Living in a metro is tough. With the fast pacing life and lifestyle, it’s difficult to keep yourself attached to the grassroot level of emotions and values we grew up with. One such memory we all metroites can relate to are the presence of green gardens and lawns in our homes. When the society trend had still not peeped in our cities, all the homes or houses, use to have a lawn or garden. But with the apartment culture, a garden and lawn has curbed into a green corner. However hard we try, it has become a dream because of space and maintenance issues. Thus, came the solution of Green roofs. It’s a very rare and effective way of having a solution to your space limitation as well a lot of positive effect into the environment.
They can improve stormwater management by reducing runoff and improving water quality, conserve energy, mitigate the urban heat island, increase longevity of roofing membranes, reduce noise and air pollution, sequester carbon, increase urban biodiversity by providing habitat for wildlife, provide space for urban . Planting the rooftops of urbanized areas brings many benefits to public, private, economic and social sectors, as well as to the local and global environments. So, here I am gonna state some very naturally effective way to have a green roof in your building or society.
- It absorbs Rainwater: A rooftop green space will absorb rainwater (upto 80%) and thus, reduces the chances of flooding, specially if the gutters in your locality overflow from runoff. Isn’t it a wonderful method of warding off the chances of floods? Other uses are:
- Green roof growing media retain rainwater and, together with plants, return a portion of this water to the atmosphere through evaporation and transpiration (evapotranspiration).
- Stormwater that does leave the roof is delayed and reduced in volume.
- Stormwater that runs off a green roof is cleaner than runoff from a conventional roof.
- Retention and delay of runoff eases stress on stormwater infrastructure and sewers.
- Cost savings from decentralized stormwater mitigation reduces the need to expand or renovate related infrastructure.
- Extends roof life: Rooftop gardening or green roofs, doubles or sometimes triple the life of a roof material, which grows brittle and cracks from extensive sunlight.
- Absorbs sunlight: By soaking up the sun’s rays, a green roof can help keep the interiors of the home cooler by as much as 6-8 degrees Fahrenheit. Green roofs cover the waterproofing membrane, protecting it from UV rays and extreme daily temperature fluctuations. This protection extends the lifespan of the waterproofing twice as long as conventional roofing, meaning that membranes under green roofs last twice as long as those on traditional roofs.
- Reduced material waste from re-roofing.
- Less frequent re-roofing, less costs over time.
- Decreases outside noises: Greenery on your roof acts as a sound barrier and exterior noises are reduced by around eight decibels more than a traditional roof. Strange but true. Such a effect greenery carries.
- Keeps temperatures down: It helps the environment by helping counteract the urban heat island effect, which is where city buildings capture sunlight and heat up the area. I guess, this information clearly states the reason for difference in temperatures between a city and village. Urbanization has although given us lots of reasons to live our lifestyle but has taken a lot from the environment and our future.
- Increases efficiency: Green roofs can increase the efficiency of rooftop solar panels by helping to absorb heat and making the panels more effective. Green roofs reduce the heat flux through the roof, and less energy for cooling or heating can lead to significant cost savings. Shading the outer surface of the building envelope has been shown to be more effective than internal insulation.
- In summer, the green roof protects the building from direct solar heat.
- In winter, the green roof minimizes heat loss through added insulation on the roof.
- Energy conservation translates into fewer greenhouse gas emissions.
- Improves air quality: A rooftop garden will clean the air of pollutants, helping reduce the quantity of hazardous waste we breathe in.
- Feeds your pets: Maintenance of a green roof is easy, you can either hire someone to clip it or just buy a couple of guinea pigs and chicken. Ground-nesting birds, such as Killdeer, use green roofs for nesting and raising their young.
- Resists fire: Since plant life retains water, your roof will act as a natural form of fire assistance.
This will limit the use of electricity and henceforth reducing the cost of utility bills. Just imagine the decrease in usage of air conditioners in home, which in turn will reduce the amount of hot gases into the environment. It will be a great breather for mother nature, who is fighting with increasing valor by each passing day because of the extensive air pollution. Also, in winters the cost of heaters and winter heating appliances will be reduced.
These luring benefits of having a green roof will surely make you think of having one in your surroundings, particularly buildings and society. They not only have some building owner’s advantages, they contain lots of community and environmental benefits as well. So think hard over it and determine yourself today for making your roof a green roof by beautiful landscaping and gardening. Some very innovative, cost effective and efficient techniques are available which can help you attain your desired green roofs with their well crafted designs and implementations.