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A new test method to determine the relative drying capacity of building envelope panels of various configurations

Alturkistani, A., Fazio, P., Rao, J. and Mao, Q.
2008
Building and Environment, 43(12): 2203-2215
Building envelope performance; Large-scale experiment; Moisture mapping; Drying capacity; Gravimetric samples

Alturkistani, A., Fazio, P., Rao, J. and Mao, Q., (2008), "A new test method to determine the relative drying capacity of building envelope panels of various configurations", Building and Environment, 43(12): 2203-2215.
Abstract:
In the context of a collaborative research project with industry and government, a two-story test hut, consisting of thirty-one 2438 mm (8 ft) high and 762 mm (View the MathML source) wide wall assemblies and installed with 25 gravimetric samples in each assembly to monitor the moisture content change, was designed and erected within a large-scale test chamber to investigate the drying capacity of different envelope configurations. The test was performed under steady-state climatic loadings representing wet seasons. Uniform moisture loading was achieved by the use of water trays on load cells placed on the bottom plate within the stud cavities of the wall assemblies. This method submits the different wall configurations to wetting by evaporation and drying by evacuating moisture out of the stud cavity. In search for an indicator or yardstick of the relative drying capacity of different wall configurations, a new calculation method by mapping was developed. The method estimates the amounts of moisture absorbed by components surrounding the stud cavity. The moisture transported out of the cavity is the difference between the total water evaporated from the tray and the water absorbed by the wall components. The ratio between the water evaporated and the vapor evacuated is an indicator of the drying capacity of a given wall configuration in relation to others subjected to a predetermined set of conditions.

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Author Information and Other Publications Notes
Alturkistani, A.
  1. A new testing method to evaluate the relative drying performance of different building envelope systems using water trays
  2. Large scale experimental investigation of the relative drying capacity of building envelope panels of various configurations
  3. Test method to measure the relative capacity of wall panels to evacuate moisture from their stud cavity  
Fazio, P.
Paul Fazio, Professor of Building, Civil & Environmental Engineering, Concordia University, Montreal
  1. A limit state design (LSD) approach for comparing relative drying performance of wood-frame envelope systems with full-scale lab, A roadmap towards intelligent net zero- and positive-energy buildings,
  2. A new testing method to evaluate the relative drying performance of different building envelope systems using water trays
  3. A quantitative study for the measurement of driving rain exposure in the Montr¨¦al region
  4. A review of research activities in energy efficiency in buildings in Canada
  5. Airtightness testing and air flow modeling of two and three-unit multifamily buildings
  6. Airtightness testing of two- and three-unit buildings with a single fan
  7. Approach for the simulation of wetting due to rain infiltration for building envelope testing
  8. Approach for urban driving rain index by using climatological data recorded at suburban meteorological station
  9. Behavior of wall assemblies with different wood sheathings wetted by simulated rain penetration
  10. Building Physics: 3rd International Conference in Building Physics
  11. Building pressurisation can affect possibility of mould growth
  12. Cavity pressure in rain screen walls
  13. Comparaison de m¨¦thodes de mesure de flux de chaleur pour sp¨¦cimens de grandes et moyennes dimensions
  14. Continuous folded plate structures under uniform load
  15. Creative case adaptation for building engineering design
  16. Design and construction of an environmental chamber facility
  17. Design Methodology of Solar Neighborhoods
  18. Development of experimental procedure to evaluate potential movement of mold spores from wall cavity to indoor environment
  19. Development of HAM tool for building envelope analysis
  20. Effect of capillarity on rainwater penetration in the building envelope
  21. Environmental chamber for investigation of building envelope performance
  22. Essai sur les toits plats isol¨¦s ¨¤ la fibre de cellulose
  23. Evaluation of radiance's genBSDF capability to assess solar bidirectional properties of complex fenestration systems
  24. Experimental evaluation of potential transport of mold spores from moldy studs in full-size wall assemblies
  25. Experimental setup for the study of air leakage patterns
  26. Experimental study of temperature distributions across two curtain wall systems
  27. Folded sandwich plate structures
  28. Identification and transport investigation of microbial volatile organic compounds in full-scale stud cavities
  29. IFC-based framework for evaluating total performance of building envelopes
  30. Impact of added insulation on air leakage patterns
  31. Impact of air leakage pattern on reinsulated walls
  32. In-cavity evaporation allowance--A drying capacity indicator for wood-frame wall system
  33. Influence of air space on multi-layered material water vapor permeability measurement
  34. Influence of facade geometry on weathering
  35. Integrated analysis of whole building heat, air and moisture transfer
  36. Interzonal air and moisture transport through large horizontal openings in a full-scale two-story test hut: Part 1 - Experimental study
  37. Interzonal air and moisture transport through large horizontal openings in a full-scale two-story test-hut: Part 2- CFD study
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  39. Mapping of air leakage in exterior wall assemblies
  40. Measuring air leakage characteristics with flexible double air chambers
  41. Measuring air leakage of full-scale curtain wall sections using a non-rigid air-chamber method
  42. Methods for the assessment of moisture content of envelope assemblies
  43. Modeling of moisture behavior of wood planks in nonvented flat roofs
  44. Modelling of indoor air humidity: the dynamic behaviour within an enclosure
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  46. Moisture performance of leaky exterior walls with added insulation
  47. Nonlinear elastic analysis of panelized shear sandwich walls
  48. Numerical investigation of the influence of room factors on HAM transport in a full-scale experimental room
  49. Performance evaluation protocol for full-scale wood-frame building envelopes
  50. Potential of rain screen walls to prevent rain penetration: pressurized cavity principle
  51. Quantitative driving rain exposure on a vertical wall at various Canadian cities
  52. Rapport Final Projet Site Internet - L'enveloppe du batiment et l'efficacit¨¦ ¨¦nerg¨¦tique
  53. Review and framework for large-scale laboratory studies on wetting and drying of building envelopes
  54. Study of the reduced impact of thermal bridges in two sprayed-applied polyurethane wall assemblies
  55. Study on thermal performance of curtain walls using infrared thermography
  56. Test method to measure the relative capacity of wall panels to evacuate moisture from their stud cavity
  57. Testing of flat roofs insulated with cellulose fiber
  58. The dynamic modelling of air humidity behaviour in a multi-zone space
  59. Transfer of heat, moisture and air through metal curtain walls
  60. Transient model for coupled heat, air and moisture transfer through multilayered porous media
  61. Use of an environmental chamber to investigate large-scale envelope specimen hygrothermal performance  
Rao, J.
Department of Building, Civil, and Environmental Engineering, Concordia University, Montreal
  1. A limit state design (LSD) approach for comparing relative drying performance of wood-frame envelope systems with full-scale lab, A roadmap towards intelligent net zero- and positive-energy buildings,
  2. A new testing method to evaluate the relative drying performance of different building envelope systems using water trays
  3. Building Physics: 3rd International Conference in Building Physics
  4. Building pressurisation can affect possibility of mould growth
  5. Comparaison de m¨¦thodes de mesure de flux de chaleur pour sp¨¦cimens de grandes et moyennes dimensions
  6. Design and construction of an environmental chamber facility
  7. Development of experimental procedure to evaluate potential movement of mold spores from wall cavity to indoor environment
  8. Development of HAM tool for building envelope analysis
  9. Effect of capillarity on rainwater penetration in the building envelope
  10. Environmental chamber for investigation of building envelope performance
  11. Evaluation of radiance's genBSDF capability to assess solar bidirectional properties of complex fenestration systems
  12. Experimental evaluation of potential transport of mold spores from moldy studs in full-size wall assemblies
  13. Experimental study of temperature distributions across two curtain wall systems
  14. Identification and transport investigation of microbial volatile organic compounds in full-scale stud cavities
  15. In-cavity evaporation allowance--A drying capacity indicator for wood-frame wall system
  16. Interzonal air and moisture transport through large horizontal openings in a full-scale two-story test hut: Part 1 - Experimental study
  17. Interzonal air and moisture transport through large horizontal openings in a full-scale two-story test-hut: Part 2- CFD study
  18. Measuring air leakage characteristics with flexible double air chambers
  19. Measuring air leakage of full-scale curtain wall sections using a non-rigid air-chamber method
  20. Numerical investigation of the influence of room factors on HAM transport in a full-scale experimental room
  21. Review and framework for large-scale laboratory studies on wetting and drying of building envelopes
  22. Statistical analysis of microbial volatile organic compounds in an experimental project: identification and transport analysis
  23. Study of the reduced impact of thermal bridges in two sprayed-applied polyurethane wall assemblies
  24. Test method to measure the relative capacity of wall panels to evacuate moisture from their stud cavity
  25. Transfer of heat, moisture and air through metal curtain walls
  26. Use of an environmental chamber to investigate large-scale envelope specimen hygrothermal performance  
Mao, Q.
  1. A limit state design (LSD) approach for comparing relative drying performance of wood-frame envelope systems with full-scale lab, A roadmap towards intelligent net zero- and positive-energy buildings,
  2. A new testing method to evaluate the relative drying performance of different building envelope systems using water trays
  3. Effect of capillarity on rainwater penetration in the building envelope
  4. Experimental Determination of Drying Capacity of Wood-Frame Envelope Systems for Comparative Studies and Limit State Design
  5. In-cavity evaporation allowance--A drying capacity indicator for wood-frame wall system
  6. Test method to measure the relative capacity of wall panels to evacuate moisture from their stud cavity  


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