Roof Warranties: What They Actually Cover (And What They Don’t)

The Three Things Contractors Call a "Warranty"

Three separate promises float around a typical roofing proposal. They come from different parties, cover different failures, and have wildly different value.

1. The Manufacturer Material Warranty

This is the shingle maker's promise that the product was not defective when it left the plant. Think blistering, granule loss beyond normal weathering, or delamination.

What it usually covers: replacement shingles. What it usually does not cover: the labor to tear off the bad roof and reinstall, disposal, or the underlayment and flashing wrecked along the way.

Wind coverage deserves its own paragraph, because it is the most misread line on the certificate. That "130 mph" number is not automatic. To earn the rated wind speed, the shingle has to be fastened exactly the way the manufacturer specifies (often six nails per shingle instead of four, driven flush in the nail zone, correct length, correct depth), with the manufacturer's own starter strip properly adhered at eaves and rakes, and hand-sealing where the instructions call for it on steep slopes or cold-weather installs. The strongest programs, like GAF's WindProven-style coverage, go further and require a full set of qualifying accessories before any wind limit is removed. If your house sits on an open site out toward Waunakee, Cottage Grove, or the ridgelines west of Verona, ask specifically what nailing pattern the crew uses. That one question separates real wind coverage from a marketing number.

Every shingle sold in Wisconsin comes with some version of a material warranty. It is the baseline, not a selling point.

2. The Manufacturer System Warranty (Only Through Certified Contractors)

This one has real teeth, and you can only get it if your installer is factory-certified. It covers the manufacturer's components plus the installation workmanship, backed by the manufacturer instead of the contractor.

Why that matters: if your roofer closes up shop in year six, the coverage still stands. The manufacturer inspects, adjudicates, and pays. Certification programs like GAF Master Elite exist because manufacturers will not put their own money behind workmanship unless they have vetted the crew, verified licensing and insurance, and confirmed a track record.

To qualify, the roof generally has to include a required number of that manufacturer's qualifying accessories: starter strip, hip and ridge cap, leak barrier, ventilation, underlayment. Not the whole catalog, but a set count, and ventilation has to meet spec.

This is also where mixing brands gets expensive. Dropping a cheap off-brand ridge vent or generic starter into a name-brand system is one of the fastest ways to lose the coverage you paid for. Same goes for a roof done in pieces by two different companies using two different product lines. Nobody wants to own the seam between them.

3. The Contractor's Own Workmanship Warranty

This is the roofing company writing its own promise on its own letterhead. Two years, five years, ten years, "lifetime workmanship," you will see all of it.

Honest truth: this is the warranty most likely to matter, because most roof problems are installation problems, not shingle problems. Nail placement, step flashing at a chimney, valley detail, a pipe boot reused instead of replaced. Those are labor issues.

And it is only as good as the company still existing. So ask two questions. First, how long has the business operated under this exact name and these Wisconsin credentials? Second, is the workmanship warranty backed by anything outside the company itself, such as a third-party administered warranty, a surety bond, or a manufacturer-backed system warranty layered on top? Most contractor warranties are backed by nothing but the owner's word. That is not automatically bad, but you should know it.

We will model the answer we ask you to demand. Buckshot General Contracting, doing business as Buckshot Exteriors, has been family owned and operating since 1979, our entity is on file with the Wisconsin Department of Financial Institutions, and we hold Wisconsin Dwelling Contractor certification through DSPS along with current general liability and workers compensation coverage. Ask for the credential and policy numbers on your estimate and verify them yourself. Any contractor who hesitates on that request has told you something.

A quick real example. We were called to a 1950s home on Madison's near west side. The roof went on around 2011 by an outfit that no longer exists, shingles were curling early, and the homeowner had a "lifetime" certificate in a drawer. In the attic, the ridge vent had been nailed over solid decking with no slot cut through it, and the soffit intake was buried under blown-in insulation. The manufacturer denied the material claim on ventilation grounds, which was the correct call under the terms. Material claim: denied. Root cause: install. That is the pattern we see most.

What "Lifetime" and "Prorated" Actually Mean

"Lifetime" rarely means what it sounds like. Pull out the certificate and you will likely see Lifetime Limited Warranty, plus a separate named period (GAF calls theirs SureStart) that is the non-prorated stretch.

During that non-prorated window, commonly the first 10-15 years depending on product and tier, a legitimate defect claim gets you full replacement value on materials. After it expires, coverage becomes prorated: the manufacturer's obligation shrinks based on how much service life the roof has already delivered. By year 25, a defect claim might net a few hundred dollars in materials, nowhere near a reroof.

"Lifetime" itself means as long as the original owner (or, in many programs, the second owner after a proper transfer) owns the home.

So the number worth comparing between quotes is not the headline year count. It is the length of the non-prorated period and whether labor is included. Standard material warranties rarely include labor. Upgraded system warranties often include tear-off and reinstall labor for a defined period, sometimes on a separate prorated schedule.

Ask flat out: "Does this cover labor, and for how many years at 100 percent?"

If you have a proposal in hand and the warranty language is a wall of fine print, call the number on this page and we will read it with you. No charge, no pitch, and no requirement that we bid the job.

What Actually Voids a Roof Warranty

This is where claims die. In practice, these are the reasons homeowners get denied:

• Improper attic ventilation. The number one killer. Wisconsin freeze-thaw cycles and humid summers cook shingles from underneath when intake and exhaust are not balanced. A claims inspector will crawl your attic before looking at your shingles. Soffits blocked by new insulation are extremely common in older Madison homes.
• Deferred homeowner maintenance. Most warranties condition coverage on reasonable upkeep. Clogged gutters and packed valleys that dam water back under the courses, tree limbs abrading the surface, debris piles holding moisture against the shingles, standing leaf mat behind a chimney. Adjudicators do look for this, and it is a routine denial. Clean the gutters twice a year and keep limbs cut back off the roof plane.
• Layovers. New shingles over the old layer. It saves a day of labor, hides rotten decking, traps heat, and voids most enhanced warranties. Wisconsin's Uniform Dwelling Code generally follows the model residential code on roof re-cover, which limits total layers and restricts re-covering over shingles that are curled, buckled, or water-soaked, but adoption details and local amendments vary. Your municipal building inspector issues the permit and can confirm exactly what applies at your address. Either way, "allowed by code" and "covered by warranty" are not the same thing.
• Unregistered installs. Many enhanced and system warranties require registration within a set window after completion. Miss it and you drop to the base material warranty.
• Non-system components. Off-brand ridge cap, mismatched starter, generic pipe boots, incompatible sealants.
• DIY or third-party repairs. Tarring a valley, letting a handyman seal flashing, screwing a satellite mount through the field.
• Pressure washing. Blasting granules off to remove moss or algae. Instant denial, and it genuinely shortens roof life. Manufacturer-approved cleaning is a gentle diluted bleach-and-water wash with a low-pressure rinse, no scrubbing.
• Structural problems or inadequate decking. Spongy, delaminated, or over-spaced decking makes coverage questionable from day one.
• Storm damage. Not a warranty issue at all. Hail and wind are insurance claims, a separate process. If you are unsure which bucket your damage falls in, that is what a free storm damage inspection is for.

Ice Dams: The Wisconsin Exception Nobody Warns You About

Ice dam leaks are generally excluded, and this is the single biggest surprise for homeowners here. Shingles shed water flowing downhill. They are not designed to hold back water ponding behind a ridge of ice at the eave.

Manufacturers classify that as a ventilation, insulation, or design condition, not a product defect. Your contractor's workmanship warranty may not cover it either, unless the required ice barrier was missed. Code in our climate requires an ice-and-water shield membrane running from the eave to at least 24 inches inside the exterior wall line. If that membrane is missing on a recent install, that is a workmanship conversation.

Insurance is a maybe. Many policies cover sudden interior water damage from an ice dam, though language varies and repeat damming often gets called maintenance.

The permanent fix is almost never on the roof surface. It is air sealing the attic floor, correcting insulation depth, and balancing intake and exhaust so the deck stays cold.

Do Repairs and Partial Replacements Carry Coverage?

Yes, but a much thinner version, and this trips people up constantly.

New shingles on one slope carry their own material warranty on those shingles only. What a partial job cannot get you is an upgraded manufacturer system warranty, which almost always requires the entire roof installed at one time by the certified contractor using the qualifying accessory package.

A repair performed by your original installer generally preserves your existing coverage, and reputable companies put a short workmanship term (often a year or two) on the repaired area itself. It does not reset the clock on the whole roof.

A repair by an outside company is the risky one. It can void coverage at that location, and if the fix involves non-system materials or cuts into a manufacturer-backed system, it can reach further than the patch. Call the original roofer first, even if you are annoyed with them.

Metal Roofs and Low-Slope Porches Have Their Own Paperwork

Not every roof in Madison is asphalt, and the warranty language changes with the material.

Metal roofing usually splits coverage in two: one term on the panel or substrate (perforation, rust-through) and a separate finish warranty covering chalk, fade, and paint film integrity, often with different year counts and its own proration. Exposed-fastener panels typically require periodic fastener and gasket maintenance to keep coverage alive, which is worth knowing before you buy one for a barn or shop.

Low-slope EPDM or TPO sections are extremely common on older Madison housing stock: back porch roofs, kitchen additions, dormer flats. Those membranes carry their own manufacturer warranties, frequently require a certified installer, and the better ones cover labor as well as material. They also list maintenance requirements and prohibited materials, and putting asphalt roof cement on a single-ply membrane is a classic way to void the whole thing.

If your reroof involves both shingle and flat sections, ask how the two warranties meet at the transition, and try to keep the systems within one manufacturer's family where you can.

Adding Solar, Skylights, or New Vents Later

New penetrations do not automatically void your whole roof, but they are generally excluded from coverage, and bad flashing can void coverage in that area or beyond.

• Tell your original roofing contractor in writing before anyone drills into the roof.
• Have a roofer handle or inspect the flashing, using proper mounts and flashing kits rather than sealant.
• Get in writing who covers a leak at the mounts and for how many years. Solar leak warranties are often much shorter than the roof's.
• If your roof is 15 or more years old, replace it first. Removing and reinstalling an array later costs far more than the timing savings.

Filing a Claim, Registration, and Transfer

Call the installing contractor first. They can usually tell within an hour whether you are looking at a defect, an install error, or storm damage, and most manufacturer programs expect the contractor to submit or assist.

Then document before anyone touches anything: dated photos of the interior stain, the attic side, and the roof surface. Pull your certificate and registration number, final invoice, permit, product name and color, and the shingle wrapper or bundle lot codes if you kept one. Good contractors photograph the wrapper on install day. Ask yours.

Expect acknowledgment in a few days to a couple of weeks, then a field inspection or a request to cut and mail physical samples. If you are denied, get it in writing with the clause cited. A ventilation denial can sometimes be reversed with attic photos and net free area measurements showing intake and exhaust actually meet spec.

If the contractor goes quiet, confirm whether the business is still active under that name in Wisconsin, send a written demand by mail, and go straight to the manufacturer if you hold a system warranty. Wisconsin's construction-defect notice statute (Wis. Stat. 895.07) generally requires giving a contractor written notice and a chance to inspect and repair before filing suit, so keep everything in writing.

One relief: none of this touches your homeowners insurance. Warranty claims go to the manufacturer or the contractor, so there is no claim history and no premium impact.

On registration, that is your contractor's job and the proof is yours. Get the certificate showing your address, product, install date, and coverage tier before you pay the final invoice. Most manufacturer warranties allow one transfer to the next owner, usually within a limited window after the sale (often 60 days) and sometimes with a small fee. Contractor workmanship warranties are frequently non-transferable unless the paperwork says otherwise. Keep one folder with the certificate, registration confirmation, invoice, permit, and tear-off photos. At listing time that folder is worth real money.

What to Ask Before You Sign

Take this to every estimate. The answers separate serious residential roofing contractors from the rest.

• Which of the three warranties am I getting, and can I see a sample certificate?
• How many years is the non-prorated period, and does it include labor?
• Is this manufacturer-backed, and what certification lets you offer it?
• What nailing pattern and accessories are required for the advertised wind rating?
• Which qualifying accessories are included, and is anything a substitution?
• Who registers it, and when do I get confirmation?
• How long has this company operated under this name, what are your Wisconsin credentials, and is your workmanship warranty backed by anything beyond the company?
• What are you doing about ventilation, and will it meet the manufacturer's requirement?
• Full tear-off, and what happens if you find rotten decking?

If a salesperson gets vague on ventilation or certification, you have your answer.

A Straight Answer Costs You Nothing

Warranty paperwork is written by attorneys, not for homeowners. You should not have to decode it alone, and you should not have to buy anything to get help.

We will come out, get on the roof, look in the attic, check ventilation and decking, and tell you plainly what your current roof needs and what coverage a new one would realistically carry. It is free, it takes about an hour, and nobody is going to lean on you. If the roof has ten good years left, we will say so and leave our card.

Buckshot Exteriors has served Madison and south-central Wisconsin since 1979. Call for a free inspection and estimate, or reach out here and we will get you on the schedule. If a storm just opened up your roof, call first and let the warranty conversation wait until the water stops.