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Infiltration - Heat Loss from Buildings
Estimated heat loss from building by infiltration
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Estimated heat loss from
- Offices, apartments, hotels ...
- Entrance halls, vestibules ...
- Industrial buildings ...
- Houses ..
- Public buildings ..
by infiltration are indicated in the charts below.
Infiltration rates through various Types of Wall Construction
| Infiltration Rates (cu.ft per foot of crack per hr.) | ||||||
| Wall Type | Wind Velocity (mph) | |||||
| 5 | 10 | 15 | 20 | 25 | 30 | |
| Frame Wall with lath and plaster or wallboard | 0.03 | 0.07 | 0.13 | 0.18 | 0.23 | 0.26 |
| Brick Wall, 8 1/2" plain | 2 | 4 | 8 | 12 | 19 | 23 |
| Brick Wall, 8 1/2" plain with plaster or wallboard | 0.02 | 0.04 | 0.07 | 0.11 | 0.16 | 0.24 |
| Brick Wall, 13" plain | 1 | 4 | 7 | 12 | 16 | 21 |
| Brick Wall, 13" plain with plaster or wallboard | 0.01 | 0.01 | 0.03 | 0.04 | 0.07 | 0.10 |
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