Browse Forums Building Standards; Getting It Right! Re: Weep hole help 3Jul 10, 2018 8:24 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: Weep hole help 6Jul 11, 2018 9:13 am I went to your profile and found that you are building in Jordan Springs which is not a low intensity rainfall area like Adelaide for example. A low intensity rainfall area is defined as having a 1:20 Average Recurrence Interval (ARI) of 120mm/hr or less. The Building Code of Australia (BCA) Part 2 2016 which is Part 2 of the 3 Part National Construction Code (NCC) refers to AS3700 and AS4773. The applicable regulation states: "The height of a DPC, or flashing serving as a DPC must be not less than— (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 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, further reductions in the damp proof course height apply. South Australian variations found in the BCA also apply. Parts 1, 2 and 3 of the NCC can be downloaded free of charge. The DPC is at the bottom of the weep holes.. It is BAD to have turf or gardens level with the weep holes because it also gives access to termites. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. it depends on the natural ground level, if they excavated their boundary wall needed to be built as a retaining wall. If you filled, which sounds like the case then you… 1 7074 I know foam has been around since the 90's and CSR started manufacturing Hebel in 1989, so it's definitely possible 5 5421 You are correct. Just read through all the ncc rules and 75mm is the minimum requirement for me. 4 11145 |