Browse Forums General Discussion 1 Jun 17, 2013 2:21 pm As I understand it, it is recommended that a house with a waffle pod slab be surrounded by a concrete path of at least 90cm width so help prevent cracking etc. We're looking at siting our garage on (or very close to) our boundary, so what extra steps can we take to avoid cracking in that area. We can do the path around the rest of the house, just not on that one section of wall. Is it likely to have a detrimental affect? Re: waffle pod slab and concrete "apron" 2Jun 17, 2013 3:29 pm How much exactly you'll have between your wall to the boundary? Nevertheless, more important is the topography of that area and your block (including on the adjoining block), where are the falls, highs and lows (if any)? My signature is distracting people from my wise posts ... Re: waffle pod slab and concrete "apron" 3Jun 20, 2013 1:49 pm Thanks for the reply Lex, I don't have the siting plan back, but it will be under 150mm to boundary. Our block has a gentle slope across from south to north and a bit more of a slope from east to west up the block (east frontage) I only have the engineering plans in the contract and can't make out the exact figures but its not much. I know the east/west rise is about 400mm over the 32m, not sure about the south/north although it seems like it would be less than half just eyeballing it! Where our house it going to sit is quite a flat spot and there is no fill. We are expecting to put in a small retaining wall at the rear but aren't anticipating needing one on either side at this point. Re: waffle pod slab and concrete "apron" 4Jun 25, 2013 7:26 pm 400mm over 32m looks like a flat block. One thing - if there are no obligations to build the retaining wall by the council or anyone else, and if that does not negatively impact the neighbour on that side, I'd always leave the natural fall as is if possible. That small fall is ideal, I wouldn't want to completely level my land. My signature is distracting people from my wise posts ... Re: waffle pod slab and concrete "apron" 5Jun 26, 2013 2:14 pm Thanks Lex, Most of that 400mm is at the rear 5-7m hence the likely need for a small retaining wall to make the backyard useable for the kids. Aprat from that we're all for leaving as is. So should there be any extra precautions taken with slab design where the slab sits close to the boundary to compensate for lack of concrete surround? s few deeper piers or something? Or should it be ok? The Soil classification has little to do with piers. The purpose of the classing of the soil is to identify the clay content and the "average expected range of movement… 2 9853 You are correct. Just read through all the ncc rules and 75mm is the minimum requirement for me. 4 11177 The concreter will take and reuse. In my case I bought structural LVLs and scraped them back and used them as joists. 1 5152 |