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1 <br /> E. Research reports or evaluation reports of the model code organization acceptable to ' <br /> . authorities having jurisrliction evidencing compliance of the following wood products with <br /> specified requirements and building code in effect for Projec�. <br /> l. Engineered wood products. ' <br /> 2. Air infillration barriers. <br /> 3. Metal framing anchors. <br /> 4. Power driven fasteners. , <br /> 5. Treated wood products. <br /> 1.5 QUALITY ASSURANCE <br /> A. Single-SourceResponsibilityforEngineeredWoodProducts: Obtaineachtypeofengineered ' <br /> wood products from one source froxn a singie manufacturer. <br /> B. Single-Source Responsibility for Treated Wood: Obtain treated wood products from one t <br /> source. <br /> 1.6 DELNERY,STORAGE,AND HANDLIl�TG ' <br /> A. Delivery and Storage: Keep materials under cover and dry. Protect against exposure to <br /> weather and contact with damp or wet surfaces. Stack lumber as welt as piywood and other ' <br /> panels;provide for air circutation within and around stacks and under temporary coverings <br /> including polyethylene and similar materials. <br /> 1. For lumber and plywood pressure treateii with waterborne chemicals,place spacers � , <br /> between each bundle to provide air circuIation. <br /> PART 2-PRODUCTS <br /> 2.1 LUMBER,GENERAL I <br /> A. Lumber Standards: Furnish lumber�anufacturedto corriply with PS 20"American Soflwood ' <br /> Lumber Standard" and with appiicable grading rules of irzspecEion agencies certifed by <br /> American Lumber Standards Committee's(ALSC)Board of Review. <br /> 1. SPIB-Southern Pine Iuspection Bureau. ' <br /> 2. WCLIB-West Caast Lumber Inspection Bureau. <br /> 3. WWPA-Westem Wood Prodacts Association. <br /> B_ Grade Stamps: Provide lumber with each piece factory-marked with grade st�amp of ' <br /> inspection agency evidencing compliance with gcading rule requirements and identifying <br /> gradiri�agency,grade,species,moisture content at time of surfacing,and mill. <br /> I. For exposed lumber fu�ish pieces with grade stamps applied to ends or back of each ' <br /> piece; or omit gtade stamps entirely and provide certificates of grade compiiance <br /> issued by inspection agency. ' <br /> C. Nominal sizes are indic�ted,except as shown by detaii dimensions. Provide actual sizes as <br /> required by PS 20,for moistnre content spec�ed for each use. <br /> 1. Provide dressed Iumber,S4S,unless otherwise indicated. ' <br /> 2. Provide seasoned lumber with i9 percent maximwn moisture content at time of <br /> dressing and shipment for sizes 2 inches or less in nominal thickness, unless ' <br /> otherwise indicated. <br /> ROUGH CARPENTRY Page 2 of 7 ' <br /> , <br />