I am an architect in the New York area. On one project I am working on, the tops of the masonry walls were left exposed to weather for several weeks. During this time, severe rains saturated the walls. Should the walls be rebuilt? What problems can I expect?
The most likely outcome of saturated walls will be excessive efflorescence until the construction water dissipates. If the walls were built close to winter, there also may be some problem with freeze/thaw deterioration. One such exposure probably will not cause substantial freeze/thaw degradation unless all the cores are filled with water. Examine the walls in the spring and repair any damaged areas then.