- What it does
- Provides weatherproofing, thermal insulation, and structural protection for the uppermost layer of buildings. Spans representative products like asphalt shingles, metal roofing panels, and EPDM membrane rolls that seal and shield structures from precipitation, wind, and solar exposure.
- How it flows
- Delivered to construction sites as physical goods via pallets, rolls, or bulk flatbed transport, then installed manually or with mechanical lifts onto structural roof decks. It fastens or adheres directly to building framing and integrates with underlayment, flashing, and drainage systems.
- Summary
- Roofing materials are manufactured and packaged into bundles or rolls, then shipped through wholesale distributors and building supply dealers to construction sites. Specialized roofing contractors transport and install these products onto structural roof decks, with eventual decommissioning and removal at the end of the building's lifecycle.