Wow! How about this weather? The rain and the wind are
causing all kinds of trouble here in Southern California, from accidents to
evacuations.
And speaking of water causing trouble, hardwood floors may
take some abuse this stormy weekend. Hardwood floors are hygroscopic (it
readily absorbs moisture), and therefore, react to the relative humidity in the
environment. Too much moisture and you may see cupping (the edges become higher
than the center of the board) or buckling (the boards begin to lift off the
subfloor). Too little moisture and you may see shrinkage. That is why most
manufacturers suggest keeping the relative humidity of your home at a certain
percentage, generally between 30 and 60%.
Before installation of hardwood floors, contractors often,
and should, check the moisture content of the subfloor. If it’s a little high,
then a moisture barrier should be used, whether a concrete sealer or some type
of rated underlayment. However, if it’s too high, that might indicate a problem
such as leak and further investigation may be required before installation can
begin. If there has been a recent flood, then the subfloor should be given time
to dry out.
Many manufacturers require some acclimation time, which
varies from three days to two weeks, depending on the material. This allows the
wood to adjust to the moisture content of the environment.
So, all the moisture present in the environment right now
may cause your hardwood floor to do some things that will make you worry. But
don’t panic! A little strange behavior may not be anything to fret over. Once
the sunny, dry weather is back, your floor may return to its normal self. Be
sure to place mats at all exterior doors. Also, don’t let driving rain come in
through open windows or doors. If water does fall on your floor, whether by
rain or spills, clean it up right away. And don’t ever wet mop your hardwood
floor. Remember, standing water is very bad for your hardwood floors!
If however, you notice extreme changes in your hardwood
(severe cupping, buckling, and/or discoloration or delamination); you should
call in an expert.
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