Scientists at the University of California Santa Barbara published a paper that proposes adaptive roof tile technology that can adjust to ambient temperatures.
Using a wax motor, tiles could switch from a heating or cooling state enabling savings on heating and cooling costs. The motor switches between cooling and heating states within 3 degrees Celsius of the switch temperature.
The concept could reduce cooling and heating needs by more than 2.5 times, the paper says. The volume of wax changes as the ambient temperature changes, creating pressure that moves mechanical parts. The motor could push or retract pistons that close or open louvers on the tile’s surface.
When there are cooler temperatures, the wax is solid and louvers are closed and lay flat, exposing a surface that absorbs sunlight and minimizes heat dissipation. As temperatures reach about 64.5 degrees Fahrenheit, the wax begins to melt and expand. This action pushes open louvers and exposes a surface that reflects sunlight and emits trapped heat.
Related Stories
| Aug 11, 2010
Green consultant guarantees LEED certification or your money back
With cities mandating LEED (Leadership in Energy and Environmental Design) certification for public, and even private, buildings in growing numbers, an Atlanta-based sustainability consulting firm is hoping to ease anxieties over meeting those goals with the industry’s first Green Guaranteed.
| Aug 11, 2010
Skanska, Turner most active in U.S. hotel construction, according to BD+C's Giants 300 report
A ranking of the Top 50 Hotel Contractors based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Gilbane, Whiting-Turner among nation's largest university contractors, according to BD+C's Giants 300 report
A ranking of the Top 50 University Contractors based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit /giants
| Aug 11, 2010
Suffolk breaks ground on colorful charter school in Boston
Suffolk Education has broken ground and began renovations and construction of a new $39.6 million facility to house the Boston Renaissance Charter Public School. The Suffolk team is renovating an existing, three-story mill building and warehouse in the Hyde Park section of Boston, Massachusetts, and constructing a 20,000 square-foot addition.
| Aug 11, 2010
McCarthy, Skanska among nation's largest healthcare contractors, according to BD+C's Giants 300 report
A ranking of the Top 50 Healthcare Contractors based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Turner, Webcor, Hensel Phelps top BD+C's list of the 75 largest green contractors
With more than $3 billion in value of construction put in place for green buildings in 2008, Turner Construction tops BD+C’s ranking of the nation’s 75 largest green contractors, published as part of the Giants 300 report. Webcor Builders ($2.27 billion), Hensel Phelps Construction ($2.10 billion), The Whiting-Turner Contracting Co. ($1.97 billion), and Clark Group ($1.89 billion) round out the top five.
| Aug 11, 2010
Free waterproofing and roofing resource handbook available from American Hydrotech
American Hydrotech is now offering a waterproofing and roofing resource handbook for all architects and design community professionals. Topics include sustainable design, waterproof product specification, and proper installation techniques for use by building professionals in designing and waterproofing roof decks, plazas, vertical foundations, reflecting pools, and green roof applications.
| Aug 11, 2010
Installation work begins on Minnesota's largest green roof
Installation of the 2.5 acre green roof vegetation on the City-owned Target Center begins today. Over the course of two days a 165 ton crane will hoist five truckloads of plant material, which includes 900 rolls of pre-grown vegetated mats of sedum and native plants for installation on top of the arena's main roof.
| Aug 11, 2010
Jacobs, Holder Construction top BD+C's ranking of the nation's 50 largest industrial building contractors
A ranking of the Top 50 Industrial Contractors based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
