GAF — Timberline HDZ, UHDZ, and ArmorShield II.
The three GAF shingle lines Atrium installs, the technology built into each, and what GAF Certified Plus makes available on your warranty.
Atrium holds GAF Certified Plus
A tier above standard GAF certification — and the tier that decides which manufacturer warranty you can be issued.
GAF's contractor program is tiered, and the tier decides the warranty. Standard GAF certification — which requires licensing where a jurisdiction imposes one, current insurance, and a reviewable track record — allows a contractor to offer the System Plus limited warranty. Certified Plus is a step above that, carrying the same requirements at a higher standard, and it's what makes the Silver Pledge warranty available on your roof. The full explanation is on our brands and certifications page.
The three lines we install most
GAF makes more than these three, but these are the ones that show up on Atrium proposals.
GAF's best-selling architectural shingle, and the one specified on our FOUNDATION™ system. Built with LayerLock® Technology, which mechanically fuses the shingle's layers together, and the StrikeZone® nailing area — GAF's widest nailing area, designed to reduce installer error. UL 2218 Class 3 impact-rated.
See it on FOUNDATION™The premium step up from HDZ, specified on our IMPACTSHIELD™ system. Same LayerLock® and StrikeZone® platform, with a thicker profile, GAF's Dual Shadow Line® for deeper dimension, and UltraMat™ high-performance fiberglass mat technology that brings the shingle up to a UL 2218 Class 4 impact rating.
See it on IMPACTSHIELD™GAF's Class 4 shingle built around SBS-modified rubberized asphalt rather than an added mat layer, specified on our STORMLOCK™ system. It reaches the same UL 2218 Class 4 rating as UHDZ with UltraMat through a different engineering path — flexibility in the asphalt itself rather than a reinforcing layer.
See it on STORMLOCK™Two color collections, plus the ArmorShield II range
GAF changes color availability by region, so we bring current samples to your consultation rather than publishing a list here.
Timberline HDZ ships in two named collections — the High Definition® palette and the newer Bold Definition® colors — and both UHDZ with UltraMat and ArmorShield II draw from GAF's broader Timberline range. If you already have a color in mind, tell us during your assessment and we'll confirm current regional availability before anything is ordered.
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. We also hold GAF Certified Plus, which makes the GAF Silver Pledge available. These system warranties cover material and, at these tiers, workmanship, and they are registered with the manufacturer in your name.
Timberline HDZ, UHDZ with UltraMat, and ArmorShield II installs
All three are eligible for the GAF Silver Pledge, available at Certified Plus standing. We do not offer the GAF Golden Pledge — that requires GAF Master Elite certification, a tier we don't hold. These are contractor-certification-tier warranties, not shingle-tier ones, so the ceiling is the same across all three lines. The tier-by-tier detail is on our brands and certifications page.
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.
Whichever warranty applies to your system is registered in your name and delivered as part of the Power Package — the five documents every Atrium customer receives at closeout.
GAF FAQs
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