Irwindale Roofing Materials 13550 Live Oak Ln Southern California's leading manufacturer of specialty sand and rock products. A-1 Grit Company specializes in the production of washed, kiln-dried and graded aggregates to the roofing industry.A1-Grit's pneumatic truck can deliver aggregate directly to difficult access areas. A-1 Grit Company carries a complete line of aggregates in addition to our processed granite. Our products include specialty sand, natural color rock, slag, ceramic coated granules and ballast for single ply systems. Products are available in bags, bulk, pails, super-sack, and pneumatic tankers.a1 grit,a1grit,a 1 grit,a-1 grit,rock,aggregates,graded aggregates,roofing industry,kiln-dried rock,kiln dried,washed rock,ASTM,UBC,Building Code,Poultry Grit,Filter sand,Pool Sand,Sand-Blast Sand,pneumatic truck,pneumatic rock,pneumatic roof,Landscape Rock,Decorative Rock,Silica Sand,Golf Course,Divit Mix,Colored Aggregates,Colored Rock,processed granite,Pneumatic tankers,roof surface,Western States,Southern California,California,Nevada,Arizona,Hawaii,Utah, New Mexico,Irwindale California,Redlands California,Dust Free,rock delivery,pebbles,colored pebbles,ballast rock,dressing rock,specialty rock,granules,gravel,lucas rock Irwindale CA Roofing Materials A 1 Grit Co www.a1grit.com Business Reviews A 1 Grit Co Testimonials