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Johns Manville
A Berkshire Hathaway company with over 160 years of history, offering a complete line of commercial roofing systems including TPO, PVC, EPDM, and built-up roofing. This profile is an independent, factual summary based on publicly available information. Commercial Roofing Insights has no partnership, sponsorship, or affiliate relationship with this company, and inclusion here is not…
Owens Corning
Widely known for insulation products, including commercial roof insulation, alongside asphalt-based roofing materials. This profile is an independent, factual summary based on publicly available information. Commercial Roofing Insights has no partnership, sponsorship, or affiliate relationship with this company, and inclusion here is not an endorsement. See our editorial policy.