dpc

  1. U

    Patio solutions for low air brick and DPC

    Hi all, I am in the process of planning my garden and I have a bit of an issue which I am not sure how to resolve. I have 2 air bricks at the back of the house which are about 100mm from ground level (cement floor). I DPC is also not that much higher. (maybe another 20mm). Is there a way to...
  2. R

    Where is my Dpc

    Hi, i have a 1930's house. Started getting a white residue line going across my property wall. I was told that my driveway being butted up against the wall is the reason. So i got a drainage specialist for a quote for aco drain installation. He said you have dpc its the two blue bricks above...
  3. R

    Damp proofing a new floor

    Hi, In need of a bit of advice or guidance regarding the possible need for damp proofing to an existing external wall that now becomes an internal wall after an extension. I plan to keep it as exposed brickwork as attached visual. The problem (or maybe it's not a problem) I have is the new...
  4. D

    Where is the DPC line

    Hello all. My first post but have been browsing the site for years. Intended to pave out the little front terrace but for the life of me can not figure out where the DPC line is so I can build it 150mm below it. It is a property built in the 1920's with a cavity wall. I've dug out patches of...
  5. P

    Dpc around window

    Thank you so much for reading this - please help! The DPC around my bathroom window is shoddy and there's a big gap between the metal lintel and the aerated block. I'm planning to stick Gorrila waterproof patch and seal tape to the window frame and dpc on the sides of the frame and the bottom...
  6. P

    Please stop me if I'm about to do something really stoopid...

    Thank you so much for reading this - please help! The DPC around my bathroom window is shoddy and there's a big gap between the metal lintel and the aerated block. I'm planning to stick Gorrila waterproof patch and seal tape to the window frame and dpc on the sides of the frame and the bottom...
  7. M

    What to do with this very tall concrete plinth?

    Hello, About to exchange on a property and the damp survey has suggested removal and replacement of the damp proof course that goes around the house. It is a solid brick wall and it is assumed there is a slate DPC hiding under there. Now from my research most people say to remove it but its...
  8. S

    Building over Damp Proof Course (DPC) ? Protecting wall with Membrane ?

    Someone mentioned to me that you could build above the external Damp Proof Course (DPC) as long as you protected it with a membrane Damp Proof Membrane (DPM). Im not convinced and think this will cause issues long term and wanted some other peoples thoughts on the matter ? Please see below...
  9. H

    Efflorescence on floor - DPC/DPM breach

    Had some building work done last year include new French doors. Have been saving up some more £££ to finish the room. This winter I’ve noticed a patch of efflorescence. It didn’t happen last year. Seems a bit odd. Are there any immediate actions I should take? The second photo is under that...
  10. J

    Copes and render

    Hi all, Looking for advice regarding render and DPC. Looks like old tar, the removed render had been serverely damaged by frost, the bricks too. My thinking is, remove copes and use a modern DPC. Then ideally a lime finish like a this Lux product...
  11. H

    Closing a cavity below door

    hi there, I am looking for some advice regarding my home project. We have had the wall below a window removed to make way for a back door which is being fitted at the end of the month. As you can see from the photos there is an existing dpc on the external leaf. The internal wall was brick...
  12. H

    Closing a cavity

    hi there, I am looking for some advice regarding my home project. We have had the wall below a window removed to make way for a back door which is being fitted at the end of the month. As you can see from the photos there is an existing dpc on the external leaf. The internal wall was brick...
  13. H

    Closing Dpc with cavity closer or concrete?

    hi there, I am looking for some advice regarding my home project. We have had the wall below a window removed to make way for a back door which is being fitted at the end of the month. As you can see from the photos there is an existing dpc on the external leaf. The internal wall was brick...
  14. L

    inner leaf block work around external door.. return it?

    Hi all, i'm self building a porch and have got to the DPC.. building control are happy so far. I've got a dpm lapping over the inner block work and about to put the dpc and first course of blocks on.. couple of questions Doorway - Do i return the block work to 'meet' the outer leaf brick and...
  15. G

    Patio higher than DPC and new foundations

    Hi, this is my first post, I hope the below will make sense. We have been doing some research online but still in a bit of a quandary about what to do! We have had a small new extension put in with bifold doors in place however the foundations and new DPC are below the patio. Unfortunately the...
  16. E

    Wildly varying DPC levels with shallow foundation for patio build

    Bit of a uncommon DPC/foundation situation here has left us in a pickle. I've highlighted the DPC levels in green. See Picture. We bought this house 2 years ago. We found its a 1970s, had an extension in 1975 and a large interior redesign in the last 15 years that included moving the rear...
  17. M

    Isolated DAMP issue on front elevation 1875 mid terrace (Yorkshire)

    I'll try keep it as brief as possible as I could go on on.. I'm having an internal damp issue on the front internal wall (north facing). See pictures of internal and external. House built in 1875. Yorkshire stone build. Damp ONLY occurs in winter, coincidentally when turning the heating on...
  18. Rageyboy91

    Stepped DPC making tidy.

    Evening, I have this hole in the render outside in the wall and I want to fill it in, it's a solid brick wall and the dpc is stepped, the porch dpc is highier than the original wall. I filled the hole in originally with lime nhl 3.5 and finished in lime wash, hoping it would breath and...
  19. J

    House to conservatory DPC with doors removed

    Hi, confident DIYer but never done something like this before... we've recently had our conservatory upgraded with a solid lightweight roof and new frame and glazing and built up the existing dwarf wall to full height (block and Brock with cavity) adjacent to the neighbours (previously just...
  20. Chendy

    Something to place beneath new built wall so when wall removed leaves no marks on floor?

    I am getting a polished concrete floor. After it is finished I will be rebuilding a small dense concrete block partition wall. However, it is likely I will take this wall down at some point. I don't want staining/marking on the polished floor should I ever remove this wall. So thinking of...
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