Browse Forums Flooring & Floor Covering 1 Oct 13, 2015 11:29 am Hi All, We are building a new house with a project home builder and have selected 600m x 600m Italian Matt porcelain tiles for the main living areas. We are paying extra to lay large format tiles. Some parts of our living areas have under-tile heating. We have been told that only the wet areas will be screeded and the slab should be level enough to lay 600x600 tiles. My questions are 1) Is it correct the slabs should be OK to lay 600x600 tiles without screeding. 2) Is it possible to do this when we have floor areas with under tile heating adjacent to floor without hearing? 3) Does screeding improve the durability of the tiles? 4) Is there any building codes that deal with lipping? Given the amount of money we have spent on upgrading the tiles, I want to make sure the end result is worth the spend. Any thoughts/suggestions would be very welcome. viewtopic.php?t=78985 Re: Screeding question 2Oct 13, 2015 12:24 pm Interested! BTW my friend just layed some 300x600 porcelian tiles in my granny flat and the screeding made a big difference to the surface and quality of the tiled floor. He also only used a small amount of tile glue (about 5mm) and the tiles are tightly stuck to the screeded Floor. In my opinion screeding should be standard as a bare bones slab is not smooth at all. This is true for outdoor slabs which I've seen and they leave it so rough. build thread: viewtopic.php?t=78328 Orpheus Building the Metricon Glendale 38|Sydney Re: Screeding question 3Oct 18, 2015 10:05 am I agree with Orpheus, just had tiles and bamboo laid in my house and all wet areas have screeed for drainage as you point out. Although we did bamboo for the rest of the house and not tile I believe the principal is the same. The layers said that the floors should be level regardless of product for the best finish and so screed should be applied where required. Our floor required one small section in bedroom 3 where there was a 3mm difference. They said our floor was the most level they had ever put flooring on and we were rapt with that comment, we're on joist and bearing construction . My take home message was all flooring should be on a level surface. Custom build Northern NSW viewtopic.php?f=31&t=72217 Re: Screeding question 4Oct 18, 2015 11:34 pm Hi Franky, 1. Generally I would say a concrete slab can be good enough without screening. However the concrete lord must be aware that a tile finish is expected and prepare the slab appropriately. There are various Australian Standards for concrete and the flatness required for a tile finish. Let them know you need it to meet these standards. Sorry I don't know these off the top of my head. If the slab is too un-level a self leveling compound maybe used also. 2. I would expect so, maybe an expansion joint will be needed. Speak with you builder an tiler regarding this. 3. A screed is used to create a fall in wet areas. Has little to do with the durability of tiles. 4. Lipping? Not sure what you mean here, but I am going to take this as tolerance between two floor finishes. If they are not level will create a lip and a trip hazard, dirt trap and general problems. I am not sure if any thing deals with this at the domestic level. There is a guide for building tolerances. It maybe be noted within this. http://www.vba.vic.gov.au/__data/assets ... s-2007.pdf Generally you may find this a useful guide also http://www.saiglobal.com/Information/St ... oducts.pdf HACK architecture Www.hackarchitecture.com.au Re: Screeding question 5Oct 19, 2015 12:06 am dkidston However the concrete lord must be aware that a tile finish is expected and prepare the slab appropriately. Lol good luck Creator of superduperonium, expert at expert things, nobel laureate, can hold my breath for 10 minutes. Re: Screeding question 6Oct 19, 2015 12:22 am Lol Bloody iPhone autocorrect. That should say "concreter" HACK architecture Www.hackarchitecture.com.au Re: Screeding question 7Oct 19, 2015 7:48 am dkidston Hi Franky, 1. Generally I would say a concrete slab can be good enough without screening. However the concrete lord must be aware that a tile finish is expected and prepare the slab appropriately. There are various Australian Standards for concrete and the flatness required for a tile finish. Let them know you need it to meet these standards. Sorry I don't know these off the top of my head. If the slab is too un-level a self leveling compound maybe used also. 2. I would expect so, maybe an expansion joint will be needed. Speak with you builder an tiler regarding this. 3. A screed is used to create a fall in wet areas. Has little to do with the durability of tiles. 4. Lipping? Not sure what you mean here, but I am going to take this as tolerance between two floor finishes. If they are not level will create a lip and a trip hazard, dirt trap and general problems. I am not sure if any thing deals with this at the domestic level. There is a guide for building tolerances. It maybe be noted within this. http://www.vba.vic.gov.au/__data/assets ... s-2007.pdf Generally you may find this a useful guide also http://www.saiglobal.com/Information/St ... oducts.pdf HACK architecture http://Www.hackarchitecture.com.au Thank you for your detail response. I will read the links you've sent viewtopic.php?t=78985 You can really use anything you want the main consideration would be how it looks once painted/finished - or the look you want. Cabinetmakers use MDF because its cheap… 2 9959 I would say both styles you have pictured are steel. The lower chord of the first pic would be a massive lump if made using timber considering the size of the rafters. 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