[Ohiogirl]

We just had window film installed on the east windows (most of our windows in our CYV) and the south-facing master bedroom. Did not do the lanai sliders from the living room and MBR as they are sheltered by the lanai roof. Felt an immediate difference in how hot it feels near the windows, am hoping it makes a significant difference in the electric bill, although I did it more to mitigate the extremely bright light (always had to keep the blinds closed).

That is also the side of the CYV that is only a about 9-12 feet from the CYV wall of the neighbor's villa, which seems to reflect onto our east side.

That same week, we had a handyman do other work (install laundry room cabinets, change out the pantry door from a bi-fold to a regular door) and he told me he did the film himself for both him and his son - said it wasn't all that easy to do and he recommended professional installation, but for a garage am thinking you could try it yourself. Lowe's sells it, am sure it would come with instructions.

Film, plus a solar fan, plus adding insulation to garage roof and maybe walls should help a lot, but it is still going to be hot May thru October, maybe not so bad in the early morning. Also kind of depends on what direction your garage faces.