Wet Weather Masonry Precautions

As the cold winter weather runs its course, wet weather in early spring is imminent. Even when the ambient temperature rises above 40 degrees Fahrenheit, you should consider the consequences of wet weather while planning any masonry construction project. Unless the site and buildings are protected, masonry construction should not continue during significant precipitation.

Partially set or plastic mortar is susceptible to washout, which could result in reduced wall strength or staining.

When rain is likely, newly constructed masonry should be protected with a weather-resistant covering that extends over all mortar that is susceptible to washout.

However, after approximately 8 to 24 hours of curing (depending upon environmental conditions), mortar washout should no longer be a concern. In fact, wet masonry often provides optimal curing conditions for the mortar.