With hertalan EPDM strips, HERTALAN® has a Damp Proof Membranes System in which you can make all structures damp-, water- and windproof. hertalan EPDM strips is an EPDM system for sealing applications. This Damp Proof Membranes System can be used for waterproofing roof gutters, cavity wall structures, conduits and window frames quickly and effective against leaks and moisture penetration. It can be attached to virtually any substrate, it has an exceptionally long life cycle, is very environmentally-friendly, stays flexible, can be recycled and is easily adhered to numerous surfaces. Also, this versatile product is completely resistant to acid rain.