When Is It Acceptable to Use Bare Type B Metal Decking Temporarily in Florida Construction Projects?
We offer temporary bare Type B metal decking evaluation and protection services for temporary Type B metal decking use in Florida construction projects.
Summary
- Short-term use only with proper protection
- Follow manufacturer and Florida Building Code
- Require inspection, fastening, and drainage control
Miami Metal Deck explains when bare Type B metal decking may be used temporarily on Florida construction projects. This article gives practical rules, code considerations, and risk controls so you can decide when temporary exposure is acceptable and how to protect structural performance and warranty integrity.
Regulatory and Code Considerations
Florida Building Code and manufacturer instructions are primary authorities for temporary exposure decisions. Use of bare Type B metal decking must comply with FBC guidance, structural engineer specifications, and material standards such as ASTM A653 for galvanized coatings. Confirm coating class (for example G60 or G90) and any manufacturer exposure limits before allowing temporary use.
Acceptable scenarios include short exposure windows between deck placement and concrete pour, noncoastal sites with lower corrosion risk, and when the deck is protected from ponding and prolonged wetting. Temporary use requires approved fasteners, edge bracing, proper slope for drainage, and no unintended working loads beyond the deck design.
Site Protection and Best Practices
Protective measures reduce corrosion and preserve finish. Use waterproof membranes or tarps, ensure rapid drainage, apply temporary zinc-rich touch-up primers only as approved, seal seams, and schedule prompt concrete placement. Secure decking with specified fasteners and install temporary edge flashings to prevent water ingress and wind uplift during delays.
Document inspections, duration of exposure, and corrective actions with daily logs and engineer approvals. Written acceptance from the manufacturer or engineer for any deviation preserves warranty coverage and provides evidence for quality control or insurance claims.
Risk Management and Warranty Impacts
Leaving bare deck exposed can accelerate corrosion, affect concrete bond, stain finishes, and in many cases void manufacturer warranties. Liability and repair costs can shift to the contractor if exposure causes damage. Obtain written approvals for temporary exposure and follow specified mitigation to limit risk.
Miami Metal Deck provides certified installers, material traceability, and project-specific weather protection protocols to minimize exposure risk. Our teams follow FBC and manufacturer guidelines, document field conditions, and recommend coatings and installation sequencing to protect schedules and reduce warranty exposure.
When to Avoid Bare Decking
Avoid bare Type B deck exposure in coastal or highly corrosive environments, during hurricane season, when delays exceed short-term windows, or when the manufacturer or structural engineer prohibits exposure. In these cases specify prefinished deck, immediate concrete placement, or approved protective coatings and always consult project engineers and the Florida Building Code.
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