Too much paint, too little primer, and water in the wrong places are some of the reasons paint jobs don't hold up. KEEPING THE PAINT ON No primer here led to poor adhesion and wholesale peeling to bare wood. One telltale sign was no trace of any white pigment on the wood or the back of the paint chips. Make sure you prep and paint the butt edges and butt joints-to prevent this type of water penetration and peeling. Also avoid painting when the wood is swollen with moisture-lest it shrink and crack the paint at joints. This is more common with oil-base paint, since it's less flexible than latex. Backed-up water
