Slate-profile luxury laminate with ArmourZone. ASTM D3161 Class F.
Hail / impact
Not rated
UL 2218 impact rating not claimed on the manufacturer warranty card.
Fire rating
Class A
ASTM E108 / UL 790
Weight per square
325 lbs
Standard architectural asphalt
Algae resistance
AR (Algae Resistant)
15-year algae warranty
Manufacturer
IKO
Brampton, Ontario · made in the Canada
Exposure
10 inches (254 mm)
Manufacturer-specified shingle exposure per course
What you're looking at.
The granule tones the blend is built from, how the colour is classified, and how it behaves on a roof.
Granule 01Base tone#4D3A36
Granule 02Lighter granule#5D3D36
Granule 03Deeper granule#3A3431
Hex
#4D3A36
Family
Red / Russet
Undertone
Warm
Best in
Late afternoon light
How it shifts
Royal Granite is the warm-end specialty color in the Crowne Slate catalog. It reads as a deep russet in direct sun, softening to a warm brown in shade. The granule blend leans red, with iron-oxide accents that approximate the look of a Mediterranean clay tile without the weight or the cost.
The profile
The shingle profile holds enough shadow line that the red tone deepens at sunset rather than washing out. Florida's bright midday light flatters this color especially well.
Where it belongs
Pairs naturally with cream and warm-white stucco, terra-cotta accents, and natural-wood doors and shutters. Less flexible than the gray family but unbeatable on the right architectural style.
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About Royal Granite.
Questions homeowners ask before they commit. Answered without sales spin.
A warm, confident red with visible iron-oxide and brick-toned granule accents. In direct Florida sun it reads as a clear russet; in shade it deepens toward warm brown. Far more committed to red than the typical 'warm brown' SKU in the asphalt category.
Sometimes, depending on the rest of the palette. The color was specified historically to approximate Spanish and Mediterranean tile roofs, and it reads most naturally on those styles. On a traditional craftsman or Tudor it can work with the right warm-tone siding. On a contemporary all-white build it almost always reads as out of period.
Some. Red asphalt shingles use iron-oxide pigments in the granule blend, and reds drift cooler more visibly than grays or browns under prolonged UV exposure. Expect a slight shift toward warm brown over the first 7 to 10 years in Florida sun. The shift is uniform, so the roof still looks coordinated. Source: NRCA Asphalt Shingle Manual.
Slightly. Red asphalt absorbs roughly the same solar heat as a mid-dark gray or brown. In Florida that adds 5 to 10 degrees Fahrenheit to peak-summer attic temperatures versus a light-gray roof. Proper attic ventilation and a radiant barrier reduce monthly cooling impact to under 20 dollars in most homes.
Clay tile costs roughly 4 to 6 times more installed and weighs roughly 6 times more per square. The visual difference at street distance is small enough that most homeowners cannot distinguish the two without close inspection. The asphalt option also installs on a standard roof structure without engineered reinforcement.
Generally yes. IKO's algae-resistance package uses copper- or zinc-infused granules that inhibit Gloeocapsa magma, the dark-streak algae endemic to Florida and the Gulf Coast. Reds show the streaks less visibly than grays do even if growth occurs.
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#4D3A36 · red · warm undertone 
