GAF Timberline UHDZ with UltraMat Timberline Uhdz With Ultramat Slate Shingles
A bold dimensional gray with enough depth to anchor a contemporary build.
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The most common asphalt-shingle install nationally is a gray in this exact tonal zone. Timberline Uhdz With Ultramat Slate sits right inside that fairway: dark enough to feel anchored, light enough to keep the elevation breathing. The granule blend is engineered to read as a single quiet plane from the street.
GAF uses a tight blend of dark gray and faint blue-gray granules to keep the surface visually alive. The result is a roof that reads as a clean architectural line from the street and a textured surface up close.
Difficult to pair badly. The one place it disagrees: bright primary-yellow houses, where the cool undertone fights the warm siding.
| Type | Asphalt Fiberglass-mat, granule-coated, dimensional architectural shingle |
| Grade | Architectural Laminated profile with dimensional shadow line |
| Warranty | 30 years Manufacturer limited; transferable terms vary |
| Wind rating | Up to 150 mph WindProven Limited Wind Warranty with no maximum wind-speed cap (with required accessories). ASTM D3161 Class F. |
| Hail / impact | Class 4 UL 2218 Impact-Resistance Test rating. Class 4 is the highest grade; some Florida insurers offer a small discount on hail-rated roofs. |
| Fire rating | Class A ASTM E108 / UL 790 |
| Weight per square | 270 lbs Standard architectural asphalt |
| Algae resistance | StainGuard Plus 25-year algae warranty |
| Manufacturer | GAF Parsippany, NJ · made in the USA |
| Pieces / square | 64 Coverage: 100 sq ft per square |
| Exposure | 5 5/8" Manufacturer-specified shingle exposure per course |
Materials-per-square pulled from retailer scrape (Lowe's/Home Depot Florida zips).
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Questions homeowners ask before they commit. Answered without sales spin.
A confident, slightly cool dark gray. It reads close to black in shade and as a clean slate in direct sunlight. The granule blend has a faint cool undertone that keeps it from looking flat. On a Florida elevation with strong overhead light, expect the surface to brighten visibly compared to a cloudy day.
Minimally. GAF's ceramic granule coating is engineered to hold color for 25 plus years in Florida UV. Expect a barely-visible shift toward a slightly warmer tone over the first 5 years, then stability. The full warranty covers premature fading. Source: GAF product warranty card and NRCA Asphalt Shingle Manual.
In direct overhead sun it brightens to a clear charcoal with visible dimensional shadow lines. On cloudy days it reads almost black and recedes visually, which flatters most siding colors underneath. At sunset the granule blend shows its warmth.
Slightly, compared to a white or light-gray roof. In Florida, a mid-dark roof adds approximately 5 to 10 degrees Fahrenheit to attic temperatures during peak summer. Proper attic ventilation and a modern radiant barrier reduce the actual cooling-load impact to less than 20 dollars per month in most homes.
Very similar in daylight. The gray-family SKUs across GAF, GAF, CertainTeed, IKO, and Owens Corning sit within a small tonal window. Subtle differences in granule blend (some lean cool blue, others lean warm slate) become visible only side by side. Use the Compare tab to see direct hex deltas.
Generally yes. GAF's algae-resistance package uses copper- or zinc-infused granules that inhibit the most common Florida algae strain (Gloeocapsa magma). Expect clean performance for the warranty window with normal cleaning; in heavy-shade or low-airflow installations occasional soft-wash maintenance helps. Source: NRCA Algae Discoloration field guidance.