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Posted by Sasquatch on December 1, 2006, 11:38 am
Thanks for the input, everyone! Sounds like it will be okay as is. I
like the idea about putting a half circle of flat aluminum that matches
the shape of the ornament directly behind the ornament with caulk.
That should do it. Water can still enter the vent slits and pool up,
but it will be negligible.
Thanks,
John
Jonny wrote:
> > For our new construction, we're adding a semi-circle ornament to the
> > gable on the front of our garage. It's a white, vinyl, semi-circle
> > ornament that looks like a vent. But it will definitely *not* be a
> > vent. I've been told that a vent there is not necessary as our garage
> > has a ridge vent along the entire length of the roof ridge, and that an
> > extra vent where the ornament will be located will not help and may
> > only cause complications. So, since it will not be a true vent, my
> > question is this: Should we be careful to use a faux vent ornament
> > that *looks* like a vent but is solid vinyl with no openings to allow
> > moisture behind it? Or is it okay to use an ordinary ornamental vent
> > and just not have a hole in the wall behind it?
> >
> > The reason I ask is because our builder has in stock ornamental vents
> > that are true vents. They use them whether a true vent is called for
> > or also when the ornamental vent is just for decoration. They do not
> > have faux vents in stock. So they are inclined to just use one of
> > these true vents, but not actually use it s a vent. So behind the
> > vinyl vent, there would be sheathing and Tyvek. The vent itself
> > includes the white vinyl ornamental vent and a screen on the back, much
> > like a window screen.
> >
> > I know the Tyvek will resist moisture when there is a blowing or
> > driving rain that causes water to enter the ornamental vent, but is it
> > wise to use a vent in a case like this? Isn't it just kind of asking
> > for water issues? Plus junk could get stuck in the vent holes, or even
> > bats or hornets/wasps nesting, etc. What do you guys think about this?
> >
> > Thanks in advance for any advice.
> >
> > - John
> >
>
> If the soffit vents and ridge vent are properly balanced, you shouldn't add
> any kind of attic venting. Gable venting may upset the airflow pattern.
> --
> Jonny
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