[SMLWinds]

I have been laying some white carrera marble tile and it is turning out wonderfully. I admit I have been aggressive about getting 100% coverage on the tiles and so have probably leaked a little more thinset into my tile joints than I have on previous jobs. With that said, I have a few questions:

1) What is the function of grout? Is it purely cosmetic or is it a key structural component?

2) How deep does the grout need to go? Obviously you don't want it to be 2-3mm thick, but how deep down do I need to clean the joint lines before grouting?

3) What is the best way to clean the joint lines and/or clean thinset that may have gotten onto the surface of the tile? I have used a little grout scraper in the past for the joints. How about the spot here or there on the surface? Obviously it scrapes off but I don't want to use anything metal that may scratch the tile.

Thanks in advance for the help!

 

[WhatRnsdownhill]

grout helps keep the water out from behind the tiles, as you tile keep a few thin wooden sticks or a flat headed screwdriver to run between the tiles to remove any thinset before it dries, is the easiest way to prevent an issue before it becomes one..they make grout line cleaners, home depot or lowes should have them..the deeper the grout the better, there may be an additive( like you do to thinset) to mix with the grout to make it stick better where it will be shallow...

 

[JazMan]

Grout-line cleaners? You mean a solution or some kind of tool? I don't think I'd use a screwdriver to remove grout.

If you apply too much thinset, or slide the tiles too much, I recommend a small piece of tile box cardboard followed by a sponge. You always need the sponge regardless.

1. cosmetic and structural.

2. In general you should leave ⅔ of the space for grout.

3. For joints where there is no waterproofing membrane to damage; A utility knife held at a slight angle, (dog-track), then sweep or vacuum. A damp sponge will remove excess dried thinset from the surface. A single edge razor blade comes in handy at time.

Jaz

 

[WhatRnsdownhill]

screwdriver is to remove the still wet thinset from between the tiles..