A commercial roofing warranty should be evaluated from the actual written terms, not from a general promise that the roof is fully covered. Before signing a proposal, a building owner should understand who is responsible for materials, who is responsible for installation, what is excluded, what maintenance is required, and how a claim is handled. MQ Roofing serves commercial clients and can be reached at (608) 553-3300 to discuss a roofing project and the warranty documents that apply to it.
Types of Commercial Roofing Warranties
Commercial roofing projects can involve more than one warranty document. A manufacturer or product warranty generally addresses material-related coverage under its written terms. A contractor workmanship warranty addresses installation-related obligations defined by the contractor.
Do not assume that every project includes both types of coverage or that they have the same duration, exclusions, or claim process. Ask for the actual documents that would apply to the proposed system. The exact terms matter more than a general industry range.
Warranty details can also vary with the roofing system. Owners comparing commercial shingle roofing with commercial metal roofing and siding should review the product and installation coverage tied to the specific system rather than assume the same warranty structure applies to both.
Key Elements to Review in the Written Warranty
Coverage: Identify exactly what the warranty says is covered. Do not assume that a reference to leaks, materials, or workmanship includes every cause of failure.
Exclusions: Review what is not covered, such as conditions listed for weather damage, building movement, unauthorized alterations, other trades, or lack of maintenance.
Labor and materials: Confirm whether covered work includes labor, materials, or both, and whether those responsibilities change over time.
Maintenance obligations: Some warranties require inspections, maintenance records, prompt reporting, or specific repair procedures. Ask what must be documented and who may perform maintenance or repairs.
Documentation and claims: Ask what records are required, who receives a claim, how quickly a problem must be reported, and whether the contractor, manufacturer, or another party performs the initial review.
Compare Roofing Bids Side by Side
A warranty cannot be compared fairly if the underlying project scopes are different. Put each proposal next to the others and review the same categories before focusing on price:
- Confirmed services: What work is included in the base proposal?
- Investigation scope: What roof, deck, drainage, or existing-condition assessment was completed before pricing?
- Material and system specification: What roofing system, components, and installation approach are proposed?
- Exclusions and allowances: Which items are outside the base price, and how will concealed conditions be priced?
- Scheduling: What sequence and estimated duration are proposed, and how will delays be handled?
- Occupied-property protection: How will entrances, vehicles, occupants, equipment, and operations be protected?
- References: Can the contractor provide relevant completed-project references?
- Warranty responsibilities: Which obligations belong to the contractor and which belong to the manufacturer or other warranty provider?
Questions That Reveal Incomparable Bids
Two proposals with similar totals may still cover different work. Ask whether tear-off, disposal, deck repair, flashing, penetrations, insulation, cleanup, and other project-specific items are included. Ask how hidden damage will be documented and priced if it is discovered after work begins.
Then compare the warranty paperwork. Does one proposal include a written workmanship warranty while another only references a product warranty? Does one require specific inspections or maintenance? Does one include labor for covered repairs while another limits coverage differently? These questions reveal whether the bids provide the same scope and protection.
Documentation Matters After Installation
Keep the signed contract, final scope, change orders, product information, installation records, warranty documents, and any required registration or inspection records together. If maintenance is required, retain service dates, photographs, repair records, and invoices as applicable.
Good documentation helps establish what was installed, what the written warranty requires, and what happened before a claim. It can also make future maintenance and ownership changes easier to manage.
Benefits of Clear Warranty Terms
A useful warranty explains responsibilities before a problem occurs. It should tell the owner what is covered, what is excluded, what maintenance is required, and what steps to follow when reporting an issue.
That clarity is more meaningful than broad promises of complete protection or zero future expense. No warranty covers every possible roof problem. The value comes from understanding the written obligations of each party and choosing a clearly documented project scope.
Commercial Roofing Warranty Questions
Before approving a commercial roofing proposal, ask for the warranty documents that apply to the actual system and scope. Compare coverage, exclusions, maintenance requirements, claim steps, and contractor versus manufacturer responsibilities alongside the rest of the bid. MQ Roofing can be reached at (608) 553-3300 to discuss a commercial roofing project and its documentation.
Frequently Asked Questions
What is the difference between a manufacturer warranty and a workmanship warranty?
A manufacturer or product warranty addresses coverage defined for roofing materials or the system, while a contractor workmanship warranty addresses installation-related obligations defined by the contractor.
Should I choose the roofing bid with the longest warranty?
Not automatically. Compare what each warranty actually covers, its exclusions, maintenance obligations, claim process, and the project scope that supports it.
Can maintenance affect commercial roofing warranty coverage?
It can. Some written warranties require inspections, maintenance records, prompt reporting, or approved repair procedures, so review the actual document before work begins.
What records should I keep after a commercial roofing project?
Keep the contract, final scope, change orders, product information, warranty documents, required registrations, inspection records, and maintenance or repair documentation.