We've pressure washed our PT deck several times over the years, and have ended up with some very rough boards. The PT lumber is completely sound, but it doesn't look good.
What kind of sanding media can stand up to the occasional protruding nail head? I've pulled the nails that popped, and replaced them with screws. There are still a bunch that protrude a bit, but I can't pull them or set them because they seem to have gone in at an angle. I've never seen a deck built with as many nails as this one. Every board has three, four, or five nails driven into every joist.
Every piece of sandpaper I've ever worked with self-destructs the moment it hits a nail head...
Last edited by houseinthewoods; 06-23-2010 at 01:42 PM.
Sorry house...its hands and knees time. Only a very course sand paper could 'shine' the protruding nail heads, but then you have gradual sanding after. If its possible to get access from underneath, you can hammer the planks up, then hammer back down to remove nails and then screw.
"cc" is correct and how my knees know this. Bite the bullet, get you a good claw hammer, something to pad your knees ( I like a kitchen floor mat), and move along to pound those nail heads down. Sometimes I run into one which will not stay down, remove the nail and replace it with a stainless steel deck screw. I use one of the "Sanding Machines" for sanding drywall. You know--a stick with a sanding pad on it, and lot's of elbow grease. At my age I need grease fittings in my elbows and knees to help. Resurrecting a tired, worn-out deck takes a lot of work, but the results can be very nice. David