Browse Forums Paving & Concreting 1 Nov 19, 2011 10:16 pm Hi guys, I'm in the process of replacing a paved patio with a slab. I've removed the pavers and excavated the area, with the intention of the new slab being the same height as the old paved patio. Only today (and I don't know how I missed this) I've noticed that the old pavers actually covered the weepholes along that wall of the house, and so the slab will too. The slab is due to be poured Monday, so I don't have time to take another 75mm out of the area. One solution that was suggested to me was to leave a gap between the slap and the wall of about 40mm, the bottom of that being lower than the weep holes. The channel could be sloped for run off and directed into a drain which is at the far end of a wall, and be filled with pebbles that match the concrete so it didn't look too naff. One issue would be the channel filling with water off the slab and making it's way into the house that way, but it's pretty unlikely I think - the area is covered and rarely gets wet, and the slab will be sloped away from the house in any case. What are your thoughts? Would it work, or should I cancel the concrete truck and get the mattock back out? Thanks guys. Re: New slap height vs weep holes 2Nov 19, 2011 11:21 pm bozo Hi guys, I'm in the process of replacing a paved patio with a slab. I've removed the pavers and excavated the area, with the intention of the new slab being the same height as the old paved patio. Only today (and I don't know how I missed this) I've noticed that the old pavers actually covered the weepholes along that wall of the house, and so the slab will too. The slab is due to be poured Monday, so I don't have time to take another 75mm out of the area. One solution that was suggested to me was to leave a gap between the slap and the wall of about 40mm, the bottom of that being lower than the weep holes. The channel could be sloped for run off and directed into a drain which is at the far end of a wall, and be filled with pebbles that match the concrete so it didn't look too naff. One issue would be the channel filling with water off the slab and making it's way into the house that way, but it's pretty unlikely I think - the area is covered and rarely gets wet, and the slab will be sloped away from the house in any case. What are your thoughts? Would it work, or should I cancel the concrete truck and get the mattock back out? Thanks guys. Sounds fine. The slab would need a fall too, away from the wall. If you had time you could fit a stormtech drain in between as well. But I think it will be fine. Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: New slap height vs weep holes 3Nov 21, 2011 7:43 am Personally I would cancel and get the level right first. Re: New slap height vs weep holes 4Nov 21, 2011 9:32 am chrisandkate Personally I would cancel and get the level right first. True that is preferable. But if we were setting a bifold door to be level with a slab, then a drain in front would be adequate, and that is what the OP would have, a fall away from the wall and a drain. Should be fine... Ed "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 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 7063 I know foam has been around since the 90's and CSR started manufacturing Hebel in 1989, so it's definitely possible 5 5405 You are correct. Just read through all the ncc rules and 75mm is the minimum requirement for me. 4 11117 |