Dam fine question. Not really sure on that one.

My speculation: on flooring the underside is pretty concealed from the
environment, not getting any air flow for exchange of moisture in\out.
Also, I seem to recall one fo the forst steps in doing floors is to
determine the moisture content of the substrat and to apply moisture
barrier in most cases. In fact, certain floors are not supported for
us over concrete floors IIRC.

Boats, I guess they are going to get pretty saturated from the
ambient in a fairly consistent manner and kind of always stay at a
high saturation.

.... all speculation, but really just slighly more so than most of my
posts ;^)

On Mar 11, 2:05*pm, "BobS" wrote:
Good info and I certainly would seal it all around just to make sure
but....

It begs the question, why don't you seal white oak flooring and boat
decking all around?

Bob S.

"SonomaProducts.com" wrote in message

...
Like DJ said, seal it all over with the same number of coats to avoid
warpage. The issue is the ambient moisture much more than the spills.
It takes weeks for the moisture to enetr the inner cells of a board so
the humidity in the bathroom is the real issue. If it is moisting and
drying from one side only you will introduce stress, of expansion and
contraction thus warpage. Try laying a newly glued up panel flat on a
concrete floor and in a day or two you'll see what I mean.

snipe of good post.....