In Arizona more than 50% of a home's heat gain comes through windows, driving up utility bills.  Shade screens will block more than 90% of the sun's rays' and dramatically increase comfort and lower energy bills.  Shade screens should be removed to increase heat gain in the winter and cleaned and attached during the spring to block heat gain.  Window film may be a good option if you do not want to sacrifice daylighting but can also be applied with shade screens to lower conductive and radiant heat gain.  We individually measure all our screens and can fit any arch or add spacers to center-piece windows to meet your needs.