Browse Forums General Discussion 1 May 21, 2017 11:11 am The concrete is poured up to the bottom of weeping holes. Is that an issue? Additionally, water seems to pool a bit around the front area, what could be done to resolve that? Thanks! Water poolingLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Water poolingLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Concrete and weeping holeLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Overall pictureLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ OverallLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Weeping hope closeLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: House side concrete drainage 2May 21, 2017 12:49 pm The concreting is not compliant plus there should also be a 1:20 slope (50mm over the first metre) away from the house. The BCA refers to AS 3700 which states: "The height of a DPC, or flashing serving as a DPC, (see Figure 3.3.4.1), must be not less thanβ (i) 150 mm above the adjacent ground level; or (ii) 75 mm above the finished surface level of adjacent paved, concreted or landscaped areas that slope away from the wall (see Figure 3.3.4.1); or Explanatory information: 150 mm clearance between the DPC and adjacent ground level reduces the risk of the effectiveness of the DPC being affected by changes in the surface level. Where changes in surface level are less likely to occur, such as where the adjacent surface is finished with paving, concreting or landscaping, the height of the DPC above that surface may be reduced to 75 mm. When also protected from the weather by a carport, verandah or the like the height of the DPC may be reduced to 50 mm." If you are in a low rainfall intensity area, then further reductions in the height of the damp proof course apply. http://www.weinspecthomes.com.au/wp-con ... -sheet.pdf 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: House side concrete drainage 3May 21, 2017 2:16 pm Thank you for the thorough explanation. In regards to slope away, it's not captured in the picture, however, it's sloping away from the house. Thank you for clarifying that this is correct. I was worried that it might slope too much. In regards to DPC. Is there anything we can do now to rectify this? Thanks for your advice. Re: House side concrete drainage 4May 21, 2017 8:00 pm Unfortunately not, the only fix is to rip and replace. The contractor has done non compliant work, what State are you in? There was a forum member called Ponzu who had non compliant concreting done (insufficient slope) and he took the concreter to V-CAT, presented his case and won, you might want to do a search of his posts in his profile using key words like concrete, slope, compliance etc. Is that an ORG I see in photos 4 & 5? If so, it could be another compliance issue. The ORG must be 150mm lower than the lowest fixture connected to the drain unless a reflux valve is also fitted. Do you have a floor waste in the bathroom, en-suite or laundry? If not, then the shower waste will be the lowest fixture. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: House side concrete drainage 5May 22, 2017 8:09 am I'm in Vic. Yes it's ORG. This is very unfortunate, seems like this is going to be extremely hard to rectify. What would be the steps I should take? When I talked to them, they said that's normal. Should I engage a building inspector? Thanks! Re: House side concrete drainage 6May 22, 2017 1:32 pm I can't give unqualified legal advice and the Victorian Building Authority (VBA) is a toothless tiger. You can download the three part National Construction Code (NCC) free of charge now. The NCC comprises the Building Code of Australia (BCA) Parts 1 & 2 and the Plumbing Code of Australia (PCA) Part 3. The NCC references certain Australian Standards, the Standards have to be purchased but I would download the current NCC as a first step to get the basic facts you need. You need proof that the Standards are referenced in the BCA or otherwise legislated and that the work performed is not compliant. You can write a registered mail letter of demand to the contractor stating the non compliance issues and to start a paper trail but decide first what those demands will be. Do you want them to rip and replace or would you prefer engaging another contractor? The contractor also left a mess on your brickwork and the finish is poor. If the house is still under warranty and there is an issue, the non compliant work could be used by the builder as a get out of jail free card. Some other members may be able to give some further advice. Good luck with it all. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: House side concrete drainage 7May 23, 2017 10:21 am VBA Technical Solution Sheet for ORGs. http://www.vba.vic.gov.au/__data/assets ... Relief.pdf Your ORG is higher than the weep holes...NOT GOOD. Do you have any photos that show the ORG prior to the concrete being laid? It is hard to imagine a plumber being so incompetent. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: House side concrete drainage 9May 26, 2017 1:27 pm Just another point if you do have the concreting redone. You will notice that there is no expansion foam between the path and the two walls. Using an expansion foam strip between the concrete path and the bricks is not a regulatory requirement as far as I know but it is best practice as it not only allows for expansion and stops cracking, it also prevents the concrete sticking to the bricks...something that will most likely be evident if the concrete is removed. There is a tear away strip on top of expansion foam that should be removed and a suitable flexible weatherproof sealant applied once the path has settled. This is not always done! 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: House side concrete drainage 10May 27, 2017 7:45 pm SaveH2O Just another point if you do have the concreting redone. You will notice that there is no expansion foam between the path and the two walls. Using an expansion foam strip between the concrete path and the bricks is not a regulatory requirement as far as I know but it is best practice as it not only allows for expansion and stops cracking, it also prevents the concrete sticking to the bricks...something that will most likely be evident if the concrete is removed. There is a tear away strip on top of expansion foam that should be removed and a suitable flexible weatherproof sealant applied once the path has settled. This is not always done! Save H2O Thanks for your great posts. I learn so much by lurking on H1. I only had the flexible sealant added on top of expansion foam by concreter because of one of your earlier posts. My concreter said he has not done this before! And has been in the industry for many many years. ORG - I've had 3 plumbers out on the 5 months since I moved into the property and they state better if be compliant with ORG being below lowest waste in the house if can't comply with both measurements in landscaping esp if concreting with good slope away from ORG/house. And that VBA inspection of one of plumber's jobs required that ORG height be lowered to ground to comply with measurement below internal floor waste. Re: weep holes - that's a whole other story we didn't discuss as my house is made of Hebel. Re: House side concrete drainage 11May 27, 2017 10:27 pm Plumbing is a self regulated industry and plumbers sign off on their own work. There is endemic non compliance. Concreting is a notorious hit and miss industry with many cowboys. Combine the two and you can end up with potentially very bad situations that most trusting home owners are oblivious to. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Hi HomeOne, I'm in the midst of landscaping a cat run down the side of my house, and the recent rains have me wondering if I need to install some sort of drainage. I've… 0 12285 13 6632 Thanks for the photos. You need to know whether the inflow or the overflow pipe is leaking and this is a simple process of elimination. INFLOW: The vertical riser… 4 4674 |