Dear Sir Madam, This is felicitas fausto from ARG. We are interested in buying waterproof membrane with the description given below : Type : Dimpled waterproof membrane for green roof Gram mage : 1000g, 1100g, 1200g, 1300g, 1400g, 1500g Material : HDPE W Length : 15m 20m Color : White, Black, Brown, Green Application : Green roof, foundation, basement Certificate : CE, ISO Elongation At Break : 550% Tensile Strength : 16Mpa Quantity Required : 5000 Square Meter Shipping Term :T T. Best Regards, Felicitas Fausto (Director Purchasing) Citi Global International citiglobalinternational1 at gmail.com