Value Of Green Roofs

An extensive green roof can reduce sound from outside by 40 decibels while an intensive green roof can reduce sound by 46 50 decibels peck et al.

Value of green roofs.

Green roofs are also known as vegetative or eco roofs. They provide shade to the top of a building evapotranspiration. Increased r value a measure of the resistance of a material to heat flow of the roofing system along with reduced temperatures on the. Green roofs reduce the temperature of the building and the surrounding air in multiple ways.

A green roof provides a rainwater buffer purifies the air reduces the ambient temperature regulates the indoor temperature saves energy and encourages biodiversity in the city. Although there are no precise definitions of them an extensive green roof has a shallow growing medium usually less than six inches with a modest roof load limited plant diversity minimal. They fall into three main categories extensive intensive and semi intensive. The plants in a green roof absorb water through their roots and then use surrounding heat from the air to evaporate the water while some roofs can reach temperatures of up to 90 f in the summertime these two features can allow.

Although installation of a green roof usually involves higher upfront costs than a traditional roof there are many economic benefits that can make up for this. Benefits of a green roof. Thermal reduction and energy conservation. Green roofs have excellent noise attenuation especially for low frequency sounds.

Green roofs improve and reduce energy consumption. A 2005 study by brad bass of the university of toronto showed that green roofs can also reduce heat loss and energy consumption in winter conditions. Green roofs are part of climate proof construction. A green roof has many benefits at economic ecological and societal levels.