The concept of a roof garden is not a new one. In fact, it is centuries old!. If you live in an urban area, your dreams of having a garden may be difficult to achieve. Not so if you consider a roof garden!
More and more communities are encouraging their residents to plant roof gardens. The environmental and psychological benefits are numerous. Not only is gardening a calming and relaxing activity, which can reduce stress related illnesses, it also has great benefits for the environment. Building a rood garden on your home or apartment building decrease storm water runoff, reduce fire risks, help decrease heating and cooling costs and can protect your roof from the effects of ultra-violet light and frost.
There are three types of roof gardens and the three types related to the amount of maintenance they require, the depth of soil and the type of plants they will support. They are: Extensive living roofs These are easy to maintain and use little soil. Extensive living roofs are lightweight and lend themselves well for use on sheds, garages and small extensions. As they tend to be harsh environment, suitable plants are ones that are found on cliffs or other harsh environments. While this type of roofs gardens are the easiest to maintain, they also have the least visual appeal. Semi-extensive living roofs These garden roofs are more decorative as they have deeper soils which can support a greater variety of plants. However, the increased soil depth makes these types of roof garden more heavy, so a sound structure is require to support them. They combine the relatively low maintenance of extensive living roofs with a more appealing appearance. Intensive living roofs These are full-fledged gardens and require large and strong support structures.