How Does A Vegetated Roof Work

They are known to extend the lifespan of the roof of a building by protecting it against uv radiation and other elements such as snow and ice.

How does a vegetated roof work. As the name suggests vegetative roofs are a design in which plants are used to create a green space on top of a building. The added weight of a vegetative roof results in an increased degree of sound insulation. A green roof or rooftop garden is a vegetative layer grown on a rooftop. Using green roofs in cities or other built environments with limited vegetation can moderate the heat island effect particularly during the day.

Vegetative roofs have important acoustical benefits especially for higher frequency sounds. A traditional vegetated roof has the five layers of vegetation engineered growing retention drainage and root barrier. Green roofs are also known as vegetated roofs or eco roofs they have become more popular in recent years which is unsurprising because of the incredible ecological benefits they have. Typical green roofs consist of multiple layers including a durable waterproof foundation a root management system drainage layers and some type of growing medium.

They fall into three main categories extensive intensive and semi intensive. Green roofs provide shade remove heat from the air and reduce temperatures of the roof surface and surrounding air. Vegetative roofs can absorb a portion of the sound that otherwise bounces off hard roofing surfaces. See the referenced ghent university study for more information.