I have an interesting dilema. I've been remodeling and restoring houses for over ten years, and only recently (in my own house) have I had the opprotunity to install a new bathtub.
We are restoring/remodeling an 1880's farm house. I turned one of the upstairs bedrooms into a Masterbath and a walk in closet. The original bedroom was 13'x13' and I made the bathroom 8'x13' w/ a 5'x13' walk in closet. The floor joists are old growth 2"x8" 24"o.c., I reinforced them by sistering new 2x8's the full span of the floor, resulting in 4x8's 24" o.c. over a 13' span. The floor has 3 1/2" T&G fir that I put 1/2" hardib (including under the tub) and then tiled. The tub is a 5' x 21" deep acrylic tub that I put a tiled surround around.
I installed the tub along the exterior wall per the manufacturers instructions using construction adhesive on the feet. The tub had a slight squeak when it was framed in before I tiled which went away when a placed a shim under the lip of the front on the faucet side. After I tiled, everything was fine until the first bath. Now the tub squeaks everytime you step near it. I did grout right up to the tub because I was in a hurry and was planning on pulling the grout out and caulking later. I haven't had time for that yet, but I wondered if it would really help anyway.
On a side note: I installed the same type of tub in a downstairs bath and while I was tiling it, there was squeaking as well I noticed that a piece of Hardib was rubbing against the tub and when I adjusted it went away. The floor under this tub is rock solid with 2x8's 12"o.c. with two layers of 3/4" plywood.
At long last, my question is: Does anyone have any ideas on the best method of making the squeak go away? Should I pull the grout from around the tub and inbetween the tiles and try to put 1/4" wide shims along the front? Or, is there something about acrylic tubs that I should know. Any input would be greatly appreciated.
P.S. I've posted a couple of comments, but this is my first question to BT. I've attached some photos. (I deleted the photos because of their size and posted them later at a smaller size)
Edited 2/12/2007 7:13 pm ET by ottcarpentry