I noticed today that in my attic a good number of roofing nails have ice on
them, and when the ice melts I get water drops all over the place. Some of
my panels are also moist to the touch. Up here in New England, we've had
below freezing temperatures for a few days now. Is the bitter cold causing
my problem, and is it anything to worry about? I've never heard of roofing
nails getting ice on them....
It is potentially serious, depending on a lot of factors.
Maybe you got lucky and caught it soon.
Finding the source of the moisture is one first step.
Could be things like exhaust fans vented into attic,
lack of vapor barrier below insulation.
Can even be moisture from products of combustion
inside the chimney/. A poorly sealed chimney liner
will allow moisture to pass thru the brickwork
into an attic. Saw one case where it was practically
raining in the attic from this.
Play detective before deciding what to do.
You have too much moisture or heat in the attic. That means you have a
moisture source, like a bathroom vent going into the attic (very bad idea
that some builders like to do), a bad or lacking vapor barrier, or you don't
have enough ventilation in the attic. Attics need to be ventilated both
summer and winter.
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