Green Roof Construction Ppt

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 roof construction ppt.

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. Flat roof systems consist of a supp. 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. 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. 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. Because water runs off the roof more quickly a thicker substrate layer is needed. Green roofing technology m.

Green roofs at the building rooftop are old techniques. Living roofs vegetated roofs eco roofs roof gardens definition. The structure of a shallow pitched green roof differs slightly from the structure of a flat roof. Types of green roof 4.

Green roof economics benefits costs npv net present value benefits costs rinaldi buffam et al. Anatomy of green roof 6. 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 planted roof top container gardens on roofs are not generally considered to be true green roofs.

Primary green roof costs are related to installation and maintenance. 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. Of pomology and floriculture 3 4.

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. History of green roof 3. Green building construction materials green building materials are modernly effective and green facility far exceed any short term cost. Steeply pitched green roof 25 40.

Green roof presentation 1. 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. The substrate gives the right amount of nutrients to the plants so your green roof stays nice and green. The root barrier placed above the membrane ensures that no roots pass through and harm the membrane.

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