Required Thickness Of Roof Sheathing

And for wood structural panel sheathing r803 2 2 allowable spans.

Required thickness of roof sheathing. If you re in search of quotes for a roof sheathing job improvenet can put you in touch with up to four local contractors for free. Spacer type panel edge clips are available from some manufacturers. Oriented strand board osb or plywood can be used although plywood will provide higher nail head pull through resistance. Comes in standard 4 by 8 foot sheets is strong.

Never attach roof sheathing with staples. Sheathing type typically 15 32 inch or thicker panels are required in high wind areas. Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels. You would go to table r503 2 1 1 1 to determine minimum nominal panel thickness.

Loads will vary with the. The typical thickness range for sheathing is 3 8 to 3 4 inch. Roof sheathing materials plywood. Roof sheathing panel spacing hints.

For the most common roof sheathing in our area which is 1 2 nominal 7 16 actual sheathing over trusses or rafters at 24 on center there is no requirement for h clips. Many code requirements are not inspected. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. Minimum thickness most roofs will be sheathed in plywood at least 3 8 inch thick.

Use panels rated as exposure 1 or better. Panel edges shall have approved tongue and groove joints or shall be supported with blocking unless 1 4 inch minimum thickness underlayment or 1 1 2 inches of approved cellular or lightweight concrete is placed over the subfloor or finish floor is 3 4 inch wood strip. Sheathing should be a minimum of 19 32 inch thick. According to 2009 irc table r803 1 minimum thickness of lumber roof sheathing.

And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity.