K Rend Damp stain

L

LosLynch

New Member
Hi Everyone,

I have a query with regards to my new build house. K rend was applied in May 2024. In October we noticed staining appearing after rain in areas where cement board lay underneath. Our plasterer came in December to view the problem and has said he has never seen it before and regularly deals with k rend. He thinks it may be caused by contaminants in the plaster board seeping into the render when damp. The only time stains are not visible is when we have had heavy rain. They are getting progressively worse and unfortunately are only at the front of the house so it’s very visible and an eyesore. Can anyone advise on how best to deal with the problem apart from removing the cement board underneath! Hope for dry weather in the summer and apply sealant? Paint it? Thanks very much
 

Attachments

  • K Rend Damp stain
    IMG_0031.jpeg
    166.4 KB · Views: 15
  • K Rend Damp stain
    IMG_0030.jpeg
    134 KB · Views: 15
  • K Rend Damp stain
    IMG_0029.jpeg
    35.3 KB · Views: 15
Last edited by a moderator:
LosLynch said:
Hi Everyone,

I have a query with regards to my new build house. K rend was applied in May 2023. In October we noticed staining appearing after rain in areas where cement board lay underneath. Our plasterer came in December to view the problem and has said he has never seen it before and regularly deals with k rend. He thinks it may be caused by contaminants in the plaster board seeping into the render when damp. The only time stains are not visible is when we have had heavy rain. They are getting progressively worse and unfortunately are only at the front of the house so it’s very visible and an eyesore. Can anyone advise on how best to deal with the problem apart from removing the cement board underneath! Hope for dry weather in the summer and apply sealant? Paint it? Thanks very much
Click to expand...





Are there steels (rsj's or catnic beans) behind where the patches are?
 
LosLynch said:
Hi Everyone,

I have a query with regards to my new build house. K rend was applied in May 2023. In October we noticed staining appearing after rain in areas where cement board lay underneath. Our plasterer came in December to view the problem and has said he has never seen it before and regularly deals with k rend. He thinks it may be caused by contaminants in the plaster board seeping into the render when damp. The only time stains are not visible is when we have had heavy rain. They are getting progressively worse and unfortunately are only at the front of the house so it’s very visible and an eyesore. Can anyone advise on how best to deal with the problem apart from removing the cement board underneath! Hope for dry weather in the summer and apply sealant? Paint it? Thanks very much
Click to expand...
Apologies! K rend was applied in May 2024 so marks appeared within 5 months of application
 
You must log in or register to reply here.
Back
Top