little miss
New Member
Hi everyone, your advice is desperately needed, please.
We live in a Victorian terrace that has lots of damp issues in various rooms. We commissioned a survey from an independent damp surveyor who recommended lime plaster. We selected some builders who are damp specialists. They are members of the Property Care Association and the Federation of Master Builders so we are hoping this will help us if there is an issue.
The pantry was stripped down to brick work then a backing plaster/PVA and a skim were used. Prior to starting the work informed them we were advised to use Lime/breathable plaster. We have seem a couple of lime plaster bags and lots of multi-surface plaster and some gypsum bags in the house.
The skim coat was added two weeks ago and we are noting that the finish is not as smooth as other plaster we have had done. Its blotchy and a little rough so I have gently sanded it using 320 grit sand paper. Attached are photos of the finish. Pictures 1 and 2 show the blotchy walls and picture 3 is of the left hand wall and seems to be ok.
Can you help us to identify why the plaster is blotchy?
Do you think they have mixed gypsum with lime plaster?
Is this ok to do?
What would be the issues if they have?
Many thanks,
We live in a Victorian terrace that has lots of damp issues in various rooms. We commissioned a survey from an independent damp surveyor who recommended lime plaster. We selected some builders who are damp specialists. They are members of the Property Care Association and the Federation of Master Builders so we are hoping this will help us if there is an issue.
The pantry was stripped down to brick work then a backing plaster/PVA and a skim were used. Prior to starting the work informed them we were advised to use Lime/breathable plaster. We have seem a couple of lime plaster bags and lots of multi-surface plaster and some gypsum bags in the house.
The skim coat was added two weeks ago and we are noting that the finish is not as smooth as other plaster we have had done. Its blotchy and a little rough so I have gently sanded it using 320 grit sand paper. Attached are photos of the finish. Pictures 1 and 2 show the blotchy walls and picture 3 is of the left hand wall and seems to be ok.
Can you help us to identify why the plaster is blotchy?
Do you think they have mixed gypsum with lime plaster?
Is this ok to do?
What would be the issues if they have?
Many thanks,