Installing Celotex Insulation

[blastedfury]

I'm just about to install some 60mm celotex pir board, batten and then plasterboard exactly as per celotex instructions.

The only thing i'm not sure about it what screws to use to fix it to the wall. They have to go through the battens 25mm and the board 60mm. I was thinking of getting 160mm framing fixing screws. Would these be suitable.

Obviously i wan't to make sure the screws will be strong enough because the plasterboard is screwed into the battens.

Any advice would be much appreciated

 

[spc]

depends on what you are fixing to? solid 9inch wall, solid stone wall, cavitiy wall..Do you have damp issues on the wall you are fixing the battons to? have you thought about dabbing thermaback plus boards to said walls? bearing in mind the dabs pull in moisture and bridge

 

[blastedfury]

Thanks for the replay

Everything is bought and ready to install. I'm fixing it to Thermalite Blocks in a garage conversion. There are no damp issues. The reason for doing it this way is purely cost.