Roof Sheathing Clip Spacing

H clips provide additional stiffness between bearing points for the unsupported edges of wood panel plywood or osb roof sheathing along with the necessary 1 8 gap for expansion as shown below illustrated on a bag of simpson h clips.

Roof sheathing clip spacing.

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. The clips are inserted over the edges of the adjacent plywood panels to reduce deflection of the panel edges between the framing members and are most commonly used for roof sheathing. Spacer type panel edge clips may also be used for roof sheathing applications. Not always required but a good idea.

Roof sheathing panel spacing hints. A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. Some older h clips do not provide a built in gap. Simpson strong tie panel sheathing clips are used to brace unsupported sheathing edges and provide a 1 8 gap to address shrinkage and expansion of roof sheathing.

8d ring shank nails should be used instead. Sheathing should be a minimum of 19 32 inch thick. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Zip system roof assembly combines our revolutionary integrated sheathing and flashing tape or liquid flashing to provide a sealed roof for protection against moisture intrusion during construction or if high winds strip the roof covering away.

The typical thickness range for sheathing is 3 8 to 3 4 inch. Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing. Check building code requirements for installation of panel edge clips. Use a 10d box nail to gauge 1 8 inch spacing between panels.

Never attach roof sheathing with staples. Plywood clips also referred to as h clips or panel edge clips are small metal brackets placed between the unsupported edges of plywood sheathing to effectively reduce the support spacing and stiffen the plywood. For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

Spacer type panel edge clips may also be used for roof sheathing applications.