During the heating season, the vapor flow in conditioned buildings is generally from
A)the outside to the inside of the envelope.
B)the inside to the outside of the envelope.

Question

Quizplus · Accepted Answer

During the heating season, the temperature inside the building is warmer than the outside, which means that the air has a greater capacity to hold moisture. As a result, the vapor flow tends to move from the inside to the outside of the building envelope.

During the Heating Season, the Vapor Flow in Conditioned Buildings