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Crawl space floors in multistorey buildings; Kerrostalojen tuuletettavat alapohjat

Technical Report:

Abstract

Field measurements in the crawl spaces of multistorey buildings showed these to be satisfactorily ventilated. In eight of nine buildings the air exchange rates of the crawl spaces were 0.3- 1.1 l/s per square metre of crawl space area. In one of the buildings the crawl space was totally unventilated. Crawl space air temperatures varied from 9-14 deg C in winter to 15-22 deg C in late summer. Condensation occurred occasionally or throughout the year on the foundation base walls or lower surface of the floor in six buildings. Evaporation of moisture from the crawl space ground was the most important factor affecting the crawl space climate. According to the results it is impossible to control effectively the air humidity in a crawl space solely by ventilation of the crawl space.
Authors:
Nieminen, J; Kauppi, A [1] 
  1. Technical Research Centre of Finland, Espoo (Finland). Building Materials Lab.
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
VTT-TIED-1356
Reference Number:
SCA: 320107; PA: FI-92:003434; EDB-93:014174; SN: 93000918043
Resource Relation:
Other Information: PBD: 1992
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FLOORS; VENTILATION; APARTMENT BUILDINGS; FOUNDATIONS; FIELD TESTS; MOISTURE; AIR CONDITIONING; AMBIENT TEMPERATURE; THERMAL INSULATION; SOILS; 320107; BUILDING SYSTEMS
OSTI ID:
10111621
Research Organizations:
Technical Research Centre of Finland, Espoo (Finland)
Country of Origin:
Finland
Language:
Finnish
Other Identifying Numbers:
Other: ON: DE93752861; ISBN 951-38-4169-3; TRN: FI9203434
Availability:
OSTI; NTIS
Submitting Site:
FI
Size:
34 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Nieminen, J, and Kauppi, A. Crawl space floors in multistorey buildings; Kerrostalojen tuuletettavat alapohjat. Finland: N. p., 1992. Web.
Nieminen, J, & Kauppi, A. Crawl space floors in multistorey buildings; Kerrostalojen tuuletettavat alapohjat. Finland.
Nieminen, J, and Kauppi, A. 1992. "Crawl space floors in multistorey buildings; Kerrostalojen tuuletettavat alapohjat." Finland.
@misc{etde_10111621,
title = {Crawl space floors in multistorey buildings; Kerrostalojen tuuletettavat alapohjat}
author = {Nieminen, J, and Kauppi, A}
abstractNote = {Field measurements in the crawl spaces of multistorey buildings showed these to be satisfactorily ventilated. In eight of nine buildings the air exchange rates of the crawl spaces were 0.3- 1.1 l/s per square metre of crawl space area. In one of the buildings the crawl space was totally unventilated. Crawl space air temperatures varied from 9-14 deg C in winter to 15-22 deg C in late summer. Condensation occurred occasionally or throughout the year on the foundation base walls or lower surface of the floor in six buildings. Evaporation of moisture from the crawl space ground was the most important factor affecting the crawl space climate. According to the results it is impossible to control effectively the air humidity in a crawl space solely by ventilation of the crawl space.}
place = {Finland}
year = {1992}
month = {Dec}
}