Grout will crack over time in most shower stalls where it is used. Although I have seen it last in a few installations for quite some time.
It seems poor shower stall installations will be problematic from the start.
Proper installations with well constructed pans seem to be less problematic.
If the joint is failing we will remove all the old grout and replace with caulk.
In large joints we may fill with foam backer prior to caulking.
Caulk is designed to be used in "transition joints" or change of plane, where settling or structural movement is possible. Examples are where a countertop deck meets the backsplash, where tile meets the tub, where wall meets floor. Because caulk is flexible, it can withstand any structural movement that may occur without cracking.
While drying out the moisture is imperative those large joints are just poor workmanship making the joint harder to protect.
Silicone caulk is may work better in a large joint like yours. That shower stall should be re-honed, deep- cleaned and I would try to sell them color sealing.
We use color clad-best color seal I ever used.
From eight base colors we can make over 72 colors on site plus match any color from any grout chart without having to place an order.


 


On Mon, Mar 24, 2014 at 8:52 PM, Hector Castillo <hectorcastillo@comcast.net> wrote:

Hi Stuart

 

I have fix these problems in the past.

1st never use caulking in a shower floor. It will always turns moldy.

I would cut the caulking and grout out. Clean the tile if needed. Clean the grout if needed.

Dry the shower with a dehumidifier 1 to 2 days with a fan, check and see when the mastic dry by eye sight. If dark gray it will turn light gray.

Measure the amount of water coming out per day in a 5 gallon bucket make black marks on side of bucket for seeing when it dries out.

After its dries out match color of sanded grout with color chart bar chip set.

Mix grout with grout harder and install and wait 2 days for grout to cure. Seal on the 3 day and get paid.

 

I charge about 450 to 1500. for this type of repair sometimes more depends on time spent.

I try and charge about 150 to 175 per hr for this work

Hector Castillo

Innovative Surface Restoration

805-739-0169

 

 

 

From: Stuart Young [mailto:santafefc@sbcglobal.net]
Sent: Monday, March 24, 2014 2:18 PM
To: Stone and Tile PROS Technical Support
Subject: [sccpartners] Caulking shower corners

 

Hi, partners,

 

The attached are photos of a shower floor joint where it joins the wall.  It appears that the caulk is coming loose in the corners. What is the best way to remedy this problem, and to keep water from penetrating in these areas?  Grout, caulk, both? Any methods or products that do better than others?

 

Thank you,

 

Stuart Young

Santa Fe Floor Care

 

 

 

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--
Regards,
Stu Rosen
201-446-1200