Clean Dirty Concrete Subfloor for Eng. Gluedown?

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  #1  
Old 05-18-08, 08:35 PM
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Clean Dirty Concrete Subfloor for Eng. Gluedown?

Hi!

After scouring all the links on the web for information, I need some confirmation that my plan will be adequate.

I have a dirty subfloor! see below.





I hace been scraping it up with an 8" stand up scraper but don't think it's having much effect in, ie stays the same color, only paint and carpet pad is coming up.

What should be my approach before I start patching (thanks for the sticky post above)?

1) Continue scrapping the daylights out of the floor?
2) Rent a floor buffer and sand it all down?
3) Use an etching cleaning compound?

Thoughts/comments?

Thanks!
 
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  #2  
Old 05-19-08, 01:47 PM
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Your title indicates you will be installing an engineered floor, right? They aren't glued down, just glued to each other. The entire floor floats and you install a foam backer under it to take up the slight aberrations of the floor. Now, if you have big floor problems, you may need to float it with floor floating compound in liquid form to obtain a flat surface.
 
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Old 05-19-08, 03:34 PM
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Thanks for the reply Chandler!

I want to glue down the engineered floor to avoid the annoying (to me) hollow click that a floating floor provides.

The flatness is not too big of a deal, there are only about 4 small low spots I have to fill in.

I am just concerned about the glue bonding to the garbage called my subfloor!
 
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Old 05-19-08, 03:42 PM
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It would be ill advised to glue down a floating floor. Since you cannot refinish engineered floors, it will probably need replacing within 10 yrs. Do you really want to try and bust that glued down floor back up?

Get a 3-1 underlayment with the sound deadening properties, they work.

Does the manufacturer state you can glue DOWN the floor?
 
  #5  
Old 05-29-08, 06:16 PM
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Who says you have to float an engineered? There are some engineereds that the manufacturer deems not suitable for a floating application. Some engineereds are gluedown only.

It does look like black cutback asbestos adhesive residue. Don't think I'd be sanding that!!
 
  #6  
Old 05-30-08, 08:12 AM
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doh.

Well hopefully the pictures serves as a reference for others.

Thought I was safe from that stuff since the building was redone in 1987.

The floor I purchased can be refinished a few times as per the manufacturer.

Thanks for the help all, and let's hope I don't regret it too much down the line...
 
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