Hi
I am converting a garage and my BC plans say that I need 150mm Kingspan floor insulation with dpc, membrane and 25mm edging then 75mm sand cement for floor.
I need 12 sheets (2400mm x 1200mm) and due to cost would it be OK to put down 75mm polystyrene boards then top with 75mm Kingspan floor insulation?
Any advice appreciated
Thanks
I am converting a garage and my BC plans say that I need 150mm Kingspan floor insulation with dpc, membrane and 25mm edging then 75mm sand cement for floor.
I need 12 sheets (2400mm x 1200mm) and due to cost would it be OK to put down 75mm polystyrene boards then top with 75mm Kingspan floor insulation?
Any advice appreciated
Thanks