Conceptual Reference Database for Building Envelope Research Prev
Next

Indoor humidity loads and moisture production in lightweight timber-frame detached houses

Kalamees, T., Vinha, J., Kurnitski, J.
2006
Journal of Building Physics, Vol. 29, No. 3, 219-246

Kalamees, T., Vinha, J., Kurnitski, J., (2006), "Indoor humidity loads and moisture production in lightweight timber-frame detached houses", Journal of Building Physics, Vol. 29, No. 3, 219-246.
Abstract:
Targo Kalamees: Laboratory of Structural Engineering, Tampere University of Technology, PO Box 600, 33101 Tampere, Finland, kalamees@uninet.ee

Juha Vinha: Laboratory of Structural Engineering, Tampere University of Technology, PO Box 600, 33101 Tampere, Finland

Jarek Kurnitski:HVAC-Laboratory, Helsinki University of Technology, PO Box 4100, FIN-02015 HUT, Finland

In this study, the indoor humidity loads in 101 lightweight timber-frame detached houses occupied by single families have been measured and analyzed. The temperature and relative humidity (RH) are measured at one-hour intervals over one-period in bedrooms, living rooms, and outdoors. Ventilation rates are measured with a passive tracer gas technique. Based on temperature and RH measurements, the difference between indoor and outdoor air absolute humidity is calculated. For hygrothermal design, the maximum moisture supply at the 10% critical level in the houses with low occupancy is +4 g/m3 during the cold period (Tout¡Ü+5¡ãC) and +1.5 g/m3 during the warm period (Tout¡Ý+15¡ãC). Between these outdoor temperature values the moisture supply changed linearly. Different moisture supply levels and their dependence on outdoor temperature are given. An average moisture supply and moisture production values are calculated for the use of indoor climate simulations. A moisture supply design curve is given for the humidification case with a set point of 25% indoor RH.

This publication in whole or part might be found online. Check the sources on the related article below. Or use search engines on the web.
Related Concepts

Author Information and Other Publications Notes
Kalamees, T.
Department of Civil Engineering, Tallinn Technical University, Ehitajate tee 5, 19086, Tallinn, Estonia
  1. Estonian climate analysis for selecting moisture reference years for hygrothermal calculations
  2. Hygrothermal calculations and laboratory tests on timber-framed wall structures
  3. Hygrothermal criteria for design and simulation of buildings
  4. Principles to analyze the moisture performance of timber-framed external wall assembly due to diffusion
  5. The effect of combining a relative-humidity-sensitive ventilation system with the moisture-buffering capacity of materials on indoor climate and energy efficiency of buildings
  6. The effects of ventilation systems and building fabric on the stability of indoor temperature and humidity in Finnish detached houses  
Vinha, J.
Department of Civil Engineering, Tampere University of Technology, P.O. Box 600, 33101, Tampere, Finland
  1. Drying of timber-framed wall structures
  2. Estonian climate analysis for selecting moisture reference years for hygrothermal calculations
  3. Hygrothermal calculations and laboratory tests on timber-framed wall structures
  4. Moisture and bio-deterioration risk of building materials and structuresL?hdesm?ki
  5. Moisture behavior of timber-framed external wall structures in Nordic climate
  6. Moisture transport in timber-framed external wall structures in Nordic climate - laboratory tests
  7. Principles to analyze the moisture performance of timber-framed external wall assembly due to diffusion
  8. The effects of ventilation systems and building fabric on the stability of indoor temperature and humidity in Finnish detached houses
  9. Water vapour transmission in wall structures due to diffusion and convection  
Kurnitski, J.
Laboratory of Heating, Ventilating and Air-Conditioning, Helsinki University of Technology, PO Box 4400, 02015 HUT, Helsinki, Finland
  1. Crawl space air change, heat and moisture behaviour
  2. Crawl space types and building physics
  3. Facade design principles for nearly zero energy buildings in a cold climate
  4. Fungal spore transport through a building structure
  5. Humidity control in outdoor-air-ventilated crawl spaces in cold climate by means of ventilation, ground covers and dehumidification
  6. Microbial contamination of indoor air due to leakages from crawl space- a field study
  7. Moisture conditions of outdoor air ventilated crawl spaces in apartment buildings in a cold climate
  8. The effects of ventilation systems and building fabric on the stability of indoor temperature and humidity in Finnish detached houses  


CRDBER, at CBS, BCEE, ENCS, Concordia,