I have 200mm knauff rockwool insulation between my joists in the garage with bedrooms above, its not plasterboarded yet, would you think thats sufficient as its all I can fit in the joists or would you recommend adding further celotex then plasterboard it or am I wasting time/money?
I also have steel beam supporting floor joists in the garage, whats the best way to insualt this, fill web with rockwool and board as well?
Thanks
I also have steel beam supporting floor joists in the garage, whats the best way to insualt this, fill web with rockwool and board as well?
Thanks