How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
Frequently Asked Questions (FAQ) about Roof Sheathing
Friday, May 13, 2022
Roof sheathing provides the stable base for installing roofing, and must be securely nailed to the roof structure below to avoid the roof being sucked away during a hurricane. But it is only visible from the attic and does not get much attention—until there’s problem.
• Why is my roof sheathing sagging between the trusses?
• What causes a lump or dip in the roof?
• What is the difference between plywood and OSB sheathing?
• Are H-clips required by the building code for roof sheathing?
• When did Florida start requiring re-nailing of roof deck sheathing for a roof replacement?
• What are the roof deck/sheathing panels that look like pressed spaghetti?
• When were staples banned for roof sheathing attachment in Florida?
• When did the Florida code start requiring roof sheathing nails to be ring-shank instead of smooth?
• What is the average life expectancy of roof sheathing?
• What are the different roof attachment discount categories for a wind mitigation inspection?
• What is the difference between plywood and OSB sheathing?
• Why is there a small gap between roof sheathing panels?
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