H Clips Roof Sheathing Spacing

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.
H clips roof sheathing spacing. Contrary to popular belief the h clips aren t so much for support as they are for proper spacing to allow for expansion and contraction if the sheathing was installed tight in cold weather it. However two 2 equally spaced h clips are required between supports when spaced 48 inches on center. What h clips do 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. In order to prevent buckling of roof decking each sheet should be installed with an 1 8 gap between sheets.
Grip h clips are designed to make installing roof sheathing faster with better spacing. When used for spacing we only place 2 clips per piece one at each end. Its just faster and more uniform ocean state builders inc. Yeah i know what you guys are saying just use a nail gap.
Apa recommends 1 8 inch expansion gap at all edges unless mfr states otherwise. Select one of our sites north america. Some older h clips do not provide a built in gap. H clips must fit snugly.
Help prevent sheathing warping our clips leave a precise 1 8 gap created from a full width spacer bar. Panel sheathing clips are used to brace unsupported sheathing edges and provide a 1 8 gap to address shrinkage and expansion of roof sheathing. 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. Not always required but a good idea.
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. Use the same size panel edge clip as the panel thickness. Without this full gap sheathing can expand under moist conditions and you can end up with.