I realize this is not a networking forum but thought I would pick the brains of some of the smartest people in the world!

The question(s) are:
1. How hot should a server room be before equipment gets damaged?
2. If the maximum temp is say... 82 F then if the temp gets to say 85F, then what will happen?
3. How to justify to the administration for the need to more A/C, somekind of a notification system of too high temps, and anything else I may need to consider.
I have the temp set on the A/C unit to 72F but when the power goes off it can reach 90F+ or more in a short while. Since I live 7 miles from this school and nobody else thinks of turning the A/C back on after a failure but me.
A little history:
We are a small K-12 school district that like most rural districts are facing declining enrollment, there fore less dollars are available. My server room in the high school currently has 3 servers with the newest one being 1 year old, another is 3 years old, and the third one is about 7 years old. The newest one does put out a lot of heat. The room is approx 6ft by 12 feet with about a 10,000 BTU window A/C unit and a radiator for heat.
We do have a lot of power failures lasting on the average of 2 hours or so. Buying a UPS big enough to handle this is out of the question.
Does anyone have any ideas that might help. I have found these 2 good articles that help explain things but just wondered if I am the only one in this boat... surely not!
http://www.openxtra....room-temperature.php and
http://www.openxtra....oring-essentials.php