- KnowYourHome Newsletter
- Posts
- The Truth About Asphalt Shingle Warranties
In partnership with
Are you uncertain about your roof warranty?
Understanding asphalt shingle roof warranties is tricky. In today's newsletter we will unpack each shingle manufacturers warranties, and how to navigate selecting and understanding them.
Luxury Home Features
Check out a new luxury home feature recently posted: https://adampaulrich.com/
Asphalt Shingle Warranties
What Are They And How To Decide?
The Know Before You Hire Series
In the last newsletter I introduced the seven manufacturers that make virtually every asphalt shingle sold in America: GAF, Owens Corning, CertainTeed, Atlas, IKO, TAMKO, and Malarkey.
Asphalt shingle warranties are real, but you have to understand what you get with each option. A shingle manufacturer warranty is provided by the shingle manufacturer, not your local roofer.
When a covered issue arises, the shingle manufacturer is the person who steps up, and either sends you a pallet of shingles (material warranty) or reimburses a local roofer to fix the issue.
Contractor provided labor warranties may be useful, and the contractor will definitely be charging you more for this, but there is the risk that this contractor may not be around when you need warranty coverage. The contractor you select can still matter big-time though.
In today’s newsletter, we’ll explore differences in warranty offerings between different shingle manufacturers.
In a future newsletter we’ll explore how to select from the various products being offered, including budget/premium and different styles of shingle.
Missed The Last Newsletter? There are Only 7 Shingle Manufacturers in the US.
Prorated is the word to know:
The warranty decoder is one word — non-prorated. That's the only number that matters; "Lifetime" and "50-year" are mostly prorated coverage, materials-only coverage that pays pennies when you'd actually file. Real full-coverage windows run ~10 years (GAF base, TAMKO) up to 50 years for the top system warranties.
The best warranty?
The best warranty is a three-way race between CertainTeed SureStart PLUS 5-Star, GAF Golden Pledge, and Owens Corning Platinum. These are the three biggest manufacturers as outlined in the previous newsletter. All three require you to use the elite contractor tier, which means the best warranty is really the best installer.
Does the shingle manufacturer materials warranty matter?
Treat the warranty as a tiebreaker, not a deciding factor:
Most failures aren’t covered - Roughly 80-90% of roof problems trace to installation, not shingle defects — and base warranties only cover material defects.
Proration guts the value - The headline “Lifetime”/“50-year” number is mostly prorated, materials-only coverage that pays little when you’d actually need it.
The exclusions are broad - Wind above the rated speed, hail, poor ventilation, foreign-object impact, “acts of nature,” improper maintenance — all commonly excluded. Storm damage is usually a homeowner’s insurance matter, not a warranty one.
Claims are work - You must prove the defect, prove proper installation and ventilation, and produce registration and records.
What actually protects you?
Hiring a top-tier certified contractor — which both unlocks the meaningful workmanship warranty and gets you the better install.
The contractor’s own workmanship guarantee for the early years.
Your homeowner’s insurance for storm events. The manufacturer’s warranty is a useful backstop for genuine product defects, and a real perk in the rare cases it pays — but it should never be the reason you pick a shingle or a roofer.
How to read any shingle warranty?
Non-prorated period. The years the manufacturer pays 100%. This is the real length of the warranty. Everything after it is discounted.
Prorated period. After the non-prorated window, the payout drops every year based on the roof’s age. A “Lifetime” claim in year 25 might reimburse 20-30% of materials only — often a few hundred dollars against a $15,000+ replacement.
Materials vs. workmanship. A standard warranty covers manufacturing defects in the shingle. It does not cover bad installation. But roughly 80-90% of roof problems come from installation, not defective shingles. Workmanship coverage — the part that actually matters — is only available on the upgraded tiers, and only if a certified contractor installs your roof.
The system requirement. The good warranties require you to buy the manufacturer’s whole “system” — shingles plus matching underlayment, starter strip, ridge cap, and ventilation — installed by their credentialed contractor. Mix brands and you drop to the base warranty.
Download A PDF Showing A Summary Of Each Manufacturer Warranty Options Here:
|
What does it take to keep coverage in force?
The common requirements across all seven:
Use a certified/credentialed contractor — mandatory for every enhanced tier.
Install the full matching system (shingles + that brand’s underlayment, starter, ridge, ventilation). Mixing brands drops you to the base warranty.
Register the warranty on time (Owens Corning, for example, requires registration within 60 days).
Maintain proper attic ventilation — a near-universal exclusion when it’s inadequate.
No layovers (installing new shingles over old).
Keep your paperwork — proof of purchase, installer, and registration. No records, no claim.
Routine roof maintenance and documentation also matter; neglect is a standard reason claims get denied.
Next week we’ll explore the product line offerings from each manufacturer, including:
Why are there different product offerings from each manufacturer?
How do you pick which product to use?
Does the product line really matter?
What are some of the “special” shingle features you might want?
Want to go even deeper? Check out this past newsletter on how to hire a roofer.
The KnowYourHome author, Adam Rich, is a licensed Professional Engineer (P.E.) and Real Estate Salesperson in Ohio, with a background in engineering, construction management, property management, and real estate investing.
Adventure travel built for families
Intrepid Travel has just launched its new Premium Family range — eight new trips across Costa Rica, Sri Lanka, India, Borneo, Vietnam, Morocco, Thailand and Egypt. Small groups of three to five families. Intrepid's most experienced local guides. Immersive, kid-focused activities and elevated stays, with all the logistics handled for you. Watch baby orangutans learn to climb in Borneo. Stargaze at a desert camp in Morocco. Spot leopards on safari in India. These aren't holidays where you watch the world through a window — they're the kind of trips kids remember when they're grown up. Bookings for Intrepid's Family range grew 19% in 2025, and their new Premium tier is their fastest-growing travel style for good reason.
May Maintenance Reminders
See the links for awesome vides of each!
We’d love to hear from you!
Surgery Recovery Starts Before Surgery
Many patients prepare for the procedure itself — but not recovery afterward. HealFast provides physician-formulated nutritional support designed specifically for surgical recovery.
Home Product Pick
Do you know your homes radon level? For less than the cost of a professsional test, you can constantly monitor levels using the Air Things Corentium Home Digital Radon Detector
It is recommend to mitigate radon when levels above 4 pCi/L (picocuries per liter) are found in a home. Below is a map showing the areas of the US with higher radon levels.
Radon Levels In The US
I have been using the AirThings Radon Monitor for years to keep an eye on radon levels in my home.
Homeowner News
High end audio systems for your home have a new twist. The goal now is to hide these systems. You can’t see the speakers, but the audio quality is still very high. Check out these hidden speakers from JBL.
Supply of US Homes Is Trending Upward over the last 5 years. See Chart Below. The National Association of Realtors data can be viewed HERE.
Homeowners are shocked by increases in homeowners insurance costs.
Are you Using AI Yet?
If you are not using AI yet, Claude Cowork’s ability to help you edit documents, spreadsheets, and more is simply amazing.
I recommend giving their Pro plan a try using the KnowYourHome Guest Pass HERE.
Adam Rich a licensed Professional Engineer (P.E.) and Real Estate Salesperson in the state of Ohio. Adam helps discerning homeowners like you take control of the complexity behind your home. Could you use un-biased advise about:
Home Improvements
Home maintenance
New construction decisions and options
Real estate investing or purchases
Real estate engineering matters
Home systems matters
Major renovations
Systems upgrades
Long-term maintenance
Your home’s true condition
I deliver expert-level answers in clear, practical language.
Choose one-time consultation or an ongoing relationship.
I offer homeowners peace of mind through clear insights, practical planning, and calm expertise.
The content of this newsletter is for informational purposes only and does not constitute professional advice. Some of the links included in this newsletter are affiliate links, meaning I may earn a commission if you make a purchase through these links. Always perform your own due diligence before making any financial decisions.