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damp

Structural dampness is the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or condensation from within the structure.
A high proportion of damp problems in buildings are caused by ambient climate dependent factors of condensation and rain penetration. Capillary penetration of fluid from the ground up through concrete or masonry is known as "rising damp" and is governed by the shape and porosity of the construction materials through which this evaporation limited capillary penetration takes place. Structural damp, regardless of the mechanisms through which it takes place, is exacerbated by higher levels of humidity.

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  1. U

    Damp patches on quarry tiled floor

    I have just lifted up the laminate floor in my kitchen to reveal the quarry tiled floor. But I have noticed that there are damp patches. The plan is to tile on top but I was wondering if you could recomend any sealants to paint onto the existing quarry tiles.
  2. K

    Damp Spots Coming Through Screed - What to do?

    Hi all. I'm new to here but have picked up some good information from other threads but need a bit of specific advice. We purchased a house and are in the middle of refurbishing it. The kitchen was tiled previously and had tiles that were cracked and had lifted really high in places. I pulled...
  3. S

    potential damp concrete floor

    Hi Just about to embark on a new kitchen in my old house. The concrete floor is currently tiled with no obvious signs of damage. I would like to just take the existing tiles up and put new porcelain tiles down but two builders i have had in to quote for other work have expressed concern that...
  4. F

    Split level floor with no damp proofing - what to do?!

    Hi all, I could really use some help with preparing my kitchen floor for tiling. I have taken up the old floor: tiles on a 30mm screed, laid over what I was told was floorboards but is in fact a solid floor. Well, it is mostly solid. There are two holes, about half a metre square, where there...
  5. B

    Damp Proof Membrane Liquid

    hi i have a small problem the wall am tiling to is plastered thought the people have painted with this damp proof membrane liquid hears the link http://reviews.wickes.co.uk/9987-en_...17/reviews.htm can i sbr over that with bal sbr or will it have to be striped off?? Read more...
  6. H

    Damp from flat above - discoloured tiles

    Hi everyone, I am new to the forum and looking for some advice about damp and discolouration behind the tiling in my bathroom. I live in a block of flats and my neighbour above had a very bad leak leading to water leaking into my bathroom. It consisted of a drip and most of it ran into the...
  7. J

    Hi and Help with damp issues

    Hi I have just joined this forum and need help! I work as a plumber. I have a problem with a bathroom I installed just over a year ago. I was called back in because tiles around the bath in the shower zone were loose. I removed all 'moving' tiles and found the adhesive to be damp and water...
  8. Y

    Advise- Damp looking patches on new Limestone

    Hi All Tiller has just finished fitting 10mm honed limestone onto marmox boards. A 4hr dry white addy was used but 24hrs latter we can see damp looking patches. The addy is topps trade single part mix, it does say for stone on bag. below is a link to the stone used Classic Flax Mix Honed...
  9. A

    Damp Problem

    This isn't really a tiling issue but someone may be able to help...... I have just started a job in an old single storey extension which was converted into a bathroom some time ago, on removing the tiles most of the pb came with it and was sodden (even in the dry areas) which was worrying to...
  10. T

    Damp - then Plaster Skim Before or After Tiling

    Hi all. I'm re-fitting a downstairs toilet and utility room. When I pulled out the old concealed cistern, I could see that it has been leaking for some time (about 1 drip a second, so quite badly). The cement floor under the cistern was sopping wet, and moisture had soaked a good 12 inches up...
  11. E

    Tiling over Liquid Damp Proof Membrane?

    Hi I have just put a Liquid Damp Proof Membrane (A rubberised bitumen based emulsion that provides a flexible and resistant barrier from Wickes) over a concrete floor but now i'm not sure if I can tile over it. Has anyone had experience of this, can i do it?
  12. R

    Damp behind tiles in shower

    Hi Folks Wondering if you can help. Discovered several loose tiles first, second and third row up from shower tray and decided to whip them off the plasterboard wall. I then found that the plasterboard is damp and there appears to be areas of black thereon. Now, a google search suggests...
  13. J

    How to check for damp?

    Hi there, I had an 'escape of water' between my sink and toilet unit in the bathroom and am dealing with the insurance company. I fixed the leak myself. The loss adjuster came out and saw a pool of water on the tiles that was visible when you lift the lid above the cistern and said that this...
  14. G

    Tiling a damp concrete floor - best method with limited high available

    Hello everyone. Now, please bear with me as I may take some time to get my point across being a compete newcomer to DIY. I have also receive so much contradicting info from so called "tradesmen" it's unbelievable, so I would really appreciate the some advice on the following situation...
  15. A

    tiling onto damp concrete floor

    Our final job in a long renovation, is our kitchen - the concrete floor is damp and I am desparate to discover a way of tiling it without having to take up the concrete floor to lay damp proofing membrane unerneath a new layer of concrete... The concrete in the other downstairs room was only a...
  16. P

    Damp meters

    Can anyone suggest a meter that can test sand cement screeded floors and also anhydrated floors as well? Do they do one that will test both? if not are there two seperate ones that peeps can suggest that wont break the bank? what do you use for testing prior to tiling?
  17. C

    Help; damp getting behind tiles

    Hi all just found this forum while trying to sort out the problem I have with my bathroom tiles, so I'm hoping that someone can point me in the right direction. I have had my bathroom fully re-tiled with Atena Marble Gris tiles from Topps Tiles and then grouted in with swimming pool grout, all...
  18. J

    damp from shower getting through wall

    :mad2:Hi, we have a large shower on the ground floor which we renovated the base is concrete. We removed the old wall tiles and had the walls replastered and retiled, the floor tiles were put on top of the old tiles, trap is in the middle of the floor. A few months after it was completed we...
  19. P

    liquid damp proof membrane help please

    Hi guys and girls, i need to apply a liquid dpm to a screeded floor as the floor has no dpm in it and it is damp. the floor was covered in lino and under that is a black bitumen paint onto a screeded floor. I am tiling it with porcelain tiles but i need to cure the damp issue first! I have...
  20. U

    tiles on farmhouse floor have damp grout

    I'm after some advice please. I have read quite a few of your posts and there is plently of help out there. So here goes with my problem. The existing tiled floor was laid in an old property with no damp course so when it is wet only occasionaly and only in some places the grout goes a slightly...
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