I have just hit a major setback in my renavation - I ripped up the carpets and found parquet flooring. I already bought the floor tiles for the entire area - the area I inspected (by cutting out patches of carpet) has cement screed; but 2 other areas of the same floor, has 2 different types/thickness parquet flooring also on cement floor. The parquet is down good and solid and in very good condition. My main concern with regards to removing the parquet, is that one area has a very thin block (less than 10mm), so screening the floor won't be an option if I am to match the height of the other surfaces. I have read a number of threads on this site and most are of the opinion that tiling over the parquet is a bad idea; but those all seem to be concerns over movement of the parquet over timber. Should I be concerned about laying the ceramic tiles over this surface? I was thinking that I could use a key coat over the parquet (same as ai would over old tiles or surfaces with glue residue), but the amount of installers cautioning against timing over parquet (on this and other forums) have me in a panic.

I have a ranch home built in the early 1950s. The bathroom tub is on an outside wall and the wall above the tub has glazed tile to 4 feet above the tub. I would like to install a grab bar on this tiled wall. However, I am having problems finding the wall studs behind the tiles. My Zircon stud sensor is giving odd results - it tells me there is a stud every 5 inches? Wondering if the stud finder will not work through tile? Or is the wall behind the tiles constructed in some peculiar way back in the 1950s? Any input/suggestions would be appreciated, Frank