KRAITEC® top plus is a structural protection mat for protection against mechanical damage on seals and insulating elements as defined in DIN 18531, 18533 and 18535. KRAITEC® top plus features PVC fleece-lamination on the underside that functions as an integrated separating layer in case of incompatibilities (e.g. softener migration) of the roof waterproofing membranes. Please be advised that a consolation with the particular roofing membrane manufacturer is recommended!