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Ryan
Installing new tile backsplash over old adhesive on plaster

Hello experts,

Welcome to my 1st post! I have been rehabbing a 1927 home in Ballard, WA the last couple years. I am trying to do what I can myself and hire pros for the big jobs.

My current project is a kitchen remodel. I will have pros hang the cabinets and install the countertops but I figure I can tackle easier things like the tile floor and backsplash.

Last weekend we demoed the kitchen cabinets (big job - most look to have been built in-place) and now I am assessing the walls. All walls are still lath and plaster and with some patching and plaster washers will be good enough to keep - I don’t want to open a can of worms by taking down all the lath and plaster.

We popped off the old backsplash tiles and they left behind what looks like very thick adhesive. How do you recommend I prep the walls for the new backsplash tiles?

I can try a hand held razor scraper but I am worried about damaging the plaster. I have read you can use 1/4" cement board as a backer but how would I conceal the edges where there aren’t cabinets? Is there thicker tile edging that will accommodate a 1/4" backer? Maybe my best option is to remove the lath and plaster that has adhesive on it and replace with drywall?

Thanks for any suggestions, Ryan
 

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