Green Roof Construction Ppt

Green roofing a tool for ecological engineering andrew l myrthong 2014 12 126 dept.

Green roof construction ppt.

As roots grow they can penetrate the waterproofing membrane and create leak locations. How green buildings are built furthermore the design must also take into account where shading comes from in order to hold the building itself well lit but keep air conditioning costs down. Anatomy of green roof 6. One of the most famous ancient green roofs was the hanging gardens of babylon constructed around 500 bce.

Aravind mbbs i year dsmch perambalur 2. Of pomology and floriculture 3 4. As green roofs contain living and growing materials a protection layer and a root barrier are one of the most important elements of the assembly. Green roofs at the building rooftop are old techniques.

Plants for green roof 7. Green roof presentation 1. The root barrier placed above the membrane ensures that no roots pass through and harm the membrane. The structure of a shallow pitched green roof differs slightly from the structure of a flat roof.

Quality of the roof structure 5. Many millions of square meters of flat roof are not yet green this means wasting an enormous potential of living space. Green roofing technology m. Primary green roof costs are related to installation and maintenance.

A green roof is a planted roof top container gardens on roofs are not generally considered to be true green roofs. Steeply pitched green roof 25 40. Because water runs off the roof more quickly a thicker substrate layer is needed. Flat roof systems consist of a supp.

Green roof economics benefits costs npv net present value benefits costs rinaldi buffam et al. At ancient times people constructed the green roofs on the rooftops as the rooftop gardens for insulating qualities and to reduce the adverse effects of urbanization. In prep assumes a 40 year lifespan of the green roof and a 20 year lifespan of a conventional roof model based in cincinnati with cso s present largest cost of green roof is related to installation but roof replacement costs are reduced. A green roof is a green space that is created by adding various layers of plants and a growing medium to the top portion of a traditional roofing system.

The substrate gives the right amount of nutrients to the plants so your green roof stays nice and green. Types of green roof 4. History of green roof 3. Gsa s green roof report estimated that green roofs on commercial and public buildings provide a payback based on 50 year average annual savings of about 6 2 years nationally internal rate of return of 5 2 and an roi of 224 based on a net present value of 2 7 square foot.

Note that it is not like a traditional roof garden in which planting is done in free standing containers as well as planters that are placed on an easy to access roof terrace.