Year: 2026

Direct Answer There is no universal calendar interval for replacing sealant at commercial roof counterflashings. Sealant should be inspected regularly and replaced when it shows failure such as cracking, splitting,…

Direct Answer FM Approvals and FM Global loss prevention recommendations are related but serve different purposes. FM Approvals is primarily a testing and certification program for products, materials, equipment, and…

Direct Answer Florida does not have one universal VOC limit that applies to every roofing adhesive or roof coating used on every commercial project. The applicable requirement depends on the…

Direct Answer R-value for a complete commercial roof assembly is calculated by determining the thermal resistance of each relevant layer—such as the roof membrane, cover board, insulation, vapor/air-control layers, roof…

Direct Answer FM Global is a commercial property insurer and risk-management organization that uses engineering, research, testing, and loss-prevention standards to help reduce property losses. Its affiliated FM Approvals program…

Direct Answer To prevent adhesive and solvent runoff into storm drains during commercial roofing work, the roofing contractor should control the work area before materials are opened, keep adhesives and…

Direct Answer FM Data Sheet 1-29, “Roof Deck Securement and Above-Deck Roof Components,” provides FM Global loss-prevention guidance for securing commercial roof decks and the roofing components installed above them.…

Direct Answer For concrete walls, counterflashing reglet options generally fall into two main approaches: a recessed reglet with inserted counterflashing or a surface-mounted counterflashing system when cutting a reglet is…

Direct Answer Yes, R-value requirements can be different in North Florida versus South Florida. Florida’s Energy Conservation Code divides the state into different climate zones, and the required insulation level…

Direct Answer NPDES stormwater requirements during roofing work depend primarily on whether the project qualifies as regulated construction activity and whether stormwater can carry pollutants from the site to surface…