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.
H clips roof sheathing spacing.
Use a 10d box nail to gauge 1 8 inch spacing between panels.
Not always required but a good idea.
Some manufacturers may.
Panel spacing is an apa recommendation to provide installers with a means of minimizing the potential for panel buckling.
For spans 28 use two pscas.
Grip h clips are designed to make installing roof sheathing faster with better spacing.
Reduce frustration of clips falling off or spearing edge of sheet full length expansion bar gives you superior alignment and perfect expansion gap our plywood h clips will not poke holes in the underlayment a problem with some metal roofing clips.
Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing.
Spacer type panel edge clips are available from some manufacturers.
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.
Refer to 2015 ibc table 2304 8 3 for additional important information.
Spacer type panel edge clips may also be used for roof sheathing applications.
Some older h clips do not provide a built in gap.
A panel edge clip often called an h clip or plywood clip is typically a small piece of galvanized metal that is placed between adjacent wood structural sheathing panels at a location between supporting joists or trusses and or rafters to provide support to panel edges.
However it is not a requirement.
Roof sheathing panel spacing hints.
Grip h clips are designed to make installing roof deck sheathing easier and faster with better spacing.