Stone worktops - glued?

[alphagario]

Hi there

Not really DIY I'm afraid but I wanted to ask if anyone can confirm how silestone worktops should be mounted to a kitchen unit.

Are they glued?

Reason I ask is I've had a worktop fitted and it seems a little loose. Fitters say it is fine. The issue I think is its only glued to the tops of the unit sides, not to a solid base - is that correct ?

I feel like if I pulled hard enough it would lift up. In fact one corner does move a little.

Any advice appreciated

Thanks
Brian

 

[johnny2007]

A few dabs of silicone on the units plus its own weight will keep it there for the rest of your life.

 

[alphagario]

Thanks. So just silicon? And do you mean along the edges as we had a rail installed on top of the island units, or should it be mounted on a flat surface similar to ply?

This is my first stone worktop and must say I'm disappointed at how loose it feels. Hard to describe but basically if I thump it lightly with your fist, it sounds loose.

 

[chirpychippy]

Thanks. So just silicon? And do you mean along the edges as we had a rail installed on top of the island units, or should it be mounted on a flat surface similar to ply?

This is my first stone worktop and must say I'm disappointed at how loose it feels. Hard to describe but basically if I thump it lightly with your fist, it sounds loose.

The fitters often put a few dabs of silicone on each unit side to bond the worktop to the units. Putting ply in would be overkill.

To be honest most people don't try and lift their worktops after they've been fitted

 

[alphagario]

Understood but i'm not really trying to lift it, just seems like it's not been uniformly stuck down. Hard to explain

 

[johnny2007]

If the units were waaaaay off level maybe the worktop would be wobbly.

 

[alphagario]

They were dead on level.

I'm maybe expecting too much? It's an island, so imagine the ends and the sides are what 21mm MDF side panels. It's siliconed all around the perimeter. It's also resting/supported on "internal" 21mm edge pieces in the centre but not glued. If you thump it in the middle, you'd hear a slight flex and knock as it bounces off the internal edge pieces... I think that's what's happening. Id argue it should be silicon / glue at every support point and that would avoid this. Got em coming back early next week so will report back what they say, but I'm looking for opinions in meantime.

 

[johnny2007]

It shouldn't wobble or flex in any way.

 

[foxhole]

Squirt some silicon in under top .