What is a Green Roof?
Rooftop gardens are most easily used on flat roofs. However, if designed correctly, a rooftop garden can be placed on a low pitch roof.
Green roofs are also called rooftop gardens.
Planning a rooftop garden
In order to build a rooftop garden, you will need to take into consideration the size of your roof and plant selection available in your area. Ideal plants for rooftop gardens with a few inches of depth are plants that are drought tolerant, such as low growing grasses, sedums, and catcus-like plants.
If the depth of the rooftop garden is several feet, shrubs and small trees can be used.
In most cases, it is best to hire a professional to build the rooftop garden for you. A professional should be able to work with different roofing systems, soil mixes, manufacturers & designers, and climates.
Extensive green roof vs Intensive green roof
An extensive green roof has low lying plants designed to provide maximum groundcover, water retention, erosion resistance, and respirative transpiration of moisture. Extensive green roofs usually use plants with foliage from 2 to 6 inches and from 2 to 4 inches of soil.
Extensive green roof plants should have most of the characteristics listed below:
An intensive green roof is intended to be more of a natural landscape, installed on a rooftop. Intensive green roofs may use plants with foliage from 1 to 15 feet and may require several feet of soil depth.
Benefits of a Green Roof?
There are several benefits of growing a rooftop garden. Some of the most common benefits are:
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