Eagle Project - Re-painting a locker room that has oil based paint
I am working on my Eagle Project for Boy Scouts and part of my project is re-painting the boys locker room in my school. It currently has oil-based paint on the walls. I would like to use Latex paint for the ease of use and clean up but am unsure of the process for painting over oil based paint. I would most likely like to use a Latex semi gloss. The walls are cinder-block walls and are painted with a semi-gloss now.
What type of primer and paint should I use. Do I need to use a special primer for cement? What about the paint, does it need to be a special cement paint?
Any help is appreciated!