Green Roofs. The Benefits are Growing. Green roof systems from Sika Sarnafil are a beautiful addition to any building. And, they benefit you and the environment by reducing building energy consumption, extending the life of the waterproofing membrane and reducing storm water runoff. Fill out the form below to receive your FREE informative Green Roof Design Guide. I am:   Specifier / Planner / Architect / Roof Consultant   Building Owner / Facilities Manager   General Contractor   Roofing Contractor   Other My address is * fields are required Name*   Title*   Company Name*   Address*   City*   State*   Zip Code*   Phone*   Fax   Email*