Steep-Slope Assembly Testing of Clay and Concrete Tile With and Without Cool Pigmented Colors
- ORNL
Cool color pigments and sub-tile venting of clay and concrete tile roofs significantly impact the heat flow crossing the roof deck of a steep-slope roof. Field measures for the tile roofs revealed a 70% drop in the peak heat flow crossing the deck as compared to a direct-nailed asphalt shingle roof. The Tile Roofing Institute (TRI) and its affiliate members are keenly interested in documenting the magnitude of the drop for obtaining solar reflectance credits with state and federal "cool roof" building efficiency standards. Tile roofs are direct-nailed or are attached to a deck with batten or batten and counter-batten construction. S-Misson clay and concrete tile roofs, a medium-profile concrete tile roof, and a flat slate tile roof were installed on fully nstrumented attic test assemblies. Temperature measures of the roof, deck, attic, and ceiling, heat flows, solar reflectance, thermal emittance, and the ambient weather were recorded for each of the tile roofs and also on an adjacent attic cavity covered with a conventional pigmented and directnailed asphalt shingle roof. ORNL measured the tile's underside temperature and the bulk air temperature and heat flows just underneath the tile for batten and counter-batten tile systems and compared the results to the conventional asphalt shingle.
- Research Organization:
- Oak Ridge National Laboratory (ORNL); Building Technologies Research and Integration Center
- Sponsoring Organization:
- EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 981415
- Report Number(s):
- ORNL/TM-2005/265; BT0304020; CEBT314
- Country of Publication:
- United States
- Language:
- English
Similar Records
The Effects of Infrared-Blocking Pigments and Deck Venting on Stone-Coated Metal Residential Roofs
TASK 2.5.7 FIELD EXPERIMENTS TO EVALUATE COOL-COLORED ROOFING
The Equivalent Thermal Resistance of Tile Roofs with and without Batten Systems
Technical Report
·
Sat Dec 31 23:00:00 EST 2005
·
OSTI ID:981414
TASK 2.5.7 FIELD EXPERIMENTS TO EVALUATE COOL-COLORED ROOFING
Technical Report
·
Sun Feb 28 23:00:00 EST 2010
·
OSTI ID:981442
The Equivalent Thermal Resistance of Tile Roofs with and without Batten Systems
Conference
·
Mon Dec 31 23:00:00 EST 2012
·
OSTI ID:1110852