New construction roofing in Sanford, FL

Roof sheathing on a new home is fastened with ring shank nails, 2 1/2 inches long, under the residential code. Ask the builder to confirm the nail type before the deck is covered. The sheathing and dry-in inspection looks at exactly this.

• Option one: the whole deck covered in self-adhering polymer-modified bitumen underlayment.
• Option two: a strip at least 3 3/4 inches wide over every deck joint, then approved underlayment over the whole roof.
• Option three: two layers of felt-type underlayment, fastened 12 inches apart in the field and 6 inches apart at laps.

On shingle roofs the drip edge goes over the underlayment at eaves and gables. Fastening is at most 12 inches apart, or 4 inches apart where the design wind speed is 110 mph or more. Short eaves, under 6 inches of projection, call for gutters, and each downspout must empty a foot from the wall.

Sheathing is inspected before the roofing stage, and the code puts roofing near the end of the sequence, just ahead of the final. Your roof crew should not cover the deck until sheathing has passed. At the roofing stage, the inspector checks dry-in, insulation, coverings and flashing.

Who installs matters too. A general contractor may put on asphalt shingles itself only on a new building of its own construction. Anything else, such as tile, metal or membrane, needs a roofing contractor with state certification or registration. The permit card also warns you to record a Notice of Commencement, which must be posted before the first inspection.

An owner may also choose a private provider for plans review or inspections, with written authorization to the contractor. Ask the Building Division how it handles private provider paperwork in Sanford.