I use a weatherproof satin on my porch every year . The product says you only need to redo every 3 to 5 years but yet it comes off every year. Why is this?
<p>Sometimes multiple layers of paint or stain reach a point where the layers simply won’t stay together. Give the history, the best approach is the completely strip all old stain/paint off the porch. Then, after it is thoroughly dry, apply an oil-based primer, and then two top coats of stain. I say use oil-based primer because it has the best adhesion.</p>