Stormwater Management Roof

New municipal regulations and climate change have highlighted the need for responsible stormwater management.

Stormwater management roof.

2019 stormwater management manual for western washington. I technical requirements and site planning. In most urban areas stormwater is. The handbook team included the following consultants and individuals.

We believe the owner should see a return on investment of a green roof beyond merely meeting regulatory requirements. Information about green roofs. The stormwater best management practice handbooks were prepared by the camp dresser mckee inc. A reflective roof coating or white roof is the best known and most applied of all green roof systems.

Green roofs are being increasingly used in urban areas where space constraints limit the use of other stormwater management practices. Research at penn state has shown that green roofs provide considerable reduction in the volume of stormwater leaving a developed site and they reduce the peak rates of runoff. 2012 stormwater management manual for western washington. The cdm lwa team was led by jeff endicott cdm officer in charge and project manager and mack walker lwa project manager.

Blue roofs are non vegetated source controls that detain stormwater either releasing it more gradually to the sewer system or storing it for beneficial reuse. Storms mission is to lead the evolution of storm water management in california by advancing the perspective that storm water is a valuable resource supporting policies for collaborative watershed level storm water management and pollution prevention removing obstacles to funding developing resources and integrating regulatory and non regulatory interests. Maximum water retention with no negative impact on the green roof vegetation. When rain falls in undeveloped areas the water is absorbed and filtered by soil and plants.

Structures must be able to support the loading of green roof materials under fully saturated conditions. These systems reduce roof temperatures and thereby save electricity and are great for almost every application including residences apartment buildings condominiums townhouses retail buildings schools malls and hi rises. Core to the purple roof concept is making green roofs a true stormwater management tool by incorporating retention and detention. Stormwater runoff is a major cause of water pollution in urban areas.

2005 stormwater management manual for western washington vol. The pennsylvania stormwater manual recommends vegetated roofs green roofs as a stormwater low impact development lid practice. This frees up space for maximum real estate potential while realizing all other benefits such energy savings biodiversity habitat creation and. Cdm and larry walker associates lwa team.

When rain falls on our roofs streets and parking lots however the water cannot soak into the ground. These custom roof systems are designed to capture stormwater and release it in a sustainable fashion.