ATTIC, Out Of Site Out Of Mind
All of our finished Hybrid Roofing materials will have an average of R-7 thermal insulation value, when installed using a standard roofing components. Green Hybrid Roofing provides a thermal barrier on the outside of the building envelope. This insulation will moderate attic temperatures where almost 100% of all heating and cooling ducts dwell, ultimately assisting with maintaining a comfortable temperature when using less energy do to its thermal insulating qualities. This benefit is even greater for mobile home industry that are not able to install similar roofing due to weight factor.
On a hot, sunny summer day, roof and pavement surface temperatures can be 50–90°F. (27–50°C) hotter than the air. These surface urban heat islands, particularly during the summer, have multiple impacts and contribute to atmospheric urban heat islands. Air temperatures in cities, particularly after sunset, can be as much as 22°F. (12°C) warmer than the air in neighboring, less developed regions.
ENERGY USAGE FACTS
Elevated temperatures from urban heat islands, particularly during the summer, can affect a community’s environment and quality of life. These impacts include: Increased Energy Consumption, Elevated summertime temperatures in cities increase energy demand for cooling. Research shows that electricity demand for cooling increases 1.5–2.0% for every 1°F. (0.6°C) increase in air temperatures, starting from 68 to 77°F. (20 to 25°C), suggesting that 5–10% of community-wide demand for electricity is used to compensate for the heat island effect.
Urban heat islands increase overall electricity demand as well as peak demand which generally occurs on hot summer weekday afternoons when offices and homes are running cooling systems, lights, and appliances. During extreme heat events, which are exacerbated by urban heat islands, the resulting demand for cooling can overload systems and require a utility to institute controlled rolling blackouts to avoid power outages.
Elevated Emissions of Air Pollutants and Greenhouse Gases
Urban heat islands raise demand for electrical energy in summer. Companies that supply electricity typically rely on fossil fuel power plants to meet much of this demand, which in turn leads to an increase in air pollutant and greenhouse gas emissions. The primary pollutants from power plants include sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matter (PM), carbon monoxide (CO), and mercury (Hg). These pollutants are harmful to human health and also contribute to complex air quality problems such as the formation of ground-level ozone (smog), fine particulate matter, and acid rain. Increased use of fossil-fuel-powered plants also increases emissions of greenhouse gases, such as carbon dioxide (CO2), which contribute to global climate change.
Why Build Green?
The green market was 2% of non-residential construction in 2005; 10-12% in 2008; and will grow to 20-25% by 2015. Green buildings consume less energy and fewer resources. In comparison to the average commercial building: Green buildings consume 26% less energy, have 13% lower maintenance costs, 27% higher occupant satisfaction and 33% less greenhouse gas emissions. Buildings represent 72% of United States electricity consumption.