I've recently completed power washing (gently) my deck and screened porch. I've already re-stained the deck, but several of the vertical wooden surfaces on the porch had some peeling paint. The house is only 5 years old, and the original paint is an outdoor quality latex or oil-based paint. I intended on simply filling and repainting these areas, but is there anything else I should be concerened about? I believe all the deck/porch should be pressure treated / 20.