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re: Tile underlayment for cement slab?
Posted on 4/12/18 at 9:17 am to TDsngumbo
Posted on 4/12/18 at 9:17 am to TDsngumbo
You're going to be chiseling it off more than scrapping. Wet it and wait 30 min before getting on your knees with the hammer drill and going to town. Wet is the key to keeping the dust down to a manageable level, if not, you will have dust in every cabinet and crevise known to man forever. Me and my helper spent 28 hours on the hammer to get mine up. 300 sq ft shouldn't take but half the morning.
0
Posted on 4/12/18 at 2:56 pm to TDsngumbo
Goodness, lot of bad advice in this thread.
Just rent a damn hammer drill. Should cost $100-140 for a couple of days. 300 sq feet is around 15 hours of work I'd say to get it almost perfect.
If you rent from many companies like Suncoast rentals you can rent on friday or saturday and they are closed on Sundays or the weekends so you get an extra day or 2 free. So look elsewhere outside of Home Depot and Lowes first.
Make sure you get the thinset blade and the regular chisel blade.
DO NOT SMASH THE TILE FIRST WITH A HAMMER.
You want to chisel the tile from a very low angle first, because that's how you get the thinset up with the tile. If its adhered really well, well then do whatever. But if smash the tile with a sledge or something first, the thinset will likely not come up also. Getting the tile up in as big as pieces as possible is the best way to make the job easier.
Yes wet the thinset once tile is up to prevent dust.
ETA: If its mostly open space, get the hammer drill/ jackhammer on the cart. Its like a $20-50 upgrade but it makes the physical work 3 times easier. The cart does all the heavy lifting. They aren't good for small rooms and like hallways though as you need room to maneuver.
Just rent a damn hammer drill. Should cost $100-140 for a couple of days. 300 sq feet is around 15 hours of work I'd say to get it almost perfect.
If you rent from many companies like Suncoast rentals you can rent on friday or saturday and they are closed on Sundays or the weekends so you get an extra day or 2 free. So look elsewhere outside of Home Depot and Lowes first.
Make sure you get the thinset blade and the regular chisel blade.
DO NOT SMASH THE TILE FIRST WITH A HAMMER.
You want to chisel the tile from a very low angle first, because that's how you get the thinset up with the tile. If its adhered really well, well then do whatever. But if smash the tile with a sledge or something first, the thinset will likely not come up also. Getting the tile up in as big as pieces as possible is the best way to make the job easier.
Yes wet the thinset once tile is up to prevent dust.
ETA: If its mostly open space, get the hammer drill/ jackhammer on the cart. Its like a $20-50 upgrade but it makes the physical work 3 times easier. The cart does all the heavy lifting. They aren't good for small rooms and like hallways though as you need room to maneuver.
This post was edited on 4/12/18 at 2:58 pm
Posted on 4/14/18 at 10:35 pm to TDsngumbo
I did about 500 square feet not too long ago. I picked up a roto hammer from harbor freight for about $70 bucks on sale (Bauer - Item#63434) and it got the tile up really easy. After that I used it to chip away some of the thin set that remained. Then I took a grinder and a diamond grinder blade that I also bought from harbor freight and it took whatever was left off in no time at all. Had I known how good that would work, I could have spent a lot less time chipping away with the roto-hammer. It made a ton of dust that was very fine and even got in the cabinets. It was a pain to cleanup but the floor was very smooth.
Posted on 4/15/18 at 12:09 am to TDsngumbo
Electric hammer with wider blade has worked well for me also. For stubborn thinset adhered to concrete I've also rented a rotary floor type grinder that has carbide teeth. Home Depot has them, it spins relatively slow, but does create some dust. The grinder works wonders and is easy on the back.
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