How do I solve moisture issues in old brick walls?
how to solve moisture in old brick walls that are covered with knauf boards. the humidity rises to 10-15 cm from the floor 6 months after the walls are laid. before that there were ceramic tiles and below them about 5 cm thick and no moisture was coming out.
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Hi Nike, Where are these walls, are they double walls with a damp course or are they an old cold conservatory or an outside toilet? They should have used a bitumen lining at least, if not built up an inner wall and used insulation. .............
Hello again Nike,
Sadly No easy quick way to do it! Call or an Architect and have a proper Survey done or a Building Surveyor. It probably needs to be taken right back to the brickwork otherwise the problem will be on going! Sorry I can't give you that quick fix! Good luck and best wishes.....
Hello again Nike,
Have you called them back in again to right the problem. I think because your home is so old you are have solid wall without a damproof course. It is go back to the bricks. Best regards..........Ask the original people to bring their damp meter with them to give technical proof of what is obvious.........
Hello again Nike,
Is this damp problem only in the Bathroom? If it is then it might be lack of enough ventilation, too much moisture or hot air building up in a closed room.
You must have Ventilation via Extractor Fan and or Window, otherwise condensation will run down windows and walls and land on floor and cause rising damp If that is your problem then put in a good extractor fan and open the window to let steam out! If the problem is not solved it can only get worse........
Hello again Nike,
Before you go doing anything to drastic, can I ask if the Knauf walls have had anything put on top of them Knauf boards are a form of Plasterboard and should not be left unfinished. If you haven't done so, you ought to cover the walls with ceramic tiles on a waterproof adhesive and grout or Plexi glass sealed with waterproof sealer. Yes you will still need to have good ventilation. Do get a Qualified Building Surveyor to take a look at the room and give his recommendations and advice as to how you should proceed. You need someone qualified on the spot to advise you. I feel I can't help further as I live in the UK.
Very best wishes, I hope the problem is resolved soon.........
You can replace them that might help
In the States we have a proven
masonry sealer called Red Guard. I’m sure there’s something similar in Croatia.
The above-noted suggestions point to a common thread:
determine where the moisture is coming from, stop the source, dry it out (might need to treat it for mold too) and then replace the Knauff Boards (as mold can grow in them).
Not a good time of year to be doing this. Good luck.