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Old 03-24-2007, 06:54 PM   #1
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do I need a vapor barrier?


I have vinyl peel and stick tile over a slab. Do I need to lay down a vapor barrier before I put down laminate flooring? The laminate already has a foam backing on it.

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Old 03-24-2007, 07:29 PM   #2
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do I need a vapor barrier?


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Originally Posted by rb_in_va View Post
I have vinyl peel and stick tile over a slab. Do I need to lay down a vapor barrier before I put down laminate flooring? The laminate already has a foam backing on it.
Pretty much all Laminate flooring installations instruct the use of a 4-6 mil vapor barrier or some other kind of appropriate vapor barrier, when laying the flooring product over a concrete surface.

Vinyl peel and stick will not make up an appropriate vapor barrier, as it does not serve a means of a 'continuous' separation type material between the concrete surface and a laminate floor product.

I would advise you to install a poly type vapor barrier. Tape any seams that arise during the installation process.

By the description that you have given of the flooring material you want to use, I would guess that it might be a 'Dupont' brand flooring. Whether it is or isn't you can can also review more information at this link:

http://www.diychatroom.com/newreply....wreply&p=38202

Note the instruction line on the link which states: 'If installing over concrete or a concerte floor covered by tile, you must lay down a 6 mil plastic sheet vapor barrier.....'

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Old 03-24-2007, 08:35 PM   #3
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do I need a vapor barrier?


I have vapor barrier, but it is in 10'X10' sheets and it's giving me problems. I just decided to cut the sheets into smaller strips to make it easier to work with.
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Old 03-27-2007, 10:20 AM   #4
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do I need a vapor barrier?


but you will need to overlap to make a proper barrier..
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Old 03-27-2007, 11:36 AM   #5
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do I need a vapor barrier?


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but you will need to overlap to make a proper barrier..
Overlapping is not a problem. Working with 11'X11' sheets of plastic in a 9' wide space with lots of nooks is! I guess I should have mentioned that.
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Old 03-30-2007, 09:23 PM   #6
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do I need a vapor barrier?


HA!

Would have been a good idea
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Old 04-02-2007, 02:12 PM   #7
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do I need a vapor barrier?


Just sent my son to stay with grandma and grandpa so I can work on the floor. It's moving right along now! I've got all the tricky nooks done. The nooks couldn't be on the right side of the room now could they?
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Old 04-05-2007, 10:45 PM   #8
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do I need a vapor barrier?


oh....of course not.....

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