Question about installing a Pergo flooring. When installing Pergo on a
concrete floor is there anything you have to do differently than
installing one on a floor with a sub floor made of wood? If the
concrete isn't perfectly level, is there a problem where a sub floor
made out of wood might compensate for it not being level? No give. The
concept of it being a floating floor with that sponge, does this cause
any problems with bunching if the floor isn't level? Any thoughts or
experience would be helpfully. Thanks.
There are several Pergos the regular one is not intended for damp
locations, Slab on grade brings up moisture even if not visable. Unlevel
is ok, bumps are not. Any moisture trapped will eventualy lead to mold
and smells. It all depends on your house.
I put down Pergo on a slab. According to the directions, you must do a
moisture check and the floor must be level to their spec. I seem to
remember 1/4" in 10' (use a long 2x3 to measure). The moisture check
consisted of taping a 1' square piece of polyethylene to the slab for 24
hrs. Moisture will collect on it if there is a problem. This maps
into putting down a moisture barrier, which I did even though I didn't
seem to have a problem. You must seal around the edges of the Pergo so
that spills don't run under the floor, causing it to crumble and bulge.
Check their web site and the directions on the boxes. We've been very
happy with the product. BTW: after you add up the glue, the
WhisperWalk, the shoe moulding, the threshold and step edge, the
cleaner, the tool rental and purchase of the tools that were missing,
the spacers, .... I estimated the final price was double the planks alone.
Can be done. I put Mannington engineered wood on slab with good results.
You need a barrier. Check their web page for instructions. I don't know
about Pergo, but Mannington has the installation instructions on their web
I have laminate in my basement. As far as moisture goes, I was able to buy
an underlayment that is a combination pad and moisture barrier (pink versus
blue). Ask for it. I taped the seams with that red tape they use to seal
exterior tyvek, etc.
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