Mortars used in thermal insulation systems primarily affect the durability of the solution. Adhesive mortar is primarily the durability of the joint, reinforcing mortar is the protection of thermal insulation against mechanical damage. We offer mortars for polystyrene, such as LEPSTYR 210 or STYRLEP 220, and for mineral wool LEPSTYR-W 230 and STYRLEP-W 240. We especially recommend flexible mortars such as LEPSTYR 210 ELASTIC or STYRLEP 220 ELASTIC, which are ideal for graphite polystyrene. STYRLEP mortars contain reinforcing fibers that increase resistance to thermal stresses. An interesting mortar is STYRLEP-B 225, it is white, universal, suitable for both mineral wool and white and graphite polystyrene. Importantly, after its application, no priming is required before applying the decorative plaster.