Ive had a plasterer in 6 weeks ago to render and multi finish the walls in my house.
I had rising damp so he removed a meter of old plaster and render back to the brick. I injected the walls with dryzone cream.
The plasterer put on 1 coats of render with renderguard gold waterproofer added into the mix and another coat of render on top without waterproofer then skimmed with multi finish.
All seemed well until yesterday i noticed patches of plaster is coming away from one wall and sound hollow when you tap on it, if you push on the plaster with your hand it crumbles and breaks. Its like its not bonded to the render.
He pva the wall where the old plaster meets the new plaster.
The only thing i noticed was that he didnt scratch any of the render as ive seen others plasterer do it in the past, i did questioned him about scratching the render and he told me it will be fine and wouldn't be a problem. He also didnt scratch the first coat of render either but the render feels solid and doesn't sound hollow, its just the plaster coming away from the render. The other walls wasnt scratched too and seem fine so far.
Total area thats loose is around 1 square meter
There isnt sign of any damp now and seems dry.
Can anyone help and is the reason the plaster is coming away because he didn't scratch the render. The render feels smooth behind the bit of plaster thats falling off. What can be done now to correct it as the render its dry to scratch?
Thanks
I had rising damp so he removed a meter of old plaster and render back to the brick. I injected the walls with dryzone cream.
The plasterer put on 1 coats of render with renderguard gold waterproofer added into the mix and another coat of render on top without waterproofer then skimmed with multi finish.
All seemed well until yesterday i noticed patches of plaster is coming away from one wall and sound hollow when you tap on it, if you push on the plaster with your hand it crumbles and breaks. Its like its not bonded to the render.
He pva the wall where the old plaster meets the new plaster.
The only thing i noticed was that he didnt scratch any of the render as ive seen others plasterer do it in the past, i did questioned him about scratching the render and he told me it will be fine and wouldn't be a problem. He also didnt scratch the first coat of render either but the render feels solid and doesn't sound hollow, its just the plaster coming away from the render. The other walls wasnt scratched too and seem fine so far.
Total area thats loose is around 1 square meter
There isnt sign of any damp now and seems dry.
Can anyone help and is the reason the plaster is coming away because he didn't scratch the render. The render feels smooth behind the bit of plaster thats falling off. What can be done now to correct it as the render its dry to scratch?
Thanks