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36 votes

What spacing difference is acceptable with a contracted tile job?

When a professional installs a tile floor there should be no visible difference in the thickness of grout lines. I'm not sure what a hard measurement of percentage would be, but lets just say you ...
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  • 26.6k
36 votes
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Why should you add dry mix to water and not the other way round

Yes, there is a very good reason. If you add water to dry mix in the bottom of the container, you get a nearly impossible to incorporate glob of the dry mix at the bottom. On the other hand, if you ...
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  • 20.5k
20 votes

Orange material in grout lines - need help to identify

Looks like schluter ditra waterproofing membrane. Amazon describes it: This universal underlayment specifically designed for ceramic and stone tile eliminates the main cause of cracking in your ...
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  • 4,122
17 votes
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Stains in grout

As suggested by @Ecnerwal, I wrote to Custom Building Products' customer support. Got a reply within 15 minutes: The isolated areas look to be a bit of sealer residue that might not have been wiped ...
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16 votes

What spacing difference is acceptable with a contracted tile job?

The spacing is only the beginning... The trim should be removed before OR they should have tucked the tile under the trim. This is actually funny because doing either one of these things would have ...
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  • 46.2k
14 votes

Why should you add dry mix to water and not the other way round

From Chemistry: "Do like you oughtta: add acid to water" . Besides the "glop" problem mentioned in the answer, there is almost always released heat when dissolving something in ...
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7 votes
Accepted

What is this spongy grout?

If it's at a joint between two planes (e.g. wall and floor or inside corner), then it can be colored or even sanded caulk. Using grout in a corner results in cracking as the structure moves, so caulk ...
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  • 42k
7 votes

Can new grout be layered on top of old grout?

Yes new grout can be installed on old grout. Make sure the old grout is thoroughly cleaned and then wet before installation. I do this all the time. There is absolutely no need to start over and ...
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  • 46.2k
7 votes

Stains in grout

Did you use all the grout at once? Some grouts aren't dry mixed well at at the factory. If you read the fine print it will say to mix the dry grout BEFORE adding water to. So if you do it in ...
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6 votes

Grout or caulk between acrylic bathtub and tile?

My Uncle was a plumber, so I called him, before re-caulking my newish bathtub for the 3rd time. I told him that no matter how good a job I did, scraping & cleaning out the old caulk, spraying a ...
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  • 61
6 votes

Caulk or Grout the base of a toilet?

Code requires toilets to be caulked at the floor, that, IMO is a mistake. If the toilet does develop a leak, it will be restricted under the toilet and the subfloor, and may leak for a while before it ...
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  • 31.3k
6 votes

Caulk or Grout the base of a toilet?

The grout may help to keep the toilet stabile for awhile, but to ensure it remains level and secure you should install shims. I've used plastic building shims that can be snapped-off at 2 inch ...
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  • 10.8k
6 votes

Cleaning Edwardian tiles found under more recent tiles

I did something similar on a smaller area. I used some plastic tools - scrapers etc and some cement remover product. The cement remover product has an acid base (stings like xxxx if you have an open ...
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  • 21.3k
6 votes
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Why is grout at tub edge disintegrating?

It is probably failing because grout was in the gap prior to you caulking over it and it was not clean enough. The gap should not have been grouted at all. You should remove all of the caulk and ...
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  • 13.3k
5 votes

Should I use caulk to fix cracking grout in a shower?

That should have never been grout, joints between walls and other objects should be caulked because movement in those joints will cause the cracking that you now see, and the cracking can lead to ...
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  • 42k
5 votes

Is there a downside to using epoxy grout?

I use epoxy grout all the time. There are good and bad manufacturers for every type of product. So if someone tells you that epoxy grout discolors or has this issue or that... that is really on the ...
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  • 46.2k
5 votes
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Do I seal just the grout or the tiles and grout?

This greatly depends on the type tile you have. If it is a manmade tile such as porcelain, or ceramic, then you don't have to worry about sealing it. Most natural stone tiles, especially softer or ...
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5 votes
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Water seeping from grout in tile shower

Well this is working just like a travertine shower should. Travertine is porous. You can apply sealer but honestly unless the travertine was honed specifically to take sealer - which most ...
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  • 46.2k
4 votes

Grout has gone hard and I have not finished can I add something to it to soften grout to finish the job

No. Grout is basically a form of concrete. If this technology existed then when the government needed to redo roads they would just add this magical potion and road would be redone. A small batch ...
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  • 46.2k
4 votes
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What do I use to fill in the crack between the wall and floor of my tiled bathrooms?

In the bath with the tile base, there is caulk available that is colored to closely resemble a number of colored grouts. Any of the big box stores will carry a good selection of colors. The wood base ...
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  • 31.3k
4 votes
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How to caulking a bathtub with various size edge between wall and tub

Just my thoughts on this: I see mold everywhere, even by the faucet the first thing you need to do is figure out what is behind the tile. If it is drywall you are absolutely wasting your money doing ...
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  • 46.2k
4 votes
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Correct order of operations for caulking + sealing bathroom tile?

Those answers are all wrong, I've been a general contractor for thirty years and have had to repair other "experts" work on a regular basis. seal tile first. clean very well with acetone or lacquer ...
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  • 146
4 votes

Wall in middle of tile floor: grout lines don't match

This is indicative of a poor initial layout, perhaps due to inexperience. An experienced tile setter takes note of the areas where defects (like grout lines that can't line up, small or thin cuts, ...
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  • 33.5k
4 votes
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Is it possible to use waterproof grout + sealer to fix shower room floor leaks?

You can remove the existing grout, and re-grout with an epoxy grout. It's more expensive than regular grout but it's completely waterproof and you won't need too seal it. It's also much stronger than ...
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  • 55.1k
4 votes

Do I have to fix cracked grout right away or not?

Grout is not meant to be a water barrier! Grout is porous. If the cracks are surface grout cracks only, then repairing the grout for cosmetic reasons makes sense. If the underlying water barrier (...
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  • 33.5k
4 votes
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Minimize inconsistent spacing for non-rectified tile

I doubt the tile pieces themselves are bad. You can confirm this by stripping them off one of the bad sheets, and stacking them to see if there is a size variation. More likely, the mesh sheets are ...
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  • 10.3k
3 votes
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What to do about holes in tile grout?

Yes, in all likelihood this can be repaired fairly easily. It is a good possibility that these holes are due to poor quality work where the original grout was not fully squeezed down into the joints. ...
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  • 61.5k
3 votes

How to clean grout over grout?

I seriously doubt that you will remove the dye from the grout using any method. Your best bet is to pick up a grout saw at lowes or home depot for about seven dollars that has a diamond blade on the ...
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3 votes
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Grouting travertine tiles: grout bag or float?

In all my jobs, whether large or small tile, using a grout float has always been the way it has been done. Bagging it would practically do the same thing. The tip of a grout bag is much, much wider ...
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  • 31.3k
3 votes
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Can I re-grout if there is possibility of mold/mildew behind shower?

This is really impossible to answer without opening it up more. But basically it depends on the damage already done. What you really need to do is clean this shower (bleach) and take out any loose ...
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  • 46.2k

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