Are these steps for refreshing a patio floor correct?
Tightening the screws is really important you might want to replace some with slightly longer as the holes over time will not hold well (if they hold you are golden). sanding with a coarse grit to get the paint off is a good idea to help reduce the high spots also the heavy weathering After sanding you will wand to clean the deck to remove the dust from the grain and screw heads. I have used a product that home depot sells called Restore. this looks nice but I think it comes in brown and Tan. Restore will help hide the heavy weathering and you really don't need to finish sand only rough sand or pressure wash to get rid of the loose paint. I have refinished horribly weathered decks with Restore that came out looking really nice. The first one was 6-8 years ago and it still looks close to the way it did when I put it down. No matter what you use the boards are "dry" other than minor water penetration and you should have no problems with cupping or warping. Exposed boards really warp and or cup much faster than sealed boards.