Placement Of Sheathing Clips For Roofing

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.

Placement of sheathing clips for roofing.

Quick installation no nails required. Keeps panels even for a level structural plane. You ll need to ensure the line is square and the sheet finishes 10 30mm from the fascia. Roof sheathing panel spacing hints.

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. 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. 8d ring shank nails should be used instead.

Not always required but a good idea. Check building code requirements for installation of panel edge clips. Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing. A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise.

Examine your roof for diagonal beams. Panel sheathing clips are used to brace unsupported panel edges when sheathing meets edge to edge without a rafter for support. 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. Space between plywood panels as recommended by the american plywood association.

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. The typical thickness range for sheathing is 3 8 to 3 4 inch. You need to get into the attic of your roof using a ladder and inspect the connections between the diagonal beams and horizontal beams. The thickness of ply you install can vary depending on your builder and how your roof trusses are spaced.

For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges. Spacer type panel edge clips are available from some manufacturers. Never attach roof sheathing with staples. This is to allow for adequate roof cavity ventilation.

Doing this means you can go to the hardware store and be sure that you are buying the right amount of clips.