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ROOF INSULATION
Penn State measured a green roof during a June 2002 heat spell; its membrane peaked near 30°C, while the uncovered roof surface climbed to nearly 70°CGreen roofs present a remarkable solution for enhancing temperature control in urban environments, effectively lowering surface temperature...
In 2018, Susan Sarandon bought 45 acres in Vermont for an off-grid solar-and-geothermal home; 5 years later, engineers and staff flagged 47 alleged construction problemsActress Susan Sarandon's dream of an off-grid Vermont estate encountered significant construction problems and a lawsuit. Her company filed...
In 2015, AP+I Design helped transform a 1,328.5-square-meter dark office into a bright workspace. 11 years later, it remains Mountain View's first commercial zero-energy buildingIn 2015, AP+I Design gave a dark 1,328.5-square-meter office in Mountain View a completely new life. The designers brought in light, openne...
Sacramento researchers coated a retail store’s dark roof white in 2002. Its peak roof temperature fell by up to 42°C and air-conditioning energy use dropped 52%In 2002, Sacramento researchers coated a retail store’s dark roof with a reflective cool-roof coating. The roof’s peak surface temperature ...
In St. Paul, Penfield added a vegetated roof over a conventional membrane; monitoring found the green-roof membrane peaked about 51°F cooler than the conventional roofResearch reveals that green roofs maintain lower temperatures compared to conventional roofs, leading to significant reductions in cooling ...
In Tucson, a 28,000-square-foot city roof got a white elastomeric coating; cooling energy fell 50–65%, saving over 400 million Btu and nearly $4,000 a yearCool roof coatings present an easy and efficient method to lower cooling bills during hot summer days. A Tucson city building illustrated i...
Chicago planted a 20,300-square-foot green roof on City Hall; EPA says its surface can be about 100°F cooler than nearby conventional roofs and saves nearly $5,000 in energy each yearChicago's City Hall green roof demonstrates substantial cooling and energy savings. This innovative rooftop garden reduces surface temperat...
Silver Sands Middle School replaced gray shingles with reflective white metal; plenum temperature fell by over 25°F, and cooling energy in Portable 096 dropped by over 33%A recent study revealed that dark roofs on portable classrooms led to increased cooling costs. By switching to white metal roofing, energy ...
A Fresno home replaced dark asphalt shingles with reflective concrete roof tiles; a Lawrence Berkeley study reported 26% lower annual cooling energy use and 37% lower peak-hour demandA recent study in Fresno demonstrated that reflective roofs could lower cooling energy consumption by an impressive twenty-six percent. Hom...
In 1991, researchers coated a Merritt Island home’s green-gray shingle roof with reflective material; the shingles reached about 110°F after treatmentDark roofs tend to soak up heat from the sun, resulting in higher air conditioning demands and costs. Utilizing reflective roofing material...
In 2001, researchers tested a white roof on a large Austin retail store; the study reported lower roof temperatures and an 11% reduction in cooling energy useA 2001 study in Austin demonstrated that white roofs lowered building temperatures significantly. This change reduced air conditioning ener...
Europe’s summer felt like a gamechanger. Will next year be any different?Europe faces severe heat waves, impacting harvests and causing many deaths. Governments are beginning to acknowledge climate change impacts...
In 2018, a University of Hawaii study compared green and white roofs in Honolulu; the green roof was reported to have lower peak temperatures at the surface and nearby airA University of Hawaii graduate student tested green roofs against white ones. The green roof proved significantly cooler than the adjacent...
In 2007, Oak Ridge built a roof with phase-change material between foil layers; attic temperatures fell about 22°F, with utility savings estimated at 8%Developed by Oak Ridge National Laboratory, innovative attic technology utilizing phase change materials has proven to lower attic temperat...
No concrete, only boulders: Just 2 hours from Bengaluru, this 2,400 sq ft forest farmstay is built with natural stone, mud blocks, wood and clayLocated in Shoolagiri, this remarkable farmstay near Bengaluru blends natural boulders into its architecture, encouraging an eco-conscious ...
In 1995, Florida researchers coated a Cocoa Beach school roof white; over the following year, chiller energy use fell 10%, saving 13,000 kWh, while peak demand fell 35%A study conducted in Florida revealed that white roofs can drastically lower cooling costs, marking a significant achievement in the realm ...
These sustainable houses built from waste cost under $300: 2 tonnes of discarded plastic can become a home in just 7 daysA Mexican entrepreneur is turning discarded plastic into affordable, sustainable homes that cost under $300. Each house uses around 2 tonne...
In a 2011 Las Vegas test, a 15.24-cm wet roof pond lowered indoor peak operative temperature by about 8.5°C versus the outdoor maximumIn the summer of 2011, a groundbreaking building in Las Vegas experimented with roof pond cooling. Results indicated that wet roof ponds ef...
In 2017, CU Boulder engineers turned glass microspheres into a 50-microliter film; 10 to 20 square meters of it could help cool a family-sized houseA team of researchers has developed a groundbreaking thin film that cools surfaces without the need for electricity or water. By employing ...
A reflective roof coating reduced peak roof temperature by 14.1°C and indoor temperature by 2.4°C; later research found evaporative cooling could add further benefitsInnovative roofing technologies are changing the game for building temperature regulation. By utilizing white reflective coatings, sunlight...