Roof Diaphragm Nailing Schedule

Except where noted for exposure b enclosed buildings roof framing spaced 24 inches o c.

Roof diaphragm nailing schedule.

The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. In addition the maximum loads for which a blocked diaphragm can be designed are many times greater than those for diaphragms without blocking. These construction systems can be used when designing a building for lateral loads such as those generated by wind or earthquakes. Reduce fastener withdrawal capacity unless 3 inch nominal framing is used and the nailing schedule is staggered.

A shear wall however is a vertical cantilevered diaphragm. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. 1 inch 25 4 mm. Tab shingles need two nails on each side of the tab.

Diaphragm and shear wall perimeters interior openings areas of discontinuity re entrant corners. Diaphragm boundary all edges of a diaphragm shall be supported by a boundary element. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Ridge vents when the roof sheathing is used as a structural diaphragm as it typically is in high wind and seismic hazard.

Cantly reduce fastener withdrawal capacity unless 3 inch nominal framing is used and the nailing schedule is staggered. Chords drag struts collectors shear walls frames boundary member locations. Or less roof fastening zone wind main sheathing to gable overhang velocity roof end wall framingg eaves 3 second panel 123 2 3 2 3 gust locationi fastening schedule inches on center supported panel 666 6 6 150 mphf g end and edges 3h panel field 6. Above which increased nailing will not increase capacity.

Ridge vents when the roof sheathing is used as a structural diaphragm as it typically is in high wind and seismic hazard areas the structural integrity of the diaphragm can be compromised by a continuous vent see figure below left. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. A diaphragm is a flat structural unit acting like a deep thin beam. Asce 7 10 section 11 2 diaphragm boundary elements.