In: Civil Engineering
1) Moisture diffusion is when moisture-laden air infiltrates between different building materials. True or false?
2) Tyvek (or any house wrap) is generally considered to be a:
a. |
vapor retarder |
|
b. |
air retarder |
|
c. |
sheathing |
|
d. |
siding |
3) Moisture can enter a building through which of the following?
a. |
air infiltration |
|
b. |
capillary attraction |
|
c. |
diffusion |
|
d. |
leaks |
|
e. |
all of the above |
|
f. |
a and d only |
4) A "smart" vapor retarder (barrier) changes permeability with humidity. True or false?
5) In heated buildings, the vapor flow is generally
from the inside to the outside of the envelope. |
||
from the outside to the inside of the envelope. |
Solution is attached in the image posted below. Hope it helps.
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