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As the plant layer provides protection from both UV rays and other damaging elements, using a sedum mat layer a roofs life expectancy is doubled. The additional cost of installing living roofs is more than covered in this saving.
The sedum plants for roofs are often supplied as mats, to be rolled onto a roof surface after waterproofing and draining layers have been supplied. Drainage mat is needed on flat roofs with less than 3 degrees of slope, to make sure the plants for living roofing systems never get waterlogged. A handy upside of this is that unwanted weeds will not be able survive on the small amounts of water that sedum roof plants thrive on.
Pollutants and carbon dioxide levels in cities can make life very unpleasant, and levels of pollution are growing. The sedums in green roofs serve as a natural filter pulling pollution and contaminates out of the air as well as the water system.
Sedum plants make excellent green roofing plants. Because they are succulent they have good drought resistance for the summer months as storing water in their leaves. They are small [link widoczny dla zalogowanych], ground spreading plants and so protect the roof membrane, and spread across the roofs easily.
The while bees haven’t been the focus of UK studies, other invertebrates have been. While “brown field” sites (land that was use for industry, but is now effectively wasteland) have in the past become havens for rarer British invertebrates. Sadly soaring demands for land have left the wildlife populations declining; green roofs are providing ne
Bees are a common site on green roofs, and are often used in commercial literature as a pretty image to sell their products but studies have proven this image to be true. The pollen provided by the plants does indeed encourage bees, and populations rise in areas that have a lot of green roofs [link widoczny dla zalogowanych], as studies in Switzerland have proven.
In the current economic climate, and with ecology foremost in many people’s minds, green roofs are becoming a very popular choice. Green Sedum roofs are very low in maintenance, they save money by providing a natural form of both insulation and cooling, protect the environment and can look wonderful.
Sedum Plants
Read on
Green Roofing
How to Create Green Roofs on Garden Buildings
Plants for Extensive Green Roofs
Water Management
Protect and Insulate with a Living Roof
As further upside to having layers of soil, matting, and plants on a roof is the green roof's insulating properties. Saving energy is a great bonus, both ecologically and financially. Sedum roofs reduce heating costs by adding mass and thermal resistance to a roof. They also provide cooling in hot weather, by a process called evaporative cooling, as the sun pulls liquid from the soil and the pants the heat energy is consumed rather further baking a felt or tiled roof.
Runoff water can be a big problem in built up areas with little natural drainage. In heavy rain the amount of water that drains and sewers need to deal with can quickly become overwhelming leading to streets flooding or running directly into rivers. The contaminates from untreated drain water are very detrimental to wildlife in rivers. Green roofing systems slow the movement of run off water, allowing drains and sewers time to process more water, and keep more water within our services. Sedum plants also filter pollutants and heavy metals out of rainwater, adding an additional ecological benefit.
Having a layer of soil and plants on green roofs also helps to insulate a building for sound [link widoczny dla zalogowanych], the soil helps to block lower frequencies and the plants block higher frequencies, so low level disturbance from sound is mitigated.
Wildlife Habitat
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