Thermal performance of insulated metal building roof deck constructions
System thermal resistance (R) values were measured in full-scale guarded hot box tests, in accordance with ASTM Test for Thermal Conductance and Transmittance of Built-Up Sections by Means of the Guarded Hot Box (C 236), on a series of ten insulated metal building roof deck constructions. Orientation of the hot box was horizontal, with heat flow upward for the test constructions with cavities, and heat flow downward for the test constructions without cavities, that is, those with an exposed steel purlin. Mean temperature in each insulated construction test was approximately 4.4/sup 0/C (40/sup 0/F). System R-values were calculated for certain of these insulated constructions by means of the ASHRAE Zone Method. This method may be used for an insulation system containing a highly conductive element, such as a steel purlin. Results of the comparisons between the measured R-values and the zone method calculated R-values are reported in this paper.
- Research Organization:
- Jim Walter Research Corp., St. Petersburg, FL
- OSTI ID:
- 6699208
- Report Number(s):
- CONF-811222-
- Journal Information:
- Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States), Journal Name: Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States) Vol. 789; ISSN ASTTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
COLLOIDS
CONSTRUCTION
DISPERSIONS
EFFICIENCY
FIBERGLASS
FOAMS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
PLASTIC FOAMS
POLYMERS
ROOFS
TESTING
THERMAL CONDUCTIVITY
THERMAL EFFICIENCY
THERMAL INSULATION
THERMAL TESTING
THERMODYNAMIC PROPERTIES