Manufacturer Warranty vs. Contractor Workmanship Warranty
When informed that a new roof includes a warranty, homeowners should ask which warranty is offered and what it covers. Most roofing projects include both a manufacturer’s material warranty and a contractor’s workmanship warranty.
Manufacturer’s Material Warranty
A manufacturer’s warranty typically covers defects in roofing products, which may include shingles, underlayment, membranes, or other qualifying components, depending on the system.
Coverage varies. Some warranties offer stronger protection initially and become prorated over time. Others apply only if approved products are installed as a complete system or if the warranty is properly registered.
Manufacturer warranties commonly contain requirements or exclusions involving:
Improper installation
Inadequate ventilation
Unauthorized alterations or repairs
Storms, impacts, or other outside forces
Failure to maintain the roof
Labor associated with removing or replacing defective materials
Homeowners should review the actual warranty terms instead of relying solely on the advertised duration.
Contractor’s Workmanship Warranty
A workmanship warranty, issued by the roofing contractor, covers qualifying installation-related issues. Examples include improperly installed flashing, incorrect fastening, or other installation errors that cause covered problems.
The warranty should specify its duration, included corrective work, service request procedures, and excluded conditions. It should also clarify whether repairs by another company affect coverage.
Since the contractor is responsible for this warranty, the company’s experience, reputation, and stability are important. A long workmanship warranty is of little value if the contractor is unavailable when service is needed.
Both Warranties Are Important
A material warranty does not cover poor installation, and a workmanship warranty does not make the contractor responsible for all product failures. Each warranty addresses different issues.
Before choosing a roofing system, request copies of the warranty terms and keep them with your contract, permits, photographs, and payment records.
Packard Roofing & Waterproofing explains the applicable material and workmanship warranties, ensuring homeowners understand who provides each type of coverage, what protections are included, and how to request assistance if needed.
