New construction roofing in Doral, FL

Roof sheathing must be fastened with ring shank nails, 2 1/2 inches long and 0.131 inch thick. For the dry-in layer under shingle or metal, your builder picks from three code methods. One covers the whole deck with self-adhering polymer-modified bitumen underlayment. Another tapes every deck joint and adds an approved underlayment. The third uses two layers of felt-type underlayment with cap nails.

Roofing is a mandatory statewide-approval category under Florida law. Miami-Dade's Product Control Section reviews and approves roofing products. In the High Velocity Hurricane Zone, the permit application carries the approval or Notice of Acceptance numbers. A copy of the full Notice of Acceptance must be available at the job site if the Building Official asks.

Tile goes only over solid sheathing, installed to the manufacturer's instructions or the FRSA/TRI high wind tile manual. Shingle drip edge at eaves and gables is fastened at no more than 4 inches on center where wind speed is 110 mph or more.

On a Doral new build, the Building Department's inspections run foundation, framing, sheathing, exterior wall coverings, roofing, then final. At the roofing stop, the inspector looks at the dry-in, insulation, coverings and flashing. The sheathing inspection can be done separately once all roof and wall sheathing and fasteners are complete, so your roof crew cannot start covering the deck early.

Permits come from the City of Doral Building Department. A permit becomes invalid if work does not start within 6 months of issuance. Work suspended for 6 months voids it too, so a stalled lot needs a fresh look at the permit. Record the Notice of Commencement and post it before the first inspection, or you may end up paying twice for the improvements.

Florida law lets a general contractor put on asphalt shingles itself only when the building is its own new construction. Any other roof type goes to a contractor holding a roofing certificate or registration, and a general contractor may not advertise as a roofer without one. Owners may also choose a private provider for plans review or inspections, with written authorization.