On Monday, January 28, 2019 at 2:04:47 PM UTC-5, Rod Speed wrote:
Bonnie Kimble m wrote

Did you ever find a solution for your whole house fan on a flat roof? I
am looking for that now for N. AZ house we're building.

We do it this way
https://jhc.com.au/air-conditioning/...vaporative-air

Usually called a swamp cooler in the USA. They have separate
controls for the water spray over the pads and for the fan so
can be used with just the fan for what you want to do.

for full context, visit
https://www.homeownershub.com/mainte...se-255907-.htm

A swamp cooler isn't a whole house fan, ****wit.