Thermal Insulation Roofing Fixings are designed to be used on roofs with an inclination of up to 15 degrees. Various types of screw are available in the our range for fixing to trapezoidal metal sheet, concrete or timber. Similar to facade fixings for insulation, the fixings have a large circular or oval head to distribute and resist wind suction loads. This range includes Screw-in Facade Fixings, Hammer-in Facade Fixings, Insulation Washers, Insulation Retaining Plates and Steel Insulation Washers.