tanking

  1. J

    Tanking basement wall with electric meter

    Hello, I'm planning on applying tanking slurry to a basement wall to make it an habitable environment. On one of the walls there is an electric meter, fuse box and Electricity Main Supply Cable (see image below). Building Regs have said that the wall behind the electricity meter needs to be...
  2. P

    Limestone external underground wall

    Hi, We’ve have an old stone house, the interior walls have been lime plastered. We have noticed that damp is still coming through one external wall which is between 1ft to 2ft underground. The neighbouring farm gets huge pools of water during the winter. What would be the best course of...
  3. N

    Cavity drain cellar tanking - how to finish?

    Dear DIYnot, Longtime lurker; first time poster, so be gentle! We're currently having our cellar tanked with a cavity drain system (Wykamol). It's the full works: membrane on walls & floor, perforated channel around the outside, sump with twin pumps, and I think I understand how it all...
  4. K

    Problem walls after removing bathroom tiles

    Currently renovating my bathroom, and while ripping the tiles out ( 2 layers of tiles) I noticed the internal walls are not the standard stud-work and plasterboard. They are very thin like a cardboard material down the middle so I have nothing to mechanically fix new plasterboard to. My initial...
  5. A

    How to fix wall behind broken tile

    Hi all, Hoping you can help. I’ve been tiling my shower and was ready to grout before putting a massive scratch on one of the tiles. I went to remove the tile but it’s taken the tanking and some of the cement board with it. As it’s in a shower, I want to do what I can to make sure it’s not going...
  6. L

    Builder does not understand waterproofing the basement

    Hi all, I'm back for a bit of advice please. We got a builder in to waterproof our basement and have got a real mess on our hands. A bit of a long story.. We have a narrow Victorian basement that is pretty damp that we wanted converting into a dry utility room. We got some surveys and quotes...
  7. M

    should i tank this area in my wetroom or not?

    Hi, all I have just finished my wetroom and tanked all areas, to my understanding because this is a wetroom, therefore, all areas should be tanked. However, I have created a large concrete step that is spirit levelled and my worry is if I tank this area then should any water ingress via...
  8. M

    Backerboard Concrete block bench (Wetroom)

    Hi All, Hope you can help. I am just wondering whether I should backer-board the concrete block bench in my wet room, applying it with a tile adhesive. Or can I tile directly on top of the concrete block work? I worry about moisture or cracks within the concrete block/to tile directly on...
  9. M

    Wet-Room Tanking/full water proof

    Hi guys, I am in the final process of completing my wetroom prep before tiling. All that is needed is the waterproofing and my mortar bed slope to the linear drain. I have applied waterproof backer boards, now I am ready for tanking/waterproofing. My question is should I fully Tank my backer...
  10. P

    Shower tray - sealing question

    Just fitted a large and heavy stone shower tray onto a mortar bed. I forgot to run silicon sealant around the edges, before tanking with liquid latex and adhesive repair tape from Aquaseal. The tape overlaps onto the shower tray, making a waterproof seal all around it. Do I now need to cut the...
  11. StephenStephen

    Siniat Aquaboard or cement board behind shower?

    Hi all, Thanks for your thoughts on this: I've used cement board and then BAL tanked for shower walls before. I've got someone coming in to redo our bathroom who is suggesting he'd use Aquaboard: https://www.siniat.co.uk/en/products-and-systems/products/internal-boards/10-aqua-board. I've...
  12. M

    Wet Room Renovation (Walls Boarding & Concrete Bench Placement)

    Hi, Guys would like your advice and opinions please concerning my wetroom renovations. I have stripped the walls back to bare brick and removed the previous concrete screed. Sadly, the previous screen was done by someone who didn't slope it correctly allowing water to flow out of the wetroom...
  13. M

    Tanking slurry vs bitumen emulsion. Damp garage wall.

    I have a garage which is built with the walls sitting on the concrete slab, with a DPC at floor level, single skin brick. Parts of the walls are below ground, when it rains water seeps through the DPC. I've dug out and exposed one side and will cut back the DPC as close to the brick joint as...
  14. L

    Metal Stud Wall in Tanked Basement

    Hi, Contractors are completing my basement and tanking it all (Delta Membrane). I am installing metal stud walls to the edges of the room that will be insulated but only plasterboarded on the one side, so I am concerned about the strength/possible felixibility of the wall as it will be approx...
  15. L

    Making floor for basement conversion (ed.)

    Hi, I did have an account on here a few years back but can't login.. So I'm converting our basement into the babies future playroom but I'm stuck on floor choice. My current substrate is the original brick type floor which was possibly laid when the house was built c.1870. My main goal is to...
  16. A

    Basement tanking best practice

    Hi there, new to this forum and grateful in advance for any advice. Have a property that used to be a pub, so has a large cellar/basement, and looking to make the space a bit more usable by tanking the walls and floor to create a space for storage that's a bit dryer. The walls had a layer of...
  17. M

    Tiling letting water through even with Membrane

    Bear with me, this is a long story: This the 5th time I've had this work done, and no body seems to know the cause. I have a bath mounted shower, which comes off a bath mixer tap which come from the floor. (THERES NO PIPES IN THE WALL). This was all originally fitted with new tiles after I...
  18. K

    Preparing damaged wall for tanking

    Hi.. i'm sorting out my bathroom in my converted Victorian terrace flat to fit new shower etc, few damp issues which im in the process of sorting slowly. A company quoted for the following to be done: 1) To apply anti-sulphate onto the brickwork. 2) To plaster the wall with sand and cement...
  19. S

    Tanking help

    Hello, I am looking for a bit of help with a tanking project. I have a small storage area under the front steps (apx 6ft x 3ft), which is mostly below ground level (I expect it’s the old coal storage area since the house is a Victorian terrace). We have had some problems with water ingress and a...
  20. R

    Building an extension against an existing garden retaining wall

    Hi I am planning on building a one storey extension to the rear of my garden flat which is on the ground floor of a victorian terrace house in london. There is an existing sunken patio to the rear of my flat and there is a 1.2m high retaining wall holding the raised garden. The extension I want...
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