130 mph with SureStart Plus upgrade. ASTM D7158 Class H.
Hail / impact
Class 3
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
StreakFighter
15-year algae warranty
Manufacturer
CertainTeed
Malvern, PA · made in the USA
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#5E7280
Granule 02Deeper granule#4D5F68
Granule 03Lighter granule#7A8C98
Hex
#5E7280
Family
Blue / Coastal
Undertone
Cool
Best in
Bright direct sun
How it shifts
Max Def Coastal Blue is the rare asphalt shingle that genuinely reads blue rather than gray-with-a-hint. The granule blend leans cool, with slate and storm-gray accents that keep the surface from looking artificial. On a south-facing Florida elevation in midday sun, the blue tone is unmistakable.
The profile
The granule blend uses a base of slate-blue with smaller portions of charcoal and storm-gray to keep the cool tone honest. Up close you can see the layering; from the street it collapses into one quiet blue plane.
Where it belongs
Works best on coastal craftsman, Cape Cod, Nantucket-style, and contemporary builds. Less flexible than gray but more memorable.
Landmark Pro Max Def Coastal Blue, shown two ways: photographs from manufacturers and Florida roofers, and renders that keep the roof color from an install photo and restyle the facade around it. Every image below says which it is.
Manufacturer install
Manufacturer install
AI-rendered example (right-34 view)
AI-rendered example (left-34 view)
Max Def Coastal Blue pairs well with.
We do not yet have full-render combination pages for this color family.
Materials-per-square pulled from retailer scrape (Lowe's/Home Depot Florida zips).
Per square (materials)
$138–$159
Home Depot / Lowe's retail snapshot, three bundles per square.
Typical 30-square home
$4,140–$4,770
Materials only. Underlayment, starter strip, and ridge cap not included.
Installed in Florida
$12k–$20k
Full re-roof including tear-off, decking inspection, install, and disposal. Range varies by pitch, square count, and accessibility.
Stop guessing. See Max Def Coastal Blue on your roof.
Upload a phone photo of your house and watch our AI swap your existing roof for CertainTeed Landmark Pro Max Def Coastal Blue in about four seconds. Save the render, share with your contractor, change your mind ten times. Free.
About Max Def Coastal Blue.
Questions homeowners ask before they commit. Answered without sales spin.
A confident cool blue with slate and storm-gray granule accents. In direct Florida sun it reads as a clean blue; in shade it pulls toward cool gray. Far less common than gray or brown in the asphalt category, which is part of the appeal.
Possibly. The color was specified historically to pair with cedar shake, Cape Cod, and coastal-cottage elevations. On a traditional brick or warm-stucco home it can read as out of place. On a contemporary or modern build it works as long as the rest of the palette stays cool.
Some. Blue asphalt shingles use ultramarine and cobalt-toned pigments in the granule blend, and blues drift cooler-and-grayer more visibly than grays or browns under prolonged UV. Expect a slight loss of saturation over the first 10 years in Florida sun. Source: NRCA Asphalt Shingle Manual.
From across the street they can read similarly, especially on overcast days. In direct sun the blue tone separates clearly. If you want a roof that 'reads gray most of the time and blue on bright days,' this is closer to what you want than the cool-gray family.
Slightly. Mid-tone cool asphalt absorbs similar solar heat to mid-tone gray. Florida attic-temperature impact is 5 to 10 degrees Fahrenheit at peak summer versus a light gray. Proper ventilation and a radiant barrier reduce monthly cooling-cost impact to under 20 dollars.
Yes. Blue asphalt SKUs are produced in far smaller volumes than gray or brown. Lead times can be longer and some retailers do not stock them. Plan a 2 to 4 week lead time if you want to specify this color.
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See Max Def Coastal Blue on your house before you commit to it.
#5E7280 · blue · cool undertone 
