I am noticing several cracks forming where the wall meets the ceiling. These
are appearing in several spots on the main floor. There is no 2nd floor.
The cracks are also on the interior walls only and not all the interior
walls have cracks. The cracks span about 2 - 3 inches I'd say. The house is
11 or 12 years old. It's winter where I am and the temperature drops to
Is this anything I should be worried about?
Interesting article. This does sound like what I am seeing. I haven't gone
into the attic yet. I did peek in last winter and it looked ok up there. At
least from what I can tell that is. It's interesting that the article talks
about installing crown molding. I have been thinking of doing that
actually. I may now have a good reason for my wife ;)
The trusses will still lift. If you are going to do crown, you
should look into pinning it to the ceiling rather than the wall, I
think I remember Journal of Light Construction doing an article
If it becomes a major issue, the best solution is to not nail the
drywall to the trusses for about 2 feet at the interior wall.
Carry the drywall with clips or nailers on the top plate so that
the trusses can lift without arching the drywall at the wall
ceiling intersection. This will be a mess to accomplish without
disturbing an existing ceiling.
Keep the whole world singing . . . .
Yeah, the article mentions that the crown should be nailed/attached to the
ceiling. Also, that they should be painted in the winter so that when they
do move, a paint line will not be exposed.
It's funny how the article mentions that this is usally only a concern by
new home owners as I am one of those (going on my 2nd winter).
Thanks again for the advice. I was worried for a bit but it's good to know
that this is probably not a structural problem with the house.
Interesting article. The author doesn't comment on whether adequate
ventilation could help alleviate the problem. That begs the question:
is the dimensional change more moisture related or temperature
Interesting article, though I'm not sure I agree with his moisture
differential stuff. I always thought it was due to the fact that the
diagonal webs are restraining the bottom chords in such a way that as
they shrink the bottom goes up (unlike a second floor joist which can
shrink but not lift--basically the whole works comes down as it
dries). It does also seem plausible that thermal expansion/contraction
could be a factor. If this is the case, then ventilation is not going
to help. It would be worse in new houses that got very wet during
construction, but also, could be simply seasonal wood movement (driest
in the winter in a cold climate in a heated house).
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