VerityRank
GAF Materials Corporation
Manufacturer VerifiedUnited States

GAF Materials Corporation

GAF

GAF Materials Corporation is the largest roofing and waterproofing manufacturer in North America, operating under parent company Standard Industries. Founded in 1886 and headquartered in Parsippany, New Jersey, GAF commands over 25% of the US residential roofing market share. With extreme vertical integration spanning upstream mining (colored granules through SGI), glass mat manufacturing, and polymer extrusion, GAF operates 30+ large-scale production facilities across the United States. The company covers 50+ countries and employs 5,000+ workers. As the flagship subsidiary of Standard Industries, GAF benefits from group revenues exceeding 0 billion, providing unparalleled financial backing for capacity expansion and R&D investment.

Strengths: (1) Unmatched vertical integration controlling the entire value chain from colored granule mining to finished TPO membrane extrusion, creating an insurmountable cost and quality advantage in North America; (2) Over 25% US residential roofing market share with the strongest contractor loyalty program and brand recognition in the industry; (3) Aggressive capacity expansion including a 275,000 sq ft Kansas super-factory, an Illinois insulation board plant, and a Georgia TPO membrane facility; (4) Comprehensive product portfolio spanning modified bitumen, TPO, PVC, polyisocyanurate insulation, fluid-applied coatings, and integrated solar roofing, offering one-stop building envelope solutions.

Weaknesses: (1) Heavy geographic concentration in North America with limited direct presence in Europe and APAC markets compared to Sika or Saint-Gobain; (2) As a privately held subsidiary, limited public financial transparency and potential capital allocation constraints driven by parent company priorities; (3) Non-residential and infrastructure project penetration significantly lower than residential dominance, limiting revenue diversification.
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United StatesFounded 18865,000+$110 B30+ / 100
Last updated: November 2026·By VerityRank Research Team·Methodology

GAF Materials Corporation, operating under the parent Standard Industries, is the largest roofing and waterproofing manufacturer in North America. Founded in 1886 and headquartered in Parsippany, New Jersey, GAF commands over 25% of the US residential roofing market share with a brand heat score of 89/100 reflecting its dominant market position. Privately held as part of Standard Industries (group revenue ~10 billion), GAF operates 30+ large-scale production facilities across the United States.

Core Business in Fireproofing & Waterproofing

Under 8.2 Waterproof Membranes, GAF manufactures modified bitumen SBS/APP membranes, TPO single-ply roofing membranes, PVC membranes, and self-adhered underlayments. For 8.3 Waterproof Coatings, GAF produces fluid-applied silicone, acrylic, and polyurethane roof coatings. In 12.1 Insulation, GAF manufactures polyisocyanurate (PIR) rigid foam insulation boards. The company also supplies comprehensive building envelope systems combining waterproofing, insulation, and vapor control layers.

Manufacturing Scale

GAF's true competitive advantage lies in its extreme vertical integration. In 2025, GAF established a dedicated 'Specialty Products and Services' business unit that internalizes colored granule mining (through SGI subsidiary), glass mat manufacturing (Glass Mat), and logistics operations. Recent expansion includes a 275,000 sq ft Kansas super-factory, an Illinois insulation board plant, and a Georgia TPO membrane facility. This level of upstream control — owning mineral mines, fiberglass weaving, compounding, and extrusion — creates an unparalleled quality and cost advantage in the North American market.

VerityRank Score

VerityRank Score of 85/100

Quick Facts

Headquarters

Parsippany, New Jersey, United States

Founded

1886

Employees

5,000+

Revenue

$110 B (Standard Industries Group)

Factories

30+ (GAF); 100+ (Standard Industries Group)

Presence

North America, with regional distribution centers across the United States and Canada

Listing

Private (Standard Industries)

Categories
Building MaterialsCeiling Systems & Integration IndustryEco-Friendly & Energy Saving Materials IndustryFireproofing & Waterproofing Solutions ManufacturersWaterproof Coatings IndustryNew Energy & Eco-Materials IndustryBuilding Envelope Systems IndustryHigh-Performance Metal Materials IndustryNew Energy Systems IndustryPLC Control Systems Industry

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Data Sources & Methodology

This corporate profile is compiled from publicly available sources including company annual reports, SEC/regulatory filings, official press releases, and verified third-party industry databases. Financial figures reflect the most recent fiscal year disclosures and are cross-validated across multiple independent references.

VerityRank Score is calculated using a proprietary multi-dimensional model evaluating market presence, financial strength, operational scale, innovation capacity, and brand influence. Individual dimension scores are normalized against industry peers and updated quarterly.

Disclaimer: This profile is for informational purposes only. VerityRank makes no warranties regarding completeness or timeliness. This content does not constitute investment advice or endorsement.

Key references: Official Website , fortunebusinessinsights.com, intelmarketresearch.com, sphericalinsights.com, six-group.com