Peggy Johnson: Department of Civil and Environmental Engineering, Pennsylvania State University, University Park, PA 16803, USA

Eric Burnett: Department of Civil and Environmental Engineering, Pennsylvania State University, University Park, PA 16803, USA

Experimental work in building science/physics involves various kinds of measurements. Uncertainties associated with these measurements are essential for evaluating the accuracy and quality of the experimental work and more importantly, for evaluating the validity of the experimental conclusions. Performing an uncertainty analysis for a complex measurement system that involves various uncertainty sources and requires multiple levels of uncertainty propagation is not an easy task. A general procedure to perform uncertainty analysis of vapor pressure measurements is described. A sensitivity study is included to demonstrate that it can be used to determine the contribution of each uncertainty source. The influence and validity of an important experimental conclusion is evaluated by considering the uncertainty in measurements obtained in an ASHRAE research project.

• mathematics: error analysis, uncertainty analysis

1. Experimental assessment of position of macro encapsulated phase change material in concrete walls on indoor temperatures and humidity levels
2. Thermal conductivity measurements of a phase change material slurry under the influence of phase change  

1. A review of rain control and design strategies
2. Development of design strategies for rainscreen sheathing membrane performance in wood frame walls
3. Drainage, ventilation drying and enclosure performance
4. Driving rain and building facades
5. Field testing of filled-cavity wall systems
6. Moisture movement in building enclosure wall systems
7. Overview of hygrothermal (HAM) analysis methods
8. Rain control and screened wall systems
9. Simplified prediction of driving rain deposition
10. The Ontario wall drying project
11. Ventilation drying in enclosure wall systems
12. Vents, ventilation drying, and pressure moderation