This stress plate is used with screws for metal or concrete. Mainly used in fixing membranes for flat roofs over a mineral wool. Of course, it can be used in fastening details in other fields as well, such as facade or ceiling thermal insulation, fastening of OSB plates, etc. It is made of aluzinc, a material that is many times more resistant to corrosion than galvanized sheet metal. The degree of resistance exceeds 15 Kesternich cycles.
Suitable when the roof is covered with mineral wool and the membrane is not directly placed over a hard base like concrete, play wood or OSB. Hard base does not allow the cone of the stress plate to "sink" into the material and the element is not even with the base.