Dont know if anyone can help me. I'm converting a barn. a very long thin barn. Its 10'6" wide by 43 ft. on two floors. I need to insulate the walls. i dont want to stud it and then skim with plaster or insulate using board as the walls are all over the place and I could loose valuable width ending up feeling like Im living in a hospital corridor. Can anyone help with sugestions that are building regs compliant and also non toxic. I want a healthy warm space to live in!ta x