A substitute product may differ in appearance, compatibility, application, or warranty conditions. Similar names do not establish equivalence. Substitutions should be reviewed against the complete system and the owner's selections.
What to do next
Ask for the exact replacement product and reason for the change. Have the responsible project professionals confirm suitability. Record the accepted substitution before installation so the final material list and maintenance documents reflect what is actually on the roof.
Related Perkins guidance
Contact Perkins Roofing to discuss your roof and the appropriate next step.