Thermal properties of polyisocyanurate foam board insulation blown with CFC-11 substitutes
Participants at government and industry-sponsored workshops decided to fully evaluate several hydrochlorofluorocarbons for their suitability as blowing agents in polyisocyanurate laminate boardstock. Laminated boardstock was chosen because of its superior insulating qualities, commercial significance, high technical dependence on alternate blowing agents and diverse requirements. The project is under the guidance of a cooperative industry/government steering committee with representation by the Society of the Plastic Industry, the Polyisocyanurate Insulation Manufacturers Association, the National Roofing Contractors Association, the US Environmental Protection Agency, and the US Department of Energy. This study deals with the key question: To what extend are the thermal properties of foams with alternate blowing agents differ from foam with CFC-11 Results are reported that compare foam thermal performance under laboratory conditions, as well as the thermal performance in long-term in situ testing of roof sections. The former involves both full thickness and thin slicing techniques and utilizes an advanced R-Matic apparatus with expanded temperature range capabilities (ASTM C-518) and an Unguarded Thin Heater Apparatus (ASTM C-1114). The long-term in-situ testing is carried out on small-scale, conventionally installed roof systems on the Roof Thermal Research Apparatus. All tests are being conducted at the Oak Ridge National Laboratory with technical guidance from the steering committee. 10 refs., 7 figs., 8 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- DOE/CE
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6050014
- Report Number(s):
- CONF-910446-2; ON: DE90016047
- Resource Relation:
- Conference: 3. international symposium on roofing technology, Montreal (Canada), 17-19 Apr 1991
- Country of Publication:
- United States
- Language:
- English
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Laboratory test results on the thermal resistance of polyisocyanurate foamboard insulation blown with CFC-11 substitutes: A cooperative industry/government project
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Related Subjects
36 MATERIALS SCIENCE
54 ENVIRONMENTAL SCIENCES
CHLORINATED ALIPHATIC HYDROCARBONS
PERFORMANCE
FLUORINATED ALIPHATIC HYDROCARBONS
PLASTIC FOAMS
THERMAL CONDUCTIVITY
AGING
AIR QUALITY
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
COORDINATED RESEARCH PROGRAMS
DIFFUSION
FIELD TESTS
MANUFACTURERS
MEASURING METHODS
PROCESS CONTROL
REGULATIONS
ROOFS
SAMPLING
STANDARDS
TECHNOLOGY ASSESSMENT
THERMAL INSULATION
THERMODYNAMIC PROPERTIES
COLLOIDS
CONTROL
DISPERSIONS
ENVIRONMENTAL QUALITY
FOAMS
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
POLYMERS
RESEARCH PROGRAMS
TESTING
320107* - Energy Conservation
Consumption
& Utilization- Building Systems- (1987-)
360603 - Materials- Properties
320303 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)