epa  

“In the United States Alone, 11 million tons of asphalt shingle waste ends up in landfills each year. ”

epa  

“The EPA estimates that homes with Cool Roof Technology save 10-15% on their energy bills annually.”

deptenergy

“Proper ventilation can lower the attic temperature by as much as 50°F, which significantly reduces the home’s cooling demands. Ridge and soffit vents help keep the attic space well-ventilated, preventing a build-up of moisture and reducing heat in summer. These vents can prolong the life of the roof.”

depthousing

“Inadequate ventilation will lead to fungus growth and very costly repairs.”

energystar 

“In the winter, allowing a natural flow of outdoor air to ventilate the attic helps keep it cold, which reduces the potential for ice damming (snow that melts off a roof from an attic that is too warm and then re-freezes at the gutters, causing an ice dam that can damage the roof).”

epa  

“Dampness and mold in homes are estimated to account for 21 percent of current asthma cases in the United States.”

 berkley 

“Based on surveys, approximately half of U.S. homes have visible evidence of a dampness problem or mold contamination.” (Study of over 24,000 homes in 24 US Cities)

 nahb 

“If your home has an attic, make sure it is properly insulated and ventilated. Ventilation openings where the least dimension exceeds 10 mm should be protected with mesh to prevent entry of birds, etc.”

 hvi2 

“HVI recommends vent selection and placement such that 60 percent of the vent net free area is provided by intake vents placed at the under-eave area and 40 percent of the vent net free area is provided by exhaust vents on the roof, at the ridge or high in the gable area.”