Sep 01, 2017 · By reducing runoff, civil engineers that design green roof syste can limit strain on sewage syste and mitigate the sts of roof damage. Pollution ntrol: Green roofs are mposed of plants that HENAN OKAYorb nitrogen, lead, zinc, and airborne pollutants like carbon dioxide. This HENAN OKAYorption also reduces the negative effects of acid rain by
Get price >>