A Prototype Roof Deck Designed to Self-Regulate Deck Temperature and Reduce Heat Transfer
- ORNL
A prototype roof and attic assembly exploits the use of radiation, convection and insulation controls to reduce the heat transfer penetrating its roof deck by almost 85% of the heat transfer crossing a conventional roof and attic assembly. The assembly exhibited attic air temperatures that did not exceed the peak day outdoor ambient temperature. The design includes a passive ventilation scheme that pulls air from the soffit and attic into an inclined air space above the deck. The design complies with fire protection codes because the air intake is internal and closed to the elements. Field data were benchmarked against an attic computer tool and simulations made for new and retrofit home constructions in hot, moderate and cold climates to access economics for the assembly.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Building Technologies Research and Integration Center (BTRIC)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1028741
- Resource Relation:
- Conference: 2011 International Roofing Symposium: Emerging Technologies and Roof System Performance, Washington DC, MD, USA, 20110907, 20110909
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
29 ENERGY PLANNING
POLICY AND ECONOMY
AIR
AMBIENT TEMPERATURE
ATTICS
CLIMATES
COMPUTERS
CONVECTION
DESIGN
ECONOMICS
HEAT TRANSFER
OUTDOORS
PERFORMANCE
ROOFS
VENTILATION
Roof sheathing
cool roof
insulation
radiant barrier
above deck ventilation
attic ventilation
computer simulations
computer benchmark