What's the best flexible grout to use?

D

DHTiling

• Nov 11, 2007

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• #16 of 26

best job lyn is to remove the old grout and get him to re-do the whole floor ..then there will be no difference in grout colour....even if its the same make lyn , flexible grout dries different to normal anyway........

 

G

GazTech

• Nov 11, 2007

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• #17 of 26

The grout must be replaced throughout,one mix is never the same as another...all old grout must be totally removed...hope this helps....Gaz
----
SNAP !!!..........lol

 

Last edited by a moderator: Nov 11, 2007

L

Lyn

• Nov 11, 2007

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• #18 of 26

Grout caulk

Thanks for your professional advice!:yes:

But what about the grout caulk? Is that a good or bad idea to use? The grout lines are 1/4 inches. Since we have hairline cracks throughout the project, I read that grout caulk might be better to avoid further cracking.

Have you used it and should I consider it?

Lyn

 

D

DHTiling

• Nov 11, 2007

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• #19 of 26

it would be a very expensive way of doin it lyn..plus its not a lifetime product....it can deteriorate when washing the floor with detergents etc....

 

L

Lyn

• Nov 11, 2007

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• #20 of 26

flexible grout-- really the solution?

The porcelain tile appears to be holding up well. But the hairline cracks are scattered throughout the job. I figure it must be from some movement to have caused it. Will the flexible grout really make a difference? I'm afraid he will redo the whole floor and we might see it crack again.

Lyn :huh2:

 

D

DHTiling

• Nov 11, 2007

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• #21 of 26

what substrate is it onto lyn....?

 

L

Lyn

• Nov 11, 2007

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• #22 of 26

It's on plywood-- two layers.

Lyn

 

D

DHTiling

• Nov 11, 2007

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• #23 of 26

Maybe the problem could be deflection in the floor...i know in the usa sometimes your tile installer has to do a deflection test first....just a thought ......


There are several reasons for the cracking of grout joints including:-

1. Deflection within the substrate e.g. plywood which has not been sufficiently well supported.
2. Moisture expansion where boards are not water resistant and are therefore not dimensionally stable enough in changing moisture conditions.
3. Poor installation e.g. tiles not adequately bonded to the substrate resulting in loose tiles.
4. The use of a proprietary grout in tile joints which exceed the maximum width of the recommended joints by the grout manufacturer. i.e. drying shrinkage.
5. Joints which have not been completely filled with grout during installation, leaving voids where grout will not be adequately supported underneath the joint.
​

 

Last edited by a moderator: Nov 11, 2007

L

Lyn

• Nov 12, 2007

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• #24 of 26

Do you think the flexible grout will make a difference?

Lyn

 

P

Perry

• Nov 12, 2007

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• #25 of 26

Lyn Daves got it right again i think flexible gout may make the difference certainly worth a try better than the alterative Pete

 

S

smokey1234x

• Dec 9, 2007

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• #26 of 26

flexi grout the whole floor it will fix your problem