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Scotchgard™ Algae Resistant Roofing System


Scotchgard logo

The Scotchgard™ Algae Resistant Roofing System from 3M guards against roof algae for up to 20 years. The system uses copper roofing granules from 3M to prevent algae growth‚ protecting the roof and preserving the home’s beauty.

The Scotchgard logo on quality shingle brands assures that algae-stopping copper granules are uniformly distributed in precise combination with standard granules for optimal long-term algae and stain resistance.


Key Benefits
  • A roof that maintains an aesthetic appearance‚ enhancing a home’s overall visual appeal
  • Saves on repeated cleanings for lower long-term maintenance costs over the life of the roof
  • Expanded options in shingle color selection


Roofing Colors How Our System Works How You'll Save FAQs
Scotchgard™ Colors‚ 7000‚ Grey

Grey
7000
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Scotchgard™ Colors‚ 7050‚ Black

Black
7050
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Scotchgard™ Colors‚ 7070‚ Light Grey

Light Grey
7070
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Copper stops algae. When the precise level of copper-fortified granules in the Scotchgard™ Algae Resistant Roofing System are uniformly distributed across the surface of quality asphalt shingles in precise combination with standard colored granules’ you’re assured of built-in long-term algae and stain resistance.

See How Algae Can Destroy The Beauty Of Your Roof

Select the color sample closest to yours and view the algae progression from 5 to 15 years on a roof that does not have the Scotchgard™ Algae Resistant Roofing System.

Algae are seen on roofs in over 80% of the United States. Appearing first on the north slope of a roof‚ where extra shade and moisture support its growth‚ algae’s windborne spores can quickly spread from shingle to shingle and rooftop to rooftop. In at-risk areas‚ the Scotchgard™ Algae Resistant Roofing System logo on quality asphalt shingle brands is your assurance of built-in long-term algae and stain resistance.

Roof Algae Follow Climate & Geography

Anywhere there is significant humidity‚ roof algae are prevalent.

Roof Algae Follow Climate & Geography
Scotchgard™ Algae Resistant Roofing System

Initially‚ you can expect to pay more for asphalt shingles with the Scotchgard™ Algae Resistant Roofing System than you’d pay for regular asphalt shingles. But compared to the accumulated cost of frequent roof cleanings‚ your long-term Scotchgard™ System algae resistance translates to long-term savings — all for shingles that cost no more to install than regular shingles.

And with your built-in Scotchgard™ Algae Resistant Roofing System eliminating the need for roof cleanings‚ your roof will be spared the damage‚ deterioration and shortened life commonly associated with some cleaning methods‚ as well as the plant damage inflicted by powerful cleaning solutions.

Compare & Save

Value of Scotchgard™ Algae Resistant Roofing System Investment

Year $500 Roof Cleaning Every 3 Years Year
3 $500  
6 $1000 $500
9 $1500  
12 $2000 $1000
15 $2500  
18 $3000 $1500
21 $3500  
24 $4000 $2000
27 $4500  
30 $5000 $2500
TOTAL $5000 $2500
Original
Scotchgard™
AR System
Investment
$300 $300
Value / Savings $4700 $2200

Note: A shingle roof may require cleaning every 3 to 6 years depending upon geographic region. Investing $300 in a new asphalt shingle roof with the Scotchgard™ AR System will save hundreds of dollars over time while providing a beautiful algae free roof.

Faq Arrow   What causes black streaks on asphalt roof shingles?

Faq Arrow   How do algae grow?

Faq Arrow   Why are algae black?

Faq Arrow   Are algae harmful to shingles?

Faq Arrow   How do algae stains spread?

Faq Arrow   What methods are available to clean an algae-infested roof if a homeowner isn't ready to replace the roof?

Faq Arrow   What is the most effective asphalt shingle product available to inhibit algae growth and prevent the black staining?

Faq Arrow   How can a homeowner be sure of the performance of an Algae Resistant (AR) product?

Faq Arrow   Do asphalt shingles with built-in Scotchgard™ protection cost more than regular asphalt shingles?

See which manufacturers use our products in their shingles‚ and learn more about selecting the right product for your home or commercial building. .

Define: Algae Danger Zone +

Algae Danger Zone
Geographic areas of the U.S. most prone to roof algae. The two most severe areas are: Southeastern/Middle Atlantic states and the Pacific Northwest.

Define: Black Streaking +

Black Streaking
Stains caused by a hardy, blue-green type of algae.

Define: Gloeocapsa Magma +

Gloeocapsa Magma
The primary type of algae found on rooftops.

Define: 3M Compliance +

3M Compliance
The 3M control process which maintains the integrity of the Scotchgard™ AR System.

Define: Roof Cleaning +

Roof Cleaning
Power washing process to minimize obvious staining. May have to be repeated based upon climate conditions.

Define: Roof Algae +

Roof Algae
See Gloeocapsa Magma.

Define: Scotchgard™ Protection +

Scotchgard™ Protection
For Asphalt Shingles 3M innovation – driven solution that actually stops algae before they can ruin the beauty of your roof. Time Released Protection 3M patented way to have built-in Scotchgard™ protection released over a long period of time.