dpc

Hi everyone, just looking for a second opinion on our filled-in gully! We recently found a broken drain below the gully outside the kitchen of our 1910 house (which the sink and washing machine drain into, so this had just been pouring into the ground for who knows how long!). We have just had...

I’ve recently moved into a house with a recent (5yrs) flat roof extension out the back. The extension has parapet walls topped with coping stones. Not long after we moved in we noticed damp at the right angle with the ceiling and after an inspection of the roof it seems there is either no DPC or...

Basicly I've removed my old conservatory in spring I was going to remove the concrete base as well but damaged my back when doing this. So over the summer I just laid square decking tiles over the old base to tidy it up in the knowledge I'd have to remove them and the base soon as its a brick...

There is a bit of damp in the external solid walls of my house where the patio has been built up above the level of the DPC, bridging it. I believe it may have also covered air bricks so the underfloor void is unventilated. I've sketched the current arrangement. I'm considering what would be the...

I've recently had an issue with damp next to a party wall where we had a unit pushed up to it. We're fairly certain now it was condensation / lack of air movement. Neighbour has no problems on their side. The skirting board was rotten, so I've taken it out and was surprised to find a second...

These engineering bricks have grooves on one face. Do the grooves serve a purpose ? Such as a better key for rendering over ? How would i search for this type of brick, as the lower half of my property is rendered and I need some for an extension. Alternatively, after Ive laid up to DPC with...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...