New Roof and Attic Design Improves Energy Efficiency in Summer and Winter
OAK RIDGE, Tenn. — A new kind of roof-and-attic system field-tested at the U.S. Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) has been developed to keep homes cool in summer and prevent heat loss in winter, a multi-seasonal efficiency uncommon in roof and attic design.
The system improves efficiency using controls for radiation, convection, and insulation, including a passive ventilation system that pulls air from the underbelly of the attic into an inclined air space above the roof.