Rooftop gardens have become more and more popular over the past few years. With such an abundance of green roofs available, it can be difficult for homeowners and business owners to know whether they should install one on their property. So what are some reasons why a rooftop garden might be right for your home, business or community?
Help the drainage system.
Some roofs can be designed to absorb rainwater and hold it for re-use. They can also be designed to slow down the release of rainwater, allowing it to soak into the ground. This reduces pressure on city drainage systems and helps prevent flooding in low-lying areas.
Roofs provide a space for plants, which absorb carbon dioxide from the air during photosynthesis, helping reduce greenhouse gases that contribute to climate change.
Rainwater captured on rooftops provides an important source of drinking water as well as irrigation for food crops such as salad greens or tomatoes. It may also be used as a source of energy by harnessing solar panels above gardens or by pumping water through pipes under pressure to heat other parts of buildings (known as “geothermal” systems).
They reduce greenhouse gases in the atmosphere.
In addition to adding aesthetic appeal to your building, rooftop gardens can also help reduce the heat islands effect. Heat islands are areas of high temperature due to high concentrations of buildings and pavement in urban areas. Rooftop gardens not only reduce greenhouse gas emissions, but they also reflect the sun’s rays back into space, reducing the temperature of both the air and buildings surrounding them. This helps reduce air conditioning costs for businesses as well as cuts down on energy usage overall.
They provide oxygen as they grow.
Green roofs absorb CO₂ (carbon dioxide) from the air and release oxygen, which helps to counteract global warming. They also help reduce urban heat island effect by reducing temperatures in cities, allowing for better air quality. Green roofs also have a positive impact on local water runoff: they can help curb stormwater runoff and at the same time reduce sewer overflow by absorbing rainwater before it reaches storm drains or sewage systems. On top of all of those benefits, green roofs are great at absorbing dust particles and other pollutants from the air that then get filtered into the soil below them—another way they can improve overall air quality!
They improve air quality.
Your roof garden can help to improve the air quality in your home. Plants absorb dust and other pollutants from the air, which in turn improves air quality and reduces smog. By planting a rooftop garden on your property, you’ll be less likely to have to deal with harmful smog or greenhouse gases in the atmosphere.
They reduce energy costs due to their insulation properties.
Another benefit of rooftop gardens is their insulation properties. They are great at keeping heat in during winter and out during summer, reducing the need for air conditioning and heating. This can help reduce your energy bill by cutting down on your utility costs.
They prevent erosion of the soil below.
The protective layer of most rooftop gardens is designed to prevent water from leaking into the building. The waterproofing material helps to keep rainwater out, and allows for a better drainage system. This also prevents any erosion of materials in the soil below (such as concrete or asphalt) over time.
The thickness of your roof’s waterproofing material is determined by how much water you expect it to withstand before it starts leaking into your building and causing damage.
They offer a place where people can relax.
Rooftop gardens offer a place where people can relax and socialize, improving overall health and wellbeing!
Benefits of rooftop gardens include:
- Improved social interaction. Rooftop gardens are often used for events such as markets or gatherings of friends. This can help overcome feelings of isolation by providing an opportunity for residents to interact with each other in person. Additionally, rooftop gardens are often used as gathering places for community groups and organizations that may not have access to other public spaces in their neighborhood (e.g., churches).
- Increased physical activity. Some research has shown that green space on the ground floor of buildings has been linked to higher levels of physical activity among those who live there; however, this is not necessarily true for green space on the upper floors (i.e., rooftops). A recent study compared two different types of green roofs: pervious (highly permeable) vs non-pervious (less permeable). The researchers found that people who lived within view distance (~15 meters) of either type were more likely than those farther away (~30 meters) from either type to report performing moderate-to-vigorous physical activity outside more than once per week.
They have a positive impact on the environment.
So what kinds of benefits can you expect to see when you install a rooftop garden?
- Aesthetics: In addition to improving the appearance of your building, rooftop gardens are an excellent way of sprucing up neighborhoods. They may even lead to increased property value and make it easier for your company or organization to attract new employees.
- Health: Rooftop gardens help reduce energy costs by producing their own shade and reducing the amount of air conditioning required in high-rise buildings or other structures with flat roofs. They also absorb dust and other pollutants from the air, keeping them away from people nearby as well as making them cleaner overall (the less dirt there is on top of a building’s roof, the less likely it is that dirt will fall off into someone’s eyes).
Between the environmental advantages and the health benefits of rooftop gardens, it’s no wonder that more and more cities are adopting this practice. As urban environments become increasingly crowded, we need all the help we can get to offset their negative effects on our health and wellbeing.