Hax Planx wrote:
Prometheus says...

Have you considered installing a fan in the wall near the peak of the
roof, where the heat collects? If you do that, and open a window at
your level, it should cool the place down fairly quickly and
signifigantly. Even a good size passive vent might help quite a bit.

Most people are recommending vents and fans, but it is a cinder block
building and they would be difficult to install.


install the vent through the roof.