very least, you should prime it before installation. The panel will likely dry/move and if you paint it in place, not the entire tongue and groove will be covered, and when it dries/moves, you'll see where you haven't reached with the paint.

 

[Bybe]

Yes, you need to frame at a maximum of cc 600, I can see in the picture how the insulation pushes down the plastic, which will also push down the panel.

Another thing, are you going to paint the panel? At least prime it before installation. The panel will probably dry/move, and if you paint it in place, the entire tongue and groove won't be covered, and when it dries/moves, you'll see where you couldn't reach with the paint.

Ok, thanks for the painting tip!
Do you have any suggestions on how I should construct the framework?

 

[surris]

Ok, thanks for the painting tip!
Do you have any suggestions on how I should construct the framework?

I would have placed purlins between the rafters and then spaced vertically. But since you've already plasted, that's not possible.

The easiest way is to space it as you did in the knee wall and then space vertically on the outside, but that builds an extra 28mm. If you don’t want that, you can space the vertical behind the existing spacing and then add spacers so they align with the horizontal.

 

[Bybe]

I would have used battens between the rafters and then spaced vertically. But since you have already plasticized, that won't work.

The easiest way is to space it as you did in the knee wall and then space vertically outside, but that will add 28mm extra. If you don't want that, you can space the vertical batten behind the existing one and then insert battens so they level with the horizontal.

Great! Now I have some options.
Thanks for the help