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Barry79
Junior Member
Joined: 15 Aug 2008
Posts: 2
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 Posted: Fri Aug 15, 2008 10:55 pm Post subject: Preparing a wall for plastering |
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Hi,
I recently bought an apartment in Stockholm and I need to renovate the living room. I've managed to peel away 6 layers of wallpaper to be left with an unplastered wall underneath. This wall is concrete, built in the 40's, and certainly not of the reinforced variety. If I rub the wall with my hand, sand comes off onto it. The wall has also crumbled a little in one part -
http://www.flickr.com/photos/26691832@N06/
Plus there is a number of marks from the wallpaper stripping tool and the various nails that were hammered into the wall over the years. It's possible also that the wall was painted with white paint before it was ever wallpapered.
I'm hiring a plasterer to plaster the walls the way we do back home, but I'd like to know what I can do first. Should I remove every little piece of wallpaper? I hope I can leave the paint a it might contain lead.
How would I need to repair the wall before it can be plastered? How might I go about doing this?
I also need to fill an old door entrance with plasterboard in the room. Again you can see this in the pictures. How far out with respect to the concrete wall should I bring the plasterboard. In other words, should the plasterboard be flush with the concrete walls around it, or should it come out a little more since you normally dont apply as much plaster to plasterboard as you do with a wall.
Thanks very much for your help,
Barry. |
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FreeD
Junior Member
Joined: 27 Apr 2008
Posts: 12
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| Posted: Sat Aug 16, 2008 10:10 am Post subject: |
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Hi Barry
I've had a look at your photos looks like a fairly straight forward job. Firstly you should remove as much wallpaper as possible, leaving it on the wall could cause problems for the plasterer and plaster keying to surface.
U sure the surface is concrete? not sand and cement?
Anyway i'd board up the old entrance use 9.5mm plasterboard bring it flush with the surface. Use drywall screws and sink them 1mm into the surface of plasterboard.
Fill any big gaps etc with bonding plaster (leave scrapes etc up to 3mm deep). U will need a bucket, gauging trowell + plasterers trowell for this.
Then all walls will require 2 coats PVA one the night before ratio 5 parts PVA to 1 water then just before plastering 3:1. |
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Barry79
Junior Member
Joined: 15 Aug 2008
Posts: 2
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| Posted: Sat Aug 16, 2008 10:58 am Post subject: |
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Cheers FreeD for the very helpful post,
You right, the wall is sand and cement.
Thanks again,
Barry. |
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