Hardwalling

[Raybuild]

I am rendering and then plastering onto exposed brickwork in a 1910 end of terrace SOLID WALL property.
Damp course is perfect.

I have been told NOT to use Hardwall as it will absorb dampness from outside (as no cavity) and months later in winter mildew will appear. Is this information correct?
If this is so, would it at least be safe on internal / party walls ?

Advised I should stick to traditional 5:1:1 two coat rendering mix followed by plaster

Advice / comments please

 

[Raybuild]

Re the above query - I am talking about INTERNAL render / plastering.
Advice / comments please

 

[noseall]

we would tend to skim straight onto the render with a renovating finish.

 

[Raybuild]

Yes, but my question is if I use Hardwall as the render base coat , will it cause damp in the future, as it is going onto a solid wall and not cavity, in an old property. Ive been told it will encourage absorption of moisture through the bricks from the outside. The bricks are sound.

 

[onion]

Yes, but my question is if I use Hardwall as the render base coat , will it cause damp in the future, as it is going onto a solid wall and not cavity, in an old property. Ive been told it will encourage absorption of moisture through the bricks from the outside. The bricks are sound.

personally i would do it in plastering sand and cement at 5 sand to one cement and a good intragal waterproffer i hope this helps

 

[onion]

Yes, but my question is if I use Hardwall as the render base coat , will it cause damp in the future, as it is going onto a solid wall and not cavity, in an old property. Ive been told it will encourage absorption of moisture through the bricks from the outside. The bricks are sound.

personally i would do it in plastering sand and cement at 5 sand to one cement and a good intragal waterproffer i hope this helps

sorry waterproofer