What drives the decision
Determine what needs protection and whether visible-light quality, color rendering and storefront visibility are also priorities.
What changes the budget
Large retail façades and specialty museum/display applications may justify higher-performance products.
Operations and lifecycle
Fading has multiple causes, so no film should be marketed internally as eliminating all fading.
Planning boundary
Use manufacturer test data for the exact product and glazing combination rather than a generic UV-blocking claim.
Educational planning only. Actual construction, code compliance, regulated systems, hazardous materials and safety-critical work require qualified professionals and current local requirements.