Green Roof Construction Ppt

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

Green roof construction ppt.

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. Green roofs at the building rooftop are old techniques. Green roof economics benefits costs npv net present value benefits costs rinaldi buffam et al. Flat roof systems consist of a supp.

Green roof presentation 1. Steeply pitched green roof 25 40. Of pomology and floriculture 3 4. 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. 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. Quality of the roof structure 5. As roots grow they can penetrate the waterproofing membrane and create leak locations.

Green building construction materials green building materials are modernly effective and green facility far exceed any short term cost. Because water runs off the roof more quickly a thicker substrate layer is needed. Aravind mbbs i year dsmch perambalur 2. The structure of a shallow pitched green roof differs slightly from the structure of a flat roof.

One of the most famous ancient green roofs was the hanging gardens of babylon constructed around 500 bce. 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. Primary green roof costs are related to installation and maintenance. Green roof definition 2.

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. 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. Living roofs vegetated roofs eco roofs roof gardens definition.

A green roof is a planted roof top container gardens on roofs are not generally considered to be true green roofs. 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 root barrier placed above the membrane ensures that no roots pass through and harm the membrane. Plants for green roof 7.

Types of green roof 4.