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10 reasons for having a green roof

The environmental, ecological and economic benefits of green roofs are endless. These 10 reasons will give insight into what a green roof encapsulates and why you need one in your new home.

1. Eases storm water management

Green roofs reduce rainwater run-off and improve water quality. The soil on the green roof absorbs and retains the water from rainfall then releases the excess water slowly. Variances in green roof designs such as the depth of the soil, the type of drainage layer and the roof slope impact its ability to manage stormwater.

2. Improves air quality and overall wellbeing

If you live in dense urban areas, you are at a greater risk of respiratory diseases, cardiovascular problems and lung cancer. Concentrated urban areas are exposed to high levels of pollution. The lack of opportunity for natural vegetation in urban density adversely affects the quality of the air. Natural vegetation, especially trees, are very effective in filtering the gaseous pollutants in the air. The larger the plant the more effective the plant is in removing these nasty air pollutants such as nitrates, sulphates, carbon monoxide and nitrogen dioxide. Even so, the smallest of plants such as grasses can clean the air you breathe. Humans are inherently drawn to nature so having your very own green roof will improve your quality of life thus have a positive effect on your wellbeing.

3. Greater lifespan of roof membranes

The varying temperatures and ultraviolet radiation deteriorate the membranes of roofs. Green roofs provide a protective layer unlike traditional roofs, giving the membranes of green roofs longevity.

4. Lowers noise

Green roofs are a natural method of sound insulation, blocking out the exposure to loud road traffic in urban areas.

Pittwater Rd Manly Semi, designed by Noho Architecture, Built by Ezy Reno. Photography by The Guthrie Project.

5. Welcomes biodiversity

Local, native plantation on your roof provides a habitat for wildlife to shelter and feed.

6. Conserves energy

The vegetation layer acts as insulation. The insulation generated by green roofs reduces the need to use electricity to heat or cool the house.

7. Relieves the urban heat island effect

The urban heat island effect is the higher temperatures in urban or metropolitan areas. Green roofs have the ability absorb this energy from the sun and convert it to sensible heat, cooling the air on hot days and nights.

Pittwater Rd Manly Semi, designed by Noho Architecture, Built by Ezy Reno. Photography by The Guthrie Project.

8. Carbon sequestration

Plants absorb water, sunlight and carbon dioxide to generate their source of food. The carbon is stored in the plants’ sugar and starches thus is no longer in the atmosphere.

9. Agriculture at your rooftop

Green roofs offer the space for urban residents to grow food crops. Depending on the type of green roof, various vegetables and herbs can thrive on your rooftop.

10. They’re beautiful!

Green roofs bring the beauty of nature to you. Utilising a roof that can be viewed from inside your home offers a great outlook in an urban setting. The flowers, little birds and butterflies all create an ever-changing view from the comfort of your urban home.

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