We used unsanded grout for 2 in marble hex--was this a mistake?

threeapplesOctober 9, 2012

This was done on the shower floor and bathroom floor. Everything I'm reading online says sanded is better. If the grout cracks and shrinks what in earth do we do with these millions of grout lines?

Thank you for reporting this comment. Undo

Sanded versus unsanded is based on the width of the grout line:

1/8" or greater, use sanded.
Sanded has...ta da...sand as a bulk filler to minimize shrinkage cracks in wider joints.

If unsanded was used in a wider-than-recommended grout line, it's not a guaranteed recipe for disaster.

If the grout does shrink and crack, it'll usually flake out of the joints as well. Some have simply regrouted over the cracks to fill them in. It's a band-aid approach. It can work. Or it may not work.

The better bet is to remove the grout. I've only had to do it once. I used a diamond bit in a dremel-type of tool. Dusty, dirt.

    Bookmark   October 9, 2012 at 1:01PM
Thank you for reporting this comment. Undo

the tile guy said he used an additive to make it strong. let's hope it holds up.

    Bookmark   October 9, 2012 at 1:10PM
Thank you for reporting this comment. Undo

Most grouts are already modified.

In this case, success will bear more on the amount of water used to mix the grout. The more water he used, the more likely you are to get shrinkage cracks.

Fingers crossed!

    Bookmark   October 9, 2012 at 1:42PM
Sign Up to comment
More Discussions
Photos of your finished bathrooms?
Is there anywhere on this site where people on this...
Cultured Marble vs onyx collection vs solid surface shower pan
1st off, I am a long time lurker in these forums and...
Shower glass strong enough to hold towel?
We will be getting semi-frameless glass shower walls....
Grout experts, Fusion Pro, Kerapoxy, Spectralock, Bostik?
Or Tec Power grout? I'm trying to choose something...
The towel ring and the towel bar
The last bit for my bathroom arrived today, a hand...
Sponsored Products
Smoke Global Awakening Rug
$39.99 | zulily
Arborium Village II Wall Decor
| Dot & Bo
Grohe Seabury Wideset Bidet Faucet - Infinity Brushed Nickel
Modern Bathroom
Round Resin Planter Saucers - SA-12-1510
$19.99 | Hayneedle
Contemporary Indoor/Outdoor Accent Rug: Surya Rugs Julie Cohn Beige 2 ft. x 3
Home Depot
Taylor Antique Nickel Six-Light Island Light
$479.99 | Bellacor
60" Spyder Brushed Steel Three Blades Ceiling Fan
Lamps Plus
Highland Park Large Outdoor Wall Sconce by Troy Lighting
$378.00 | Lumens
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™