Lime plaster 'repair'

[Fragonard]

Hi again,

The house I'm renovating is a Victorian era house which has been lime plastered throughout. There are a couple of walls which have been stripped back to the red bricks since the plaster had been covered in layers of paper and seemed to have blown in many places. Not sure if I was correct to strip these walls but that's how it is now.

I've stripped the wall-paper from all the walls now and some of it appears to have been painted while other areas not.

There are a coupe of walls in the house which at some point in the past have been plastered using pink gypsum. This must be fairly recent.

I would like to know what I could use to skim the original lime plastered walls and also the more recently pink gypsum plastered walls? I've been advised to dry-wall the walls which have been stripped back to the red brick.

PS In a couple of areas where lath an plaster have been used, there are cracks in the plaster. What would be the best stuff to use to repair these cracks?

Thank you.

 

[cooptaza]

Pictures always help

 

[carlos]

Control the suction, then multi finish the lot. Scrim tape an cracks and ceiling/wall joints.

Sand and cement to patch the bricks up.

 

[seanlar]

Hi again,

The house I'm renovating is a Victorian era house which has been lime plastered throughout. There are a couple of walls which have been stripped back to the red bricks since the plaster had been covered in layers of paper and seemed to have blown in many places. Not sure if I was correct to strip these walls but that's how it is now.

I've stripped the wall-paper from all the walls now and some of it appears to have been painted while other areas not.

There are a coupe of walls in the house which at some point in the past have been plastered using pink gypsum. This must be fairly recent.

I would like to know what I could use to skim the original lime plastered walls and also the more recently pink gypsum plastered walls? I've been advised to dry-wall the walls which have been stripped back to the red brick.

PS In a couple of areas where lath an plaster have been used, there are cracks in the plaster. What would be the best stuff to use to repair these cracks?

Thank you.

do it in lime plaster if you don't mind the cost always works

 

[Fragonard]

I would like to do it in Lime Plaster but the cost is putting me off. I was given a rough figure of £30 per sq m. I've already over budget.

I have read that Universal One Coat is an option that I could use to finnish the lot. Anybody have opinions on this? Thanks for the replies.

 

[Fragonard]

I was told you can't use gypsum to finnish over lime plaster because live will expand and contract but gypsum won't. That's why I think I was suggested Universal One Coat which is apparently a compromise between gypsum and LIme.

 

[Fragonard]

Any opinions of the Universal One Coat.....please?

 

[Simon73]

I've used one coat on lime loads of times, just make sure you don't leave the lime to long before you skim it, slightly dampening the surface will help

 

[powellplastering]

You can get one coat to match lime pretty well, we use it all the time to replicate the finish you get with lime on newly boarded walls, the heritage inspector couldn't tell the difference!

 

[Simon73]

That's because most inspectors don't know their ass from their elbow

 

[3kids1dog]

You can over skim with lime skim. Prime the walls with dg27 first let it dry (24hrs) then straight on with lime skim . I make my own 1:1 NHL 2 / moist silica sand and fibres . Bang it on , let it take in then water and sponge float to work the fat up , then dry trowel the fat in . Leave it while next day then water and a hard trowel to a good finish

 

[Fragonard]

The lime plaster has been up for decades but was wall-papered over. Some of it has some thin layer of paint on too. Can I use the one coat over these? Also, there's a couple of walls with pink gypsum from a later period. I want to put one coat over this too in order to have a uniform look.

 

[DTB]

I've just posted a similar thread on what I did. But basically I would say lime it if you can, cement/gypsum based stuff will only cause problems over time. The problem with lime is it takes forever to go off and it's difficult to get as smooth as gypsum. Also, patching lime is tricky to smooth the edges, so once we had patched it all we covered it with a high GSM breathable paper from a German manufacturer. To be honest it was all a bit of a faff. If I did it again I'd wait until spring/summer, take off all of the old stuff and re-lime it. If not, stud it out and used foilback boards and multi-finish? I did that in my dining room and it looks top notch (for now).....