Shane T
Member
I have done very little tile installs and need some info. Going to help my son do the floor in a bathroom that had a glued down vinyl. Apart from scraping up the remaining glue what else do I need to do?
Preparing a concrete floor for ceramic tile install
- Thread starter Shane T
- Start date
Dolly Llama
Number 5
if clean (meaning no paint or old glue) and no cracks in the pad, I don't think you need anything, Shane
that's guidance we got from a flooring pro
we rented a floor scrapper too.
it was still a b1tch
..L.T.A.
Last edited:
Taking up sheet floor sucks bananas. It might been easier with a floor scraper, not a scrapper.
Years ago while prepping a floor for vinyl we had to bust out some tile. We stopped for a break and the cat came in. He came over and was sniffing around the machine. Steve hit the switch. I had no idea cats could fly but that one cleared the room in one leap and instant air time.
Cleanworks
Moderator
Level the floor. Sometimes need to rent a grinder or use leveling compound to get an even surface.
Shane T
Member
We'll scrape it good but I assume there will still be glue "in" the concrete. Will that be a problem with adhesion of the mastic?
It is level and no cracks.
KevinD
Member
You said mastic. You are going to use thinset? Correct?
Shane T
Member
Yes, modified thin set is what was recommended.
Dolly Llama
Number 5
I only know enough to be dangerous, Shane.
we've only done maybe a couple dozen ceramic installs in kitchen and bath remodels, and only a few of those were over slab.
I don't know if there's anything in vinyl glue that will cause thinset glue to fail, but I highly doubt it ...and in particular what may have been "absorbed" on the molecular level
I do know one of the ceramic floors we installed over slab 15 years ago still looks dandy and in sound condition
EDIT to add
I also know every one of those slabs that had vinyl down for years was a PITA to scrape clean.
Willy, we scraped and scrapped the old vinyl
..L.T.A.
Last edited:
