How to cover up this…

[CotswoldDoItUpper]

Hi all!

 

Previous owners had this black paint stuff

done to the inside of the conservatory dawaf wall. It was covered in 3mm wood of some sort. There was an enormous ants nest in the cavity which is no more. Guess this was some sort of anti-damp paint because the ants nest was allowing moisture between the two skins (?).

 So the question is:

 

leave or remove.

 

if leave, how to paint over? Lining paper? 3mm ply? 

 

if remove, how to remove? A pallet knife doesn’t work. Sander? 
 

thanks!

 

 

[CotswoldDoItUpper]

Here is a close up pic..

[Ferdinand]

If it only has 3mm of insulation I would take it all off and do it properly.

[CotswoldDoItUpper]

11 minutes ago, Ferdinand said:

If it only has 3mm of insulation I would take it all off and do it properly.

It looks like paint over plaster. Will be adding insulation to the cavity.

[Temp]

Is it some kind of bitumen based flooring adhesive they used to stick the wood to the wall?

 

I reckon plasterboard and skim over it. Not sure what to fix the plasterboard to the wall with though.

Edited August 30, 2021 by Temp

[tonyshouse]

Think about U-value of the wall - then decide 

[CotswoldDoItUpper]

2 hours ago, tonyshouse said:

Think about U-value of the wall - then decide 

the glazing above is 9mm double glazing with 3 out of 12 panes blown. I don’t think the u-value of this 40cm high wall will have a huge impact on the temperature in this space!! 
 

We will eventually get around to changing the glazing, but just need a cheep quick fix to make the room decent to live in. 

[CotswoldDoItUpper]

8 hours ago, Temp said:

Is it some kind of bitumen based flooring adhesive they used to stick the wood to the wall?

 

I reckon plasterboard and skim over it. Not sure what to fix the plasterboard to the wall with though.

the wood was nailed to the wall! Think plasterboard will be the way forwards. 

[ProDave]

Plasterbpoard dot and dabbed as tight as you can get it.

 

I see you are fitting UFH in there.  How much insulation is under it?

[CotswoldDoItUpper]

On 30/08/2021 at 10:30, ProDave said:

Plasterbpoard dot and dabbed as tight as you can get it.

 

I see you are fitting UFH in there.  How much insulation is under it?

think this is the plan thanks! 
 

there is 100mm PIR between the joists. Couldn’t get any more because the joists are only 50mm of the underfloor. Then 20mm over the chipboard with the pipes in it. So total of 120mm. Would have liked more, but consistent floor levels, head heights etc all limited to 100mm. 
 

p.s. and 75mm in the roof between the joists. 

Edited August 31, 2021 by CotswoldDoItUpper