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Click here to download a PDF version of this checklist.
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From inside your attic determine the following: (for guidance see
Roof Sheathing Assessment)
Type of roof decking (sheathing):
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Planking
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Plywood
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Oriented Strand Board (OSB)
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Thickness of roof sheathing: __________ inches
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Type of roof decking fastners::
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Smooth Shank Nails
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Ring Shank Nails
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Screws
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Staples
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Length of fastners: __________ inches
Typical maximum fastener spacing (field of roof sheathing or planking - not along edge of panels): __________ inches
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Note: If you get spacing of 3 to 6 inches between fasteners, go to the next rafter or
truss and check the nail spacing along that member.
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