The Roofing Brief, July 2026. A “lifetime” asphalt shingle warranty is not a promise to replace your roof for free for life. It is a limited warranty with a short window of full coverage, followed by a long prorated tail that pays only a shrinking fraction of the shingle material cost and, in most cases, none of the labor. This report parses the current published warranty documents of the major North American shingle brands and the two federal and industry references that govern them, focusing on the parts homeowners misread most: when coverage stops being full, how a transfer changes the clock, and what a claim actually pays. Every figure below is drawn from a warranty document or reference retrieved for this report and cited at the point of use. This is a companion to our Roofing Warranty Comparison Database (2026), which parses the full tier structures side by side; here we go deeper on transfer, proration, and claim reality.
Executive summary
- Every asphalt shingle warranty sold in the United States and Canada is a limited warranty, not a full warranty, under the federal Magnuson-Moss Warranty Act (NRCA, Professional Roofing, 2011).
- The non-prorated window, the only period during which 100% of material defect cost is covered, is typically 10 years for the standard warranties of GAF and CertainTeed, and 5 years for Owens Corning lifetime shingles.
- After the non-prorated period, the remedy drops to a prorated share of replacement shingle material only, with removal and installation labor excluded (NRCA, 2011).
- “Lifetime” applies only to a single-family detached home owned by individuals; on a corporate, HOA, apartment, or institutional building, GAF caps the same warranty at 40 years.
- Most brands allow the warranty to transfer only once, and several require registration within 30 to 60 days of the home sale.
- Two brands convert a transferred long warranty into a fixed clock of roughly 10 years: IKO caps a transferee at 120 months from original installation, and Malarkey limits the second owner to 10 years from the transfer date.
- NRCA states plainly that a warranty “does not necessarily ensure satisfactory performance” and that “warranty length should not be the primary criterion” when choosing shingles.
Key findings
- GAF standard non-prorated period: 10 years. The GAF Smart Choice Protection Period, the interval during which coverage is non-prorated, is 10 years for standard installations; after it, claim compensation shifts to a prorated basis. United States, current warranty documents. Source: GAF, Roof Warranty Comparison Guide, 2026.
- GAF “Lifetime” is owner-and-property specific. “Lifetime” means as long as the original owner (or a properly registered second owner) owns the property, and applies only to a single-family detached residence owned by individuals; for a corporation, government entity, HOA, apartment, office, or multi-use building the term is 40 years. Source: GAF Golden Pledge and standard limited warranty documents, 2026.
- GAF Golden Pledge: 50 years non-prorated. The Golden Pledge Limited Warranty provides 50 years of non-prorated coverage plus 25 years of workmanship coverage and transfers once. Source: GAF Golden Pledge Limited Warranty, 2026.
- Owens Corning non-prorated period: 3 to 5 years. The Owens Corning TruPROtection non-prorated period is 5 years for lifetime shingles and 3 years for 20-year warranted shingles. Source: Owens Corning Standard Limited Warranty on Roofing Shingles (US and Canada).
- Owens Corning transfer fee: 100 dollars. The Owens Corning warranty transfers one time, requires a 100 dollar transfer fee, and must be registered within 60 days after the real estate transfer, after which it cannot be transferred again. Source: Owens Corning Standard Limited Warranty on Roofing Shingles.
- CertainTeed SureStart: 10 years at 100% labor and material. For Landmark and comparable lifetime shingles, the first 10 years are covered under SureStart, during which CertainTeed pays 100% of labor and material to replace defective shingles. Source: CertainTeed SureStart warranty, 2026.
- CertainTeed proration rate: 1/600 per month. After the SureStart period, coverage prorates at 1/600 per month and covers the shingle portion of the cost only. United States and Canada. Source: CertainTeed Asphalt Shingle Residential Products Limited Warranty, 2026.
- IKO Iron-Clad Protection: 3 to 15 years. The IKO non-prorated Iron-Clad Protection Period runs from 3 to 15 years depending on product, extendable to 25 years through the IKO ROOFPRO program. Source: IKO US Limited Warranty for Asphalt Shingles.
- IKO transfer cap: 120 months. On transfer, the IKO warranty and Iron-Clad Protection Period for the new owner are limited to the lesser of 120 months from original installation or the remaining term, then a prorated Beyond Iron-Clad period of 2 years after the transfer. Source: IKO US Limited Warranty for Asphalt Shingles.
- Malarkey Right Start: 7 to 20 years. Malarkey shingles carry an initial non-prorated Right Start Period of 7 to 20 years depending on product. Source: Malarkey Roofing Products warranty documents, 2026.
- Malarkey second-owner cap: 10 years. Malarkey allows one free transfer during the non-prorated period, and the second owner’s warranty is limited to 10 years from the date of transfer, with the application due within 30 days after title transfer. Source: Malarkey Roofing Products warranty documents, 2026.
- TAMKO transfer window: 5 years. The TAMKO fiberglass laminated shingle limited warranty is fully transferable within 5 years of purchase and does not provide for transfers after that window. Source: TAMKO Building Products Fiberglass Shingle Limited Warranty.
- Labor is excluded from prorated claims. During the prorated period the customer receives only a portion of the shingles’ cost, and the costs to remove existing shingles and install new shingles are not included. Source: NRCA, Professional Roofing, “30 years to life,” June 2011.
- Federal law bars branded-parts tie-ins. Under the Magnuson-Moss Warranty Act, a warrantor cannot condition coverage on the consumer using specific branded parts or a specific service provider unless those are provided free or the FTC grants a waiver. Source: US Federal Trade Commission, Magnuson-Moss Warranty Act (15 U.S.C. 2301 et seq.).
- Every written warranty must be labeled Full or Limited. The Magnuson-Moss Warranty Act requires each written consumer product warranty to be designated prominently as either “Full” or “Limited”; all US and Canadian asphalt shingle warranties are Limited. Source: US Federal Trade Commission; NRCA, 2011.
How the coverage clock actually works
A shingle warranty has two stages, and the difference between them is where most homeowner confusion lives. Stage one is the non-prorated period. During it the manufacturer covers the full cost of replacement material for a covered manufacturing defect, and in the case of system warranties installed by a certified contractor, labor as well. Stage two is the prorated period, which fills the remaining “lifetime” or fixed term. In stage two the remedy is reduced according to a formula tied to how many months of service the roof has already delivered, and it is capped at the value of replacement shingles, not the installed cost of a new roof.
The named non-prorated windows differ by brand. GAF calls it the Smart Choice Protection Period and sets it at 10 years for the standard warranty (GAF, 2026). CertainTeed calls it SureStart and sets it at 10 years for its lifetime shingles, paying 100% of labor and material during that decade (CertainTeed, 2026). Owens Corning calls it TruPROtection and sets it at 5 years for lifetime shingles and 3 years for 20-year shingles (Owens Corning). IKO calls it Iron-Clad Protection and sets it at 3 to 15 years depending on product (IKO). Malarkey calls it the Right Start Period and sets it at 7 to 20 years depending on product (Malarkey).
What a prorated claim actually pays
NRCA describes the prorated remedy directly: “Coverage for the remainder of a warranty’s length is limited to the cost of replacement shingles prorated by the amount of use received,” and “costs to remove existing shingles and install new shingles are not included” (NRCA, Professional Roofing, June 2011). In practice this means a claim approved in year 20 of a “lifetime” roof does not pay for a new roof. It pays a manufacturer-calculated fraction of the wholesale shingle cost, and the homeowner still pays the tear-off and reinstallation labor, which on most residential jobs is the larger half of the bill.
CertainTeed publishes its own proration rate, which lets the math be shown exactly. After the 10-year SureStart period, coverage prorates at 1/600 per month and applies to the shingle portion only (CertainTeed, 2026). The Roofing Brief calculations section below works that rate through to the dollar-decline curve.
Transfers: where “lifetime” quietly becomes a fixed term
Most brands allow the warranty to transfer to a buyer, but almost always only once, and often on a much shorter clock than the original owner enjoyed. Owens Corning permits one transfer for the remaining term, charges a 100 dollar fee, and requires registration within 60 days of the sale, after which no further transfer is allowed (Owens Corning). GAF allows a single transfer registered within 60 days (GAF). CertainTeed allows one free transfer of SureStart from the original owner to the first subsequent owner during the SureStart period (CertainTeed). Malarkey allows one free transfer during the non-prorated period but caps the second owner at 10 years from the transfer date, with the application due within 30 days of title transfer (Malarkey). IKO limits a transferee to the lesser of 120 months from original installation or the remaining term, then adds a 2-year prorated tail (IKO). TAMKO makes its laminated shingle warranty fully transferable within 5 years of purchase and not after (TAMKO).
The practical takeaway for a homebuyer: a “lifetime” roof advertised in a listing may, once the home changes hands, carry only a fixed 10-year or shorter prorated warranty, and only if the seller or buyer files the transfer paperwork inside a 30 to 60 day window.
Common exclusions that void or limit coverage
NRCA lists exclusions common across asphalt shingle warranties: defects in or improper application of the roof deck or underlying material, inadequate attic ventilation, improper storage of shingles, and traffic or storage of materials on the roof (NRCA, 2011). Manufacturer-labor and workmanship problems are also generally outside the material warranty unless a certified-contractor system warranty was purchased. Federal law shapes what a warrantor may and may not require. Under the Magnuson-Moss Warranty Act the warranty must be prominently designated Full or Limited, and the warrantor cannot tie coverage to specific branded parts or a specific installer unless those are supplied free or the FTC has granted a waiver (FTC, 15 U.S.C. 2301 et seq.).
Roofing Brief calculations (original synthesis)
The figures in this section are original calculations by The Roofing Brief derived from the cited published warranty terms. They are labeled as calculations, not as manufacturer-published statistics.
1. Median standard non-prorated period: 10 years
Roofing Brief calculation. Taking the documented non-prorated period for each brand’s flagship lifetime line, GAF 10 years, CertainTeed 10 years, Owens Corning 5 years, and IKO up to 15 years, the median is 10 years. Inputs: GAF Smart Choice Protection Period (10), CertainTeed SureStart (10), Owens Corning TruPROtection lifetime (5), IKO Iron-Clad flagship (15). Limitation: Malarkey’s Right Start spans 7 to 20 years by product and is reported as a range rather than a single flagship figure, so it is excluded from the median; Owens Corning’s 3-year figure applies to 20-year, non-lifetime shingles and is likewise excluded. The takeaway holds directionally: on a “lifetime” roof, full non-prorated coverage typically ends around year 10.
2. The CertainTeed proration curve
Roofing Brief calculation. Using CertainTeed’s own published rate of 1/600 per month applied after the 10-year SureStart period, the shingle-material credit declines linearly to zero at 600 months, which is 50 years from installation. At 300 months (year 25), the credit equals (600 minus 300) divided by 600, or 50% of the replacement shingle material cost. At 450 months (year 37.5), the credit is 25%. Labor is excluded throughout. Inputs: CertainTeed published proration rate (1/600 per month) and 10-year non-prorated SureStart period. Limitation: this models CertainTeed’s stated formula only; other brands use different, sometimes undisclosed, proration schedules, so the curve is not a cross-brand average.
3. Transfer registration is a 60-day median deadline
Roofing Brief calculation. Of the brands that set a day-count deadline to register a transfer after a home sale, GAF (60 days), Owens Corning (60 days), and Malarkey (30 days), the median deadline is 60 days. At least four of the documented brands (GAF, Owens Corning, CertainTeed, Malarkey) restrict the warranty to a single transfer. Inputs: brand transfer terms cited above. Limitation: TAMKO uses a 5-year-from-purchase window rather than a post-sale day count and is excluded from the median; deadlines can vary by warranty tier and revision date.
4. Two brands turn a transferred long warranty into a ~10-year clock
Roofing Brief calculation. Counting brands whose documents convert a transferred long or lifetime warranty into a fixed term near 10 years: IKO caps a transferee at 120 months (10 years) from original installation, and Malarkey caps the second owner at 10 years from the transfer date. That is at least 2 of the documented brands. Owens Corning instead transfers the remaining original term once. Inputs: IKO and Malarkey transfer terms. Limitation: this is a count of documented brands, not an exhaustive industry census; exact caps vary by product line.
Tables
Table 1. Non-prorated period and transfer terms by brand
| Brand | Non-prorated period name | Non-prorated length | Transfers allowed | Registration window |
|---|---|---|---|---|
| GAF | Smart Choice Protection Period | 10 years (standard) | Once | 60 days after sale |
| Owens Corning | TruPROtection | 5 yr lifetime / 3 yr 20-year | Once (100 dollar fee) | 60 days after sale |
| CertainTeed | SureStart | 10 years | Once (free, during SureStart) | During SureStart period |
| IKO | Iron-Clad Protection | 3 to 15 years by product | Once (transferee capped at 120 months) | Per warranty terms |
| Malarkey | Right Start Period | 7 to 20 years by product | Once (2nd owner capped 10 years) | 30 days after title transfer |
| TAMKO | Limited (non-prorated term varies) | Varies by product | Fully transferable within window | Within 5 years of purchase |
Sources: GAF, Owens Corning, CertainTeed, IKO, Malarkey, and TAMKO published warranty documents, 2026. Atlas terms were not documented with sufficient precision for inclusion.
Table 2. What is covered before and after the non-prorated period
| Item | Non-prorated period | Prorated period |
|---|---|---|
| Replacement shingle material | 100% of cost | Prorated share only |
| Tear-off (removal) labor | Sometimes (system warranties) | Excluded |
| Installation labor | Sometimes (system warranties) | Excluded |
| Basis of value | Full material cost | Reduced by months of use |
Source: NRCA, Professional Roofing, June 2011; brand warranty documents, 2026.
Table 3. CertainTeed proration credit over time (Roofing Brief calculation)
| Year from install | Months | Shingle-material credit | Labor covered |
|---|---|---|---|
| 0 to 10 | 0 to 120 | 100% (SureStart) | Yes, during SureStart |
| 25 | 300 | 50% | No |
| 37.5 | 450 | 25% | No |
| 50 | 600 | 0% | No |
Roofing Brief calculation using CertainTeed’s published 1/600-per-month rate after the 10-year SureStart period. Illustrative of one brand’s formula only.
Recommended charts
- Non-prorated window by brand (bar chart). Data: named non-prorated period length per brand. Source: brand warranty documents. Insight: how few years of full coverage a “lifetime” warranty really includes. Citation-worthy because it visualizes the gap between marketing and the covered window.
- Proration decay curve (line chart). Data: CertainTeed 1/600-per-month credit by year. Source: CertainTeed warranty, Roofing Brief calculation. Insight: the value of a prorated claim falling toward zero. Citation-worthy as a plain-language depreciation visual.
- Transfer registration deadline by brand (bar chart). Data: 30 to 60 day windows and the TAMKO 5-year window. Source: brand warranty documents. Insight: how easily a transfer lapses at closing.
- Covered vs excluded cost stack (stacked bar). Data: material vs labor share of a reroof, mapped to what a prorated claim pays. Source: NRCA labor-exclusion language. Insight: why an approved claim rarely funds a full roof.
Methodology
Source selection prioritized primary documents: manufacturer limited warranty texts, the Federal Trade Commission’s Magnuson-Moss Warranty Act materials, and the National Roofing Contractors Association’s Professional Roofing analysis. Each brand figure was taken from that brand’s own published warranty language or its official warranty resource pages. Where a brand publishes ranges by product line (IKO, Malarkey, TAMKO), the range is reported rather than a single number. Conflicting or version-dependent figures were resolved in favor of the most recent published warranty document and flagged as version-dependent. Derived numbers are computed only from cited inputs and are labeled as Roofing Brief calculations. Figures that could not be verified from a retrieved source, including any claim-denial or approval rates, were excluded rather than estimated. Geography is the United States and Canada. Warranty terms change by product line and revision; verify the specific warranty document for a specific product before relying on any figure. Last updated July 2026.
Source quality ranking
Tier 1 (primary): US Federal Trade Commission, Magnuson-Moss Warranty Act (15 U.S.C. 2301 et seq.); manufacturer limited warranty documents from GAF, Owens Corning, CertainTeed, IKO, Malarkey, and TAMKO; National Roofing Contractors Association, Professional Roofing.
Tier 2 (credible secondary): Manufacturer official warranty resource and comparison pages that reproduce warranty terms.
Tier 3 (expert commentary): Established roofing-contractor explainers used only to locate primary documents, not as the basis for any figure.
Excluded: Unsourced roundup pages, AI-generated summaries, and any figure not traceable to a retrieved primary document. Atlas warranty specifics were excluded for insufficient documentation in this pass.
Journalist-friendly additions
Most quotable statistics
- Full, non-prorated coverage on a “lifetime” shingle roof typically ends around year 10 (GAF and CertainTeed standard warranties, 2026).
- After the non-prorated period, a warranty claim pays a prorated share of shingle material only, with tear-off and installation labor excluded (NRCA, 2011).
- On a corporate, HOA, or apartment building, GAF’s “lifetime” warranty is capped at 40 years (GAF, 2026).
- IKO limits a warranty transferee to 120 months from original installation (IKO).
- Owens Corning charges a 100 dollar fee and a 60-day deadline to transfer its warranty once (Owens Corning).
Data limitations
Warranty terms vary by product line, tier, and revision date, so a single brand can carry several different non-prorated periods at once. This report does not include claim-approval or claim-denial rates because no verified claims dataset was available; statements about “what gets paid” describe the documented coverage mechanics, not observed claim outcomes. Atlas terms were omitted for insufficient primary documentation. Proration math is shown for CertainTeed because it publishes an explicit rate; most brands do not publish a comparable formula.
Downloadable dataset recommended fields
Brand; product line; warranty tier; non-prorated period name; non-prorated length (years); prorated schedule; labor covered in non-prorated period (yes/no); transfers allowed (count); transfer fee (USD); transfer registration deadline; second-owner cap; “lifetime” definition; non-residential cap (years); source document; source URL; document revision date.
Press summary (about 150 words)
A “lifetime” asphalt shingle warranty is a limited warranty, not free-roof-for-life coverage. Parsing the current published warranties of GAF, Owens Corning, CertainTeed, IKO, Malarkey, and TAMKO, The Roofing Brief finds that full, non-prorated coverage typically ends around year 10, after which claims pay only a prorated share of shingle material and exclude the tear-off and installation labor that make up much of a reroof bill. “Lifetime” applies only to individual-owned single-family homes; GAF caps the same warranty at 40 years on corporate or multi-unit buildings. Transfers are usually allowed only once and must be registered within 30 to 60 days of a sale, and two brands convert a transferred warranty into a fixed clock near 10 years. The National Roofing Contractors Association cautions that warranty length “should not be the primary criterion” when choosing shingles. Terms vary by product and revision; homeowners should read the specific warranty document.
Suggested headlines
- Your “Lifetime” Roof Warranty Really Lasts About 10 Years
- What a Roof Warranty Actually Pays: Shingles Yes, Labor No
- The 60-Day Trap That Voids a Home’s Roof Warranty at Closing
- When “Lifetime” Becomes 40 Years: The Corporate Roof Warranty Loophole
- How a Transferred Roof Warranty Quietly Shrinks to a 10-Year Clock
Frequently asked questions
How long is a shingle warranty actually non-prorated? For the standard warranties of GAF and CertainTeed the non-prorated Smart Choice or SureStart period is 10 years; Owens Corning’s TruPROtection is 5 years for lifetime shingles (brand warranty documents, 2026).
What does “prorated” mean for a roof claim? After the non-prorated period, the payout is reduced by how many months of service the roof has delivered and is limited to a share of replacement shingle material, with removal and installation labor excluded (NRCA, 2011).
Does a roof warranty cover labor? Labor is generally covered only during the non-prorated period of a certified-contractor system warranty; in the prorated period the tear-off and installation labor are excluded (NRCA, 2011).
What does “lifetime” mean on a shingle warranty? It means as long as the original owner, or a properly registered second owner, owns the single-family detached home; it does not mean a fixed number of years for the shingles themselves (GAF, 2026).
Is a lifetime warranty still lifetime on a rental or apartment building? No. GAF caps the warranty at 40 years for corporations, HOAs, apartment, office, and multi-use buildings (GAF, 2026).
Can I transfer my roof warranty to the home’s buyer? Usually once. Owens Corning allows one transfer with a 100 dollar fee within 60 days of sale; GAF allows one transfer within 60 days; Malarkey allows one within 30 days of title transfer (brand warranty documents, 2026).
Does the warranty stay “lifetime” after I sell? Often not. IKO caps a transferee at 120 months from original installation, and Malarkey caps the second owner at 10 years from the transfer date (IKO; Malarkey).
Is there a fee to transfer a roof warranty? It depends on the brand. Owens Corning charges 100 dollars; CertainTeed and Malarkey allow one free transfer during their non-prorated periods (brand warranty documents, 2026).
What voids a shingle warranty? Common exclusions include roof deck or underlayment defects, inadequate attic ventilation, improper shingle storage, and traffic or material storage on the roof (NRCA, 2011).
Can a manufacturer require me to use its own branded parts to keep coverage? Not unless it provides them free or holds an FTC waiver; the Magnuson-Moss Warranty Act bars branded-parts tie-ins (FTC, 15 U.S.C. 2301 et seq.).
Related reports
See our Roofing Warranty Comparison Database (2026) for the full tier structures, the Roof Replacement Frequency Report for how often roofs actually reach warranty age, the Roof Age at Home Sale Report for the transfer context, and the Insurance Non-Renewal by Roof Age report. Start at the Roofing Brief Learn hub.
Reviewed by The Roofing Brief Team. Last reviewed July 2026.