Already addressed.
Browse Forums Building A New House Re: Downpipe at facade 21Aug 20, 2021 5:05 pm 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: Downpipe at facade 23Aug 20, 2021 6:57 pm 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: Downpipe at facade 26Aug 24, 2021 12:44 pm 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: Downpipe at facade 28Aug 24, 2021 1:26 pm Sounds like they don't like admitting they don't know the appropriate regulations or how DTS and performance Solutions work. EDIT: I just checked the BCA (Part 2 of the NCC) and they do not state any required distance under the gutter slots nor do they reference the AS for same when calculatimg the gutter's effective cross sectional area. Looks like whoever published the regs knew nothing about hydraulic jumps etc. The ACE 115mm quad gutters meets compliance. The BCA roof and stormwater drainage regs are sub standard. Here in Victoria, the BCA has for good reason never been adopted as a DTS provision for roof drainage systems. 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: Downpipe at facade 29Aug 24, 2021 2:41 pm boang Ive got a roof plan area of 133mm2 * 1.23 = 164.21mm2 - total catchment area I just realised that this includes the garage roof. Anyway, this isn't really important as you only need to concentrate on the house roof and its 6 downpipes.Just minimise as much as you can the amount of water draining to the two front downpipes. 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: Downpipe at facade 30Aug 24, 2021 4:22 pm boang Thanks SaveH2O, I tell them exactly everything you say and propose including the standards yet they dont take it or consider it. I really dont know what to do to convince them. they did consider it and they've offered to remove it for you if you indemnify them from any damage resultant from the removal of the downpipe. I think if you want to protect your warranties you're going to either accept their original plan or do more than run messages back and forth on the forums. SaveH20 is ultra knowledgeable, but you're now venturing into a level of involvement that would be considered paid consulting work by many. Dark matter scientist, can breathe underwater, mind reader and can freeze matter just by willing it. Trust me, its in my sig. Re: Downpipe at facade 32Aug 24, 2021 6:44 pm Yes but I would try to have HP 3 closer to D3 but more importantly have HP 5 closer to D6 to reduce the volume of water discharging to the garage roof. 14.3 m between the two front downpipes has been their objection and despite the builder quoting non existent regulations, it is a lot of guttering with corners which slows flow, the reason I would like to see DPs 3 and 6 harvest lesser roof areas despite having efficient round downpipes. If only the water coming off a valley could be discharged towards the downpipe. 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: Downpipe at facade 34Aug 24, 2021 8:13 pm Looks good. I think D3 was a tad closer to the corner on the original plan. The shorter the gutter length, the better. Maybe also paste the "serve no more than 12 m of guttering" reg below the update. 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: Downpipe at facade 35Aug 24, 2021 8:32 pm SaveH2O Looks good. I think D3 was a tad closer to the corner on the original plan. The shorter the gutter length, the better. Maybe also paste the "serve no more than 12 m of guttering" reg below the update. Yeah I'll emphasize "serve no more than 12 m of guttering" because they keep emphasizing "to comply with the NCC (minimum 12m between downpipes, with a recommendation to have downpipes as close to valleys as possible)" which is not stated in NCC there is no "between" word stated in the NCC i dont know why they keep pushing it Re: Downpipe at facade 36Aug 24, 2021 11:57 pm They have re-worded that particular regulation a few times now, it was "between" at one stage in the now distant past. The NCC does state "downpipes close to valleys" but AS 3500.3 which is an accepted DTS solution doesn't. It is often ignored anyway because building surveyors don't know and they just accept the plumber's Certificate of Compliance as proof of compliance lol. This practice is an endemic failing within the system. The BCA also lists State and Territory specific additions and variations, the NSW ones start on page 425. These should be cross referenced when checking regulations and Standards and also looked for in the general text. The similar house in the photo you posted may have had bigger gutters and small roof harvest areas which allowed them to use the AS as a DTS solution or they may have just ignored the NCC reg. It might also be an ex display home. Architects often draw downpipes in nominal positions and leave it up to others (plumbers) further down the food chain to fit them in the correct position for compliance but this is rarely done because they are not paid to do it and many don't know/support Best Practice in any case. The importance of street scape on display homes will invariably see no downpipes fitted at the front and display homes often have non compliant roof drainage. A NSW display home roof drainage compliance blitz during the early high fronted gutter fitting debacle saw most display homes the DFT inspected fail compliance. I'll post a link to the NSW Parlimentary report. It remains an interesting read. https://www.gutterpumper.com.au/files/H ... report.pdf If you are going to have a water tank, check with me on here first because practically everyone ends up with a sub standard system. BTW, you have probably realised before now that my early replies were made in the belief that the house was already built and the guttering and downpipes fitted. I should have asked rather than assume. I think that some of my comments re removing the downpipe and resloping the gutter may have confused you. 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: Downpipe at facade 38Mar 29, 2022 10:24 am beetleone @boang did you end up moving the downpipe ? I just saw this thread Hi beetleone, Nope we didnt, as the builder will end up having us signed a document that keep them clean if ever something happens with the downpipe or gutter having problems Re: Downpipe at facade 39Apr 29, 2022 9:31 pm boang beetleone @boang did you end up moving the downpipe ? I just saw this thread Hi beetleone, Nope we didnt, as the builder will end up having us signed a document that keep them clean if ever something happens with the downpipe or gutter having proble oh i see, which builder? Building Standards; Getting It Right! It's all good. You can get both wye piece and the coupling with or without thread. The cost difference is negligible and means the plumber only has to carry the single… 1 4928 Dear Members I have to decide the Facade column size. My custom builder standard is 350mm with rendering, but i asked for 470mm plus stone or tiles and yet to get… 0 7497 |