Modern green roofs are a relatively new trend dating back to parts of Europe in the sixties, but the principles have been around for centuries. New roofing technologies have given way to better waterproofing materials which has allowed for more options when considering green roofs for all types of buildings.
There are two vital types of green roofs which require different techniques when implementing their design. The two types are either intensive or extensive. Intensive green roofs are currently seeing the largest growth in the commercial field. This roof design offers a usable place that requires more maintenance, whereas an extensive green roof has been the most commonly seen type of roof in Europe for centuries, and requires nearly no maintenance.
Intensive green roofs typically have deeper planting beds and require bonus irrigation, but can be used to grow gardens of vegetables or trees. These green roofs can turn an otherwise unused rooftop into a place that can be leased out or used as a simple rooftop park.
An extensive green roof only needs to be monitored, and might need someone to fertilize and weed it once a year. These green roofs are best used on buildings that do not have simple accessibility to the roof, or on roofs with a pitch like the typical home.
In today’s push to be more environmentally friendly, more people in Southern California and the Los Angeles area are retrofitting their buildings to incorporate green roofs, as well as water collection systems. There is no point in wasting money on utility expenditure when even the simplest green roof can help to cut the rising cost of energy and water in the area.
If the thought of saving money on utilities is not enough, there are also some fantastic tax credits being offered as an incentive to going green.