Quick Answer: How Many H-clips Per Sheet Of Plywood?

Are H-clips required on roof sheathing?

H-clips are referred to in the APA Guide as “edge support.” For the most common roof sheathing in our area, which is 1/2” nominal (7/16” actual) sheathing over trusses or rafters at 24” on center, there is no requirement for H-clips. One or two H-clips will often allow a longer span between roof trusses/rafters.

Are plywood clips required by code?

Anyone installing 7/16″ OSB or plywood on 24 inch spans without end supports (clips) is in violation of “commonly accepted building standards” (the IRC) unless your jurisdiction has chosen to exclude that requirement by law.

Where do plywood clips go?

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. Plywood clips are inserted by hand and the procedure is done in conjunction with installation of the sheathing.

What are plywood H-clips used for?

H-clips, also called panel-edge clips, are small steel devices that fit snugly between wood panels in order to provide them with edge support. They are often used with roof sheathing to keep it from feeling spongy or soft at its edges.

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Where do you put H clips?

Figure 1. Panel edge clip (H-clip) installation Top right: H-clip installed between adjacent roof sheathing panels and in between supporting trusses.

Should I use OSB or plywood for roof?

OSB takes longer than plywood to get saturated, but also takes much longer to dry out. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks.

Do you need plywood clips on 5/8 plywood?

According to the table in response #9, they’re only required for 5/8″ OSB with support spacing between 32″ and 40″. Obviously, adding them would make the sheathing stiffer than without them, at any span.

What is roof decking code?

For new construction, the roof decking shall be minimum 11 mm (7/16”) thick O.S.B. or minimum 12.7 mm (1/2”) thick plywood sheathing. When reroofing, plywood or O.S.B. roof sheathing shall be minimum 10 mm (3/8”) thick.

What is a roof clip?

To begin, let’s define a clip: It’s a concealed anchor that attaches a metal panel to the substrate (roof deck or other material beneath the metal panels) with the use of fasteners. Clips are sometimes referred to as cleats as well.

What are hurricane clips?

What is a hurricane clip? Hurricane Ties, also known as rafter ties, truss ties, or hurricane clips, are used for deck or roof framing to secure rafters, trusses, or joists to the wood framework. This is done to resist uplift and lateral forces, like those that come from a hurricane or severe storm.

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What are panel sheathing clips used for?

Panel sheathing clips are used to brace unsupported panel edges when sheathing meets edge-to-edge without a rafter for support.

What is a roof truss in construction?

A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. A roof truss is cross-braced into a stable, rigid unit. Ideally, it balances all of the lateral forces against one another, and thrusts only directly downwards on the supporting walls.

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