Louis De Courcey
As long as the roof and chimney removal has been done correctly , then there is probably a breakdown in the exterior brickwork and mortar allowing water to penetrate through the exterior wall.
Damp patch on bedroom wall
Posted by Margaret Greenwood, on
I have had the roof re-tiled and chimney removed and still getting damp patch on bedroom wall, what could be the cause ?
Chris Plastow
This condition is called ammonium sulphate contamination . It has nothing to do with rain or roofing . It is hygroscopic salts in the wall where the chimney was . It is very easy to fix but messy ! The damp area or the whole area where the chimney was should be stripped back to the brickwork + 500mm to each side . The stripped wall area is to be waterproof rendered with Sika-1 and Leighton buzzard sand (Travis Perkins) . This will cure the problem , it's common as is the lack of knowlageble about this condition .
jason reagan
If its the outside wall it could be coming through the brickwork . What condition are the mortar joints in ?
Andrew John Wheaton
Check your loft insulation. Make sure it's over the problem area.
Chris Ocego
Hi If you have had your roof replaced with new they have done something wrong so if possible get them back as a new roof should not leak and should be fully guaranteed. Chris
Sergejs Leonovs
Hi Margaret If you have to repair the roof was a wet section of the wall (not the side wall of the house , if I understand correctly ), then it will be renovated for a while - a few months now because the wet season. You have repaired the roof, stop flow of water flows , as previously water from your roof throughout the inner portion of your wall , and took a sponge soaked your entire wall with moisture. So on top of moisture is not, on the part of your bedroom redecorating done , everything is beautiful, and the moisture inside the walls remained , and the new spot of dampness may appear in any other place. You can do minor repairs but it will not solve the problem, I think a waste of your money for repairs. Of course , there are some solutions to this problem , but the process is time-consuming and expensive. All can be repaired , ready to pay for it ... Respect Sergejs
samad omry
it looks like a luck of ventilation
