shower plane change silicone over grout

[KDB101]

hello,
I'm getting close to finishing my shower. while grouting the floor I had let some grout get pushed into the wall transitions. question: do i really need to remove this grout before I apply silicone? see picture.
thanks, kame.

[Houston Remodeler]

Dig out as much as possible. This joint allows for movement. The grout doesn't

[Tool Guy - Kg]

Not only that, but a bead of silicone will distort from movement without tearing or cracking if there's only silicone in there vs. a thin coating over grout. If you want it to perform and last a long time, clean out the grout.

[KDB101]

Got it. Thank you.

[KDB101]

Is there a best practice to do this so as not to disturb the kerdi membrane? tile is 3/8" thick.

[Houston Remodeler]

Patience + skill + proper tool selection (heavy on the patience)

You can use a grout removal tool (manual) with care, or a dremel, or dental tools....

[Tiger Mountain Tile Inc]

You have to be careful not to disturb the waterproofing when doing this. Try to get it all out but err on the side of not screwing up your waterproofing.

[Simplyjames]

Usually best to take a shim to the inside corners after final wipe down before grout sets too hard. Probably too late for that at this point. Safer than an angled blade in a Stanley knife might be a standard square blade in a holder. You can run this into the grout on a slight angle and better control the depth.


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