can i paint damp seal over weathershielded masonry/render

[ilm76]

The outside rendering between upstairs and downstairs windows had dulux weathershield paint on but is still slightly damp on interior after heavy rain. Especially this last week. Can I paint Johnsons damp seal onto this paint?
I have filled some hairline cracks in too, but wanted to see if damp seal would help too.
Thanks

ILM [/b][/i]

 

[joe-90]

No. Better working at getting the Weathershield to operate properly.

 

[gasbanni]

Sounds like you have solid walls ... Yes ?

What happens is that moisture is drawn in by capillary action through microscopic cracks and cannot evaporate through the impervious render and so works its way through to the inside wall.

With a cavity wall you wouldnt notice but a solid wall its the luck of the draw wether it happens or not.

Masonary paint is no guarantee in stopping the aforementioned problem
its impervious as well.

Depending how bad the damp is determines really how you wish to prevent the moisture ingress.

 

[ilm76]

As the dulux weathershield is on I presume I have no other options but to continue with this paint unless I have it re-rendered?