"Ron" wrote in message
...
I installed a 12" roof turbine today and after I finished, I started
looking at it and wondering, how in the hell is rain NOT going to get in
it?

Looks like the rain could just run down the fins and right into the
attic, if it isn't spinning while its raining.

How does the rain stay out of it?


They usually start spinning. As the roof cools because of the rain the hot
air in the attic rises and the turbine spins.
If water was an issue do you think that there would be so many of them
installed?