Gerflor's contractual warranty covers established manufacturing defects when products are properly installed and maintained per Gerflor's instructions: 20 years for most products with a wear layer over 0.5mm (15 years for Mipolam/Premium ranges and carpet tiles), and 10-12 years for products with a wear layer under 0.5mm. Coverage is 100% in year 1, declining on a depreciation scale (80% at 1-5 years, 50% at 5-10, 20% at 10-15). Excludes normal wear, improper installation/maintenance, and labor costs for laying or removal.