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Old 10-19-2007, 10:50 AM   #1
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Concrete floor over tile


I've got a 2000 sq ft building -80ft x 20ft- that has old asbestos tile which is loose in some places and covered with linoleum and carpet in others. I am removing all the walls -no load bearing- so that I can pour 2 inches of concrete over the problem.
Questions:
- Do I need to glue down or remove any tiles that are easily liftable ?
- Where there is old carpet and linoleum glued on top of the old asbestos tile -I will rip that up, but do I need to worry about removing the old mastic left on top of the tile ?
- Any preparation of the old service - just a good mopping ? I heard about a latex primer -is this product specific to concrete ?
- Should I make sure the concrete is of any particular mix or makeup to insure a smooth and stainable surface ?
Thanks..

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Old 10-19-2007, 02:44 PM   #2
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I'd remove anything and everything that's loose from the floor.

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Old 10-19-2007, 10:02 PM   #3
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Concrete floor over tile


remove everything loose and pressurewash if possible so the surface is clean of grit and will be able to adhere fully
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Old 01-27-2008, 04:48 PM   #4
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If you have asbestos under the lino or carpet, removing it may cause the asbestos to become airborne. Asbestosis is a life threatening, lung destroying disease. You must hire a licensed asbestos abatement contractor to remove it. I am sure that it is a state law unless you live outside of the USA. By removing it yourself, you put yourself and your neighbors at risk.
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Old 01-27-2008, 09:19 PM   #5
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That`s Why We Said To Only Remove Loose Stuff,and Pressurewash,as Water Keeps It From Becoming Airborne,----ny Is The Strictest With Asbestos,other States Don`t Seem To Care At All,you From Ny,or The Tri-state Area(ny,nj,pa)??
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Old 01-28-2008, 05:30 AM   #6
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Concrete floor over tile


Everyplace you pour concrete that is on this "other" floor covering, it will fail. 2 inches isn't much, and needs to have a full contact bond with the floor under it. There are products out there for floor leveling, and some, like one put out by US Gypsum, is even spec'ed for wooden floors, but they still have bonding and cracking problems.

I don't know what your budget is, but you should consider having this done the right way.....I have seen asbestos tile removed with a power scraper that "washed" the area as it peeled it up, and they simply placed it in barrels....no dust. After it is gone, you can rent a scarifier for the floor, and have a masonry based leveler or gypcrete applied.
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Old 01-28-2008, 10:18 AM   #7
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That`s Why We Said To Only Remove Loose Stuff,and Pressurewash,as Water Keeps It From Becoming Airborne,----ny Is The Strictest With Asbestos,other States Don`t Seem To Care At All,you From Ny,or The Tri-state Area(ny,nj,pa)??
I'll yield to your expertise as you are a professional and I'm not, but if it were my house I wouldn't place my health at risk. Even removing the loose bits can make any asbestos airborne. At the very least I would seal the room with plastic sheeting, wear an OSHA approved mask, gloves, Tyvek suit etc, and dispose of material properly.
I am originally from NJ, but now living in north Florida. In forty years working in emergency and critical care medicine I have seen patients with asbestosis in the final stages-not a pleasant way to die. My motto has always been "Err on the side of caution."
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Old 01-28-2008, 11:53 AM   #8
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You guys are hilarious.

WHY are you responding to a post that was made more than three and a half months ago and by a guy that never returned and a guy that thinks a 20 ' X 80' building equals 2000 square feet of floor space?

Now THIS is entertainment!
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Old 01-29-2008, 05:35 AM   #9
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Good catch...I usually don't fall for that either...must be the insomnia.
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Old 01-29-2008, 06:22 AM   #10
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Originally Posted by Bud Cline View Post
You guys are hilarious.

WHY are you responding to a post that was made more than three and a half months ago and by a guy that never returned and a guy that thinks a 20 ' X 80' building equals 2000 square feet of floor space?

Now THIS is entertainment!
Glad you liked the show. We'll be here all week ....
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Old 01-30-2008, 04:13 PM   #11
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Don't feel bad...I get caught every so often also and I usually get my chops busted for it too.

Now let's see:

20 X 80 = 2000
16 X 3 = 49-1/2
2 + 2 = 9
19.2 X 5 = 100

OK I got it this time.
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Old 01-30-2008, 04:25 PM   #12
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Concrete floor over tile


let`s just say some things we don`t pay attention to,and it`s boring sometimes
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Old 08-24-2012, 01:13 PM   #13
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For those of us who are new and wondering the same thing Thanks for the responses! I want to err on the side of caution and my mother is getting involved, saying to concrete over it and try to save money…I'd rather be cautious and healthy (and not try to save a buck when it comes to this)
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Old 08-25-2012, 06:45 PM   #14
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Quote:
Originally Posted by PenelopeNY View Post
For those of us who are new and wondering the same thing Thanks for the responses! I want to err on the side of caution and my mother is getting involved, saying to concrete over it and try to save money…I'd rather be cautious and healthy (and not try to save a buck when it comes to this)


Concrete it over,and it's just like throwing money out the window.

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