Browse Forums Bathrooms and Laundry 1 Dec 23, 2015 5:23 pm Hello All! I am new to the forum and I was wondering if anyone can give me any advice... My apologies if this is not the right forum, but I try anyway I am in the middle of bathroom renovation and after having ripped off the old tiles and digged the all area in order to install new drains, it is time to re-patch with a new concrete slab (small bathroom and all old concrete came out). my questions are: - is 10 cm concrete slab deep enough? - I have noticed that the old concrete slab was poured on top of sand (in Perth there is only sand LOL) (I come from Europe and there you would put tar paper to avoid humidity and water coming up form soil - not sand there ... would you recommend to pour the concrete on top of sand or put a layer? - would you "connect" concrete slab to perimetral wall or again you would space them with some tar paper (this is done in Europe to avoid humodity and water coming up from groud gets in the floor - with tar paper will stay only in the walls...) - the old concrete slab does not have mesh, would you put it in? - how long should I wait before to proceed? many thanks in advance for any help! Regards Ivan Re: Bathroom Tiling-Concrete Slab: just pour it on top of sa 2Dec 23, 2015 6:57 pm Hi mate im no concreter but have been a plumber for 20yrs and the 12 yrs of that doing new houses over east side of oz. From what i have seen concreters over there used black plastic over there pads, footings, and always use reo mesh in house slabs. Im in wa and they must have different concrete and and pads here as ive never seen any mesh in slabs here that is where im working in the building game You want piece of mind do it your way and 100 mm slab is standard sorry 10cm☺ Re: Bathroom Tiling-Concrete Slab: just pour it on top of sa 4Dec 23, 2015 8:41 pm traveln Hi mate im no concreter but have been a plumber for 20yrs and the 12 yrs of that doing new houses over east side of oz. From what i have seen concreters over there used black plastic over there pads, footings, and always use reo mesh in house slabs. Im in wa and they must have different concrete and and pads here as ive never seen any mesh in slabs here that is where im working in the building game You want piece of mind do it your way and 100 mm slab is standard sorry 10cm☺ Thanks travelIn, that is my confusion, should I or should I not put a black plastic (in Italy we definitely use tar paper) to cover sand and pour concrete on top or should I just pour concrete un top of compressed sand? A mate of mine told me that WA has mainly sand (not soil) and for this reason you don't need any tar paper/back plastic to stop humidity to come up from the ground (being sand, water just goes down). For the mesh, I do not think it will harm to put it in any additional thoughts? Many thanks! Re: Bathroom Tiling-Concrete Slab: just pour it on top of sa 5Aug 24, 2017 12:04 am The process is compact sand, apply termite barrier, install black plastic as moisture barrier then pour 100mm slab with reo-mesh sheeting. Allow 5 days to dry then screed. I'm putting a new floor in my kitchen, slate flagging on a standard concrete slab. I have allowed for a bed thickness of up to 20mm to accommodate the different… 0 17824 2 4563 2 10162 |