Pocster Posted March 13, 2019 Author Share Posted March 13, 2019 Did polythene test over largest ‘leak’ Took it off today - water track the same ? Link to comment Share on other sites More sharing options...
jamiehamy Posted March 13, 2019 Share Posted March 13, 2019 Cut a patch of polythene in a square, say 300x300. Tape it on to a completely dry patch of concrete and leave for a day or two. You need to tape all 4 sides completely. Take it off after a day or two and see if it's damp - if so, the concrete is still curing (it always will but initially gives off lots of moisture). That could help narrow it down now to concrete giving off moisture or maybe tracking moisture from external? Link to comment Share on other sites More sharing options...
Pocster Posted March 13, 2019 Author Share Posted March 13, 2019 5 minutes ago, jamiehamy said: Cut a patch of polythene in a square, say 300x300. Tape it on to a completely dry patch of concrete and leave for a day or two. You need to tape all 4 sides completely. Take it off after a day or two and see if it's damp - if so, the concrete is still curing (it always will but initially gives off lots of moisture). That could help narrow it down now to concrete giving off moisture or maybe tracking moisture from external? That slabs been there for 3 years ! Surely it’s cured by now ? ? Link to comment Share on other sites More sharing options...
Pocster Posted March 13, 2019 Author Share Posted March 13, 2019 Refitted 2 frames with structual silicone . Although external timber in the upstand for peace of mind treated them Link to comment Share on other sites More sharing options...
jamiehamy Posted March 13, 2019 Share Posted March 13, 2019 28 minutes ago, pocster said: That slabs been there for 3 years ! Surely it’s cured by now ? ? Ah! I wasn't sure how fresh it was and just trying to cover bases! 1 Link to comment Share on other sites More sharing options...
Pocster Posted March 13, 2019 Author Share Posted March 13, 2019 (edited) 36 minutes ago, jamiehamy said: Ah! I wasn't sure how fresh it was and just trying to cover bases! To be honest ( from memory ) i’m Fairly certain that corner has always had that fault and track . Tried to find an old photo but couldn’t . I’m 99% sure the corner ‘leaked’ when just the slab was down . Obviously as I had holes everywhere I didn’t worry about it Edited March 13, 2019 by pocster Link to comment Share on other sites More sharing options...
Pocster Posted March 15, 2019 Author Share Posted March 15, 2019 (edited) I THINK I may have found something. Ordered some Dye to prove it. Here's what I think is happening... Today I decided to hose down the outside of the lane wall - underneath was damp and showed water track marks as usual. Someone turned up - so I stopped hosing and spoke to them for 15 minutes. I then went underneath and it was I THINK far more clamy and damp on the ceiling. Whilst all track marks (apart from 1) seem to go to the edges and the water appears to come in above the original slab and in the 'void' i.e. where the insulation is ; got me thinking.... The below ground blocks etc. were all poured as one. But the 100mm slab and 35mm reinforced concrete were done after. What's to stop a hairline crack being between these separate pours? . There's no detail in the architects design for this. But at the edges what stops water getting 'in-between' the layers? Edited March 15, 2019 by pocster Link to comment Share on other sites More sharing options...
jamiehamy Posted March 15, 2019 Share Posted March 15, 2019 I have a feeling this is it... And there will be solutions, both short and long term. Fingers crossed you get the root cause and then focus on solution. 1 Link to comment Share on other sites More sharing options...
Pocster Posted March 15, 2019 Author Share Posted March 15, 2019 3 minutes ago, jamiehamy said: I have a feeling this is it... And there will be solutions, both short and long term. Fingers crossed you get the root cause and then focus on solution. Yeah . It causes a few problems though . i have to assume all 3 sides of the slab ‘leak ‘ . 2 of which are on my property. The 3rd though is this lane - owned by no one but caused all kinds of problems during planning . I can’t easily ( or cheaply ) close the lane . But ! I presume I could in theory did a narrow trench against the wall down to the 100mm original slab .... Link to comment Share on other sites More sharing options...
Pocster Posted March 15, 2019 Author Share Posted March 15, 2019 Maybe just re tarmac the lane ??? Link to comment Share on other sites More sharing options...
jamiehamy Posted March 15, 2019 Share Posted March 15, 2019 You need this one fixed properly - you really don't want to live with the worry that it will get worse over time - and you would worry. Were it me, I'd put the theory into practise on the other two sides - work out carefully what you want to do, do it and work out improvements as you do it. Folks on here will help with a design that ensures moisture is routed to the right area - I.e away and down enough not to penetrate the roof. Then, when you are happy, choose a long weekend (Bank Holiday) and get in there with a Stihl, Jackhammer (wearing all the right high viz and with suitable safety precautions for pedestrians), dig down, put in your water proof layer, backfill, tamp and then (somehow) retar it. Don't ask your council for permission (ask @AliG about that!) unless you decide to go 'by the book'. Only my advice - once you go down the 'by the book' route, you'll get buried in red tape. For now however, you could try some Bituminous paint at the wall/tarmac join and see what happens? Link to comment Share on other sites More sharing options...
Pocster Posted March 15, 2019 Author Share Posted March 15, 2019 1 hour ago, jamiehamy said: You need this one fixed properly - you really don't want to live with the worry that it will get worse over time - and you would worry. Were it me, I'd put the theory into practise on the other two sides - work out carefully what you want to do, do it and work out improvements as you do it. Folks on here will help with a design that ensures moisture is routed to the right area - I.e away and down enough not to penetrate the roof. Then, when you are happy, choose a long weekend (Bank Holiday) and get in there with a Stihl, Jackhammer (wearing all the right high viz and with suitable safety precautions for pedestrians), dig down, put in your water proof layer, backfill, tamp and then (somehow) retar it. Don't ask your council for permission (ask @AliG about that!) unless you decide to go 'by the book'. Only my advice - once you go down the 'by the book' route, you'll get buried in red tape. For now however, you could try some Bituminous paint at the wall/tarmac join and see what happens? Oh I avoid the council don’t worry ! Neighbors will keep the council informed!! ? Link to comment Share on other sites More sharing options...
Pocster Posted March 19, 2019 Author Share Posted March 19, 2019 Well I put red dye along the lane floor right next to my wall . 2 bucket falls . No sign of any red inside yet . Yesterday I mixed some cement and filled any holes in the stone work . 1 Link to comment Share on other sites More sharing options...
Pocster Posted March 19, 2019 Author Share Posted March 19, 2019 1 hour ago, pocster said: Well I put red dye along the lane floor right next to my wall . 2 bucket falls . No sign of any red inside yet . Yesterday I mixed some cement and filled any holes in the stone work . So it’s a question now of waiting for rain . Took photos of the track marks today ( should of taken photos yesterday doh ! ) . Can compare tomorrow... Link to comment Share on other sites More sharing options...
Pocster Posted March 20, 2019 Author Share Posted March 20, 2019 Think we had a bit of rain last night . Track marks look pretty much the same . Not a hint of the red dye . So today’s check is inconclusive. Will hose that outside wall again later 1 Link to comment Share on other sites More sharing options...
Pocster Posted March 20, 2019 Author Share Posted March 20, 2019 Hosed the wall throughly Lane still a bit pink from yesterday! ? Link to comment Share on other sites More sharing options...
Mr Punter Posted March 20, 2019 Share Posted March 20, 2019 18 minutes ago, pocster said: Hosed the wall throughly Lane still a bit pink from yesterday! ? Wow - looks like a crime scene! 1 Link to comment Share on other sites More sharing options...
Pocster Posted March 20, 2019 Author Share Posted March 20, 2019 The dye did say 5g to 100 litres. I did 5g to a bucketful of water ? ; then did 2 bucket fulls. It was certainly VERY bright! Link to comment Share on other sites More sharing options...
Pocster Posted March 23, 2019 Author Share Posted March 23, 2019 Well ! The lead flashing looks spot on ! 1 Link to comment Share on other sites More sharing options...
Onoff Posted March 23, 2019 Share Posted March 23, 2019 Its where it tucks into the wall is critical. Ideally a slot at a slight angle. Has the lead been oiled? Really brings it up. Link to comment Share on other sites More sharing options...
Pocster Posted March 23, 2019 Author Share Posted March 23, 2019 2 hours ago, Onoff said: Its where it tucks into the wall is critical. Ideally a slot at a slight angle. Has the lead been oiled? Really brings it up. Not oiled yet Link to comment Share on other sites More sharing options...
Pocster Posted April 2, 2019 Author Share Posted April 2, 2019 Potentially good news No rain for a week . Had some today . Ceiling to left of opening looks the same . Up stand dry . This side faces the lane where I think I fixed the leak . Leak to right runs off front wall which I haven’t done anything to . No champagne yet though ..... Link to comment Share on other sites More sharing options...
Pocster Posted April 3, 2019 Author Share Posted April 3, 2019 Rain again last night . That edge looks the same ! Link to comment Share on other sites More sharing options...
Mr Punter Posted April 3, 2019 Share Posted April 3, 2019 Have you got all the rooflights in, flashings done, parapet walls complete and copings on? Link to comment Share on other sites More sharing options...
Pocster Posted April 3, 2019 Author Share Posted April 3, 2019 3 hours ago, Mr Punter said: Have you got all the rooflights in, flashings done, parapet walls complete and copings on? No. 1 roof light to go (needs some repair work and a few dry days). Flashings done. Coping (that are damaged have dpc covering them ). I'm pretty confident this leak is fixed. So when we get a few more dry days will stick some dye along the front wall ( where the 2nd leak appears to track from ). Link to comment Share on other sites More sharing options...
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