Proper Florida Roof Nailing 8d

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Proper florida roof nailing 8d.

The specific nailing requirements are contained in the following chart. Recommended that deformed shank nails be used throughout the entire roof. In high wind areas more fasteners may be required. 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.

An 8d nail 2 5 inches long is the minimum size nail to use for fastening sheathing panels. 706 7 1 1 roof decking consisting of sawn lumber or wood planks up to 12 inches wide and secured with at least two nails minimum size 8d to each roof framing member it crosses shall be deemed to be sufficiently connected. If 8d common nails are specified the nail diameter must be at least 0 131 inch wider than typical 8d pneumatic nails. Sheathing should be a minimum of 19 32 inch thick.

8d ring shank nails should be used instead. Never attach roof sheathing with staples. The typical thickness range for sheathing is 3 8 to 3 4 inch. 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 it was originally secured using staples or 6d nails it must be completely re nailed to the new standard. Sawn lumber or wood plank decking secured with smaller fasteners than 8d. The 2004 edition of florida s building code has a new nailing requirement for residential pitched roofs. Fasten panels with a minimum of 8d common 0 131 inch by 2 1 2 inch nails spaced a maximum of 6 inches on center at supported panel ends and edges.

At intermediate supports fasten panels 12 inches on center. Screws can be used for even greater withdrawal strength but should be sized by the building designer.