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Tile Adhesive, Cement (Tile Mud)
Tile Adhesive / Grout Advice
Old question but still confused....
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[QUOTE="JimboD, post: 915888"] I’m tiling a 90m2 area with 600x600 limestone tiles, 12mm thick. The base is a poured screed (very level) which also contains the underfloor heating pipework. I appreciate I need a 100% coverage with the adhesive. I appreciate that the round notched trowels give better coverage (primarily as they leave more adhesive on the floor) From what I read, some folks state you need a 20mm round notch. What I am confused with is the size of the notches required to achieve a solid bed. I watched a really interesting video that highlighted how what is more important is the orientation of the adhesive ridges and how having straight lines are important rather than having wavy lines – if you bed the tiles in by moving from side to side perpendicular to the ridge lines they close up and create a solid bed (and don’t if you have wavy lines or grooves running parallel to the bedding motion) So, with this in mind, why does the bed need to be so deep? 20mm round ridges must compress down to about a 10mm bed so uses a huge amount of adhesive. In my situation, I have to ensure the tile bed is not too deep as they run up to a bifold door (ideally I need 3-4mm). So, my question is… Why wouldn’t a 10mm round (or square) notch, with grooves laid perpendicular to the tile bedding movement suffice in creating 100% coverage (especially if back buttered)? Second question…. In my mind, there seems to be a disconnect associated with the thickness of the bed that is left vs what people are claiming. The maths doesn’t make sense. For example, a 10mm notched trowel is claimed to leave a 3-4mm bed, but how is that possible? Imaging cutting the top 5mm off the top of each 10mm ridge and laying it in the 10mm deep groove next to it. You’d end up with a 5mm level base. So where does 3-4mm come from? The rounded trowels leave more material behind so would be even deeper, say 6mm for a 10mm trowel. Can anyone please help clarify things for me so I know what the best approach is. It would be much appreciated! Cheers [/QUOTE]
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Forums
Tile Adhesive, Cement (Tile Mud)
Tile Adhesive / Grout Advice
Old question but still confused....
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