Sticking plasterboard to insulation board

[rreanor]

I have a final wall to insulate but getting a massive piece of insulated plasterboard won't be practical for several reasons.

I see you can get smaller pieces of kingspan from Wickes however it doesn't have the plasterboard glued to it.

How would you fix the bare insulation board to a timber baton system without the plasterboard? I was thinking of just glueing it to the batons first to secure it, then boarding over it and securing the board with drywall screws.

 

[Deleted member 174758]

For the best thermal efficiency you need a snug fit, so cut it really tight and push it in gently. If it is cut tight it will hold itself in place. Or tape it in place with 3in or 4in foil tape (less thermally efficient than a tight fit). Or use expanding foam to glue it in (messy and less thermally efficient than a tight fit). Or take a look at Gapotape

PIR insulation is easily cut with a 20 to 24in long handsaw (supported on trestles) - use a straight piece of something like 3 x 2in CLS as a saw guide and to help you cut square (very important fir a snug fit)

You can then just board over afterwards as normal

 

[Dereekoo]

For the best thermal efficiency you need a snug fit, so cut it really tight and push it in gently. If it is cut tight it will hold itself in place. Or tape it in place with 3in or 4in foil tape (less thermally efficient than a tight fit). Or use expanding foam to glue it in (messy and less thermally efficient than a tight fit). Or take a look at Gapotape

PIR insulation is easily cut with a 20 to 24in long handsaw (supported on trestles) - use a straight piece of something like 3 x 2in CLS as a saw guide and to help you cut square (very important fir a snug fit)

You can then just board over afterwards as normal

I assumed from his description that the insulation is to go over the battens? If so glue and screwed plasterboard would seem a simple solution

 

[Deleted member 174758]

I was assuming between the studs which is the most efficient in terms of usable floorspace a is how we are generally asked to install