Indoor radon reduction in crawl-space houses: A review of alternative approaches
Technical Report
·
OSTI ID:6793946
The paper discusses the state of the art of alternative technologies for reducing radon concentrations in the living areas of houses with crawl-space foundations. For the two most promising technologies-sub-membrane depressurization (SMD) and crawl-space depressurization-the effects of individual house design, house operation, system design, system operation, and geological variables on system performance have been evaluated. SMD is consistently the most effective technique. Evaluation of the effects of the various house and mitigation system variables indicates that the major data gaps are: (1) the conditions under which crawl-space depressurization might be preferred over SMD; (2) the optimal method for distributing suction beneath a SMD membrane under different conditions; (3) the optimal degree of SMD membrane sealing required under different conditions; (4) the conditions under which it may be possible to leave a portion of the crawl-space uncovered; and (5) the durability of SMD the other systems.
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (United States). Air and Energy Engineering Research Lab.
- OSTI ID:
- 6793946
- Report Number(s):
- PB-93-173177/XAB; EPA--600/J-93/078
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
AIR POLLUTION
AIR POLLUTION CONTROL
BUILDINGS
COMPARATIVE EVALUATIONS
CONTROL
DEPRESSURIZATION SYSTEMS
DESIGN
DOCUMENT TYPES
ELEMENTS
EVALUATION
FLUIDS
FOUNDATIONS
GASES
HOUSES
INDOOR AIR POLLUTION
INSTALLATION
MECHANICAL STRUCTURES
MINIMIZATION
MITIGATION
NONMETALS
OPERATION
OPTIMIZATION
PERFORMANCE TESTING
POLLUTION
POLLUTION CONTROL
RADON
RARE GASES
RESIDENTIAL BUILDINGS
REVIEWS
SAFETY STANDARDS
SOILS
STANDARDS
SUPPORTS
TECHNOLOGY ASSESSMENT
TESTING
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
AIR POLLUTION
AIR POLLUTION CONTROL
BUILDINGS
COMPARATIVE EVALUATIONS
CONTROL
DEPRESSURIZATION SYSTEMS
DESIGN
DOCUMENT TYPES
ELEMENTS
EVALUATION
FLUIDS
FOUNDATIONS
GASES
HOUSES
INDOOR AIR POLLUTION
INSTALLATION
MECHANICAL STRUCTURES
MINIMIZATION
MITIGATION
NONMETALS
OPERATION
OPTIMIZATION
PERFORMANCE TESTING
POLLUTION
POLLUTION CONTROL
RADON
RARE GASES
RESIDENTIAL BUILDINGS
REVIEWS
SAFETY STANDARDS
SOILS
STANDARDS
SUPPORTS
TECHNOLOGY ASSESSMENT
TESTING