We live in Souther California and the summer sun can be intense. We have a few very large slider (10' H x 20' L) that we are looking to tint to reduce the amount of light coming into the room and to help with our A/C costs that are now running 24/7. We currently have honeycomb blinds but they are really not helping much. I noticed that mid-day the window glass is very warm and the metal from is too hot to touch.

The other idea we are looking at is installing exterior sun blocking shades.

Any input would be appreciated.