I have a rear hatch lock extension that permits the rear hatch to be locked
while propped open an inch or so, allowing great flow-thru ventilation with the
top popped up and the screen zipped open or just the skylight opened. One of the
top three accessories a Westy owner could ever want.

See my website for pics.

Or try a more high tech solution from West Marine. Highly recommended by one of
our seasonal listees, Phaedra Savage, this solar powered roof vent can be seen
here:

http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001
&langId=-1&catalogId=10001&productId=13740

According to Phaedra, the vent mounts very nicely into the existing Westy
skylight.

Roy Olynick
'87 VW Westfalia GL
(till death do us part)
'91 Honda Civic SE
'01 Honda Civic LX
www.autobahn.mb.ca/~rrh/Westy_Home.htm

| But on a little more serious note, it always seemed to me that one should be
able
| to do something with convection to help cool the interior.  You can open the
| skylight to let the hottest air out of the top, but where would the
replacement
| air come in if you didn't open your windows?  Anyone?