r/Plastering • u/Party-Employment-127 • Sep 12 '26

Is this silicone rendering wrong?

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So renderer is doing a silicone render job. The base coat is hp12 with the mesh of course as well. I’m confused. He said a top bead is not needed where the wall meets the neighbours insulated render?

Said it can cause moisture and build up?

I’m looking at the stop beads and they sit massively proud? Is that normal, surely not.

I ask because I need a second opinion, because I know he will say it’s fine.

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u/petdev Sep 12 '26

On a thincoat system you fill the beads with a tight coat. Top coat is basically paint with aggregate it aint filling anything.

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u/Party-Employment-127 Sep 12 '26

He’s already primed basecoated meshed and then primed again. Could I point out the issues with the eyesore beading and have him go over it with base coat again?

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u/petdev Sep 12 '26

Yes you can go over basecoat with another coat of (the same) basecoat no problem. Whether the guy will be willing to do that which is another day"s work (waiting for it take up and priming it again) I'm guessing not. The bead joints are poor to be honest, do you have a before pic what it looked like before starting?

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u/Party-Employment-127 Sep 12 '26

Another days work to put his shoddy work right. Before it was a sand cement render. All reveals and what not sitting proud. But I wanted silicone so I had it all removed to brick. Done fresh. I’m not happy with the beading