ORNL roof-and-attic system keeps houses cool in summer, warm in winter

Heating and cooling a house are two of the biggest ongoing costs for homeowners and are responsible for the bulk of the average household’s energy consumption. A new kind of roof-and-attic system field tested at the DoE’s Oak Ridge National Laboratory (ORNL) improves the efficiency of both winter heating and summer cooling. Importantly, the new system can be retrofitted to most existing roofs.

Read More: http://www.gizmag.com/ornl-roof-and-attic-system/24083/