I'm planning to decorate the lounge but have noticed some marks on the wall.
After consulting with a neighbour we have come to the conclusion that these marks are from how the plasterboard was attached when the house was built (some 20 years ago) using the dot and dab method.
I guess my first question is, what has caused these marks to come through and should I worry about it? If the answer is "No", am I ok to just paint the wall as normal or should I seal the wall first by applying something like a PVA sealant.
Incidentally this hasn't happened on all the outside walls, just the downstairs lounge one.
Thanks.
After consulting with a neighbour we have come to the conclusion that these marks are from how the plasterboard was attached when the house was built (some 20 years ago) using the dot and dab method.
I guess my first question is, what has caused these marks to come through and should I worry about it? If the answer is "No", am I ok to just paint the wall as normal or should I seal the wall first by applying something like a PVA sealant.
Incidentally this hasn't happened on all the outside walls, just the downstairs lounge one.
Thanks.