Porcelain Can you Silicon on top of grout? Page: 2

[Sefirah]

Thank you - I can pop to the the house and get them later !

 

[Rookery]

The junctions between different surfaces are called movement joints. EG between the shower tray and the wall, at the vertical corners in the shower, where the bath butts up to the wall tiling, where floor tiling meets wall tiling etc etc.. These should not be grouted but left OPEN and siliconed over, preferably with sanitary Silicon such as DOW785. This allows for movement at different rates. It is quite common for some traders to grout the area then Silicon over but by doing this, they are creating a 'rigid' movement joint, which is wrong.

 

[Sefirah]

I see thank you.
Well all of that has been grouted, so that must be the way they do it like he said, grout it and Silicon over it.

To resolve this what should I tell home to do?
Surely it's going to be too much work and risk damage by asking him to take grout of in all those areas?

Is there certain areas I should definitely insist on him removing grout prior to siliconing?

 

[Sefirah]

Iva attached photos showing grout all around the shower tray, bath, and where tiles meet tiles in the corner of two walls.
Am I going to have to ask him to remove all of this grout? And is it actually possible without him damaging anything?

 

[Sefirah]

Where bath too meets wall tile

 

[Sefirah]

Showing different thicknesses of grout around the shower tray:

 

[Sefirah]

Showing different thicknesses of grout around the shower tray:

 

[Old Mod]

I know this is not exactly the answer you were looking for, but you might consider getting a professional mastic man in to complete the task. Get your guy to remove all the grout from the transitions explained above, then get someone in that only does Silicon work for a living.
They are clean, fast, and above all very very neat. It will also lift the finish of your project.
Silicon work can make or break a job, it'll either look excellent, or very very bad.
It's something I always push for with my clients, because they always so much better than me.
And it's worth every penny, in my opinion anyway.

 

[Sefirah]

Thank you, I didn't know they existed!
And if trust them more to know what needs to be siliconed.
Would they take out grout if not all had been removed do you know?

 

[Old Mod]

Thank you, I didn't know they existed!
And if trust them more to know what needs to be siliconed.
Would they take out grout if not all had been removed do you know?

It wouldn't be something they do as a rule, reason being, to keep costs to clients down they're in and out in a very short time. They have to lump jobs together in a day, to make it worth their while visiting. So there would be at least an extra cost. If you're happy with that, then they may.
But don't hold your breath. 🙂