A consortium research project was initiated to determine the field performance of various thermal insulation products as applied in the exterior insulation basement system (EIBS). Initially a two-dimensional analytical tool was used to derive the thermal transmission characteristics from an array of temperature measurements performed over a period of two years. Results immediately showed the influence of lateral heat flux between various products that differed in thermal transmission properties. Therefore, development of a three dimensional model became imperative. This paper gives the theoretical and numerical approaches adopted to develop a three-dimensional computer model of heat transfer. The implicit Spline Method was selected for the problem solver. The applicability of the model was verified using measured data on temperature distributions at several material interfaces. Then the model was used to estimate the effect of lateral heat flows.

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1. A methodology to develop moisture management strategies for wood-frame walls in North America: application to stucco-clad walls
2. A precision weighing system for helping assess the hygrotherma response of full-scale wall assemblies
3. An approach to validating computational models for hygrothermal analysis - full scale experiments
4. Assembly and Calibration of a Compact Temperature and Relative Humidity Sensor
5. Benchmarking of the advanced hygrothermal model hygIRC with mid scale experiments
6. Executive Summary of Research Contributions Related to Moisture Management of Exterior Wall Systems (MEWS) - Modeling, Experiments, and Benchmarking
7. In-Situ performance evaluation of exterior insulation basement systems (EIBS) - spray polyurethane foam: summary report
8. Summary of Research Contributions Related to Moisture Management of Exterior Wall System (MEWS)-- Modeling, Experiments and Benchmarking  

1. Benchmarking of the advanced hygrothermal model hygIRC with mid scale experiments
2. Defining climate regions as a basis for specifying requirements for precipitation protection for walls
3. In-Situ performance evaluation of exterior insulation basement systems (EIBS) - spray polyurethane foam: summary report  

1. A comparison of empirical indoor relative humidity models with measured data
2. A logical extension of the ASTM Standard E96 to determine the dependence of water vapor transmission on relative humidity
3. A methodology to develop moisture management strategies for wood-frame walls in North America: application to stucco-clad walls
4. A thermal and moisture transport property data base for common building and insulating materials (final report)
5. Application of gamma-ray spectroscopy for determination of moisture distribution in insulating materials
6. Benchmarking of the advanced hygrothermal model hygIRC with mid scale experiments
7. Building envelope design, Part 2: estimating field performance of thermal insulation
8. Criteria for unaccesseptable damage on wood systems
9. Determination of equilibrium moisture content of building materials: some practical difficulties
10. Durability assessments of wood-frame construction using the concept of damage-functions
11. Effect of exfiltration on the hygrothermal behaviour of a residential wall assembly: results from calculations and computer simulations
12. Final Report, IEA-Annex 24, Task 3: Material Properties
13. Indoor and outdoor weather analysis tool for hygrothermal modelling
14. Influence of material properties on the moisture response of an ideal stucco wall: results from hygrothermal simulation
15. In-Situ performance evaluation of exterior insulation basement systems (EIBS) - spray polyurethane foam: summary report
16. MEWS methodology for developing moisture management strategies: application to stucco-clad wood-frame walls in North America
17. Modeling heat, air and moisture transport through building materials and components
18. Moisture buffering capacities of five North American building materials
19. Moisture diffusivity of building materials from water absorption measurements
20. Moisture transport coefficient of pine from gamma ray absorption measurements
21. On implementing experimental biological damage-functions models in durability assessment systems
22. Prediction of moisture response of wood frame walls using IRC's advanced hygrothermal model (hygIRC)
23. Protecting the long-term performance of building envelope components
24. Report from Task 4 of MEWS Project - Environmental Conditions, Final Report
25. Report from Task 8 of MEWS Project - MEWS Methodology for Developing Moisture Management Strategies - Application to Stucco Clad Wood-Frame Walls in North America
26. Taking guess work out of placing air/vapor barriers
27. Use of hygrothermal numerical modeling to identify optimal retrofit options for high-rise buildings
28. Vapor transport characteristics of mineral fiber insulation from heat flow meter measurements
29. Water vapor transmission and moisture accumulation in polyurethane and polyisocyanurate foams