Good day folks,

We recently purchased an older house that had been updated about 10 years ago.

The small ensuite washroom is quite nice but has an awkward layout. The shower has a slanted ceiling and is completely covered in what I believe is natural slate tile.

After living in the house for a couple months we've experienced a few issues and are looking for advice on how to deal with them since many of the materials used in the washroom are unfamiliar to us.

First, I believe the tile and grout need to be re-sealed, or perhaps were never sealed in the first place. We're having trouble with soap scum or hard water turning the tiles whiteish, which is really difficult to clean off.

We generally use simple green for cleaning the showers, and it does say it's safe for slate, but it doesn't help at all with the white residue on the tiles. Even when scrubbing with a microfiber cloth.

Is re-sealing difficult or is it something we can easily do ourselves? Can someone recommend a cleaner that is safe to use on natural slate tile that will more easily deal with the white residue? I wouldn't want to seal over a dirty surface.

Second, we've been experiencing a lot of leaking below the shower door. The door is frameless glass, with a plastic door sweep seal at the bottom. The leaking is mostly coming through the grout lines in the tile because they're not flush with the tile itself and the seal strip leaves a tiny gap in those areas.

After replacing the seal on the door, can anyone advise on the best way to stop this leaking? A temporary and permanent solution both would be appreciated if they're different. Can I just place a tiny blob of silicone caulking on the grout lines under the door, or is there a better solution? My caulking skills are poor.

If it makes a difference, the bathroom floor is the same tile as the shower. The shower floor is a smaller tile of the same material.

Third, since the ceiling is slanted, the bathroom fan is on the wall, which is above a recessed cabinet beside the shower. There is a 12" gap above the shower door to allow the steam to escape.

The bathroom fan is 90 CFM, which sounds more than sufficient for a small washroom. The ceiling get's coated in steam after a shower and I'm worried about this excess moisture.

I was planning on upgrading the fan to help, and just want to confirm if that's the best way to go or if there is anything else that is recommended?

We do wipe down the ceiling after a shower, but I tend to take very hot showers and that's not something I want to sacrifice. There are already water lines on the ceiling and I'm worried about mold or other damage occurring from the moisture. The bathroom walls also have wood beadboard and the bedroom itself has hardwood floor and beadboard on the walls.

Thanks in advance. Sorry, the glass and tiles are pretty dirty, I didn't get a chance to clean before taking the photos.