Josh Brooks Construction & Renovation Inc. — licensed general contractor, 30+ years' experience. We run every job start to finish as your GC. We don't take subcontract work for other GCs or owner-managed ('self-GC') jobs, and every project requires a deposit to schedule and begin — no exceptions. If you're not ready to commit a deposit, please contact another contractor.
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Data You Can Trust

Owens Corning vs. GAF Roofing in Colorado: A Contractor’s Perspective

38

billion-dollar hailstorms in Colorado 1980–2024

NOAA

$1.9B

damage from May 2024 Front Range hailstorm

NOAA

96%

ROI on a minor kitchen remodel at resale

2025 Cost vs. Value Report

86%

of basement finishing costs recovered at resale

NAR / NARI Report

“Both are strong manufacturers and I’ve installed thousands of squares of each since 2014. The real differentiator is the warranty and the local distributor network — which matters when you need materials fast after a storm.”

Josh Brooks

Licensed General Contractor CON-24-0152 | Northern Colorado Since 2014

Josh Brooks Construction and Renovation Inc. — License CON-24-0152

Owens Corning vs GAF Roofing
Colorado Shingle Comparison

The two largest roofing shingle manufacturers compared for Colorado hail performance, warranty terms, and installed cost on the Front Range.

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Owens Corning and GAF together control over 80% of the U.S. roofing shingle market. Both make excellent products. Both offer Class 4 impact-resistant options for Colorado’s hail environment. But they differ in warranty terms, preferred contractor programs, and specific product performance at altitude. Josh Brooks Construction and Renovation Inc. installs both brands across Northern Colorado. Here’s the honest comparison.

Brand Overview

Owens Corning is headquartered in Toledo, Ohio and produces Duration Storm (Class 4), TruDefinition Duration, and WeatherGuard HP lines. GAF is headquartered in Parsippany, New Jersey and produces Timberline HDZ, Timberline CS (Class 4), and Grand Sequoia lines. Both brands are available through ABC Supply and SRS Distribution in Northern Colorado.

Class 4 Products — Colorado’s Most Important Category

Owens Corning Duration Storm: Class 4 UL 2218, 130-mph wind rating, SureNail technology for fastener holding. GAF Timberline CS: Class 4 UL 2218, 130-mph wind rating, LayerLock technology for shingle alignment. Both products perform comparably in Colorado hail events. Both qualify for insurance premium discounts of 20-30% from most Colorado carriers. Josh Brooks Construction and Renovation Inc. installs both.

Warranty Comparison

Owens Corning Duration Storm: Limited Lifetime warranty (transferable once), 10-year SureStart Plus on labor. GAF Timberline CS: Golden Pledge warranty available through GAF Master Elite contractors (50-year non-prorated, 25-year workmanship). The GAF Golden Pledge warranty is generally considered the stronger warranty in the industry — but requires installation by a GAF Master Elite contractor. Josh Brooks Construction and Renovation Inc. is pursuing this certification.

Cost Comparison in Colorado

Owens Corning Duration Storm installed in Colorado: $9,500–$20,000 for a typical home. GAF Timberline CS installed: $9,000–$19,000. Pricing varies by roof size, pitch, and complexity. Both brands cost approximately the same at the contractor level. Most Colorado homeowners cover the majority of this cost through a hail damage insurance claim.

Josh Brooks Construction and Renovation Inc. Recommendation

Both are excellent Class 4 products for Colorado. Owens Corning Duration Storm has a slight edge in shingle nail zone innovation (SureNail strip). GAF Timberline CS has the better warranty path with Golden Pledge. For most Colorado homeowners filing an insurance claim, either product is an excellent choice. Josh Brooks helps you choose based on your specific insurance carrier’s discount program and your long-term goals.

FAQ

Common Questions

Is Owens Corning or GAF better for Colorado hail?

Both are excellent for Colorado hail when you choose their Class 4 products — Owens Corning Duration Storm and GAF Timberline CS. Both carry UL 2218 Class 4 ratings and 130-mph wind ratings. Both qualify for Colorado insurance premium discounts of 20-30%. The difference comes down to warranty terms and contractor preference — not product performance in hail.

How much do Owens Corning vs GAF shingles cost installed in Colorado?

Owens Corning Duration Storm and GAF Timberline CS cost approximately $9,000–$20,000 installed on a typical Colorado home depending on roof size and pitch. Both brands are similarly priced at the contractor level. Most Colorado homeowners cover the majority of this cost through a hail damage insurance claim — paying only their deductible. Call 720-828-7997 for a free estimate.

Does Josh Brooks Construction and Renovation Inc. install both Owens Corning and GAF?

Yes. Josh Brooks Construction and Renovation Inc. installs Owens Corning, GAF, Malarkey, and CertainTeed shingles throughout Northern Colorado. We help you choose the right brand and product for your insurance carrier’s discount program, your warranty goals, and your budget. Free written estimates on all brands.

Which roofing shingles qualify for insurance discounts in Colorado?

Class 4 impact-resistant shingles from any manufacturer qualify for insurance premium discounts of 20-30% from most Colorado carriers. This includes Owens Corning Duration Storm, GAF Timberline CS, Malarkey Vista AR, and CertainTeed Landmark IR. The discount varies by insurance company — ask your agent which Class 4 products qualify before your roof replacement.

BY THE NUMBERS

Why Colorado Homeowners Act Fast After a Storm

38
Billion-dollar hailstorms have hit Colorado since 1980 — more than any other storm type. (NOAA)
$1.9B
Damage from the May 2024 Denver hailstorm — 2nd costliest in Colorado history. (NOAA)
More likely to file a hail claim if your roof is 20+ years old. (Insurance industry data)
$9,526
National average roof replacement cost. Colorado typically runs 10–15% above that. (RubyHome/BLS 2024)

“I’ve been working roofs in Northern Colorado since 2014. I’ve seen hail take a perfectly maintained 20-year-old roof from functional to failing in a single afternoon — and most homeowners don’t even know until their ceiling starts dripping two months later. Get it inspected before the insurance window closes.”

— Josh Brooks, Licensed General Contractor & Roofer — License CON-24-0152

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No pressure. No obligation. Josh personally responds within 24 hours. Serving all of Northern Colorado.

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CON-24-0152 • $1M/$2M Insured • Senior & Veteran Discounts • Longmont CO 80501

Insurance-claim roofing — how we handle itUnder Colorado's Residential Roofing Bill of Rights, you may cancel for a full deposit refund within 72 hours of signing — and, if your insurer denies the claim, within 72 hours of that denial. Once that window closes, your deposit is committed to your project and is non-refundable except as required by law for work not yet performed. We never collect your insurance deductible upfront — it's due at completion — and by law we cannot waive or rebate it.

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