Do you have kids? Bikes get laid against houses, snowballs thrown, and mud splattered. Equally as you'd opt for a wipeable finish for the interior, so also with the exterior. A home which will get this sort of wear must be painted with satin, or perhaps even a semi-gloss paint. http://marioookgc.blogpostie.com/9355222/5-simple-techniques-for-painting-exterior-cement-foundation-walls