Two roof proposals may describe different work. Use a consistent checklist to compare the assembly, exclusions, allowances and written terms.
Normalize the scope before comparing totals
Check that each proposal addresses removal, disposal, substrate preparation, underlayment, flashing, ventilation and drainage. Confirm the actual material and accessories rather than a broad product category.
- Tear-off or recovery assumptions and existing layers.
- Deck repair allowances and approval method.
- Flashing and roof-to-wall transition treatment.
- Site protection, cleanup and access arrangements.
Separate coverage from assumptions
Request the actual workmanship and manufacturer warranty documents. Eligibility, exclusions, registration and maintenance requirements can vary. A contractor credential alone does not identify the warranty you will receive.
Write down questions beside each proposal and resolve them before signing. The checklist is an organizing aid, not a contract review or engineering assessment.
Downloads and links
Use these resources.
Download the checklist
Original Certified Roof Systems planning resource. Reviewed October 24, 2026.
↗