Isomat Thermosystem external thermal insulation systems are all certified according to ETAG 004 or EAD 040083-00-0404. You can be sure of the quality of the products that make it up and that the combination of them ensures the desired end result, as it has passed all the laboratory tests for external thermal insulation systems. A certified system, under proper operating and maintenance conditions, maintains its properties throughout the life expectancy of up to 25 years.