Green Roofing – The Benefits of a Roof Garden

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A roof garden, which is also sometimes termed a rooftop garden, is any garden that is located on the roof of a property.Roof gardens are created for a variety of reasons. In addition to the obvious attraction of adding this type of decoration to a roof, roof gardens can also be used to produce foodstuffs, and/or as a means of temperature control. the practice of using a rooftop garden to produce food is often called rooftop farming. Because the weight of soil, roof gardens frequently employ hydroponics (where water is sprayed on the roots of the plants to stimulate growth) or aeroponics (where the growth medium is either air or mist).

Environmental Benefits
Roof gardens are most frequently seen in towns and cities where the space available for a conventional garden is at a premium. Because flora possesses the ability to reduce the aggregate amount of heat that a property absorbs it has the consequential effect of reducing energy consumption. Roof gardens have the general effect of cooling the environment and many believe that they can reduce the incidence of smog. In addition to providing a means of adding resistance to heat radiation, rooftop gardens also help to reduce the amount of rain run off from the roof. This means that, during periods of peak flow, such as a severe rainstorm, the rate and volume of water that flows from the roof is mimimised in comparison to the amount that falls from a solid roof. This, in turn reduces the risk of drain overflow, which is a common problem in many urban settings.

Agricultural Uses
As we have already mentioned, there is a significant lack of space for agricultural and gardening uses in urban settings. This deficiency can be resolved through the creation of roof gardens. The two primary methods of cultivation are through the use of hydroponics, which removes the need to use soil, which is extremely heavy, as the cultivation medium or in containers. The latter method has the added benefit of reducing the stress that a roof garden can cause to a roof’s waterproofing system, although the membranes that are employed to keep the roof protected against water infiltration in a conventional rooftop garden are sturdy and extremely reliable.

The Roofers SW  Kensington Roof Gardens

Additional Uses
In addition to the clearly perceived environmental benefits of a roof garden there are other beneficial uses. The most obvious of these is to improve the aesthetic appearance of a property or neighborhood, as is evident from the image above of the famous rooftop garden in Kensington, London.. A skyline that is highlighted by a number of roof gardens looks considerably more attractive that one that lacks such features. Many believe that this can make a busy town or city are far less stressful place to inhabit. Additionally, roof gardens provide an attractive location for wildlife, with birds benefiting from the rich abundance of insect life that they can provide a home to.

Summary
Roof gardens are not for everyone, not least as they are only appropriate if you have a flat roof. They also require a lot of time and effort. However, if you do want to create a rooftop garden on your property the aesthetic and environmental benefits will make your efforts worthwhile.

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