By Brad Burton, Founder & Editor ·Updated June 2026 ·How we research this

A new roof replacement produces two completely separate warranties — a manufacturer warranty that covers the shingles themselves, and a workmanship warranty that covers the quality of installation. They come from different parties, cover different failures, have different durations, and are voided by entirely different things. Understanding both is essential before signing any roofing contract.

Manufacturer Warranty

  • Covers: the shingles (material defects)
  • From: GAF, CertainTeed, Owens Corning, etc.
  • Duration: 25 years to lifetime
  • Voided by: ventilation failures, improper install, mixing brands

Workmanship Warranty

  • Covers: installation errors (leaks from labor mistakes)
  • From: your contractor
  • Duration: 1–25 years depending on contractor
  • Voided by: contractor going out of business

Manufacturer Warranty: The Deep Version

Standard Limited Warranty (25–30 Years)

Most architectural shingles sold in the United States include a standard limited warranty — typically 25–30 years. These warranties are prorated, meaning the manufacturer's contribution to any claim decreases over time. In year 25 of a 25-year warranty, you might receive coverage for only 10–15% of replacement material cost. Standard limited warranties are available through any licensed contractor — no special certification required.

Premium System Warranties (50 Years, Non-Prorated)

GAF's System Plus and Golden Pledge, CertainTeed's SureStart Plus and 5-STAR, and Owens Corning's Preferred Protection — these elite tiers offer 50-year non-prorated coverage, meaning the manufacturer pays the same percentage of replacement cost in year 40 as in year 1. To qualify, two conditions must be met simultaneously:

This is why certified contractors often command a 10–20% price premium. It's not just their labor — it's access to the warranty tier.

What Voids a Manufacturer Warranty

The four most common voiding events:

Note that storm damage — wind, hail, ice, falling debris — is typically excluded from manufacturer warranties entirely. That damage is covered by your homeowner's insurance policy, not the shingle company.

Transferability

Most manufacturer warranties are transferable to one subsequent owner. The filing window is narrow — usually 30 to 60 days from the real estate closing date. Miss it and the warranty converts to a basic limited non-transferable version. Some manufacturers charge a transfer fee ($100–$200). If you're buying a home with a newer roof, verify warranty registration and request the transfer documentation from the seller before closing.

Workmanship Warranty: What Contractors Guarantee

What It Covers

The workmanship warranty covers failures caused by installation errors — not by product defects or storm events. Common covered failures: leaks originating from improperly installed step flashing, incorrect nail placement causing shingles to blow off in normal winds, improper valley installation, or missed penetration sealing around pipes and vents. If water comes in because of how the roof was built, this warranty responds.

Duration Varies Dramatically

Standard contractors typically offer 1–2 years of workmanship coverage. GAF Master Elite and other certified contractors commonly provide 10–25 years. This gap is significant — most installation failures manifest within the first 5 years. When comparing bids, ask specifically about workmanship warranty duration and get it in writing in the contract.

The Contractor Viability Risk

A workmanship warranty is only as good as the contractor standing behind it. If your roofer closes, merges, or goes bankrupt, the warranty is unenforceable — there's no insurance backing it. This is a real risk in roofing, an industry with high business turnover. Before hiring, check that the contractor has been in business for at least 5–10 years, carries active licensing and insurance, and has a local physical presence. A five-year-old company with 200 local reviews is substantially more likely to exist when you need a warranty call than a storm-chaser with no local history.

What Workmanship Warranties Don't Cover

The Ventilation-Voids-Warranty Trap

This catches more homeowners than any other warranty issue. GAF, CertainTeed, and Owens Corning all require adequate attic ventilation as a condition of their manufacturer warranty. The standard: 1 square foot of net free ventilation area per 150 square feet of attic floor space (or 1:300 with vapor barrier).

Common scenario: A homeowner gets a new roof. Three years later, shingles show premature blistering or granule loss. They file a warranty claim. The manufacturer sends an inspector who finds the attic runs 20°F over ambient temperature from inadequate ventilation — a clear violation of warranty terms. The claim is denied, and the homeowner has no recourse.

Before any re-roofing job, ask your contractor to assess your attic ventilation and document that it meets manufacturer specifications. If it doesn't, adding ridge vents and soffit vents is a relatively modest cost — far less than a voided warranty on a $15,000 roof.

How to Register Your Warranty

Most manufacturers require online registration within 30–60 days of installation. Your contractor may do this on your behalf — ask for confirmation. Registration typically requires your name, property address, installation date, contractor name and license number, and the product line installed. Keep your warranty registration number with your home records alongside the permit and inspection card.

Know What Your Roof Should Cost

Get a baseline estimate before talking to contractors — so you can compare quotes with context.

Free Roof Cost Calculator

Frequently Asked Questions

How do I file a roofing warranty claim?
For a manufacturer warranty claim, contact the manufacturer directly — GAF, CertainTeed, and Owens Corning all have claim portals on their websites. Document the problem with photos, locate your warranty registration number, and submit the claim with your installation date and contractor information. For a workmanship warranty claim, contact the original contractor in writing (email creates a paper trail). If the contractor is unresponsive or out of business, your only option may be a civil claim or your state's contractor licensing board.
Does the warranty transfer when I sell my house?
Most manufacturer warranties are transferable once to a new owner, but the window to file the transfer is narrow — typically 30 to 60 days from the sale date. File after that window and the warranty may become void for the new owner. Some premium warranties charge a transfer fee ($100–$200). Workmanship warranties from contractors vary; many don't transfer at all since the contractor's relationship is with the original client. Ask your contractor explicitly about transferability before signing the contract.
What voids a manufacturer shingle warranty?
The most common voiding events: inadequate attic ventilation (the leading cause of denied claims), pressure washing the shingles, excessive foot traffic causing mechanical damage, mixing components from different manufacturers, using a non-certified contractor on premium warranty tiers, and failing to register the warranty within the required window. Damage from wind, hail, or falling debris is typically excluded from manufacturer coverage regardless — those events fall under your homeowner's insurance, not the shingle warranty.
Is a 50-year warranty worth the premium?
Only in specific circumstances. A 50-year non-prorated manufacturer warranty requires both a certified contractor and all components from the same system — and those certified contractors typically charge 10–20% more. If you plan to stay in the home long-term and want the strongest possible protection, it may be worth it. If you're likely to sell within 10–15 years, the warranty value diminishes significantly since most resale value comes from the roof's visible condition and age, not its warranty tier. Run the math against the premium cost before deciding.