Going Green with Grass Roof Tops

Posted by Deepika singh on 18 Mar 2011 06:13 PM

Don’t have enough place to grow that lovely garden you’ve been thinking of? Well, how about using your roof to grow flowers and trees? In Norway most of the houses have been covered with turf (also called sod roofs) of different varieties. A number of turf roofs have flowers mixed in with the grass, and a few have small trees. The tradition is going on for more than hundreds of years now. There are great advantages of turf roofs. They are very heavy, so they help to stabilize the house; they provide good insulation; and they are long-lasting.

In Scandinavia roofs are covered with birch bark and sod since prehistory. In rural areas sod roofs were almost universal until the beginning of the 18th century. During the 19th century, tile roofs gradually superseded sod roofs except in remote inland areas. Corrugated iron and other industrial materials also became a threat to ancient traditions. But just before extinction, the national romantics proclaimed a revival of vernacular traditions, including sod roofs. A new market was opened by the demand for mountain lodges and holiday homes. At the same time, open air museums and the preservation movement created a reservation for ancient building traditions. From these reservations, sod roofs have begun to reappear as an alternative to modern materials.

Since 2000, an award is also given to the best green roof project in Scandinavia by the board of the Scandinavian Green Roof Association.

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Going Green with Grass Roof Tops candinavian Green Roof Association Scandinavia Norway sod roofs turf roofs holiday homes industrial materials
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Extensive roofs (click here for more) are more often used for single flmiay and multi-family residential buildings. They are also best suited to spaces where people are seldom going to be walking on the roof surface. People walk on them mainly for maintenance. These green roofs also fit outbuildings like sheds and garages very well. Other names include âlow profileâ and âperformance.â The design is supposed to give high performance to water use and thermal advantages, while keeping the overall weight of the roof low.

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Matee

Holy Toledo, so glad I cilkced on this site first!

c-dub

Birch bark.

Tmoore

What made up the \'waterproofing layer\' before the invention of plastics

c-dub

There\'s a waterproofing layer between the green roof and the building; the water drains across this layer just like it would on a normal roof. However, the waterproofing generally lasts longer on a green roof, because it\'s protected from thermal swings and UV degradation. As far as the roof caving in, you just have to make sure that the structure can carry the extra weight, which is can be considerable.

AC

never understood how this is done w/out soggy roof caving in.Explain please.

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