Exact vs Like-Kind Replacement
Manufacturers, like GAF, design roof systems to last a lifetime. In order to maintain the roof’s integrity, only exact replacement components should be used. In the case where materials are dated or no longer offered, manufacturers offer like-kind replacements that perform equally well or even better.
Top manufacturers have very specific installation and repair procedures that govern the performance of roofing systems. Any deviation from the material, component, or installation guidelines will result in a voided warranty. It’s vitally important that your roofer follows manufacturer guidelines for repair and replacement.