Plastering Question

[prand]

I was removing the wallpaper in a room in preparation for all the walls being skimmed by a plasterer (victorian house).

In rather spectaular fashion, I also removed an eight foot long panel of chipboard which the radiator which a previous owner had used to mount it under the window (and I assume to cover up some crumbling plasterwork - there are similar bodges around this house), which in the process pulled off 2 inches of mortar right down to the brickwork, filling the room with dust and rubble.

Does anyone know how would a plasterer sort this out? I assume the best option would be a combination of mortar/plasterboard and then skim on top. Would this then be ok to remount the radiator?

[-C-]

I can't quite work out what you have done, but it sounds like you have stripped a section of wall back to the bare brick?

If its plaster all round it, I would have thought it would be a bonding coat to bulk it back out, then a finishing coat on top to level it off.

[Deva Link]

Presumeably the house has solid walls? Is there any evidence of damp?

Ideally this should be done properly with lime plaster (which breathes) or with plasterboard on battens.

[FlossyThePig]

Deva Link said:

Ideally this should be done properly with lime plaster (which breathes).

Not necessary unless the building is listed inside (not just outside). Spoken to specialists in the field who advised against unless a listed requirement. External pointing is totally different though.

[prand]

-C- said:

I can't quite work out what you have done, but it sounds like you have stripped a section of wall back to the bare brick?

If its plaster all round it, I would have thought it would be a bonding coat to bulk it back out, then a finishing coat on top to level it off.

Yes I've done exactly that - The board was fixed to the wall running along under the windowsill with carriage bolts and screws and even a few floorboard nails. I had removed most of them, when I levered the board off the wall, the odd nail & screw pulled the mortar with it. As far as I can tell, there is no damp, and there is plaster around, bordered at the lower point by the level of the skirting.

I'l tell my plasterer to bring some more materials when he comes this time, this was supposed to just be a simple skim job.

[VxDuncan]

Might take a return trip I'm afraid. He should float it out, which can then be skimmed (best way), or could board it out to save time money. If it's an external wall you might consider removing all the old plaster back to the brick, and boarding out with insulated plasterboard to make the room nice and cosy. Nasty, dusty job though. I would however be slightly concerned about the crumbling area of plaster - is it crumbling anywhere else?