What Are Mineral Granules?
Asphalt based roofing products today are designed to last 30, 40, even 50 years. This would not be possible without mineral
roofing granules. Our colored granules are an asphalt roofing system’s first line of defense from the environment.
SGI’s granule manufacturing process starts with the mining, crushing and sizing of a very select grade of stone into granules.
The physical properties of the stone at our quarries provide the durability and longevity that is demanded of SGI’s roofing granules.
Once the granules are properly sized, a proprietary and environmentally friendly semi-ceramic coating is applied to create the
rainbow of granule colors that have become one of the defining features for today’s most sought after roofing products.
Ultimately, Specialty Granules Inc. roofing granules provide both aesthetic appeal and protection for millions of homes across America.
The Benefits Of Our Mineral Granules
Our Mineral Granules Provide:
- Weather Resistance
- Aesthetic Appeal
- Protection from the Sun's ultraviolet light
- Durability lasting decades
Specialty Products: We Create The Product You Need
Solar Reflectivity
To aid in the conservation of energy usage within a home or building, SGI offers its line of SolarShield™ Reflective Granules.
Developed by a patented breakthrough manufacturing process, SGI’s latest innovation increases reflectance of most roofing
granules with minimal change to the original color. Our line of solar reflective granules meet EPA’s Energ y Star® steep-slope
roofing requirements and eliminates the dilemma of choosing between environmental responsibility and aesthetic appeal.
Algae Resistance
With the addition of Color Guard™ granules, which contain a patented algicidal formulation, the performance of asphalt
shingles is enhanced with protection from algae discoloration that will help maintain the original color of the asphalt shingles.
Custom Sizing & Colors
We recognize that our customers and the products they produce are not all alike. To provide the level of exemplary service
and products that all of our customers have come to expect, Specialty Granules Inc. offers:
- Finer size grading; to satisfy the stone coated metal roofing market.
- Expanded specialty color palette; such as patina green, aluminum, copper,
bright yellow and metallic blue. What color do you need?
- Color Blending along with other custom services for our specialty product customers.