New construction roofing in Palm River-Clair Mel, FL

On a new shingle, metal or similar roof, the code gives three dry-in options for the underlayment. Self-adhering polymer-modified bitumen is an option for covering the entire deck. You can use a strip of membrane or approved tape over each deck joint and then an approved underlayment over the roof. Or you can lay two layers of felt-type underlayment, fastened with ring or deformed shank cap nails.

• Roof sheathing nails must be ASTM F1667 RSRS-03 type ring shank nails, or RSRS-01 or RSRS-04 where the sheathing is 15/32 inch or thinner.
• Shingle drip edge at eaves and gables is fastened at most 12 inches on center, and at most 4 inches on center where design wind speed is 110 mph or higher.

Inspections run in a set order: foundation, framing, sheathing or dry-in, exterior wall coverings, roofing, then final. Schedule the roof work so the sheathing and dry-in inspection passes before the roof covering goes on.

Statewide, roofing products must receive approval, which makes roofing a required approval category. Before a roof product goes on your permit, check its Florida Building Commission approval number through the public product approval search. A product may not be advertised as wind or debris protection unless it is approved.

Unless it holds a roofing certificate or registration, a general contractor has to hand the roofing work to a subcontractor. A builder may install asphalt shingles on its own new building, but tile, metal and membrane work goes to a certified or registered roofer. Ask for the license number and look it up before you sign.

Gutters with downspouts are required on buildings whose eaves project less than 6 inches, and each downspout must discharge at least 1 foot from the sidewall. Confirm gutter and downspout details on the plans before the roofing inspection.