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SPECIFICATIONS CONT.) <br /> • <br /> • Install with the long dimension or strength axis of the panel WALL INSTALLATION <br /> across supports and with the panel continuous over two or more <br /> spans. <br /> • Provide 1/8 in.space at panel ends and edges.Use a spacer tool • LP FlameBlock Fire-Rated OSB Sheathing panels may be <br /> (i.e.10d box nail)to ensure accurate and consistent spacing. installed vertically or horizontally.In horizontal installations, <br /> stagger joints a minimum of one stud space. <br /> • Panel end joints shall occur over framing.Stagger end joints in <br /> each succeeding row. • When installing LP FlameBlock Fire-Rated OSB Sheathing in <br /> walls,consult approved construction plans to determine the <br /> • For panels in the 7/16 and 15/32 category and thinner,provide proper orientation of the white,fire-resistant panel surface. <br /> additional panel stiffness by installing panel edge clips mid-span <br /> on all un-supported edges. • Provide 1/8 in.space between panel ends and edges.Use a <br /> spacer tool(i.e.10d box nail)to ensure accurate and consistent <br /> • Nail 6 in.o.c.along supported panel ends and edges and 12 in. spacing. <br /> o.c.at intermediate supports.Fasten panels 3/8 in.from panel <br /> edges.Use 8d common nails for panels up to 1 in.thickness.For • At minimum,nail 6 in.o.c.along supported panel ends and <br /> panels over 1 in.use 8d ring-shank or 10d common nails.Other edges and 12 in.o.c.at intermediate supports.Fasten panels <br /> code-approved fasteners may be used. 3/8 in.from panel edges.Use 6d common nails for panels up <br /> to 1 in.thickness.For panels over 1 in.use 8d ring-shank or 8d <br /> • Cover roof sheathing as soon as possible with roofing felt or common nails.Other code-approved fasteners may be used.For <br /> shingle underlayment for protection against excessive moisture additional fastening requirements,refer to Figure 3,NOTE:For <br /> prior to roofing.If any edge swelling occurs prior to roof underlay- sheer walls,use the fastener spacing specified in approved con- <br /> ment installation,the exposed wood substrate side of panels struction documents. <br /> with raised joints should besanded flat. <br /> • Remove wrinkles and flatten surface of shingle underlayment <br /> before installing shingles.High performance shingle underlay- <br /> ment is recommended for better results. <br /> • Heavier weight and/or textured shingles are recommended to <br /> better mask imperfections in roofing assembly. <br /> • When installed as roof deck in open eaves,the exposed under- <br /> side of panels,as well as any exposed edges,must be coated <br /> with exterior-grade paint. <br /> NOTE:Check with your local building department before deciding <br /> on an installation method. <br /> LP° FlameBlock® Fire-Rated Sheathing <br /> PRODUCT DSCRIPTION • Structural performance is verified by Progressive <br /> Engineering,Inc.(Report,PER-06013),www.p-e-i.com. <br /> LP FlameBlock Fire-Rated OSB Sheathing panels are designed for <br /> use in roof,wall and subfloor systems in commercial and residential Fire performance is verified by Omega Point/Intertel<(listing <br /> projects,maintenance,remodeling or new construction. 1532-4).Directory can be referenced at www.opl.com. <br /> STANDARDS & CERTIFICATIONS <br /> LP FlameBlock Fire-Rated OSB Sheathing panels comply with the <br /> following industry standards and certifications: <br /> • LP FlameBlock Fire-Rated OSB Sheathing panels are certified to <br /> comply with U.S.Voluntary Product Standard PS2,which is recog- <br /> nized in the Uniform Building Code,the International-Building Code <br /> and the International Residential Code,and by International Code <br /> Council Evaluation service(ICC-ES)Evaluation Report ESR-1365. <br />