Plastering/rendering 1890s house internal walls.

Z

Zireael

New Member
Hey All,

Just after a bit of advice if possible.

I've recently bought my first house and the plaster in all downstairs walls was completely blown and has been stripped back to brick.

I've been given a lot of differing quotes and opinions by a number of different plasterers and I was hoping someone could tell me what's right and wrong.

The house has an old slate dpc, the walls were originally rendered 1m from the floor level which I'm told is because of the dpc.

I've been told on a few occasions that the walls will not need to be rendered to this point again and instead a gypsum bonding coat should be enough.

Also had people tell me to just sand and cement plaster the walls entirely, despite the house having lime mortar.

What would be the correct process of doing this?

I'm way out of my depth so any help would be appreciated.

Thanks in advance
 
raytheplasterer said:
render should always be softer/weaker than the mortar. bricks might be quite soft aswell ?

don't use bonding.
Click to expand...
Yeah the bricks are quite soft, already had problems with the electricians trying to screw new sockets and switches into the walls as the bricks were crumbling.

So in this instance, would rendering it with sand and cement be the right way to do it?
 
Solid wall construction is better with lime render. You can still use a modern glass fibre reinforcing mesh in the scratch coat
 
I don't see any reason why you couldn't use thistle hardwall to plaster the walls, as long as the bricks are not sealed, just wash/splash down of dust before plastering.

the walls should not be sealed with PVA glue before plastering.
 
As your properties Damp corse has already broken down ,this was the reason of the sand and cement with an additive was applied.
I would float and set the walls in Tarmac Limelite Renovation plaster. with a Tarmac high impact finish plaster.
 
Plastering/rendering 1890s house internal walls.
 
Thanks for all of your help.

We're either getting people round pushing plasterboarding despite wanting the walls floated, or people willing to quote for the job we want giving wildly different advice.

Would there be an alternative to lime in this case?

No issues with using lime, but we need substantial work to the entirety of the house, outside of just plastering, and unfortunately my pockets only run so deep.

Cheers
 
Zireael said:
Thanks for all of your help.

We're either getting people round pushing plasterboarding despite wanting the walls floated, or people willing to quote for the job we want giving wildly different advice.

Would there be an alternative to lime in this case?

No issues with using lime, but we need substantial work to the entirety of the house, outside of just plastering, and unfortunately my pockets only run so deep.

Cheers
Click to expand...


would you say the house suffering from dampness? does it smell a bit musty?

have you checked your slate dpc? is it actually damaged? any green mouldy bricks?
 
I’d be thinking of insulating the external walls unless you want to be a complete purist. Makes a massive difference to these types of houses.
 
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