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Old 10-25-2014, 12:48 AM   #1
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Floor level prep


This project has been giving me headaches. so basically, i would like to put down new floors. originally i was going to glue down LVP, but the more i look at my floors the more i realize they are not flat at all. so my new plan now is to float engineered wood/lvp

so right now in one room i have vct glued down directly to the wood subfloor, 2nd story. it's fairly flat throughout the middle but in the 4 corners the floor bumps up quite a bit. i didn't take exact measurement but i would say a good 3/4 inch higher. now normally you can just sand down the bumps, but the vct tile and the adhesive probably have asbestos so i would like to lay the new floor on top of that without sanding it, etc.

so how do i make this floor flat? i been reading and the more i read the more confused i get. some say to use shingles, some say to use roofing felt, some say to emboss the whole floor, some say SLC, some say patch it with feather finish and feather it out gradually. i was thinking of laying down new plywood over the entire floor, and sand the plywood down where the bumps are underneath so it's level with the rest of the ply.

please help!
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Old 10-25-2014, 09:56 PM   #2
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ok let's rephrase the question. how do you make a vct tile floor flat without sanding it down?
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Old 10-25-2014, 10:47 PM   #3
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What's under that flooring?
Basement, crawlspace?
I'd be trying to figure out what caused that drop.
Not going to do any good to install a new floor over failing joist.
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Old 10-25-2014, 10:54 PM   #4
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hey joe!
this is on 2nd floor. below this tile floor is downstairs where kitchen is. because of the tiles i cant really tell where the joists are...
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Old 10-29-2014, 12:37 AM   #5
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You need to put that tile down first because you have to make a plane surface over it. Applying plywood over whole room is the best option, it will help you to hide bumped flour correctly.
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Old 10-29-2014, 01:40 PM   #6
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Quote:
Originally Posted by RobertCurry View Post
You need to put that tile down first because you have to make a plane surface over it. Applying plywood over whole room is the best option, it will help you to hide bumped flour correctly.
what do you mean put the tile down first??
the issue with putting new ply down is the existing floor isnt flat so i need to fix that first
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Old 10-29-2014, 03:10 PM   #7
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Peal off the tiles in the high areas---they are asbestos based--so wet them down first--then peal them off with a bent scraper or whatever tool you have--

then see why the flooring is so much higher in the center.
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Last edited by oh'mike; 10-29-2014 at 03:13 PM.
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Old 10-29-2014, 03:54 PM   #8
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Quote:
Originally Posted by oh'mike View Post
Peal off the tiles in the high areas---they are asbestos based--so wet them down first--then peal them off with a bent scraper or whatever tool you have--

then see why the flooring is so much higher in the center.
yikes i was hoping you wouldnt say that. i think its because the joist is right below where the bump is, and maybe the nail has come loose

i mean its just in the 4 corners of the room...can i feather it out? or put new plywood down and sand the plywood to make it level with rest of plywood
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Old 10-30-2014, 06:27 PM   #9
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Have you tried adding some screws to the corners to see if the ply will pull down?

Your choice is to lower the high places or raise the low places---how you do that depend on the new floor covering--
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Old 10-31-2014, 02:09 AM   #10
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Quote:
Originally Posted by oh'mike View Post
Have you tried adding some screws to the corners to see if the ply will pull down?

Your choice is to lower the high places or raise the low places---how you do that depend on the new floor covering--
no thats a good idea i need to try!
i am hoping to lower the high places because its mostly just in the corners.

the best choice is to have you come and do it
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Old 10-31-2014, 06:14 AM   #11
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I need a vacation---but I will be leaving the tools home when that happens.
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Old 11-03-2014, 02:46 AM   #12
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Quote:
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I need a vacation---but I will be leaving the tools home when that happens.
heh thats a good idea!
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Old 11-08-2014, 06:54 PM   #13
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This advice is 99% correct. Always take precautions when removing VCT.

If the tile is 9 inches square .. it is almost guaranteed to have asbestos in it.

If the tile is 12 inches square .. it's VERY unlikely to have asbestos in it.

Hope that helps with your uncertainty regarding pulling up the tiles.

Good luck with your project.
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