Browse Forums General Discussion Re: Builder denied the new home warranty for the leak on gar 42Feb 29, 2020 9:47 am 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Builder denied the new home warranty for the leak on gar 44Mar 02, 2020 4:18 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Builder denied the new home warranty for the leak on gar 47Mar 02, 2020 10:24 pm ![]() That is a downpipe diverted from a higher roof. I wished that I had seen a photo earlier that showed it because it raises a few questions as to how it previously drained. Now I don't know whether the downpipe in its original position was the cause of the 'leak'. Are the holes visible in the photo the only holes? Far, far, far from impressed if they are but while it is hard to believe that the plumber hasn't drilled other holes along the bottom of the pipe, plumbers can be an 'inventive' lot. Do I see a cap on the end of the pipe? I went up to the garage roof after they added a white down pipe. The color bond is still not sealed in the holes and gaps. I worry water can go through again. Should the roof be complete sealed? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Builder denied the new home warranty for the leak on gar 48Mar 02, 2020 11:48 pm ![]() I went up to the garage roof after they added a white down pipe. The color bond is still not sealed in the holes and gaps. I worry water can go through again. Should the roof be complete sealed? Have you read AS 1562? Unfortunately, AS 1562 uses terms like "may be" and "should" which do not denote requirement as words like "will" and "must" would. It is a failing in many Standards and why many trade professionals will often say that a Standard under discussion is only a guide and not a requirement. As such, the answer is no, there is no requirement BUT the roof must meet the Performance Requirements found in the NCC which it has already failed. Having a credible professional properly seal the roof would almost certainly meet the NCC's Performance Requirements. Best practice depends on the professionalism of tradespersons and the ethics and social conscience of builders. Sometimes it is just better to find someone with the professional ethics and skillset to affect best practice rather than suffer dolts. They have capped the spreader. This won't allow debris larger than the holes to flush plus if there are no holes on the bottom with one of those holes at the lowest point, they have just given you a mosquito breeding ground. From your description of "they added a white down pipe", I am also wondering whether this upper storey downpipe was originally fitted with a spreader. If not, I would love to know where it drained to. Do you have a photo of the original fitting? Do you know if one of the TWO plumbers sent by Rawson Homes was the same one who did the original work? 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Builder denied the new home warranty for the leak on gar 49Mar 03, 2020 11:37 am No, the plumbers did not explain the cause of the leak. They just said Rawson told them to add a down pipe only. Re: Builder denied the new home warranty for the leak on gar 50Mar 03, 2020 1:13 pm ![]() ![]() I went up to the garage roof after they added a white down pipe. The color bond is still not sealed in the holes and gaps. I worry water can go through again. Should the roof be complete sealed? Have you read AS 1562? Unfortunately, AS 1562 uses terms like "may be" and "should" which do not denote requirement as words like "will" and "must" would. It is a failing in many Standards and why many trade professionals will often say that a Standard under discussion is only a guide and not a requirement. As such, the answer is no, there is no requirement BUT the roof must meet the Performance Requirements found in the NCC which it has already failed. Having a credible professional properly seal the roof would almost certainly meet the NCC's Performance Requirements. Best practice depends on the professionalism of tradespersons and the ethics and social conscience of builders. Sometimes it is just better to find someone with the professional ethics and skillset to affect best practice rather than suffer dolts. They have capped the spreader. This won't allow debris larger than the holes to flush plus if there are no holes on the bottom with one of those holes at the lowest point, they have just given you a mosquito breeding ground. From your description of "they added a white down pipe", I am also wondering whether this upper storey downpipe was originally fitted with a spreader. If not, I would love to know where it drained to. Do you have a photo of the original fitting? Do you know if one of the TWO plumbers sent by Rawson Homes was the same one who did the original work? Thanks for your prompt response. I do not have the original fitting since I have never expected the leak. I never met the plumbers sent by Rawson until the leak. I do not know if they did the original work. I am very frustrated by Rawson Homes. Really regret to have Rawson to build my new home. Re: Builder denied the new home warranty for the leak on gar 51Mar 03, 2020 1:29 pm westbourne I suspect this is a cynical attempt by Rawson Homes to get a ‘golden’ photo to show they are doing something, a photo that also gets put on social media by you, and potentially presented to NSWDFT and NCAT by them later. If your roof is not properly sealed against wind driven rain the leak will happen again. Ask Rawson Homes to identify the root cause of the leak and to explain how the new spreader pipe will fix it. If they won’t, or cannot provide this explanation to forum members’ satisfaction then we can reasonably conclude it’s just another dirty trick. Re: Builder denied the new home warranty for the leak on gar 52Mar 03, 2020 7:05 pm I've been following this thread for some time now, and in all fairness, I think it's very hard for anyone to comment as to what has caused the leak. We all agree that it shouldn't happen in a correctly constructed house but without seeing plans showing roof direction, downpipes, gutters and exactly where the leak was showing up we are all just guessing. Water can run a long way, so where the leak shows up may be far from the source of the leak. None of the flashings seem incorrect or inadequate, as long as they have turned up the top of the trim deck sheets the top end of the roof looks fine. The detail the builder provided is for custom orb and the actual roof cover is trim deck. It's a standard detail that would be used on just about every house and shouldn't cause any issues. It would appear that the downpipe from the upper roof didn't have an adequate (or no) spreader and that may have been the cause of the leak due to the volume of water in one concentrated spot. The fact that it was the first line of attack by the builders would indicate so, but really there is inadequate information for any of us to know. It was poor form by the builders to try and fob of Westbourne by passing it off as an insurance claim but they have come to the party now and hopefully will provide a satisfactory remedy. As SaveH2O has mentioned, there are a few issues with the spreader they have installed, but if that's dealt with its quite possible that the roof will be fine from this point on. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Builder denied the new home warranty for the leak on gar 53Mar 03, 2020 8:01 pm ![]() I've been following this thread for some time now, and in all fairness, I think it's very hard for anyone to comment as to what has caused the leak. We all agree that it shouldn't happen in a correctly constructed house but without seeing plans showing roof direction, downpipes, gutters and exactly where the leak was showing up we are all just guessing. It would appear that the downpipe from the upper roof didn't have an adequate (or no) spreader and that may have been the cause of the leak due to the volume of water in one concentrated spot. The fact that it was the first line of attack by the builders would indicate so, but really there is inadequate information for any of us to know. I agree absolutely. Still surmising ![]() If there was a photo of the original fitting and location of discharge, one could nevertheless present an educated hypothesis but such is not to be. 3in1 Supadiverta. Rainwater Harvesting Best Practice using siphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost, siphonic, eaves gutter overflow solution. Re: Builder denied the new home warranty for the leak on gar 55Mar 05, 2020 6:14 am chippy what do you consider an appropriate method of sealing under the custom orb or trim deck profiles and flashings against sideways and upwards wind driven rain? I think spreading the water more can help reduce pressure versus the drainage situation before, however this won’t solve the basic problem if westbourne ‘s roof remains inadequately sealed inside under the steel profiles. What’s your opinion? Re: Builder denied the new home warranty for the leak on gar 56Mar 05, 2020 2:57 pm ![]() @chippy what do you consider an appropriate method of sealing under the custom orb or trim deck profiles and flashings against sideways and upwards wind driven rain? I think spreading the water more can help reduce pressure versus the drainage situation before, however this won’t solve the basic problem if westbourne ‘s roof remains inadequately sealed inside under the steel profiles. What’s your opinion? Hi Norfolk There is no need to add sealant under flashings to prevent wind driven rain from entering the roof space. The ribs in any roof profile are designed to mitigate the potential for wind drive. Those, coupled with adequate sized flashings will prevent it. The below pictures show how the turn up on sheets and the adequate sizing of flashings are able to provide for wind conditions. Westbourne hasn't provided details as to where the leak was compared to all downpipes, flashings, gutters etc, but I'd be pretty certain the leak resulted from the sheer volume of water coming from the upper roof, coupled with inadequate spreading of the load. From the video it was a lot of water over a sustained period, that seems to correlate more with large volumes of water being able to breach a flashing or gutter than a wind driven event. I suspect that the builder is aware that this was the cause as they've added the spreader rather than go crazy with the silicon. I don't think everyone needs to panic that standard roof flashings are inadequate. There is no way roof plumbers need to be siliconing up every little gap on a roof. It simply isn't required, would add unnecessary expense and will look ugly. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Builder denied the new home warranty for the leak on gar 57Mar 05, 2020 3:26 pm Hi chippy thanks, this all makes sense. I was wondering about the foam type sealing that can be imstalled under the profile & flashing thats pictured in HB 39. This product was installed on my garage roof.
[img:2j9b6w3m]https://forum.homeone.com.au/u/76955_1583385939.jpg[/img:2j9b6w3m] Re: Builder denied the new home warranty for the leak on gar 58Mar 05, 2020 3:31 pm ![]() ![]() ![]() chippy what do you consider an appropriate method of sealing under the custom orb or trim deck profiles and flashings against sideways and upwards wind driven rain? I think spreading the water more can help reduce pressure versus the drainage situation before, however this won’t solve the basic problem if westbourne ‘s roof remains inadequately sealed inside under the steel profiles. What’s your opinion?[/quote:2j9b6w3m] Hi Norfolk There is no need to add sealant under flashings to prevent wind driven rain from entering the roof space. The ribs in any roof profile are designed to mitigate the potential for wind drive. Those, coupled with adequate sized flashings will prevent it. The below pictures show how the turn up on sheets and the adequate sizing of flashings are able to provide for wind conditions. Westbourne hasn't provided details as to where the leak was compared to all downpipes, flashings, gutters etc, but I'd be pretty certain the leak resulted from the sheer volume of water coming from the upper roof, coupled with inadequate spreading of the load. From the video it was a lot of water over a sustained period, that seems to correlate more with large volumes of water being able to breach a flashing or gutter than a wind driven event. I suspect that the builder is aware that this was the cause as they've added the spreader rather than go crazy with the silicon. I don't think everyone needs to panic that standard roof flashings are inadequate. There is no way roof plumbers need to be siliconing up every little gap on a roof. It simply isn't required, would add unnecessary expense and will look ugly. [img:2j9b6w3m]https://forum.homeone.com.au/u/22605_1583384200.png[/img:2j9b6w3m] [img:2j9b6w3m]https://forum.homeone.com.au/u/22605_1583384223.png[/img:2j9b6w3m][/quote:2j9b6w3m] Hi chippy thanks, this all makes sense. I was wondering about the foam type sealing that can be imstalled under the profile & flashing thats pictured in HB 39. This I was installed on my garage roof. [img:2j9b6w3m]https://forum.homeone.com.au/u/76955_1583385939.jpg[/img:2j9b6w3m] Here is HB 39 Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Builder denied the new home warranty for the leak on gar 59Mar 05, 2020 5:01 pm Hi Norfolk Those sorts of products can't hurt but are totally unnecessary. Lysaght's the company that manufacture colorbond roofing don't specify it as a requirement. As long as you follow the design specifications that they recommend (as per screen shots above) you don't need additional sealing. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 If you make sure all taps inside and out are turned off, what does the water meter show if you leave it for a while. 2 21909 Hi all, I am hoping someone has some ideas as to what is causing my bathroom leak. The leaking appears to mainly happen when we turn the sink basins on. It takes a while… 0 6226 DIY, Home Maintenance & Repair Are you doing this with a building permit? Conversion of a non habitable room into a habitable room requires building permit. 3 20063 ![]() |