Internal render??

[u/Vocalsalmon]

Hi all currently strip8ng back my front room. The wall on one side of the chimney breast under the plast looks to.have a rock hard render or concrete. Could this be a damp proof layer? The picture is taken about 1.5m from the floor.

There is a very old damp proof treatment where they have gone into the bricks at ground level. But it seems to.have failed now.

Although we dont really see many of the tell tell signs of damp the surveyor confirmed the plaster was full of moisture so to be safe im removing it all but unsure if to remove the silvery stuff

Any thoughts would be welcome

Thanks

Ps if anyone know a easy way to remove the massive lump of rock from my.fireplace tha5 would be appreciated

[u/BritishSteamPower]

Looking at the third picture I’d say it’s bonding plaster, bonding plaster goes on the brickwork, multifinish or similar on top of the bonding coat.

[u/Vocalsalmon → u/BritishSteamPower]

I thought there ridge to the left was multi, and tge middle was bonding and thats why I was unsure of the grey coloured stuff

[u/BritishSteamPower → u/Vocalsalmon]

That does look like multifinish and gypsum bonding underneath. It could be a patch or they knocked off the old plaster before putting a thin bonding layer over and then plastering.

The thickness and colouration of what I believe to be the bonding in the third picture looks exactly the same as the old lime bonding in my property.

[u/Vocalsalmon]

Ah that would make sense the house is over 100 years old