Installing a green roof is an environmentally friendly alternative to asphalt roofs or traditional tiles. Here are the main benefits of installing a green garden on a roof.
Good Reasons to Adopt an Ecological Roof
A green roof is an integrated system of several layers, including an under-roof, a waterproofing layer, a root barrier, a drainage system and soil for growing plants.
The layers must be appropriately constructed and developed to provide a visually appealing long-lasting roof.
Types of Ecological Roofs
Intensive: These roofs are generally large and accessible by footbridges. Sometimes called garden roofs, they usually dominate administrative or residential buildings. They consist of large plants, trees and sometimes bodies of water.
Extensive: this thinner and lighter version of ecological roofs is more like a traditional roof. Usually, low cover plants replace shingles, and the roof is more functional than artistic. The gardens of the extensive roofs are grown mainly on slopes or flat.
Semi-intensive: Semi-intensive ecological roofs include both intensive and extensive roof elements. These roofs achieve a balance between an intensive artistic roof and an extensive functional roof. Lawn and flowers are some of the most common choices, and semi-intensive roofs use their design to create an impact.
Environmental Benefits of a Garden Roof
Garden roofs have been used for centuries, but the popularity of today’s green roofs is increasing because of their ecological qualities. They offer different benefits, including:
Retention of Rainwater: 50 to 90% of rainwater is held back by an ecological roof. Green roofs reduce and delay the runoff of rainwater, avoid waste and reduce potential spills of toxic substances into rivers and oceans.
Noise Reduction: A green roof mutes some of the ambient noise, which is especially important in cities or urban areas.
Reduced Building Energy Costs: Asphalt roofs can heat up in the sun, forcing air conditioners to run at full speed and use a lot of energy. An ecological roof reduces the temperature of the roof and also provides better insulation against the cold.
Reduced Roof Replacement: Replacing a roof or the roof repair can be expensive and produces a lot of waste, especially when the waterproofing layer is damaged. An ecological roof has a long life.
Reduction of Greenhouse Gases: living plants produce oxygen. The more our planet receives green roofs, the better we will be.
Green roofs are good for the environment in many ways. From a small shed on the roof of a large urban building to a garage, the installation of an ecological roof creates a healthier environment and a significant aesthetic asset.