Snellville Green Roofer

A green roof in Snellville is known by several names such as ecoroof or living roof. They have been built on buildings for centuries. Many countries in the world have green roof subsidies or programs that encourage ecoroofs. Scandinavia has long had farm house buildings that have sod covered roofs. Some cities in the US are known for their living roofs such as Chicago’s City Hall building.

Basically a green roof is a roof that has vegetation and a growing medium. It will cost more than a standard asphalt shingle roofing application. Rooftop garden costs also depend on the type of green roof installed. There are several differences among green roofs in Snellville and some applications that may or may not be defined as a green roof such as a container garden green roof.

Membrane Roof


What Is Green Roofing?


Sod roofs have been part of Scandinavian structures for generations. These are homes where sod (or grass cover) is planted on top of layers of birch wood. The style is mostly associated with log cabin type dwellings. However, it wasn't until Germany in the 1960's that the modern take on "green" roofs used for environmental purposes came into vogue. Now, most of Europe has government incentives and encourages builders to use the technique. It has only been in recent decades that the popularity and government incentives have brought green roofing to the United States.

What is Green Roofing?

Modern green roofs involve planting local vegetation on top of waterproofing membranes that are affixed to the roof of a building. There are layers of material designed to house roots and create irrigation and drainage. Some structures are completely covered with vegetation, while others may only be partially covered. Green roofs fall into two main categories, intensive and extensive.


Costs for installing the green roofing is considerably high. The waterproofing layers along with beefing up the support structure adds up quickly. Plus, unlike a typical roof, there is considerable more maintenance. Some people worry the vegetation will suffer from lack of rainfall. However, the way the drainage is designed, the roof will survive lengths of drought. And since local vegetation is used, it will also survive winter months.

For more information about green roofs, contact a commercial roofing repair contractor near you. If you are in Georgia, Atlanta commercial roofing can help you find solutions to your needs.

Green Metal Roofing

Roofing and Rainwater Collection Systems

Sustainable, or "green," buildings - buildings that are deliberately designed to use natural resources in a way that's environmentally friendly -- are no longer a luxury. They are an imperative.

Consider the facts: According to the National Institute of Building Sciences' Whole Building Design Guide, "On an annual basis, buildings in the United States consume 39 percent of America's energy and 68 percent of its electricity. Furthermore, buildings emit 38 percent of the carbon dioxide (the primary greenhouse gas associated with climate change), 49 percent of the sulfur dioxide, and 25 percent of the nitrogen oxides found in the air. Currently, the vast majority of this energy is produced from non-renewable, fossil fuel resources..."

Of the two ways to reduce heating, cooling and lighting loads "through climate-responsive design and construction practices," the Whole Building Design Guide recommends the use of "high-performance building envelopes: select walls, roofs, and other assemblies based on long-term insulation, and durability requirements."

One of the most sustainable, high performance building materials prevalent throughout the world is zinc.

Zinc is reported to be the 23rd most abundant element in the earth's crust. It is a non-ferrous metal that is not susceptible to rust or corrosion: It's weatherproof, seismic proof, corrosion resistant, and immune to the harmful effects of UV rays, ensuring a very long service life without degradation.

This is possible because architectural zinc develops its own protective layer, which is called zinc hydroxyl carbonate. Once it's formed, that layer blocks moisture and chemicals from penetrating the zinc and, if it's scratched, the hydroxyl carbonate will reform over time. In other words, zinc heals itself. That's why zinc walls and roofs last on average from 80 to 100 years.

Zinc also requires very little energy to manufacture and little to no maintenance, and it is 100 percent recyclable from new construction scrap to the time it reaches its end use. As a result, zinc roofs and wall cladding never end up in landfills.

For generations, European architects have specified zinc as a building envelope material for all types of buildings because it would last and endure harsh weather conditions. In the late 1700s, zinc was also one of the most popular materials used for roofing in America, which is why many well-known historic structures, such as the Washington Monument and Thomas Jefferson's Monticello, had metal roofs.

Unfortunately, zinc fell out of favor in the U.S. as less expensive roofing materials evolved, such as asphalt shingles, and as American developers and building owners lapsed into a "throw-away" mind-set in the 1960s and '70s that still assumes no more than a 30- to 50-year life span for American buildings.

Today, American architects are becoming more enamored with the material, not only for its durability but also because of the increasing need for environmentally sustainable design and construction.

American architects are warming to the use of zinc on commercial, institutional, and government buildings. A few far-sighted practitioners are also encouraging their residential clients to use architectural zinc on their homes - from brand-new construction to renovation and historic restoration.

New Construction: Thinking of The Future

"Zinc ultimately costs much less than asphalt shingles when you calculate the life span of the house," says Daniel Nicely, director of market development for VMZINC and an associate member of the American Institute of Architects (AIA). "Shingles are usually composed of asphalt, a decidedly non-green material, and an average shingle roof will need to be replaced about every 10 years -- four to five times compared to the lifetime of one zinc roof."

The value of zinc's low maintenance factor was underscored at the University of North Carolina at Greensboro when the decision was made to use zinc for two projects there, including the Hall for Humanities Research and Administration. The university acknowledged that construction budgets tend to be well funded but maintenance budgets are not. The self-healing characteristic of zinc was another factor in the decision, as was aesthetics:

"Zinc worked well because of the appearance," said Andy Sykes of Calloway Johnson Moore & West, PA, in North Carolina, project manager for the Hall for Humanities' project. "The color was more similar to what historical turn-coated lead roofs looked like and blended with the traditional campus roofs." (source: McGraw-Hill Construction, Continuing Education Center)

The aesthetic quality of architectural zinc for historic buildings was a key issue for the Central Presbyterian Church in Huntsville, Alabama, when it renovated the Cooper House, a nearby antebellum house that is listed on the National Register of Historic Places, to become its new Family Life Center. The old house needed a new roof and rainwater system that would be consistent with the house's historic style and last well into the future.

Hays Buchanan, the architects on the church project, chose natural VMZINC "for its historically correct gray color, strength and durability," reported Design & Build With recently.

While zinc is often used in contemporary applications, the Cooper House project is a perfect example of why it is is a natural choice for historic restoration: the color, in this case of natural VMZINC, is historically correct aesthetically pleasing, durable and intended to last for decades. In addition, production techniques allow it to maintain the unique look of natural metal with consistent colors. Natural VMZINC will not develop a drastically different patina like copper, for example, that changes from its copper color to green. Instead, it weathers over the years to form a textured gray patina.

Design and Build with also reported that Central Presbyterian church leaders and the Huntsville/Madison County Historical Society "readily approved the application [of zinc roofing and rainwater system] as consistent with the building's historical architecture."

Will Residential Use of Zinc Sweep America?

After rhapsodizing over the beauty, value, and sustainability of architectural zinc, Dallas architect Bob Borson answered the question he knew his blog readers would ask: Why isn't zinc used more in residential design?

"The reason we don't use it more often is because of the price," Borson wrote. "For the average standing seam profile, material cost and labor will run you in the ballpark of $20 per square foot."

For a young family building their first home, or senior citizens replacing the roof of a home they've already lived in for over 50 years, the cost is understandably prohibitive. But for new, modern homes from North Carolina to California, elegant estates in the North East or Pacific Northwest, a mid-century or old farmhouse renovation in Florida or Kentucky, or a historic home in heart of Charleston, Savannah, New Orleans' French Quarter, et al, the durability and sheer beauty of zinc roofing and wall cladding will continue to gain popularity as the imperative for sustainable, energy-saving homes grows stronger.


Maintaining Flat Roofs and Your Sanity

Green Roof Systems Residential Georgia