wind rating ASTM D7158 shingles Kerala

Beyond the Marketing Brochure: How to Read and Verify Lab Certifications for Architectural Shingles

• September 16, 2026
• admin

As architectural shingles grow in popularity across South India for premium private villas, resorts, and commercial developments, the market has seen an influx of alternative products and private-label imports. To the untrained eye, two shingles placed side by side can appear nearly identical: both feature textured ceramic granules, a fiberglass backing, and dark shadow lines. …