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<br />dimension across studs. <br /> <br />4. 3-ply plywood panels shall be applied with long dimension across <br />studs. <br /> <br />Exceptions: <br /> <br />1. The top plates are two 2x6 or two 3x4 members. <br /> <br />2. A third top plate is installed. <br /> <br />3. Solid blocking equal in size to the studs is installed to <br />reinforce the double top plate. <br /> <br />S2308.1.5 Studs shall be capped with double top plates installed to <br />provide overlapping at corners and at intersections with bearing <br />partitions. End joints in double top plates shall be offset at least 24 <br />inches (610 rom). In lieu of double top plates, a continuous header may <br />be used. <br /> <br />EXCEPTION: A single 2x6 top plate installed in 2x6 bearing and <br />exterior walls provided the plate is adequately tied at joints, corners <br />and intersecting walls by at least the equivalent of 3x6xO.036-inch <br />(76x152xO.91 rom) thick galvanized steel nailed to each wall or segment <br />of wall by three 8d nails or equivalent, provided the rafters or joists <br />are centered over the studs with a tolerance of no more than 1 inch <br />(25.4 rom). Top plates may be omitted over lintels which are adequately <br />tied to adjacent wall sections as previously described or with lx4xl2- <br />inch (305 rom) wood members splice nailed to each wall section by three <br />8d nails or equivalent. <br /> <br />TABLE 2308.1C <br />ALLOWABLE SPANS FOR PARTICLEBOARD WALL SHEATHING { 1 } <br /> <br />STUD SPACING (IN.) <br /> <br />GRADE <br /> <br />THICmESS <br />(IN. ) <br /> <br />SIDING <br />NAILED TO <br />STUDS <br /> <br />SHEATHING UNDER <br />COVERINGS SPECIFIED IN <br />SI403.6.3 AND S1403.7 <br /> <br />M-S <br />Exterior Glue <br /> <br />3/8 <br />1/2 <br /> <br />16 <br />16 <br /> <br />16 <br /> <br />For SI: 1 inch <br /> <br />25.4 rom. <br /> <br />NOTES: <br /> <br />1. Not exposed to the weather. Long dimension parallel or perpendicular <br />to studs. <br /> <br />TABLE 2308.1D <br />PLYWOOD EXTERIOR WALL COVERINGS {1} <br /> <br />WALL <br />COVERING <br /> <br />PLYWOOD { 2 } <br />THIClmESS <br />(IN. ) <br /> <br />n <br />I / <br />I NAIL I <br />ISIZEI <br /> <br />NAIL TYPE <br /> <br />I I <br />/PANELI <br />I EDGES I <br />I (IN.) I <br /> <br />NAIL SPACING <br />ON SUPPORTS <br />INTERMEDIATE <br />(IN. ) <br /> <br />Panel Siding{4} 3/8, 1/2 6d Noncorrosive, 6 12 on each stud <br /> 5/8 & thicker 8d box or casing 6 12 on each stud <br /> nails <br />Lap Siding 1/2 thick 6d Noncorrosive, 8{5} One nail per <br />(over or less 8d box or casing stud on widths <br />