Back around 2002, I painted a bedroom with a water-based eggshell
enamel. At the bottom of one wall, where the wall meets the trim,
something is leaching out and running down the trim. It is water
soluble, I can wipe it away. See the link below for the image.
Anyone know why this happens?
Hmm, interesting. (strokes chin meditatively)
In order for something to run down the trim like that, there has to be
water about. The question you really want to answer is, where is that
water coming from? Condensation on the walls? A leak inside the wall?
Find the source of the water and that'll point you to the solution of
your problem. Probably doesn't matter *what* is leaching out ...
The phrase "jump the shark" itself jumped the shark about a decade ago.
Ive seen this in a house made of concrete block...fill dirt had been
brought into the yard and the soil level was actually above the
concrete slab floor by about 6 inches on one end of the house.
That's a choice, depending where room is. Water from foundation, leaky
pipe or leaky roof should cover all the bases. OTOH, I had water in a
powder room once and it turned out to be from a leaky water bottle in
pantry behind the powder room.
My garage made of block is backfilled about half way up the wall on one
side, it's cut into a hillside. Only got water once, and that was
before the backfill was sloped away from the block wall. A little tar
on the block and a proper french drain seems to take care of everything.
I did think of an idea after it was done, I think it may solve a lot of
water problems. First install the french drain, covered with a foot of
stone. Now for the tricky part, set pieces of plywood in the middle of
the ditch between the wall and the ground. Switching back and forth add
stone behind the plywood and backfill on the other side. Lift the
plywood as you go. The end result would be only stone touching the
block wall until the top foot or so. Any water that comes toward the
block wall will drain down through the stone all the way down to the
french drain were it drains away.
Resinous stuff can separate from water-based paint - have seen it only
once, on exterior painted stucco/cb. This occurred only two places on a
large building and seemed to seep out quite slowly, in small amount. I
researched it at the time, and can't recall any particular cause.
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