What Do Green Roofs Do?

Green Roof System On Public Building

Where Are Green Roofs Used?

In many cases, a green roof system may be utilized for both residential, slanted roofs, and for commercial, flat roofs. It stands to be noted that there are two generally recognized types of green roofs, which differ in cost, depth of growing medium, plant types, and the amount of accessibility or use. Extensive green roofs are simpler, lighter weight systems that are most commonly seen in residential buildings. The concept of the extensive green roof is built with the provision that there is no need for any human interaction or intervention. The plants used in extensive green roofs are hardy, weather-resistant, and rugged.  By contrast, intensive roofs are commonly used for public areas, such as commercial buildings where people can walk along and participate in plant growth. The plants utilized for intensive green roof applications are more varied.

How Long Does a Green Roof Last?

General estimates for the length of a green roof life range from thirty to fifty years. Interested customers should note that when a green roof is installed, it protects the roof membrane, which can extend the life of a roof by two or three times beyond its typical lifespan. In Europe, where builders have incorporated the green roof into the landscape, they have been building green roofs since the 1960s.

Are Green Roofs Cost Effective?

According to certain studies, results suggest that green roofs are not cost-effective on a private cost basis, however, multi-family and commercial building green roofs are competitive when social benefits are included. It is important to note that there is a wide range of other factors and benefits that lend green roofs to being an excellent roofing choice determinant on positive environmental impact and overall longevity.

What Are the Advantages of a Green Roof?

A Green roof has a wealth of advantages that are worthy of consideration. With increased population growth and urbanization, there is a growing necessity to recover important green space. The installation of green roofs is one of the critical ways that human beings can positively impact the environment. Green roofs provide numerous environmental, economic and social benefits. For business patrons to be able to walk across a commercial roof and smell flowers and enjoy nature has a certain appeal. For some, the necessary migration of stormwater runoff is one of the primary benefits of a green roof. Speedy runoff from a roof can exacerbate flooding, increase erosion and could result in raw sewage being dumped into sewers. Many prospective clients are aware of these problems and invest in green roofs as a suitable roofing alternative.

What Are the Two Types of Green Roofs?

As previously discussed, there are two different types of green roofs. Realistically, the two different types of green roofs can be separated into three different types: intensive, semi-intensive, and extensive. Extensive roofs are described as thin, lightweight roof systems that only have a depth of approximately six to twenty centimeters deep. Semi-intensive green roofs have a slightly deeper thickness, while intensive green roofs are recognized to have a thickness of twenty to one hundred centimeters. Intensive green roofs can support a wonderful variety of plants due to their accommodations, with plant options ranging from shrubs to small trees.

How Does A Green Roof Help the Environment?

Green roofs help reduce stormwater runoff. During heavy or continuous rain, runoff can easily overwhelm the surrounding built-up stormwater infrastructure. This excess of stormwater runoff can potentially damage waterways and influence the fish habitat. Plants growing on a green roof help retain rainwater. This rainwater is returned to plants, which return a portion of this water to the atmosphere through the process of evaporation. This results in the portion of stormwater that does run off the roof being cleaner, and healthier for the environment.

Green Roof for Building

It is important for homeowners to consider the possible causes of a water leak for their green roof. Essentially, the underlayment or underlying roof membrane can eventually deteriorate. For commercial buildings, which do endure a certain measure of wear and tear, this can be especially problematic. Nonetheless, the international community of roofer and enterprising architects agree that green roofs comprise a dazzling streamlining of environmentally friendly roofing alternatives. Rooftop gardens on top of commercial buildings provide a special benefit for businesses that conduct international relations and business deals, as a view of the skyscrapers from the vantage of a garden is uncommon and particularly extraordinary.

Green Roof vs Cool Roof

What primarily benefits the property owner will primarily benefit the roof. One of the things that are most important to consider is whether or not a cool roof would be more beneficial. Please consider the following bulleted list to determine what the benefits are of a cool roof.

  • Cost benefits. The cost to install a cool roof is not necessarily different from the cost of installing a non-cool roof, making cool roofs exceptionally cost-effective.
  • Energy savings. Cool roofs achieve the greatest amount of cooling savings in hot climates. Commercial property owners will see the maximum amount of energy savings once a non-cool roof is transformed into a cool roof alternative.
  • Moisture control. It is important to consider that moisture will always affect a roof, even a cool roof. In warm, humid environments, mold and algae can grow. Thus, in this case, a cool roof does not necessarily stand apart from a green roof.
Green Roof System on Residential Property

Green Roof Benefits

Green roofs provide a bevy of important benefits for residential and commercial property owners. Green roofs provide a rainwater buffer in addition to purifying the air. Such roofs reduce the surrounding ambient temperature and regulate the indoor temperature. It can save energy and green roofs encourage biodiversity in the city. There are many aesthetic, economic, ecological and societal benefits to green roofs.

If you think you need a green roof system in Fort Worth, TX, call McStay Quality Roofing at 817-349-0016 to speak with our staff about making an appointment for your green roof system today!