[masraum]

Originally Posted by gregpark

Ha ha I'd leave the elevation alone. I'd consider it part of the character of your cool old house. IMO the further you distress the floor, the better. Don't worry, no matter what you do it's going to be awesome in the end.

Yep.

Originally Posted by look 171

How bad are the dips on the edges? It may not be as hard as you think but let find out why is it dipping. Tired or not enough foundation? If the first floor is dead flat, they never are, and I don't expect it to be on an old house, what is the cause of the our of lever second floor? maybe poor workmanship? Maybe the joists need to be shimmed where the dips are. I am not there and can't really see the house. It should not be a big deal, but the sub floor has to come out or access it from the bottom that's if the first floor is good. How many inches is it sagging? Leave it.

It's not "dips on the edges". I think the home was built by the original inhabitant in 1920 or 1924. The downstairs is fairly level/flat all things considered (you don't notice or feel any big changes, and we had the home leveled when we moved in. Of course, if we get a lot of rain, or have a long dry period, the house moves a lot. I think you'd need a bunch of foundation equipment to really figure out any issues downstairs. But upstairs is crazy. You can feel dips and rises as you walk across the floor. I think this is an approximation of what's going on upstairs.

Originally Posted by gregpark

Unnecessary and undesirable to abrade between final coats. Dust free please! Make sure the windows and doors are shut tight. Put no entry blue tape at eye level across the doors. I do two coats only of final coating. 2 is plenty, any more can result in a finish that's too soft and dents easily.

Great news all around. Glad to hear about not having to abraid! And the 2 coat vs 3 coat thing is also great. The poly can says "3 coats". We had 2 rooms done downstairs by pros while our kitchen was being remodeled. They'd originally said that they were going to do 3 coats, but ended up only doing 2.