“We are extremely satisfied with Atrium Roofing and truly grateful for their outstanding service! After the recent storm, we were in a hurry to have our roof inspected and repaired, and they went above and beyond by accommodating us over the weekend in the Kirby/Converse area. Their team was professional and responsive. They took the time to explain the condition of our roof and provide us with all the details we needed to understand the situation and our options. Their willingness to help us on short notice gave us great peace of mind during a stressful time. We sincerely appreciate their time, professionalism, and dedication to their customers. We highly recommend Atrium Roofing to anyone looking for reliable, knowledgeable, and professional roofing services. Thank you for your excellent service!”
IMPACTSHIELD™ Class 4 Roofing, Engineered for Central Texas
4.9 on Google · 317 reviewsThe highest impact rating UL 2218 assigns, with the certification paperwork your insurance carrier asks for. Class 4 shingles from GAF, Owens Corning or Malarkey, installed as a complete engineered system.
Owens Corning Platinum Preferred
Owens Corning Product Excellence Award, 8 years running (2019–2026)
GAF Master Elite® Contractor
TAMKO Pro Platinum
Atlas PRO+ Gold Select
Malarkey Emerald Pro
A+ Rated by BBB
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GuildQuality · 100% Would Recommend
Nextdoor Neighborhood Fave 2021 and 2025
If hail is your worry or your carrier wants a Class 4 roof, start here.
IMPACTSHIELD™ is for homeowners in higher hail exposure, homeowners planning to stay in the house long enough for the roof's full service life to matter, and homeowners whose carrier rewards a documented impact-resistant roof. If you are weighing the two tiers, our Class 3 vs Class 4 article lays out the comparison, and the FOUNDATION™ system page covers the Class 3 baseline. STORMLOCK™ and LEGACY™ reach Class 4 by different engineering routes, and THERMALGUARD™ is the option organized around energy performance rather than impact class.
The same system, one impact tier higher.
IMPACTSHIELD™ is what FOUNDATION™ becomes when the roof covering steps from UL 2218 Class 3 to Class 4.
Everything that makes an Atrium roof an engineered system stays the same here: the assembly is specified as a whole, the components are chosen to meet the manufacturer's requirements, and the resulting system warranty is registered in your name. What changes is the impact rating of the shingle itself.
That is a deliberate, narrow difference. We are not selling IMPACTSHIELD™ as a designer or premium tier, and we are not going to tell you a Class 4 roof cannot be damaged by hail. What it is: the highest documented impact rating the standard assigns, installed correctly, with the certification paperwork you need in hand.
When the step up from Class 3 is worth it
Class 4 is UL 2218's highest tier, assigned to shingles that withstand a 2-inch steel ball impact test. Class 3, the tier below it, is tested at 1.75 inches and is a sensible baseline for most Central Texas roofs. The question is not which tier is better on paper — it is whether your exposure and your timeline justify the difference.
For homeowners in the harder-hit hail corridors around San Antonio, New Braunfels, and the Hill Country, or anyone planning to stay in the house long-term, the documented rating plus a potential carrier discount usually makes the math work. For a shorter horizon and lower exposure, it may not.
What we will not tell you is that Class 4 makes a roof hail-proof. The manufacturers' own disclaimers are explicit that laboratory impact testing does not correlate perfectly with real-world hail, which varies in size, density, and angle in ways a steel ball does not. Class 4 is the highest documented protection available. It is not immunity.
What an IMPACTSHIELD™ roof is made of
This is a representative configuration, not a fixed spec sheet. Component selection varies by project, and the exact list is written on your proposal before anything is ordered.
The primary roof covering is a UL 2218 Class 4 impact-rated architectural shingle. Representative options are GAF Timberline UHDZ with UltraMat, Owens Corning Duration STORM, and Malarkey Vista — all three independently UL 2218 Class 4 rated per their manufacturers' own current data sheets. On the GAF option, the Class 4 rating applies to the UltraMat-labeled packaging specifically, not to any UHDZ box.
Same-manufacturer hip and ridge, not a cut-up field shingle. It is part of the component minimum a manufacturer requires before it will register an enhanced system warranty, and it is standard on every Atrium engineered system.
Standard ventilation, balanced intake and exhaust sized to code, is included in the replacement price. Enhanced ventilation, such as solar or powered attic fans or added intake beyond the standard design, is quoted separately.
Underlayment, ice and water barrier, starter course, and flashings follow the same five-layer system described in “The system, not the shingle” on our roof replacement page. Same layers, same standards — IMPACTSHIELD™ does not change them.
See a full IMPACTSHIELD case study: a steep 2-story Class 4 roof replacement in Indian Springs, San Antonio, TX 78261.
See a full IMPACTSHIELD case study: a Class 4 roof replacement in Bergheim, TX.
Colors for this system
22 colors across 3 shingle lines from GAF, Owens Corning and Malarkey. The color comes last: we choose the system and manufacturer first, then the line, then the color.
Price an IMPACTSHIELD™ roof from your address
We measure your roof from aerial imagery and apply the IMPACTSHIELD™ per-square rate. No email or phone number needed to see the number.
Your estimate
Enter the property address. We return roof area in squares, including waste, and the installed cost range that area implies at our published rates. Nothing is gated behind a contact form.
What the step up to Class 4 actually costs — and earns back
The upgrade premium is a known, bounded number. The discount side depends on your carrier — so here's the math, not a promise.
vs. FOUNDATION™, our Class 3 baseline, for a typical San Antonio single-family roof.
Many carriers offer a wind-and-hail discount for a documented Class 4 roof — amount depends entirely on your carrier and policy. See how the paperwork works.
the top tier Underwriters Laboratories assigns.
What this roof could be worth to you — in your numbers
Enter numbers from your own policy. This is an illustration, not a forecast.
Enter yours from your policy.
Use the wind/hail line, not the all-peril line. Many Texas policies list it as a percentage.
Ask your agent for this in writing. This page covers a Class 4 roof.
Ask about a cosmetic damage exclusion. Some carriers apply one to roofs that receive an impact-resistant credit. It generally means they will not pay for hail marks that change how the roof looks but not how it performs. Ask your agent, and get the answer in writing before you decide.
Each replacement paid through insurance costs you one deductible. Pick the scenario you want to see.
Starting value is an illustration. Use your roofer's quote.
Enter your dwelling coverage and wind/hail deductible above.
Enter your agent's quote above to see this.
Pick how many replacements to model above.
Premium savings from the discount you entered, plus skipped deductibles from the scenario you picked.
Ask about a cosmetic damage exclusion. Some carriers apply one to roofs that receive an impact-resistant credit. It generally means they will not pay for hail marks that change how the roof looks but not how it performs. Ask your agent, and get the answer in writing before you decide.
What this leaves out
- Roof prices that rise over time.
- How filing claims can affect your premium.
- Anything your policy does not cover.
- Rules that are specific to your carrier.
Class 4 impact-resistant shingles can qualify for a premium discount in Texas. The amount is set by your insurance carrier, so ask your agent what yours would be.
Why roof age changes what insurance pays
A $10,000 roof on a house insured for $200,000 with a 2% ($4,000) deductible:
| Roof age | Roof's value | Minus deductible | Policy pays |
|---|---|---|---|
| 5 years | $8,500 | −$4,000 | $4,500 |
| 10 years | $7,000 | −$4,000 | $3,000 |
| 20 years | $4,000 | −$4,000 | $0 |
Source: Texas Department of Insurance example, as published by TDI.
On actual-cash-value policies, payments fall as the roof gets older. Some policies use a roof payment schedule instead, and that varies by carrier. A new roof starts at age zero.
How to claim a credit
- At closeout, you get the impact-resistant certification when it applies to your system. See the Power Package.
- Send it to your agent. Ask them to apply the credit in writing.
- Ask the cosmetic-exclusion question before you sign anything.
What the Class 4 test actually is
To earn a Class 4 rating, a shingle has to survive UL 2218's steel ball test: a 2-inch solid steel ball dropped from 20 feet, twice on the same spot. The shingle passes if there's no cracking, tearing, or rupture on the underside — UL 2218 measures functional damage, not cosmetic appearance.
How each manufacturer gets there differs. Malarkey's Vista shingle uses NEX®, its own SBS-rubberized-asphalt core, to absorb and disperse the impact. GAF's Timberline UHDZ and Owens Corning's Duration STORM reach the same Class 4 rating through their own reinforced-mat formulations. All three are independently tested and rated — see the FAQ below for which one fits a given roof.The impact-resistant certification your carrier needs to apply a discount is one of the documents in your Power Package — ready to give to your agent.
No voicemail. Alex has a real conversation about the problem and gets it to our team.
The rating only helps if it's documented
Class 4 impact-resistant roofs can qualify for wind-and-hail premium discounts with some carriers. Whether yours does, and by how much, depends on the carrier and the policy — the mechanics, including the impact-resistant certification document your carrier will ask for, are covered on our Power Package page.
A higher impact rating also does not change how a claim gets evaluated after a storm. Carriers still separate functional damage from cosmetic damage, and that distinction is where most hail claims are won or lost — we walk through it on our hail damage page.
0% APR financing for up to 12 months. Or spread the cost over fixed monthly payments of 60 to 180 months. Financing is subject to credit approval. The terms shown here are examples, and your actual rate, term, and payment depend on the lender's decision.
The manufacturer's warranty first. Ours underneath it.
A manufacturer-backed system warranty ranks above any contractor's own warranty for one reason: it survives the contractor. If a roofing company closes, changes hands, or simply stops answering the phone, a warranty backed by Owens Corning or GAF is still honored. A contractor's warranty is only worth as much as the contractor still being in business, and that is as true of ours as it is of anyone's.
Atrium holds Owens Corning Platinum Preferred, the top tier of the Owens Corning contractor network, which makes the enhanced Owens Corning system warranty available on our installs. Atrium is also a GAF Master Elite® Contractor, the only GAF certification tier that can offer the GAF Golden Pledge® Limited Warranty. These system warranties cover material and, at these tiers, workmanship, and they are registered with the manufacturer in your name.
For the Owens Corning and Malarkey options, these are contractor-certification-tier warranties, so the maximum available does not change because the shingle is Class 4 instead of Class 3. GAF is different: Under GAF's Golden Pledge®, installation-error coverage differs by shingle line: 25 years non-prorated on Timberline HDZ®, the GAF option in our FOUNDATION™ system, and 30 years non-prorated on Timberline UHDZ® with UltraMat™ (IMPACTSHIELD™) and Timberline ArmorShield® II, which GAF's warranty lists as Timberline® AS II (STORMLOCK™).
Owens Corning Duration STORM installs
Eligible for the Owens Corning Platinum Protection warranty, available only at Platinum Preferred standing.
GAF Timberline UHDZ with UltraMat installs
Eligible for the GAF Golden Pledge® Limited Warranty on qualifying GAF roofing systems, available because Atrium is a GAF Master Elite® Contractor. The tier-by-tier difference is explained on our brands and certifications page.
Malarkey Vista installs
Eligible for the Malarkey Certified Pro Warranty, available at Emerald Pro standing, available because Atrium holds the Malarkey Emerald Pro certification. It requires a complete Malarkey Secure Choice™ roof system — the shingles installed together with Malarkey's own accessories — rather than the shingle alone.
Atrium's workmanship layer
Atrium backs every roof replacement with a written 10-year workmanship warranty. It is non-prorated, so coverage in year ten is identical to year one, and it is fully transferable to the next owner. If a covered installation defect appears, we cover the labor and the materials to correct it.
The warranty covers the roof replacement we performed. It is our installation of your new roof system that carries the ten years.
It covers our installation, and that is all it covers. It is not insurance and it does nothing for hail, wind, or anything else an insurance claim would handle. The manufacturer's warranty on the shingles themselves is a separate document.
If you want the mechanics behind all of this — how the two documents differ, what quietly voids them, and how the certification tier decides which one can be registered — our roof warranty guide walks through it.
Whichever warranty applies to your system is registered in your name and delivered as part of the Power Package — up to five documents, depending on your roofing system; on a shingle system that includes the supplier's material invoice.
IMPACTSHIELD™ FAQs
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