Mold from Commercial Roof & Deck Leaks

Low-slope commercial roofs hide slow leaks in insulation and cover boards. Water migrates to roof drains, fasteners, and penetrations, then appears as staining on acoustic tile, mold on fiberglass batts above hard lids, or odor in top-floor corridors after storms.

Unlike steep residential roofs, commercial decks may leak for weeks through internal drains before interior signs appear. Remediation must coordinate with roofing contractors for envelope repair and often involves removal of wet insulation and contaminated ceiling components.

We document wet layers for insurance, dry structural decks from below when appropriate, and remediate mold per IICRC S520 with attention to re-occupancy in offices and retail.