Hi all I really need advise before cold weather returns.
Had a 'builder' extend a single skinned brick shed to make a workshop/office for me. He used what i found to be thermolite block to extend the shed.
He then placed a plastic membrane on the inside wall, batonned it, plasterboarded it and plastered it. He was supposed to return and render the exterior but Ive not seen him since lockdown.
A couple of weeks later during winter, i saw pools of water on the floor around the edge of the room. It looks like condensation is occuring behind the plaster board and running down the cavity into the room.
my question is.
Will rendering increase the temperature of the wall enough to prevent the condensation?
Would tanking the external wall help.
Or, would creating an external cavity by battoning and shiplapping the external be a better alternative?
Really hope someone can help?
Had a 'builder' extend a single skinned brick shed to make a workshop/office for me. He used what i found to be thermolite block to extend the shed.
He then placed a plastic membrane on the inside wall, batonned it, plasterboarded it and plastered it. He was supposed to return and render the exterior but Ive not seen him since lockdown.
A couple of weeks later during winter, i saw pools of water on the floor around the edge of the room. It looks like condensation is occuring behind the plaster board and running down the cavity into the room.
my question is.
Will rendering increase the temperature of the wall enough to prevent the condensation?
Would tanking the external wall help.
Or, would creating an external cavity by battoning and shiplapping the external be a better alternative?
Really hope someone can help?