Make surface smooth/flush for tiling mosaics

[spiidey]

We're halfway through tiling a combination of mosaics and ceramin tiles.

In the picture below, along the vertical strip of blue masic, the wall drops back about 2-3mm from left (of blue mastic line) to right (of blue mastic line).

What is best way to smooth this out, so that we have a flat, flush surface to tile on? The tiles going around that blue area will be a continuation of the mosaics therefore we need the surface to be as flat as possible.

We need the surface to be brought forward 2-3mm from the blue mastic line, to the adjacent wall on the right hand side (about 2 feet away therefore need to smooth out an area approx 8 square feet)

[IMG=http://img34.imageshack.us/img34/177/9xdv.JPG][/IMG]

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[AdamCH]

Put your mosaic tiles in last. Use a deeper notched trowel on the right to build the surface and a long straight edge to keep everything flat.

When the main tiles are in. Make a scraper from a piece of ply with notches each side so that it rests on each side of the area to me covered on mosaic and use it + adhesive to get the mosaic area level at the correct depth, then place your mosaics.

Having said that, coping with different surface levels may be more difficult than you expect and you may want to get a tiler in.

 

[spiidey]

Put your mosaic tiles in last. Use a deeper notched trowel on the right to build the surface and a long straight edge to keep everything flat.

When the main tiles are in. Make a scraper from a piece of ply with notches each side so that it rests on each side of the area to me covered on mosaic and use it + adhesive to get the mosaic area level at the correct depth, then place your mosaics.

Having said that, coping with different surface levels may be more difficult than you expect and you may want to get a tiler in.

Thanks for this.

I was thinking of building up the area first of all by using e.g. a fine surface filler such as this product:-

http://www.screwfix.com/p/no-nonsense-fine-surface-filler-600g/71551

Or just simply tile adhesive:-

http://www.tilefixdirect.com/product/BAMFBW5?gclid=CJyfpLq3h7oCFQTHtAodUgoA1Q

And then once this was dry, sanding so the surface was flat (checking it was flat by using a straight edge), priming using pva and then tiling onto that.

Would that work or not?

 

[spiidey]

Anyone help with this?

 

[AdamCH]

Use tile adhesive.

Don't sand - use the notched ply to scrape it to the correct level before it's dry (doesn't need to be perfect).

Don't use PVA it will interfere with the adhesive bond. No need for any primer if you use tile adhesive for the levelling.

Always best to use bagged cement based adhesive rather than the ready mixed stuff.

 

[spiidey]

Use tile adhesive.

Don't sand - use the notched ply to scrape it to the correct level before it's dry (doesn't need to be perfect).

Don't use PVA it will interfere with the adhesive bond. No need for any primer if you use tile adhesive for the levelling.

Always best to use bagged cement based adhesive rather than the ready mixed stuff.

Thank you.

Yep have got the cement based adhesive so will use that.

What is a "notched ply"?

So its ok to apply adhesive, roughly get a level surface, let adhesive dry and then tile at that point (i.e. the adhesive for the tiles will stick to the adhesive already on the wall, and we won't end up with any tiles coming loose)?

 

[AdamCH]

Notched ply is a piece of ply wood (or anything else that's handy) with notches cut into the corners. The notches rest on the main tiles and are cut to the correct depth so that when you scrape it down it levels the adhesive to the right depth below the main tiles.

Cement will stick to cement without any problems.