Type B Metal Deck for Florida Grocery Stores
1.5" Type B deck is a common roof deck for Florida grocery stores over joists. Grocery roofs carry refrigeration condensers, rooftop units and skylights, so framing for equipment and openings must be coordinated early. Areas over coolers and freezers can see condensation, which favors galvanized deck and good vapor control. We supply Type B with a full takeoff.
What makes grocery roofs different
- Refrigeration racks and condensers are heavy and need dedicated framing.
- Skylights and roof hatches are many openings, and each needs framing and closures.
- Coolers and freezers: cold boxes under a warm roof create condensation risk. Use galvanized deck and correct vapor control per the design.
- Sales floor ceilings are often exposed, so painted deck or a field topcoat is common.
Building to an opening date
Grocery projects run to fixed openings, and refrigeration installers need the roof dried in early. Cutting lists by area and accessories ordered with the deck (sump pans, closures, Tek screws) keep the roof crew moving.
Send the roof plan with the refrigeration layout and we will return a takeoff and quote.
1.5" Type B roof deck, catalog construction spans (200 lb load on a 1 ft width, ANSI/SDI RD-2017 and SD-2022). Design spans come from the engineer of record.
| Gauge | Thickness (in) | Weight (psf) | Single span | Double or triple span | Cantilever |
|---|---|---|---|---|---|
| 22 | 0.0295 | 1.6 | 8'-03" | 10'-02" | 2'-02" |
| 20 | 0.0358 | 2.0 | 11'-00" | 13'-07" | 2'-09" |
| 18 | 0.0474 | 2.6 | 14'-11" | 18'-05" | 3'-10" |
| 16 | 0.0598 | 3.0 | 19'-03" | 23'-08" | 4'-10" |
Related Questions
Which coating suits a grocery store roof?
Over the conditioned sales floor, G60 galvanized is often acceptable inland. Over coolers, freezers and loading docks, and near the coast, G90 adds protection against condensation and humidity. The specification governs, and mixed coatings should be zoned on the shop drawings.
Can refrigeration lines hang from Type B deck?
Light lines may be supported as the engineer allows, but heavy piping and equipment should hang from joists or framing. Give the engineer the refrigeration load data early so supports are designed rather than added in the field. Field-added hangers on deck are a common source of overstress and dented ribs.