(7/16" OSB or ½" Plywood nailing, use 8d common nails at 6" on-center at the edges and 6" on-center in the field.). Nailheads or staple crowns shall not penetrate the sheathing surface or plywood "skin." Partial sheets shall be used at roof ends or valleys only. OSB must have a rough side up.
For example, according to the table, 7/16″ OSB (Oriented Strand Board) wall sheathing may be fastened with 6d common, box or casing nails OR 1-3/4″ 16 gage staples at 6″ on center at the panel edges and 12″ on center in the field (special conditions apply for shear walls).
EAGLE 1 Metal Roofing Screws #10 - Painted Hex Head Self-Tapping Screws with EDPM Rubber Washer for Metal to Wood, Vinyl, Small Sheet Metal - Free Magnetic Driver (Burnished Slate, 2 Inch, 1000) Best screws I've found for 7/16" OSB. Others will strip very easily.
5/8-inch Plywood or OSB: Use 10d common nails or 10d ring-shank nails.
Typically, screws are best for OSB and softwoods due to the heightened chance of splitting and easier removal at a future date. This results in a weaker connection and can damage the integrity of the subfloor or sheathing. Plus, OSB subfloors applied with nails rather than screws are more likely to creak.
Nails are a popular selection for roofing, siding and sheathing projects. The amount of fasteners that are needed in these projects makes nails a more attractive choice because they offer a lower price point.
The standard nailing pattern for sheathing depends on the type of sheathing material and the local building codes. However, a common nailing pattern for wood structural panels (plywood or OSB) is to place nails every 6 inches along panel edges and every 12 inches along intermediate supports (studs, joists, rafters).
For plywood sheathing, the most typical size nail used is the 8d nail. These nails are robust enough to penetrate the plywood and secure it effectively to the underlying studs or trusses. The 8d nail is approximately 2.5 inches long and offers the right balance of length and thickness to provide a stronghold.
Select the appropriate thickness for wood structural sheathing panels. Minimum: 7/16” thickness.
Nails used for framing and sheathing connections shall have minimum average bending yield strengths as shown: 80 ksi for shank diameter of 0.192 inch (20d common nail), 90 ksi for shank diameters larger than 0.142 inch but not larger than 0.177 inch, and 100 ksi for shank diameters of 0.142 inch or less.
"When fastening the upper layer of plywood, OSB, or 2x4s above the rigid foam, use the same number of screws that you would use for furring strips installed on walls—basically, one screw every 24 inches along each rafter, with a minimum penetration into solid wood of 1½ inch.
Some framers think the holding power of a staple is equal to that of a nail; wrong! It takes twice as many staples to hold a roof or wall sheathing in place than it does when you use nails. Here are some facts about staples: Always check with your building department to see if there are local requirements.
For best performance, you should use ring roofing nails that are made of hot‐dipped galvanized steel. You should use 12-gauge or thicker. The length of nail you use depends on the thickness of the sheathing and shingles you use.
On the other hand, a staple on its own can often lack the strength needed for an application, when compared to a nail or screw. A staple's small surface area also means that it's vulnerable to shifting over time.
120 nails can be used for interior framing just to name a few applications. Also general use like shelving, sheds, pallets, whatever else.
(7/16" OSB or ½" Plywood nailing, use 8d common nails at 6" on-center at the edges and 6" on-center in the field.). Nailheads or staple crowns shall not penetrate the sheathing surface or plywood "skin." Partial sheets shall be used at roof ends or valleys only. OSB must have a rough side up.
OSB doesn't hold screws, nails, and fasteners as firmly as plywood. OSB swells more than plywood when it comes in contact with moisture, and it generally remains swollen to some degree.
Provide 1/8” minimum space between panel ends and edges. Use a spacer tool (i.e. 10d box nail) to assure accurate and consistent spacing. Nail 6” o.c. along supported panel ends and edges and 12” oc at intermediate supports. Fasten panels 3/8” from panel edges.
9204.4. 1.1 Sheathing Requirements
All wood structural panels shall be nailed with 8d common nails spaced four inches (102 mm) on center at all edges and at 12 inches (305 mm) on center at each intermediate support with not less than two nails for each stud.
Fasten panels with a minimum of 8d Common (0.131-inch by 2-1/2-inch) nails spaced a maximum of 6 inches on center at supported panel ends and edges.
APA recommends a 1/8-inch space between panel edge and end joints. Plywood and oriented strand board (OSB), like all wood products, will expand or shrink slightly with changes in moisture content. If the wood structural panels are tightly butted, there is no room for expansion and buckling can occur.
A nail subject to the same forces is much more likely to bend without breaking, which in turn keeps the two pieces of wood joined together.
Answer. OSB roof panels should always be installed with the grade stamp facing into the attic and the screened surface (with the nail guide lines) facing up.
common nails or 16 ga. Staple 1.5" long, spaced a maximum of 3" along the edge and 6" in field of the material. common nails, or 16 ga. Staples 1.75" long, spaced a maximum of 3" along the edge and 6" in field of the material.