What drives the decision
Read whether the warranty covers film defects only or also addresses glass breakage or seal failure under specific conditions.
What changes the budget
Longer coverage may carry a premium and may depend on approved installers/products.
Operations and lifecycle
Keep invoices, product IDs and installer records because future claims may require them.
Planning boundary
A warranty is not a substitute for glazing compatibility review.
Educational planning only. Actual construction, code compliance, regulated systems, hazardous materials and safety-critical work require qualified professionals and current local requirements.