Insulating coatings are an ideal solution for fire protection. They maintain their volume in the event of fire. Added ingredients form into a further barrier layer and therefore have an insulating effect are the decisive factor in this coating solution. The mortar has added fibres that burn in case of fire and create the essential voids for the mortar. The layer thickness is higher and therefore has to be considered from an architectural perspective as profile-widening as well as narrowing the cross section.