Leon Fisk wrote:
On Wed, 07 Sep 2011 13:22:18 -0700
wrote:

snip
Was that the standard ~12x12 inch roof vents you modified?

They are 'eyebrow' vents. They're rectangular, measuring 24-1/2" W
by 17-1/2" deep and about 3" high. Examples are shown on the
"Barbie and Ken Dream Bungalow". (I Kid.)

If so do you have any links/info on the solar exhaust fans you used for
this?

The exact things:
http://www.costco.com/
Item: 470353
Solar Powered All Purpose Ventilator
I really like the thought of the sun cooling my attic.
The installation was fast and easy; I appreciated not
having to do any real 'electrical' work.

snip
Then the little 'eyebrow vents' should totally gross you out.
They are just awful.
http://roofinginsacramento.com/Photo...Vent_small.jpg

Gulp! I saw the price ($269.99), I'll run some wiring into the
attic first before swallowing that $$$. But you did give me a good idea
that I hadn't been considering. I may just round up some smallish
120vac exhaust fans and mount them in the attic underneath my existing
vents. Put an on/off switch somewhere convenient and call it
good-enough.

There are non-solar 'whole house' fans in the sub $100 range
that will install quickly and easily, too.

There are 'snap action' thermal switches that turn on at 80 F
in series with the solar panel and motor in the admittedly
overpriced (but effective) Costco fan I cited. During very
cold months, down to +40 F (BURRR!), it's nice to know that
the fans won't pull cold air into the attic.

Those eyebrow vents actually don't look so bad.

Aesthetically? I dunno. That doesn't concern me
overmuch. Their performance is stunningly awful.
That concerns me *a lot*.

One would need to remove all the shingles and have
nothing but 'eyebrow vents' to approach reasonable
airflow. To have just three of these teeny little
things to vent an entire house is fraud.

I really don't care
about the look as much as the function.

I'm with ya.

In another post Lloyd more or
less confirmed some suspicions I had concerning the ridge-vents in
wide use and also alerted me to another unknown vent that I'll have to
take a look at. Need a new roof anyway and that would be the time to
change/add anything new vent wise.

We have vents that look like model "RVA 51 / RVG 51 Square" about
halfway down on this page:

http://www.airvent.com/professional/...fLouvers.shtml

Our's have a nice internal screen which seems to be sorely lacking
nowadays on the borg vents I've looked at. Insects would have a blast
without screens...

Please PLEASE stay on top of your roofer WRT venting.

Left to their own devices, he will install an insufficient
number of the absolutely worst performing crap in such a
way as to make correction very difficult. AMHIKT, go ahead!

(There were no fewer than 30 nails holding the top 5" of
the edge of my eyebrow vent to the roof and not a single
nail or speck of adhesive holding the bottom 90% of the
flange.)

Thanks Winston, for the info and idea!

Certainly. Good luck, Leon!

--Winston