Making my brewery in the basement, I had to paint the bare block walls. There was some efflorescence which I wire brushed off and used Zinsser watertite paint. 3 coats. Guaran damn teed to stop water. well, some spots are blistering and the efflorescence if forming on the surface of the paint Under the front porch, which is concrete, is another problem. The main foundation is block and in great shape. the foot above that is brick and in fair shape, but above ground. The same paint is peeling off all this, the brick is full of frost and the ceiling (poured concrete exposed to the air outside) has icicles. Now, I can put some foam board or something up with glue, but I'm concerned it won't stop the water problem. Thoughts? 1" foam board enough to insulate it and stop this? The efflorescence in the main room of the brewery isn't that big of a deal I spose. mostly cosmetic. But the condensation/water leaks in the other room are a problem.