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CHARACTERISTICS OF SCHOOL BUILDINGS IN THE U.S.
Citation:
Chmelynski, H. CHARACTERISTICS OF SCHOOL BUILDINGS IN THE U.S. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-93/218 (NTIS PB94-121704), 1993.
Impact/Purpose:
Information.
Description:
The report gives results of visiting a subsample of 100 schools from the Environmental Protection Agency's (EPA's) National School Radon Survey to obtain information on building structure, location of utility lines, and the type of heating, ventilating, and air conditioning (HVAC) system. Information from each school was entered into a database to determine the relative proportions of physical characteristics of the U.S. school building population. Results indicate that most school structures are of slab-on-grade construction, gravel was used as subslab fill material in approximately half of the structures, approximately 80% of the schools have either central HVAC or unit ventilators capable of delivering conditioned outdoor air to the classrooms, and almost 25% of the schools have subslab footings extending both beneath the classroom walls and along the corridors, thus complicating the installation of effective subslab depressurization systems. The results obtained in this study will be used by EPA to guide future mitigation research in schools.