Plastering on painted brickwork

[Tommytippy]

Hi all

Have a victorian property. The predecessor painted the brickwork. I want to render over the top.

I understand you can score it with a grinder

Or

Fix metal mesh to the wall then sand and cement

Or

Is there another method with fibre mesh and say a K-REND system that will go straight on?

Any advice as to the best option would be greatly appreciated. My preferred option would be a coloured K-rend system so I don't need to repaint after.

Thanks

Tom

 

[flynnyman]

EWI?

 

[Vincey]

Sand blast it off

 

[casplas]

Scratch on, bed mesh then mechanical fix top coat as normal

 

[Marshy]

If the paint is sound and solid as it were. Parex do a product called Parinter that you can apply. One of the render guys like @Rigsby will know best

 

[Hampshire plastering]

Hi all

Have a victorian property. The predecessor painted the brickwork. I want to render over the top.

I understand you can score it with a grinder

Or

Fix metal mesh to the wall then sand and cement

Or

Is there another method with fibre mesh and say a K-REND system that will go straight on?

Any advice as to the best option would be greatly appreciated. My preferred option would be a coloured K-rend system so I don't need to repaint after.

Thanks

Tom

K-rend hpx base coat, full fibre mesh & silicone k1 top coat.

 

[Marshy]

K rend is f**k**g shite

 

[duke163]

Just been to look at two big bay windows that have been added to an old post office. Builder tells me the client wants k rend like the house opposite which is clearly sand and cement probably done 40 + years ago

 

[Hampshire plastering]

K rend is f**k**g shite

K rend is a great product.....
All down to application

 

[Marshy]

K rend is a great product.....
All down to application

No its not and fed up of other renderer complaining over the hairline cracks etc
I stick with parex thankyou

 

[Hampshire plastering]

No its not and fed up of other renderer complaining over the hairline cracks etc
I stick with parex thankyou

???? Hairline cracks?? Not sure what your on about fella... you stick to parex !!
K- rend if applicated correctly is a great product.

 

[Rigsby]

Several options available. Parex do parinter but the paint needs to be clean and sound.

Or angle grind / sand blast it off and use a bonding agent or sticky base render.

Fix expanded metal lathing although I would still use a bonding agent under it. The sort you put on and let dry. Otherwise all you have got is a render carrier. Risk of cracking.

 

[craigEEE]

K-rend hpx base coat, full fibre mesh & silicone k1 top coat.

No mechanical fixing?

 

[Hampshire plastering]

No mechanical fixing?

No.... why would you?
Hpx is is fine for painted walls.

 

[craigEEE]

Have spoke to K-rend many times and the only time they have said go over paint their spec was plugging the mesh, saying that though we get told a different thing every time we call them depending on who we speak to

 

[Hampshire plastering]

Yeh they do say different things all the time.... never been told to plug the mesh. Maybe next time?
Different areas get different calculations from them.

 

[Orangemachineman]

Personally I would use parex parinter.prime then a texture finish
Done a few now and it's a good system
Make sure the paint is sound mind


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[RetroPort]

Remove the paint, R7 Acrylic and Hp12 when the primers wet and poly mesh if it needs it.