Roofing Felt Requirments Florida

It also offers fire resistance required for home construction.

Roofing felt requirments florida.

Vertical joints should lap a minimum of 4 inches and be offset by at least 6 feet in successive rows see figure 2 2 at left. This law states that if more than 25 percent of a building s roof must be replaced within a 12 month period then the entire roof may need to be replaced. Apply a 19 inch 483 mm strip of underlayment felt parallel to and starting at the eaves fastened sufficiently to hold in place. There are slight differences to the rule for buildings in or out of an hvhz so it is important to know where your building lies.

Asphalt saturated felt starting at the eaves and lapping upper courses over lower by a minimum of 2 inches. Asphalt saturated felt starting at the eaves and lapping upper courses over lower by a minimum of 2 inches. Another important florida roofing rule is the 25 percent rule. Roof wind loads the frsa tri florida high wind concrete and clay roof tile installation manual has been updated to comply with asce 7 16.

For other applications builders and roofers must use d226 type ii roofing felt or a synthetic felt that has met florida building code approval. Apply a 19 inch 483 mm strip of underlayment felt parallel to and starting at the eaves fastened sufficiently to hold. Additionally in all areas of florida if the existing roof decking is fastened with 8d round head ring shank nails spaced. On roofs with a slope of 4 12 or greater use a single layer of 15 lb.

Vertical joints should lap a minimum of 4 inches and be offset by at least 6 feet in successive rows see figure 2 2. 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. Florida s code with its emphasis on minimizing hurricane damage influences the development of codes in other states. A layer of felt or nonbituminous satu rated felt not less than 18 inches 457 mm wide shingled between each course of a wood shake roof covering.

Starting at the eave apply 36 inchwide 914 mm sheets of underlayment overlapping successive sheets 19 inches 483 mm end laps shall be 6 inches and shall be offset by 6 feet. Two new tables have been added. Additionally the prescriptive fastening requirements for wood structural panel roof sheathing in section r803 2 of the fbcr have been updated to comply with asce 7 16.