||03-24-2007 07:29 PM
Originally Posted by rb_in_va
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:
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.....'