lol dude, I hate you and love you for this post. You inspired me to go and quickly fill the gaps. First gun had pretty much ran out of gas so I used a new one. Overdid the top but not without forgetting to pay attention; turned around and big dollops of it came bashing down all of the window handles, surround and glass. Horrid stuff - blew through a tonne of flannels and Sticky Stuff Remover. All done though!
I am inspired by the PIR stuff as well. What adhesive did you use? Did you then plasterboard to the battens?
I use this stuff as adhesive. https://www.diy.com/departments/soudal-genius-gun-plasterboard-adhesive-750ml/1416342_BQ.prd Surprisingly B&Q are the cheapest place for it, sticks like S!*t to a blanket.
And yes the plasterboard goes on the battens, I put RWA45 in the gaps for extra thermal and acoustic insulation. Just finished hall/stairs, which was fun with 2.7m sheets of plasterboard.
![bTQ5wes.jpg](https://i.imgur.com/bTQ5wes.jpg)
![xw6nVpV.jpg](https://i.imgur.com/xw6nVpV.jpg)