Hi everybody,
Ive been a member of this forum for about a year now and read it regularly in an attempt to pick up tips and find answers to any problems I come across. Im very much a DIY plasterer. I did a four day course last year as I bought a house that needed every room doing. Since then Ive done most of the house, rendered a few walls in the garden (with weber) and done a few favours for mates. Im still learning as I go but Im getting better and none of the walls have bugged me with obvious imperfections when painted. Im a bit long in the tooth now to start thinking about a career in the trade but I do love plastering and look for any opportunity to do some.
This is my first post as I am more of a reader but couldnt find any answers to my problem so hopefully someone can help.
Ive just had a wall knocked out in the kitchen and have boarded and plastered half the room. While in the process of doing so I move the fridge, under sink base unit etc. Both are on an external wall beneath a work surface and window above. On moving them I noticed white powdery staining on the plaster. It was obviously damp and the plaster crumbled when touched. Im pretty sure the cause is a poor seal around the back door, which will be sorted with mastic. The badly affected area is directly next to that door. I need to know how best to fix. Ive taken off the damp plaster to a point where it no longer crumbles or shows signs of damp.
How far up do I need to go with the plaster removal? I read somewhere that you should go 1m higher than the highest damp spot? That would take it into a tiled area above the work top.
The depth of the plaster is over an inch thick, how do i best build up the thickness on the area thats now back to brick? Its made more tricky (for me anyway) because the wall comes in twice from the door. Ive considered double boarding and skim or bond the wall? should i be adding anything to avert any more damp problems?
Photo below in case any of that wasnt clear.
Thanks in advance for any help
Paul
Ive been a member of this forum for about a year now and read it regularly in an attempt to pick up tips and find answers to any problems I come across. Im very much a DIY plasterer. I did a four day course last year as I bought a house that needed every room doing. Since then Ive done most of the house, rendered a few walls in the garden (with weber) and done a few favours for mates. Im still learning as I go but Im getting better and none of the walls have bugged me with obvious imperfections when painted. Im a bit long in the tooth now to start thinking about a career in the trade but I do love plastering and look for any opportunity to do some.
This is my first post as I am more of a reader but couldnt find any answers to my problem so hopefully someone can help.
Ive just had a wall knocked out in the kitchen and have boarded and plastered half the room. While in the process of doing so I move the fridge, under sink base unit etc. Both are on an external wall beneath a work surface and window above. On moving them I noticed white powdery staining on the plaster. It was obviously damp and the plaster crumbled when touched. Im pretty sure the cause is a poor seal around the back door, which will be sorted with mastic. The badly affected area is directly next to that door. I need to know how best to fix. Ive taken off the damp plaster to a point where it no longer crumbles or shows signs of damp.
How far up do I need to go with the plaster removal? I read somewhere that you should go 1m higher than the highest damp spot? That would take it into a tiled area above the work top.
The depth of the plaster is over an inch thick, how do i best build up the thickness on the area thats now back to brick? Its made more tricky (for me anyway) because the wall comes in twice from the door. Ive considered double boarding and skim or bond the wall? should i be adding anything to avert any more damp problems?
Photo below in case any of that wasnt clear.
Thanks in advance for any help
Paul
The right people will be along to help soon 