Proper Florida Roof Nailing 8d

Fasten roof sheathing panels properly.

Proper florida roof nailing 8d.

In the florida team s testing and other studies 8d ring shank nails at 6 inches o c. For existing nails regardless of head shape or head diameter. In high wind areas more fasteners may be required. An 8d nail 2 5 inches long is the minimum size nail to use for fastening sheathing panels.

The 8d gun nails that the roofers are using are 2 3 8 if that nail measured 2 7 8 or more it would likely be an 8d nail. If the design wind speed for your area is less than 120 mph add 8d ring shank nails at 6 spacing along all the intermediate roof structure members within 4 of the edges and ridges of the roof. An 8d nail is 2 5 long and protrudes though the roof sheathing a little less than 2 as shown below. Deformed shank i e ring or screw shank nails are required near ridges gables and eaves in areas with design wind speeds over 110 mph 3 second gust but it is typical layout of roof.

However generally speaking in all areas of florida if the existing roof decking is fastened with either staples or 6d nails the entire roof deck will need to be re nailed with 8d round head ring shank nails spaced no greater than 6 inches on center. Your contractor must fill out and sign an affidavit stating that the roof deck upgrade requirements have been met and submit it to the local building department as part of the requirements for a final roof inspection. Full round heads are recommended to avoid head pull through. At intermediate supports fasten panels 12 inches on center.

8d nails shall be a minimum of 0 113 inch in diameter and shall. Add 8d ring shank nails so that the maximum spacing between existing and added nails is 6 along intermediate roof framing members in all areas inside the 4 perimeter. For site built single family residential structures the fastening shall be in accordance with section r908 7 1 1 or r908 7 1 2 as appropriate for the existing construction. The specific nailing requirements are contained in the following chart.

Full round heads are recommended to avoid head pull through. Deformed shank i e ring or screw shank nails are required near ridges gables and eaves in areas with design wind speeds over 110 mph 3 second gust but it is rec. Have shown an uplift capacity of 292 psf while ordinary 8d common nails provide only 126 psf of uplift capacity. An 8d nail 2 5 inches long is the minimum size nail to use for fastening sheathing panels.

Be a minimum of 2 1 4 inch long to qualify for the provisions of this section. 8d nails shall be a minimum of 0 113 inch 2 9 mm in diameter and shall be a minimum of 2 1 4 inch 57 mm long to qualify for the provisions of this section for existing nails regardless of head shape or head diameter.