ASHRAE Standard 160 specifies performance-based design criteria for predicting, mitigating, or reducing moisture damage to the building envelope, materials, components, systems, and furnishings, depending on climate, construction type, and HVAC system operation. The 2016 revision to Standard 160 incorporates a number of changes focused ona. simplifying the conditions necessary to minimize mold growth by eliminating two criteria,b. limiting indoor relative humidity to 70% or less in the design analysis and revising the residential design moisture generation rates,c. simplifying the calculation procedure for wind-driven rain without significantly impacting the accuracy of results, d. updating references, and e. replacing the simplified mold growth criterion with a mold index that predicts risk, which is more consistent with assembly performance observed in the field.The revised standard reflects the current state of knowledge about mold growth while providing less stringent criterion.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | ANSI\/ASHRAE Standard 160-2021 <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | 1. PURPOSE 2. SCOPE 3. DEFINITIONS, ABBREVIATIONS, AND SYMBOLS <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Table 4-1 Indoor Design Temperature Table 4-2 Indoor Design Relative Humidity, Simplified Method 4. CRITERIA FOR DESIGN PARAMETERS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Figure 4-1 Design indoor relative humidity, simplified method. Table 4-3 Residential Design Moisture Generation Rates <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Figure 4-2 Plan view of building with definition of wind angle to exposed wall. Table 4-4 Exposure Factor <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5. CRITERIA FOR SELECTING ANALYTICAL PROCEDURES 6. MOISTURE PERFORMANCE EVALUATION CRITERIA <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Table 6-1 Recommended Mold Sensitivity Classes for Various Materials Figure 6-1 Critical surface relative humidity as a function of surface temperature for different material sensitivity classes. <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Table 6-2 Parameters for Equations 6-4 and 6-6 <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 7. REPORTING <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 8. REFERENCES <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | INFORMATIVE APPENDIX A: FLOWCHARTS Figure A-1 Flowchart of moisture-control design process using Standard 160. <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Figure A-2 Flowchart of process for finding indoor design humidity. Figure A-3 Flowchart of process for finding indoor design humidity by the intermediate method. <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | INFORMATIVE APPENDIX B: COMMENTARY ON STANDARD 160 <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Table B-1 Examples of Materials in Different Sensitivity Classes Table B-2 Values for Different Materials Based on Longer-Term Measurements <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | INFORMATIVE APPENDIX C: BIBLIOGRAPHY <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | INFORMATIVE APPENDIX D: ADDENDA DESCRIPTION INFORMATION Table D-1 Addenda to ANSI\/ASHRAE Standard 160-2016 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" ASHRAE Standard 160-2021 — Criteria for Moisture-Control Design Analysis in Buildings (ANSI Approved)<\/b><\/p>\n |