Placement Of Sheathing Clips For Roofing

Spacer type panel edge clips are available from some manufacturers.

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. Roof sheathing panel spacing hints. Generally 12 15mm ply is the most commonly used thickness. Doing this means you can go to the hardware store and be sure that you are buying the right amount of clips.

Check building code requirements for installation of panel edge clips. Keeps panels even for a level structural plane. Sheathing should be a minimum of 19 32 inch thick. Some older h clips do not provide a built in gap.

For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges. The typical thickness range for sheathing is 3 8 to 3 4 inch. Space between plywood panels as recommended by the american plywood association. Examine your roof for diagonal beams.

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. A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise. 8d ring shank nails should be used instead. This is to allow for adequate roof cavity ventilation.

You ll need to ensure the line is square and the sheet finishes 10 30mm from the fascia. Quick installation no nails required. The thickness of ply you install can vary depending on your builder and how your roof trusses are spaced. Never attach roof sheathing with staples.

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 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 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. Not always required but a good idea.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.