Why Type B Deck Installation Matters for South Florida Roofs
The deck is the anchor for the whole roof: insulation and membrane fasten into it, and it ties the roof to the structure. If the Type B deck is installed with the wrong fastener pattern, short bearing, loose sidelaps or damaged coating, the roof can fall short of its design wind uplift and corrode early. We cut to length and ship shop drawings to help crews get it right.
Installation items that decide performance
- Fastener type and pattern at each support, including heavier patterns in perimeter and corner zones.
- Sidelap fastening per the drawings; the catalog minimum is midspan or 36" spacing, whichever is smaller, on spans over 5'-0".
- Enough bearing on every support, and end laps that fall over supports.
- Sheets laid with ribs aligned so the 36" coverage stays true and sidelaps nest.
- Openings framed or reinforced as detailed, not just cut.
Protecting the deck before the roof goes on
Store bundles off the ground, sloped and covered so water drains. Wet-stacked galvanized sheets can develop white rust. Touch up coating damaged by welding or cutting. Keep construction loads within what the deck was designed for; the catalog construction spans assume a 200 lb load on a 1 ft width.
Start with the right material
Correct lengths reduce field cutting and waste. Send your plans for a takeoff and we will quote Type B with cut lengths and a shop drawing layout.
Related Questions
Who inspects steel roof deck installation in Florida?
The building department inspects per the permit, and the Florida Building Code requires special inspection of certain structural steel work, which can include deck welding and fastening. The engineer of record lists required inspections in the structural documents. Ask your engineer or threshold inspector which apply to your project.
What happens if deck sheets are stored wet?
Moisture trapped between tightly stacked galvanized sheets can form white rust, a zinc oxide that consumes coating. Store bundles off the ground, one end raised so water drains, and covered with a breathable tarp. Inspect on delivery and install promptly. Plan deliveries around the erection schedule so bundles do not sit for long.