Wood floor adhesive removal

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Old 09-17-18, 03:37 PM
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Wood floor adhesive removal

Hi folks:
I recently have been asked a question and would like some input in order to form a answer. Some friends have removed a wooden floor that was glued to a concrete slab. They now want to lay a new floor (not floating) but there seems to a a fair amount of the old wood floor adhesive on the concrete. I have been asked for suggestions to remove that. Don't like the liquid adhesive removals as the fumes will really kill you!
Thought of heat guns and scrapers but they have the same fumes problem. Have heard about vinegar(?) and a scraper. Has anyone heard\tried that ? Hot water? Sanding (mask \dust )
I suggested to just put a vapor barrier over it as that will have to be glued but ..... The people doing this are new homeowners and have a BIG learning curve ahead.
Any suggestions appreciated.
 
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Old 09-17-18, 03:39 PM
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A good razor scraper is generally all you need. Heat only makes it more gummy. No easy way around it, it's hard work.
 
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Old 09-17-18, 03:54 PM
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XSleeper: Thanks for the quick reply. Just as a further thought, After using the razor any treatment to the concrete necessary to remove residue?
 
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Old 09-17-18, 04:14 PM
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Not normally. But we don't know anything about the next floor... I have to assume it will be another glue down floor?
 
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Old 09-17-18, 04:36 PM
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Yes, I am told that it will be another glued floor. Just for my own curiosity. I always believed that there should be a vapor barrier over concrete. Is there a exception to the rule?
 
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Old 09-17-18, 04:49 PM
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If it previously had a glued floor, I would assume it already has one. But if the floor adhesive is no longer adhering very well, it might need a new vb.
 
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Old 09-17-18, 05:38 PM
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Thanks for your help and guidance.
 
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Old 09-17-18, 07:53 PM
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Anything you apply to try to remove the current old glue will impede the adhesion of the new glue you are trying to put down. So, no chemicals. The slab should have a VB underneath it. But seems to me, some of these high tech glues also work as a vapor barrier, so look into that. There are also barriers like Redgard which is a popular undercoating for tile, and can be used in flooring applicaions. But to your original question, scrape the high spots and move forward.
 
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