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' � �� Page 9 <br /> ` STRUCTURAL SPECIFICATION <br /> SWEATT RESIDENCE <br /> WAYZATA MN <br /> ARCHISTRUCTURES #9512-3 <br /> PART 3:CONSTRUCTION B. Grade stamp: Each piece of lumber and heavy <br /> timber shall be grade stamped by an agency <br /> 3.01 INSTALLATION certified by the American Lumber Standards <br /> Committee. <br /> A. Contractor is responsible to select and install the <br /> proper connectors and supports for wood <br /> members such as joists,rafters and columns. PART 2 :MATERIALS <br /> B. Contractor is also responsible for connections 2.01 DIMENSIONAL LUMBER <br /> wherever a loading is marked in pounds on the <br /> drawings. A. Dimensional lumber: Shall be dressed S4S <br /> unless specified otherwise by architect. <br /> *** <br /> B. Moisture content: Shall be 19% or less at <br /> installation. Under no circumstances shall green <br /> SECTION lumber with moisture content greater than 19% <br /> 06100 be used. <br /> C. Rafters: 2x8 dimension or deeper shall be #2 <br /> RO U G H CA R P E N T RY Douglas Fir or better. 2x4 or 2x6 shall be #2 <br /> Hem-Fir or better. <br /> PART 1:GENERAL D. Preservative treatment:All lumber exposed to <br /> wet conditions shall be treated with a <br /> 1.01 SCOPE waterborne preservative in accordance with <br /> American Wood Preservers Association AWPA <br /> A. Work included: This section covers all C2-89.Each piece shall bear the AWPA quality <br /> materials and construction related to rough mark. Field cut pieces shall be treated with a <br /> carpentry as shown on the construction brush coat of the same preservative in <br /> drawings. accordance with AWPA M4-84. <br /> B. Related work• 1. Exterior location: Unless specified as #2 <br /> Cedar by the architect, all wood materials <br /> 1. Section 06060: Wood connectors& shall be #2 Southern Pine treated to the <br /> su orts. following retentions: <br /> PP <br /> 1.02 DEFINITIONS • Above ground:0.40 retention. <br /> A. Dimensional lumber: Wood materials with at • Ground contact:0.60 retention. <br /> least one cross-sectional dimension that is less <br /> than 4 inches nominal. <br /> PART 3:CONSTRUCTION <br /> B. Heavy timber: Wood materials of greater than ' <br /> 4 inches nominal in both cross-sectional 3.02 PROPER COLUMN BEARING <br /> dimensions. <br /> A. All wood columns shall beaz true, flush and <br /> 1.03 QUALITY ASSURANCE level so that column loads are transfered over <br /> the full cross-sectional area of the column. <br /> A. Standard: Perform all work in accordance <br /> with the 1991 edition of National Design *** <br /> Specification jor Wood Construction. <br /> SECTION <br />