We’ve been in our home for a couple of years. We’ve had various issues (this seems to be a common theme for new home owners regardless of the age of the house). The home was built in the 1920s so almost everything is wooden.
This year we’ve noticed a change in the wood floor in many areas of the home. Specifically, more boards creak and some even seem to give more than they used to. Part of this may be caused by the shifting of several sets of jacks used to provide additional support to the floor joists. Until I go back under the house I won’t know if the jacks have shifted – this is very possible if they weren’t set on a solid base such as concrete or blocks.
Regardless, I believe I’ve narrowed down one other cause. The amusing aspect of this is that it turned out to be the opposite of what I expected.
Updated 04/11/2012: I’ve reversed my opinion on using the Roomba on wood floors, especially in an old home. Lately I started to notice that the finish of the floors in all rooms no longer appears as thick and shiny as it did when we first moved into the house. This includes the rooms we recently refinished.
The final piece of evidence is the near lack of finish around some of the air vents, which are places where the Roomba frequently gets hung up. I’m convinced that repeated runs of the Roomba brush across the floors has eroded the finish much faster than would normally occur from foot traffic.
I’ve stopped using the Roomba on the wood floors but it still gets some use on the tiled areas.
About two years ago, just after we purchased our home, I bought an iRobot Roomba 415. It was on sale at Woot for about $120, which was a good price at the time. Even then it wasn’t the newest model but I was confident that it would work well.