Browse Forums Renovation + Home Improvement 1 Jan 10, 2021 6:30 pm Hi All, We are renovating and getting the floor re tiled. We just finished removing all the tiles and were left with adhesive everywhere. Our tiler advised that he will remove the big ones using jackhammer and angle grinder. He will then use self levelling compound to smoothen the surface and patch up the concrete My question is, is this the right thing to do? As in do i need all the floor to be polished or grind? Or will the self levelling will cover the old tile adhesive? Also we cant screed because with the minimum thickness of 2cm, screed and tile will raise the floor level above the main door frame Thanks!! Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Floor Tiling 3Jan 10, 2021 7:22 pm Berek Sounds correct. If it doesn’t come up with grinding then it’s there for good. Surface prep is the key. Re: Floor Tiling 6Jan 10, 2021 10:43 pm It kind of looks like the tiles have lifted but has left the adhesive stuck to the slab. You really need to strip back to the original concrete. You need a smooth flat level and sound surface to attach the tiles too. You normally use a floor stripper to get up most of the adhesive, then grind off all remaining lumps until you are back to the bare concrete and finally fill any bad gouges from the tile removal. Once you have a sound, solid a level surface you can proceed with tiling. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Floor Tiling 7Jan 11, 2021 7:16 am Thanks, i ll see what the tiler says today. To get rid of all the adhesive seems impossible without a proper tool. And he s only by himself with me occasionally helping. Im extremely nervous cant afford them to cut corners given all the mess Re: Floor Tiling 8Jan 11, 2021 8:44 pm chippy It kind of looks like the tiles have lifted but has left the adhesive stuck to the slab. You really need to strip back to the original concrete. You need a smooth flat level and sound surface to attach the tiles too. You normally use a floor stripper to get up most of the adhesive, then grind off all remaining lumps until you are back to the bare concrete and finally fill any bad gouges from the tile removal. Once you have a sound, solid a level surface you can proceed with tiling. He s sure its gonba be okay.. Cant argue back because we dont have the knowledge Re: Floor Tiling 9Mar 11, 2021 9:52 pm Hi All, the tiling job is now done (actually it was completed about 2 or 3 weeks ago). The result is quite decent although we have a few problems and hoping that we can get some feedback. The total area was around 140sqm; tiles are 600x600 non rectified porcelain tiles installed with 3mm spacers. Our questions are 1. We, by accident found some of the tiles are drummy / hollow (found them while cleaning the tiles). There are in total about 25 tiles that we know of. Is this a problem that need to be rectified sooner than later? I know that they will eventually crack; but we are quite disappointed to find out 2. Given the tiles and the spacers; we could see that some tiles under certain angle do not look as seamless as we would like them to be. Is this normal for non rectified tiles with relatively wide space between them? Note: we did not screed as our tiler said it is impossible to screed because of our door opening (its aluminum frame so he can not just simply trim the door). Is screeding mandatory to achieve seamless look? Note: our tiler did assure us that he will ensure no lippage even without screeding (he used tile leveling system and will play around with the mortar); unfortunately there are lippages 3. Would it actually be possible to self level the floor using self leveling compound for 140sqm? Or is it just way to expensive? Our tiler worked really hard and we feel bad to tell him that we are not 100% satisfied with the result. So hoping to get some feedback here before we go back to him Thanks! Re: Floor Tiling 10Mar 25, 2021 2:28 pm Hi there, Qualified tiler here. Drummy tiles are definitely a problem and are a direct result of not screeding/poor screeding. What's happened here is that there are big dips in the floor (concrete is never level) and the tiler has used glue to level the tiles individually which will shrink and move a little as it dries. You may never have issued with your drummy tiles if you are very careful with them, but it won't take much to damage them. Don't be afraid to tell your tiler you're not happy if you're not happy. It is impossible to remove lippage from rectified porcelain unless the screed is perfect. Anyone who installs rectified porcelain without a screed should not be tiling. The spacers are a helpful thing, but they wont fix bad tiling. Your tiles can and should look straight, even and flat. Self-levelling compound only works for very small areas. It's basically very wet cement. Re: Floor Tiling 11Mar 25, 2021 3:00 pm Tiler Hi there, Qualified tiler here. Drummy tiles are definitely a problem and are a direct result of not screeding/poor screeding. What's happened here is that there are big dips in the floor (concrete is never level) and the tiler has used glue to level the tiles individually which will shrink and move a little as it dries. You may never have issued with your drummy tiles if you are very careful with them, but it won't take much to damage them. Don't be afraid to tell your tiler you're not happy if you're not happy. It is impossible to remove lippage from rectified porcelain unless the screed is perfect. Anyone who installs rectified porcelain without a screed should not be tiling. The spacers are a helpful thing, but they wont fix bad tiling. Your tiles can and should look straight, even and flat. Self-levelling compound only works for very small areas. It's basically very wet cement. Thank you for the detailed response. I have also received feedback that levelling clip should not be used to force level the tiles if the slab isn’t level. I have email trail specifically stating I want to screed but the tiler assured me everything is going to be okay I am considering re doing the entire place, which is not nice and i dont want my previous tiler to have anything to do with it. Not ideal because most are very busy and not taking job. Not to mention financial loss associated to it I m considering to get the exact same tiles they are non rectified (not due to price, rather because we like them, colour and pattern). Would non rectified tiles cause an issue for the installer? And can we have narrow grout joint? Thanks in advance CDC Housing Code 3 When to apply Floor Area external face of wall vs Gross Floor Area internal face of wall. Reading thru CDC Housing Code 3, lets take a lot 915sqm.… 0 16413 isn't a garage level with the rest of the house a given? pretty sure they 'came around' long time ago. if you have a flat block, the garage is usually level with the rest… 1 17413 Looking to tile the facade pillars rather than rendering. Builder is quoting 2500$ laying cost for upto 10msq. The 2 pillars come to be 16msq. So laying costs are 5000$… 0 7443 |