Perhaps I should wait a while till it gets hotter (dryer) but is it
feasible to sand and repaint? This is a somewhat heavy wood door. I
guess there is no way to prevent moisture from getting to the door
every so many years??? It only appears that the moisture got to the
very bottom and doesn't appear too bad yet but don't want it too so
I'm considering how to fix this while it's not too bad.
It's a bit weird looking. And the door appears to have a high
gap at the bottom and is positioned high over grade so that water
should not be wicking up into it from the bottom. It may not have
been painted on the bottom edge? That would make it easier
for moisture to get in. In any case, scraping, sanding etc to get
what's there off is the first step. Then you can proceed based
on what you find underneath. May require some exterior grade
wood filler, sanding, priming, painting. And check that bottom
It is typical (or common) for doors and trim not to be sealed on the end
of grain. Door bottoms so often begin to warp, expand and split.
Indoor or outdoor, it takes just the continual moisture from dew or
condensation running down the door and wicking into the end grain.
Sanding, priming and painting the damaged area and the bottom of the
door should take care of it. If it is too heavy to take down, just open
the door, lay down a tarp, and use a small foam roller to paint bottom
of the door...may not be up to standards but surely would do. I make
such adjustments when something is too heavy for me to move :o) Just
make sure the door has dried out before painting.
As Oren said, pull it off and do the work on sawhorses it will be
easier and more effective. What I have done before is prime and paint
the bottoms well as you do the entire door. Then, before you remount
spread a skin of silicon caulk or RTV clear on the bottom surface and
up the sides 1/2 " or so. Takes a little extra time but you won't
have to do it again. You will have to put the silicon on after you
paint because paint won't adhere to the silicon.
I had a garage door that was too close to a lawn sprinkler head at a
previous residence and it ate the lower frame too. I did the above to
all of the frame edge parts as I rebuilt it.
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