Manufacturer vs Workmanship: What a Roofing Warranty Covers
Eleven years after your roof was installed, you pull the folder from your kitchen drawer because granules from your shingles are clogging your gutters. Inside are three pages: a certificate with a shingle brand across the top, a letter signed by your contractor, and your invoice.
The certificate carries the fifty-year number, so you read it first. Those pages are not two copies of one promise. One covers your shingles and comes from the plant that made them; the other covers your installation and comes from the crew that nailed them down. Which one answers your problem depends on what caused it, and you cannot tell from the number. You need to know which of your documents is responsible for the failure and what yours is worth.
Two Documents, Two Signatures, Two Different Promises
A finished roof arrives with coverage from two separate parties, and the two are not versions of each other. The manufacturer stands behind the product it made, and its warranty answers for defects in the shingle itself. The contractor stands behind the labor, and that warranty covers how the shingles were fastened, lapped, and flashed. Manufacturers typically do not insure workmanship, and the product manufacturer cannot influence the workmanship warranty provided by a roofing contractor. Two parties, two obligations, no overlap between them.
That boundary is why a new roof carries both: manufacturer material warranties that run from twenty to fifty years, alongside a workmanship guarantee covering installation quality and performance. Two pieces of paper, two terms, two phone numbers. When something goes wrong at year eleven, the opening question is which of the two owns the failure in front of you.
| Manufacturer material warranty | Workmanship warranty | |
|---|---|---|
| Issued by | the plant that made the shingle | the contractor who installed it |
| Answers for | defects in the product itself | how the roof was fastened, lapped and flashed |
| Span on a new roof | twenty to fifty years | a term the contractor states in writing |
| Loses value as it ages | yes, once proration begins | no, but the term still ends |
| Moves to a new owner | inside a stated window | only where the contractor wrote it in |
Neither document picks up what is left over. Workmanship warranties can exclude damage or defect caused by abuse, modifications by someone other than the contractor, improper use or maintenance, or wear and tear under normal usage. Ordinary aging sits outside both of them.
The Installer's Credential Opens a Tier You Cannot Buy Later
Manufacturer coverage is not a single product with a single set of terms. Manufacturer warranties require professional installation by certified contractors, and depending on the product, a credentialed contractor can offer extended manufacturer warranties. So the paper you finish with turns on who was standing on your roof, and that was fixed before the first bundle was opened.
Choosing an Integrity Roof System installed by a CertainTeed Credentialed contractor opens the path to further protection with SureStart PLUS. That tier is not sold at the shingle aisle, and it cannot be added later. It attaches at installation, through a contractor holding the credential the manufacturer named, or not at all.
This crew holds ShingleMaster, CertainTeed's top-tier credential, covering installation of Landmark Pro, Presidential Shake, and NorthGate ClimateFlex. Those three product families carry a ten-year opening window. Reading two bids side by side, the line that matters is the credential, not the shingle name they both print.
The Opening Window Where Nothing Is Prorated
Manufacturer coverage on a shingle usually runs in two consecutive periods, and the first is the stronger. In case of manufacturing defects, SureStart covers 100 percent of material and labor during the applicable period, three, five, or 10 years, and is not prorated or otherwise reduced. Full material, full labor, and nothing scaled back for the years already spent. It is the only stretch of a shingle warranty that behaves the way most homeowners assume the entire document behaves throughout its term.
The length of that first window is a property of the product, not of the brand on the certificate. Landmark Pro, Presidential Shake, and NorthGate ClimateFlex carry a 10-year SureStart period under a Lifetime-designated warranty. A shingle from a shorter line carries a shorter window. Same manufacturer, same word across the top of the page, a different date for the handover.
What happens at the end of that window is the part homeowners miss. Once the SureStart period ends, coverage narrows to shingles only, and it keeps shrinking as the roof ages. Labor leaves first. The tear-off, the disposal, and the crew hours become yours instead of the manufacturer's.
Why the Same Warranty Is Worth Less Every Year
Proration is the mechanism behind that decline, and it is not hidden. Prorated coverage reduces in value until it reaches zero percent at the end of the specified warranty period. The headline number on your certificate is the year the line touches zero. It is not a level the coverage holds until then.
Run that against the folder in your kitchen. Granules shedding at year eleven, on a warranty whose non-prorated window closed at year ten, sit on the sloping part of that line. Your claim is still live. What it returns is a fraction of the material, no labor at all, and a fraction that keeps shrinking for every year you sit on it. The same claim filed at year twelve is worth less than it was at year eleven, and nothing about your roof changed in between.
The word lifetime does not escape any of this. A lifetime warranty means coverage for as long as you, as an individual homeowner, own your home, not for the life of the home. It is a limit written around the person, not a promise made about the material. Sell the house and the lifetime ends there, whatever condition the shingles happen to be in.
What Voids Coverage and What Only Reduces It?
Two different outcomes both get called losing your warranty, and they behave nothing alike. Proration reduces what a live claim returns, on a schedule printed inside the document. Voiding is a cutoff: a named condition is met, and the coverage stops applying on a roof that may be four years old.
The conditions that void a shingle warranty are mostly installation-related and pertain to the roof assembly rather than the paperwork, so this article stops at that line. On the contractor's side, the exclusions are narrower: abuse, modifications by someone other than the contractor, improper use or maintenance, and wear and tear.
What Transfers at Sale, and What Stops at the Closing Table
The manufacturer's transfer rule is time-boxed. SureStart protection can be transferred from the original homeowner to the subsequent property owner during the SureStart period, providing coverage for the remaining duration of the warranty. Only the original property owner can transfer it, and only to the first subsequent property owner, after which it is no longer transferable. Sell inside that window and the strong half moves with the house. Sell after it, and your buyer inherits the prorated remainder.
Contractor coverage usually does not move at all, which is what makes an exception worth hunting for. This contractor offers a transferable workmanship warranty in writing, alongside written scopes and photographic installation records. A workmanship letter that survives a sale is unusual enough that a buyer's agent will ask to see it before closing day.
The Paperwork Worth Finding Before You Ever Make a Claim
Four documents answer most warranty questions before anyone climbs anything: the manufacturer's certificate, carrying the product name and the warranty designation; the registration confirmation, where an extended tier required one, and its deadline was short; the contractor's signed workmanship letter, carrying its term and its transfer language; and the installation date, which places your roof on the proration schedule.
The fifth is the photographic record from the day the roof went on, and homeowners almost never ask for it. Photographs of the starter course, the fastening, and the flashing answer the manufacturer's opening question: did the shingle fail, or did the installation? Find all five now, while the folder is still a folder and not a claim.
A sloped shingle roof is a fall hazard, so leave climbing up to inspect or photograph shingles for a warranty claim to the manufacturer-credentialed crew, who arrive with the ladders, fall protection, and camera records the file needs.
Frequently Asked Questions
Only for the opening period, and whether yours was extended, turned on the crew you hired. SureStart PLUS attaches to an Integrity Roof System installed by a credentialed contractor, so two roofs carrying the same shingle can sit under different manufacturer tiers. Your certificate names the tier you actually hold, so start there.
Less than the word suggests. Lifetime is a designation printed on your certificate, and the number that actually pays a claim sits just underneath it: a stated SureStart length is paired with each product family carrying that designation. The word itself only draws its boundary around you, so it runs while you hold the house and then ends with your sale.
Call your installing contractor first. A leak at a nail, a lap, a valley, or a flashing is an installation question, and the manufacturer does not insure workmanship. If the contractor opens your roof and finds the shingle itself split, blistered, or shedding its mat, your claim moves across to the manufacturer, and you arrive there with the photographs and a date already attached to them.
It depends on the product and the tier. Extended manufacturer coverage often carries a registration step with a short deadline measured from your installation date, and a credentialed contractor will usually file it as part of closing out your job. Ask who filed it, ask for the confirmation, and then keep that page in the same folder where you already hold your certificate and the invoice.
Only where the contractor wrote it that way, and many do not. Manufacturer coverage carries its own rule: SureStart protection can be transferred to the subsequent property owner during the SureStart period, for the remaining duration of the warranty. Your contractor's letter is the document to check, because the manufacturer cannot influence what a roofing contractor's workmanship warranty says. Read the transfer clause before you list your house, not after a buyer's inspection has already raised it with you.
Start with your installation date, because it places you on the proration schedule and shows whether the non-prorated window is open. Then read your certificate for the product name and the warranty designation, since the length of that opening window is a property of the product. Then read your workmanship letter for its term and its transfer language. If the window closes next year, the difference between a claim filed now and one filed later is measured in how much of the material the manufacturer still owes on a schedule that has already started running. Call the installing contractor to request a photographic inspection, and keep the photos in your folder.
Ask for an inspection before you file any warranty claim — a credentialed crew can photograph the shingles, flashing, and fastening from the roof surface and hand you a written record that your certificate and workmanship letter can be filed beside. Epic Roofing LLC serves Mandeville, Covington, and Baton Rouge. Call (225) 819-3742.
