Ppd On Green Roof

A green roof also known as a rooftop garden or a living roof is a vegetative layer grown on a rooftop.

Ppd on green roof. The two main types of green roofs are extensive green roofs and intensive green roofs. This project along with the other sustainability initiatives will be used as educational tools to encourage the adoption of sustainable practices by residents and commercial businesses in the borough. The designer is referred to section 3 2 4 for information on using smps in series. Green roof presentation 1.

However they only allow for a restricted variety of hardy flora epa 2008 p. Green roofs can be combined with other stormwater management practices smps in series to meet the philadelphia water department pwd stormwater regulations stormwater regulations. A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane it may also include additional layers such as a root barrier and drainage and irrigation systems. They can sustain shrubs trees walkways and benches with their complex structural support irrigation drainage and root protection layers.

Green roof terrace is surrounded by 15 m high building creating shading effect while the light colored roof is directly exposed to weather conditions. The foot or more of growing medium needed for an intensive green roof creates a load of 80 150 pounds 36 68 kilograms per square foot. It can be sloped or flat. Living roofs vegetated roofs eco roofs roof gardens definition.

All three types of roofs require specific layers of roofing materials not found on regular roofs. While on the green roof lower pmv results 1. Unlike traditional black tar roofs green roofs reduce energy costs by absorbing heat instead of attracting it and. The popularity of green roofs has increased in the united states due to their many benefits while pretty green roofs serve a much greater purpose than simple beautification.

Layers of a green roof 7 8 vegetation growing medium. Extensive green roofs are lighter require little maintenance and are able to be planted on sloped roofs. A green roof is a planted roof top container gardens on roofs are not generally considered to be true green roofs. 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.

The green roof project at the municipal building is only one of many environmental projects being pursued by the borough of state college. Green roofing technology m. Intensive green roofs are essentially elevated parks.