Vapor barrier against rafters

[Wallawhoa]

Have installed a vapor barrier on the ceiling. But now I read that you can't tape it without attaching a batten on top. Basically, the tape shouldn't be under tension.

Should the membrane be laid along the ceiling joist or across it as I've done?

What do I do? How is it done?
Will be installed sparsely at cc 300

Roof trusses 1200cc

Thanks!

 

[surris]

I have installed a vapor barrier in the ceiling. But now I read that it should not be taped without fastening a batten on top. Simply put, the tape should not be under tension.

Should the fabric be laid along the beam or across it as I have done?

What should I do? How is it done?
It will be installed sparsely on cc 300

Trusses 1200cc

Thanks!

Where are you reading that? Of course, you can tape, either that or clamp the seams. Since you will be installing sparsely, it won't be under tension.

 

[Wallawhoa]

Where do you read that? Of course, you can tape, either that or clamp the joints. Since you then put in the sparse, it will not be under tension.

Thanks for the response! It states that studs/battens should be set to prevent weight from being placed on the tape strip.

But I assume the weight won't be too significant with 300mm loose-fill insulation, and 230mm between the spars (cc300).

Is this okay?

The green tape is the rafters

 

[surris]

Yes, that's okay.

 

[Plupp 405730]

Thanks for the reply! It says that studs/battens should be applied so that weight is not placed on the tape strip.

But I assume the weight won't be that great with 300mm loose fill, and 230mm between the beams (cc300).

Is this okay?

The green tape represents the roof trusses

Looks very professional, nicely done...

 

[Wallawhoa]

Looks very professional, well done...

Thank you! I hope you weren't being ironic! 🤔

The black part is the seam of the canvas.

 

[Plupp 405730]

Thank you! I hope you weren't being ironic! 🤔

The black is actually the seam on the canvas

No, it looks great...