ORNL roof, attic design proves efficient in summer, winter

ORNL Roof System

A new roof system tested at Oak Ridge National Laboratory improves efficiency using controls such as a ventilation system that pulls air from the attic into an air space above the roof. (Photo courtesy of ORNL)

A new roof-and-attic system tested at the Oak Ridge National Laboratory keeps homes cool in summer and prevents heat loss in winter, a press release said.

Among the features designed to improve efficiency are a ventilation system that pulls air from the underbelly of the attic into air space above the roof, the release said.

“Heat that would have gone into the house is carried up and out,” says Bill Miller of ORNL’s Building Envelope Group. “And with a passive ventilation scheme, there are no moving parts, so it’s guaranteed to work.”

[Read more…]