What is a Green Roof? Why Sedum?
Green roofs and walls have existed throughout the world for centuries. Recent worries about sustainability, climate change, our carbon footprint and economic issues have meant that we are witnessing a growing interest in this form of green roofing wall coverage.
There are many types of Green Roofs or Walls that we can supply from the simple Sedum plant roof in our green roof systems to the wild life roof garden, or exhibiting your logo on the roof of office buildings. In the future we would hope to see many more of these types of green roof, replacing the traditional tiled roof.
We are happy to offer a wide degree of service from simply helping you choose the correct plants to actually building/adapting your roof or walls for this form of coverage. On other pages on the site you can see how to make a green roof, the advantages of a green roof and DIY methods.
The word Green Roof has come to describe a roof which is green in the economic sense. In other words it is energy efficient or sustainable. It has many different names such as a living roof, biodiverse roof, Sedum roof, brown roof, eco-roof, grass roof, turfed roof, etc. Basically, it is a living roof which is placed on a building instead of a conventional roof. There are various components that are necessary plus the main structure of the building must be tested before any attempt to put a green roof onto a large expanse of roof.
There are numerous benefits surrounding green roofs including helping to control water in areas of flash flooding as it absorbs more water slowing the release of rainwater. It can be used as a filtration method capturing the run off water and using it for other uses such as brown water (flushing toilets etc). Experiments have shown that a green roof such as a Sedum Roof can help both with insulation during colder months and a cooling effect during hotter times. One of the main and most popular reasons for having a green roof, whether it be on your house, shed or garage is that it will increase the biodiversity of wildlife including insects and birdlife. This makes it so much more attractive to look at than a conventional tiled roof. A green roof will also filter pollutants in the atmosphere especially carbon dioxide, lowering the carbon footprint but also helping lower disease rates such as asthma. If all the roofs in London had green roofs the air would be far cleaner.
Financially it can increase the roof life considerably and nowadays goes a long way to even increase the real estate value of your property. There are sometimes local tax incentives which may help but certainly in the UK the local councils are very keen to promote the use of Green Roofs and sometimes will not pass building permission until a percentage of the roof is a green roof.
Different Methods of Production of a Green Roof
Components of Green Roofs
This is the basic method used for intensive, extensive or semi-extensive growth. Different depths of substrate are used according to the type of construction required. There is also a modular version which Sedum Green Roof now supplies which includes the drainage and substrate layer in Pods. The Sedum Modular or S-Pod/Sedum Tray comes in trays and can be placed straight onto a waterproof roof.
It is very difficult to cost a green or living roof as there are so many different varients but a well designed and installed green roof system will probably cost something in the region of £65 per square foot, although this can be less if the area is larger or it is a simple roof ie a shed or garage roof. It is all dependant on the type of roof, the structure of the building and the type of plants used. For an estimate or just a chat contact Sedum Green Roof. We can advise you on your needs with no obligation. Just phone us and we can give you some ideas.
The disadvantage of the higher initial cost but the fact that a green roof protects the waterproof membrane from adverse weather conditions, it actually increases the life expectancy of a roof, sometimes double or even tripling life expectancy so in the long term works out economical. Financial incentives are now being offered in some countries.
We find that selling on line can get confusing and many people make mistakes. Just ring us and we will advise the exact quantities needed to make your Green Roof.