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Joists shall bear the full width of supporting members (stud wall, beams, etc.). Provide solid vertical blocking at all joist spaces below wood columns. Provide matching columns to foundation at lower levels below columns comprised of 3 or more studs. All beams and joists not bearing on supporting members shall be framed with prefabricated joist hangers. Beams or headers made of 2 - 2x's shall be nailed together with 16d nails (.162" x 3 1/2") at 16"on center along each edge, typical for each lumber ply. Spacing of bridging for joists shall not exceed 8'-0". Double all joists under parallel partitions. All plywood and OSB shall be installed per American Plywood Association standards, including the use of construction adhesive for fastening to floor joists. All fasteners and hangers in contact with treated lumber shall be G185 hot dipped galvanized or equal. Lumber grading rules and wood species shall conform to Voluntary Product Standard PS 20-99 as published by the Department of Commerce. Grading rules shall be by an agency certified by the Board of Review of the American Lumber Standards Committee. Performance requirements, adhesive bond performance, panel construction and workmanship, dimensions and tolerances, marking, and moisture content of Wood-based Structural-use Panels shall conform to Voluntary Product Standard PS 2-92, as published by the Department of Commerce. WOOD TRUSSES Responsibilities of the contractor, building designer, truss manufacturer, and truss designer shall follow the publication "TPI 1-2002 National Design Standard for Metal Plate Connected Wood Truss Construction." Truss supplier shall notify SER of any proposed revisions to the layout indicated on this plan. Revisions that affect the structural design will not be allowed without prior written approval by the SER. Trusses shall be designed for top and bottom chord superimposed dead and live loads as indicated above. Truss supplier shall design trusses to support additional dead load from, but not limited to, sprinkler lines, and rain leader systems, piping, cable trays, ductwork, etc., as per IRC. Coordinate with mechanical/electrical as required. General contractor to verify location and magnitude of all such loads with truss supplier and SER prior to fabrication of trusses. See architectural plans for attic draft stop locations and design roof trusses accordingly. Live load deflection of roof trusses shall be limited to 1/240 of the span. Live load deflection of floor trusses shall be limited to 1/480 of the span. Design trusses for top chord bearing or bottom chord bearing as shown on drawings. Truss configuration, pitch, overhang, etc. shall be indicated on the architectural drawings. Spacing of roof trusses shall not exceed 24"on center. Lumber for wood trusses shall be in accordance with manufacturer's recommendations. Truss manufacturer to provide girder trusses, hip jacks, and step-down trusses as required and designed to support all superimposed loads. Provide hip-sets, dormers, and piggy-back trusses as required. Truss manufacturer to specify if roof sheathing needs to be applied before placing "over-framing". Provide metal framing anchors at truss bearing to mechanically fasten truss to bearing wall or supporting member as shown in details. Truss manufacturer shall provide truss to truss connection hangers. Bridging, and bracing of truss compression and tension members, shall be installed in accordance with the truss manufacturer's design and directions. No cutting, notching, or modifications of trusses will be allowed without the manufacturer's written approval. Contractor shall provide permanent and temporary diagonat, lateral, and cross bracing in accordance with the publication "BCSI 1-03 Building Component Safety Information, Guide to Good Practice for Handling, Installing and Bracing of Metal Plate Connected Wood Trusses" by the Truss Plate Institute and Wood Truss Council of America and as otherwise necessary. For spans longer than 60ft., contractor shall hire a structural engineer to design the necessary bracing. Permanent bottom chord bracing and web bracing shall be located as shown on the truss drawings and shall be minimum 2 x 4 with 2 - 16d nails to end walls and trusses, lapping two truss spaces at splices. Provide double hurricane clips at multiple ply trusses. WALL SHEATHING Wall sheathing shall be minimum 15/32"thick APA rated panels, rated for spacing of supporting members. A minimum 32/16 span rating is recommended. Provide Exterior or Exposure 1 grade. Panels shall be continuous over two or more spans, and long dimension of panel shall be either perpendicular or parallel to supports. Fasten wall sheathing with 8d nails +._ . �- :.. i. .-,a �-`fl �,�b