I am the Executive Director of a senior housing community in Portland, OR. One of our buildings is brick with a cement foundation/basement (partially above ground, partially below). We want to seal the brick and cement against moisture with siloxane or something similar, and are considering painting the cement with an elastomeric paint over the sealant.
However, we’ve been told that elastomeric paint will wick moisture up from the ground, and ultimately bubble and peel. In fact, our contractor says he won’t warranty the job if we use elastomeric. What’s your take? Should we use the elastomeric, or just a high quality exterior latex?