- Reduced energy needs. A living roof acts as an insulator, reducing the energy needed to heat and cool your home or building.
- Reduced greenhouse gases. Living green plants convert carbon dioxide to sugars, producing oxygen as a byproduct.
- Reduced urban heat island effect. The cooling effect of evapotranspiration and the lower Solar Reflective Index* of a living roof result in lower overall heat given off by the roof surface. (*SRI: a measure of the energy a material absorbs, then releases as heat.)
- Enhanced stormwater management. Slick, impermeable roofs shed water quickly and efficiently, contributing to both higher and faster peak runoff and flooding in densely developed areas. A green roof’s plants and soil slow both the rate and the energy of runoff.
- Enhanced water quality. Plants and soil in a green roof absorb and break down pollutants in rainwater. The slower flow rate of stormwater equals less erosion and subsequent sedimentation downstream.
- Added habitat. A living roof provides shelter and food for local birds, bees, butterflies and other fauna.
- Improved value and curb appeal. This is a no-brainer — just look at the pictures!
- Improved quality of life. Admit it: You’re happier when you’re surrounded by beauty … and I’d argue that most ordinary roofs fall in the category of blight rather than grandeur.