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A comparison of the Nordtest and Japanese test methods for the moisture buffering performance of building materials

Roels, S., Janssen, H.
2006
Journal of Building Physics, 30(2): 137-161
Dynamic loading; Hygric response; Moisture buffer value; Moisture buffering

Roels, S., Janssen, H., (2006), "A comparison of the Nordtest and Japanese test methods for the moisture buffering performance of building materials", Journal of Building Physics, 30(2): 137-161.
Abstract:
Two test methods, one worked out in a Nordtest project and the other available as a Japanese Industrial Standard, both developed to characterize building materials with respect to moisture buffering performance, are analyzed in detail by a numerical study on four different materials. Both test methods are based on a similar kind of dynamic loading, but the specifications of each test protocol vary. Therefore, the sensitivity of the test protocols is investigated by varying different protocol parameters. Subsequently, the practical applicability of the obtained values is investigated by confronting the values obtained for the four materials with the dynamic response of a small room with each of the materials used in turns as finishing material. Finally, the results determined according to the dynamic test protocol are compared with values calculated from steady-state material data. ? 2006 SAGE Publications.

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Author Information and Other Publications Notes
Roels, S.
Department of Civil Engineering Laboratory of Building Physics Catholic University of Leuven, Belgium
  1. A comparison of different techniques to quantify moisture content profiles in porous building materials
  2. A quasi-steady state implementation of air convection in a transient heat and moisture building component model
  3. Description of the moisture capacity of building materials
  4. Determination of the isothermal moisture transport properties of porous building materials
  5. Determination of the liquid water diffusivity from transient moisture transfer experiments
  6. Determination of the moisture capacity of porous building materials
  7. Impact, absorption and evaporation of raindrops on building facades
  8. In situ determination of the moisture buffer potential of room enclosures
  9. Microscopic analysis of imbibition processes in oolitic limestone
  10. Modeling fluid flow in fractured media using continuum, network and discrete aproaches
  11. Position paper on material characterization and HAM model benchmarking
  12. Qualitative and quantitative assessment of interior moisture buffering by enclosures
  13. Review of mould prediction models and their influence on mould risk evaluation
  14. Simulating non-isothermal water vapour transfer: an experimental validation on multi-layered building components
  15. Wind-driven rain as a boundary condition for HAM simulations: Analysis of simplified modelling approaches  
Janssen, H.
  1. Conservative modelling of the moisture and heat transfer in building components under atmospheric excitation
  2. Impact, absorption and evaporation of raindrops on building facades
  3. In situ determination of the moisture buffer potential of room enclosures
  4. Qualitative and quantitative assessment of interior moisture buffering by enclosures
  5. The influence of soil moisture in the unsaturated zone on the heat loss from buildings via the ground
  6. The influence of soil moisture transfer on building heat loss via the ground
  7. Wind-driven rain as a boundary condition for HAM simulations: Analysis of simplified modelling approaches  


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