Plastering query

Cainy18

Cainy18

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Hi all.

I am trying to DIY an 1850s mill cottage. I was hoping to skim the walls in my living room with some Knauf pro roll max as they have been poorly looked after and need a clean surface. When preparing everything, I noticed 3 large bubbles in the plaster and when pressing them they crumbled. I'm now left with this (see image). It looks like the render behind is slightly damp but there are no signs of damp anywhere else and the pointing on the house it perfect. Any advice on how best to proceed with fixing the patches? I have no budget at all to get a plasterer so that isn't an option.
1000029527.jpg
 
Cainy18 said:
Hi all.

I am trying to DIY an 1850s mill cottage. I was hoping to skim the walls in my living room with some Knauf pro roll max as they have been poorly looked after and need a clean surface. When preparing everything, I noticed 3 large bubbles in the plaster and when pressing them they crumbled. I'm now left with this (see image). It looks like the render behind is slightly damp but there are no signs of damp anywhere else and the pointing on the house it perfect. Any advice on how best to proceed with fixing the patches? I have no budget at all to get a plasterer so that isn't an option. View attachment 337789
Click to expand...
No budget and expecting a miracle solution?

Is it a solid wall?

A solid wall needs lime mortar. If there's cement, your wall won't breathe. It needs lime mortar inside and paint should be clay based.

Solid walls are never damp free, but moisture needs to breathe out, so lime mortar everywhere and breathable paint, clay based.

Deviate from that, then enjoy more damp
 
Not at all. I only moved in recently and am taking it one day at a time. It is a solid wall. Exterior about 2 ft thick. I expected to find lime plaster with the age of the house but have been surprised to find none.

I'm not responsible for any of the choices made previously in the house but am determined to do my best to fix it.

Despite your somewhat snippy tone, thanks for taking the time to reply, even if it appears you did so in order to feel somewhat superior. I'll start looking into lime plaster and sorting the rendering.
 
Do some research before you proceed.
Limelite renovating plaster might be what is required
 
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