| | BUILDING MOISTURE AND DURABILITY |
| | 1,04 | | MB |
| | 115 | | stron |
| | 5052 | | ID | Partnership for Advancing Technology in Housing |
| | 2004 | | rok |
| | CONTENTS |
| | EXECUTIVE SUMMARY ii |
| | 1. Introduction1 |
| | 2. Research Goals3 |
| | 2.1 Build Additional Knowledge about the Moisture Problem in Housing4 |
| | 2.2 Prevent and Correct Specific Moisture Problems.4 |
| | 2.3 Realize the Potential of Moisture Modeling Tools.5 |
| | 2.4 Summary of Suggested Moisture Research Projects 6 |
| | 3. Build Knowledge about Moisture Problems.8 |
| | 3.1 Develop Reliable Quantitative Information Documenting the Nature, Frequency, Severity and |
| | Impacts of Moisture Problems in Housing .8 |
| | 3.2 Improve Scientific Understanding of the Relationship Between Moisture in Homes and Health |
| | Outcomes10 |
| | 4. Prevent and Correct Specific Moisture Problems.13 |
| | 4.1 Encourage Moisture Protection in Building Design and Construction. 13 |
| | 4.2 Improve Moisture Protection Through Codes and Standards. 15 |
| | 4.3 Detect and Correct Moisture Problems Before Serious Damage Occurs .16 |
| | 4.4 Use New Technologies to Reduce Vulnerability to Moisture Damage 18 |
| | 5. Realize the Potential of Moisture Modeling Tools. 22 |
| | 5.1 Fill in Data Gaps that Limit Modeling Accuracy .22 |
| | 5.2 Demonstrate Robustness and Extend Modeling Capabilities .23 |
| | 5.3 Translate Modeling Results into Practice .25 |
| | APPENDIX A: LITERATURE REVIEW AND ANALYSIS. 27 |
| | A.1 Introduction 28 |
| | A.2 Bulk Moisture Problems .29 |
| | A.2.1 Introduction. 29 |
| | A.2.2 General Literature .30 |
| | A.2.3 Assessment of Bulk Moisture Problems .39 |
| | A.2.4 Bulk Moisture Hazards (Sources and Loads) . 48 |
| | A.2.5 Bulk Moisture Effects by Building Subsystem, Components and Materials56 |
| | A.3 Water Vapor-Related Moisture Problems.69 |
| | A.3.1 Introduction. 69 |
| | A.3.2 Water Vapor Problems and Causes - General Approach 71 |
| | A.3.3 Water Vapor Issues in Exterior Walls 72 |
| | A.3.4 Water Vapor Issues in Attics and Cathedral Ceilings.78 |
| | A.3.5 Water Vapor Issues in Building Foundations .79 |
| | A.3.6 Water Vapor Issues in the Indoor Environment .82 |
| | A.3.7 HVAC-Related Water Vapor Issues .86 |
| | A.4 Moisture Modeling, Design and Analysis Tools 92 |
| | A.4.1 Manual Design Tools93 |
| | A.4.2 Dynamic Modeling - General .94 |
| | A.4.3 Specific Modeling Tools. 95 |
| | APPENDIX B: ONGOING RESEARCH 98 |
| | B.1 Introduction 99 |
| | B.2 Project Descriptions 99 |
| | APPENDIX C: COORDINATION OF FUTURE RESEARCH.105 |
| | C.1 Introduction.106 |
| | C.2 Organizations Involved in Moisture Research.106 |
| | C.2.1 Federal Agencies106 |
| | C.2.2 Nonprofits, Associations and Universities.107 |
| | C.2.3 Private Sector Companies 107 |
| | C.3 Research Coordination Process108 |
| | C.3.1 Existing Venues for Coordination .108 |
| | C.3.2 A Potential Federal Approach..109 |