Green Roof Industry Standards

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.

Green roof industry standards.

Green roofs can increase a building s marketability. 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. Additional standards for various aspects of sustainable roofing systems are underway in d08 24 including guides for. The standard helps practitioners identify the characteristics of green roof systems consistent with the core sustainability principles outlined in astm e2432.

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. Green roofs for healthier cities grhc is the governing organization for the green roof community and industry standards in north america. Working in close partnership with spri design guidelines approved by the american national standards institute ansi have been developed for fire wind uplift and root repellency. Standard guide for selection installation and maintenance of plants for vegetative green roof systems.

Standard test method for maximum media density for dead load analysis of vegetative green roof systems. All three types of roofs require specific layers of roofing materials not found on regular 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. E2788 e2788m 18.

Additional standards under development include performance standards for the multiple functions of growing media. E2400 e2400m 19. 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. 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.

Green roofs for healthy cities works to develop standards in support of the further development of the industry. Green roofs have excellent noise attenuation especially for low frequency sounds.