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Title: A Field Study Comparison of the Energy and Moisture Performance Characteristics of Ventilated Versus Sealed Crawl Spaces in the South

Abstract

This study compared the performance of closed crawl spaces, which had sealed foundation wall vents, a sealed polyethylene film liner and various insulation and drying strategies, to traditional wall-vented crawl spaces with perimeter wall vents and polyethylene film covering 100% of the ground surface. The study was conducted at 12 owner-occupied, all electric, single-family detached houses with the same floor plan located on one cul-de-sac in the southeastern United States. Using the matched pairs approach, the houses were divided into three study groups of four houses each. Comparative data was recorded for each house to evaluate sub-metered heat pump energy consumption, relative humidity, wood moisture content, duct infiltration, house infiltration, temperature, radon, and bioaerosol levels. Findings indicated that in the humid conditions of the southeastern United States, a properly closed crawl space is a robust construction measure that produces a substantially drier crawl space and significantly reduces occupied space conditioning energy use on an annual basis.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
North Carolina Advanced Energy Corporation
Sponsoring Org.:
USDOE
OSTI Identifier:
850459
DOE Contract Number:  
FC26-00NT40995
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CONSTRUCTION; DRYING; DUCTS; ENERGY CONSUMPTION; FLOORS; HEAT PUMPS; HUMIDITY; LINERS; MOISTURE; PERFORMANCE; POLYETHYLENES; RADON; WOOD

Citation Formats

Davis, Bruce, Dastur, Cyrus, Warren, William E, Fitzpatrick, Shawn, Maurer, Christine, Stevens, Rob, Brennan, Terry, and Rose, William. A Field Study Comparison of the Energy and Moisture Performance Characteristics of Ventilated Versus Sealed Crawl Spaces in the South. United States: N. p., 2005. Web. doi:10.2172/850459.
Davis, Bruce, Dastur, Cyrus, Warren, William E, Fitzpatrick, Shawn, Maurer, Christine, Stevens, Rob, Brennan, Terry, & Rose, William. A Field Study Comparison of the Energy and Moisture Performance Characteristics of Ventilated Versus Sealed Crawl Spaces in the South. United States. doi:10.2172/850459.
Davis, Bruce, Dastur, Cyrus, Warren, William E, Fitzpatrick, Shawn, Maurer, Christine, Stevens, Rob, Brennan, Terry, and Rose, William. Wed . "A Field Study Comparison of the Energy and Moisture Performance Characteristics of Ventilated Versus Sealed Crawl Spaces in the South". United States. doi:10.2172/850459. https://www.osti.gov/servlets/purl/850459.
@article{osti_850459,
title = {A Field Study Comparison of the Energy and Moisture Performance Characteristics of Ventilated Versus Sealed Crawl Spaces in the South},
author = {Davis, Bruce and Dastur, Cyrus and Warren, William E and Fitzpatrick, Shawn and Maurer, Christine and Stevens, Rob and Brennan, Terry and Rose, William},
abstractNote = {This study compared the performance of closed crawl spaces, which had sealed foundation wall vents, a sealed polyethylene film liner and various insulation and drying strategies, to traditional wall-vented crawl spaces with perimeter wall vents and polyethylene film covering 100% of the ground surface. The study was conducted at 12 owner-occupied, all electric, single-family detached houses with the same floor plan located on one cul-de-sac in the southeastern United States. Using the matched pairs approach, the houses were divided into three study groups of four houses each. Comparative data was recorded for each house to evaluate sub-metered heat pump energy consumption, relative humidity, wood moisture content, duct infiltration, house infiltration, temperature, radon, and bioaerosol levels. Findings indicated that in the humid conditions of the southeastern United States, a properly closed crawl space is a robust construction measure that produces a substantially drier crawl space and significantly reduces occupied space conditioning energy use on an annual basis.},
doi = {10.2172/850459},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {6}
}