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  1. M

    blue layer under concrete floor

    Any comments or suggestions on this please? Cheers Michael
  2. M

    strange patch on wall in utility room

    Thanks dann09 - you might be right. I know that a previous owner extended the utility room by moving the wall separating the utility room and garage to make the garage more narrow and the utility room wider. By doing so they probably needed to lower the floor in the utility room to bring it...
  3. M

    blue layer under concrete floor

    Thanks everyone - bought some "Damp Proof Membrane Liquid 5L" (http://www.wickes.co.uk/damp-proof-membrane-liquid-5l/invt/241217/) today from Wickes. Is it a good idea to paint any exposed sides of the walls as well or should I just stick to the floor? It looks like (see pictures in my 2nd...
  4. M

    strange patch on wall in utility room

    I've uploaded some more pictures to show the 2nd patch and its location in relation to the strange patch I reported initially. As I said, both have been there for years and not changed: BTW, the skirting board under the 2nd patch doesn't show the rust mark anymore as I had cleaned it...
  5. M

    blue layer under concrete floor

    Thanks damn09 - there is definitely no membrane under the floor; the membrane is only under the bricks in the wall. Under the floor is just that thin blue layer. The bitumen is just where the pipes were and there was no membrane hidden in there. I assume the blue layer is the DPC under the...
  6. M

    strange patch on wall in utility room

    I didn't have time last night. BTW, when I said in my previous post that I had taken the skirting board off from a different wall I should have mentioned that I did this many years ago :-)
  7. M

    strange patch on wall in utility room

    Do you mean you can't see any signs of damp or the arrow?
  8. M

    strange patch on wall in utility room

    I haven't taken the skirting board off but it looks and sounds (when tapping it) solid; I did take the skirting board off from another wall in this room which also had the rusty nails and a similar patch; the skirting was not mouldy at all. I know there are a lot of pipes in that wall...
  9. M

    blue layer under concrete floor

    There is no light in the room so I tried to take some pictures with my camera using its flashlight: The blue stuff looks like paint as it's a very thin layer and it's stuck to the ground; you can also see some blue on the black membrane which further suggests that it was...
  10. M

    strange patch on wall in utility room

    Thanks damn09 - I found a picture when we did up the kitchen in 2007 which shows entrance into the utility room: The patch in the utility room existed then and hasn't changed since and is on the other side of the wall where I drew the arrow in the picture. There was nothing visible...
  11. M

    strange patch on wall in utility room

    Hi rjm2k - on the other side of the wall where the patch is there is the kitchen. On the other side of the room is the garage. Here is rough layout if the rooms: The patch is where the arrow is pointing to. The brown areas are where the flat roof is. All nails in the skirting...
  12. M

    strange patch on wall in utility room

    Hi - in our utility room there has been a strange patch on the wall since we moved in. It hasn't really changed over time and I showed it a builder and he wasn't too concerned about it. Some of the plaster is missing and the wall, especially on the corner where the door to the kitchen is feels...
  13. M

    blue layer under concrete floor

    Here is an image that shows the blue layer and the black membrane: And here you can see the black sticky layer that's under the central heating pipes:
  14. M

    blue layer under concrete floor

    Hi - I've doing some cabling and pipe work in the living room and have dug a channel where the concrete floor meets the wall. I noticed that the concrete sits on a a thin blue layer of light blue paint, a bit like the colour of the walls in swimming pools. The bricks of the wall sits on top a...
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