Green Roof Industry Standards

The basic anatomy of a green roof consists of vegetation growing medium filter membrane drainage layer waterproof root repellant layer roofing membrane support for plantings above thermal insulation vapor control layer and structural roof support.

Green roof industry standards.

Most scv roofs that are greater than 6 inches in depth are expensive and found on residential high rise structures often containing pools and other. Additional standards for various aspects of sustainable roofing systems are underway in d08 24 including guides for. Green roofs can increase a building s marketability. All three types of roofs require specific layers of roofing materials not found on regular roofs.

An extensive green roof can reduce sound from outside by 40 decibels while an intensive green roof can reduce sound by 46 50 decibels peck et al. As defined by green roof industry standards extensive green roofs have a soil media of less than 6 inches in depth and intensive green roofs have a soil media of more than 6 inches in depth. Standard test method for maximum media density for dead load analysis of vegetative green roof systems. E2400 e2400m 19.

The toronto green roof construction standard tgrcs is the first municipal standard in north america to establish the minimum requirements for the design and construction of green roofs. While fairly young established in 2004 this organization works tirelessly on updating the education of its members and accredited professionals green roof professional grp. Green roofs have excellent noise attenuation especially for low frequency sounds. Green roofs for healthy cities works to develop standards in support of the further development of the industry.

Standard guide for vegetative green roof systems. A growing industry of green roof professionals has blossomed and has guidance with standards including one covering a comprehensive approach to designing planning and installing vegetative green roofs e2777. E2788 e2788m 18. Green roofs for healthier cities grhc is the governing organization for the green roof community and industry standards in north america.

The standard helps practitioners identify the characteristics of green roof systems consistent with the core sustainability principles outlined in astm e2432. The tgrcs establishes the city s requirements while also meeting the ontario building code obc requirements.