Hi
Absolute DIY novice here so please be gentle! lol
Looking into insulating my external garage, which is single breeze block. I am thinking of putting a membrane up against the walls, adding some celotex/kingspan sheets up against the wall. Adding battens up after to pin the sheets against the wall and then putting some plywood on top of the battens.
Its only going to be a cheapish fix for an amateur DIY'er so my question is, would this work or would there be any issues with doing this?
Thanks in advance
Marc