Abstract: This letter provides the design criteria to ensure control of humidity inside dormitories in humid areas. Areas not covered by this Engineering Technical Letter (ETL) remain in accordance with existing guidance. This ETL applies to the design of new or renovated dormitories at Air Force bases in humid areas as described below that are not 35 percent designed. Ultimate recipients of this ETL are MAJCOMs, bases, and Air Force design and construction agents responsible for facilities in humid areas. Existing criteria for Air Force dormitory facilities do not control interior space humidity successfully when applied in humid area. For the purpose of this ETL, humid areas are defined as having over 3000 hours of 67 F or higher wet bulb temperature in combination with an outside design condition of 50 percent relative humidity or higher, or over 1500 hours of 73 F or higher wet bulb temperature in combination with an outside design condition of 50 percent relative humidity or higher, based on 2.5 percent dry bulb and 5 percent wet bulb temperatures. The high ambient moisture and temperature common in high humidity areas reverse vapor flow through building components and increase the latent cooling load on HVAC equipment when compared to the design conditions for most other CONUS locations
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Engineering technical letter. |
| Pages: |
15 |
| Report Date: |
13 JUL 93 |
| Report Number: |
A206072 |
|
|
|
|
Keywords relating to this report:
