Green roofing turns out to be a passive cooling technology with superior performance compared to the best roofing building techniques and allows the interior of sheds to be cooled without using huge amounts of energy. A "Green Roof" is also helpful in reducing damage from water bombs since the soil absorbs rain and releases it gradually, preventing flooding of roads and/or houses. Finally, a "Green Roof" is an aesthetic beautification for cities. In some cases, green roofs, using appropriate arrangements, can also be an opportunity to provide suitable sites of some threatened animal species.

Waterproofing is, for sure, one of the most important aspects in creating a green space on a slab.

 Waterproof geo membrane Hidrostan EPDM is root-resistant and resists both water and weathering events (frost, heat, sunlight, etc.) and various mechanical stresses with an elongation of more than ≥ 300 % caused by changes in humidity and possible temperature changes.Waterproof geo membrane Hidrostan EPDM must be arranged with extreme care, avoiding the formation of spaces where water infiltration can occur. Overlaps should be done correctly and great care should be taken with all edges and elements that interrupt the continuity of the membrane.

Water drainage and runoff are critical to avoid excessive water in the substrate, which can be extremely detrimental to plant life. There is no exact indication. as conditions such as rainwater evaporation on a hot EPDM surface are difficult to test. On a fully sloped Hidrostan EPDM roof with a low slope of 1/4 "per foot a coefficient of 0.95 to 0.99 could be justified. If calculating drainage flow for design or legal reasons, contact a plumbing engineer, registered in the state where the building in question is located.