H Clips Required Roof Sheathing

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.

H clips required roof sheathing.

The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. Never attach roof sheathing with staples. Always ensure your work site is compliant with current osha regulations. A builder who uses h clips may need fewer rafters to complete a project because the distance between them can be increased.

This video may depict some work practices that do not meet current safety standards. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. If you re fastening 1 2 inch or 5 8 inch zip system roofing panels to rafters or trusses on the typical 16 inch or 24 inch spacing h clips aren t needed. The typical thickness range for sheathing is 3 8 to 3 4 inch.

In either case the cost of the job is reduced. H clips do not prevent wooden panels from buckling or warping. Their size should match the thickness of the panels to which they are attached. For 7 16 inch zip system panels huber engineered woods requires panel edge support blocking or approved edge clips if the on center spacing of the framing members exceeds 16 inches.

Avoid roof complaints with proper framing sheathing and roofing techniques. They are often used with roof sheathing to keep it from feeling spongy or soft at its edges. 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 may also allow builders to use thinner sheathing than they otherwise would be permitted to use.

Some older h clips do not provide a built in gap. Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 9 5 mm head complying with astm f1667 of a length to penetrate through the roofing materials and not less than 3 4 inch 19 1 mm into the roof sheathing. Not always required but a good idea. 8d ring shank nails should be used instead.