Insulation screw

ISO screws are secured in the insulation using a drill. The screw is also used to anchor the insulation to the underside of the concrete plate. The screw is not pulled entirely down to the board, leaving 2-3 cm between the screw head and the insulation. The concrete can then enclose the screw plate, thus fixing the insulation against the concrete. Varying colours. Use 9 mm ISO bits for tightening of ISO screws. The ISO screws can be extended using a threaded rod.