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PART 2 - PRODUCTS <br />2.1 FORM MATERIALS <br />A. Except for metal forms, use new materials. Materials may be re -used <br />during progress of the Work, provided they are completely cleaned and <br />reconditioned, re -coated for each use, and capable of producing <br />formwork of the required quality. <br />B. For footings and foundations, use Douglas Fir boards or planks secured <br />to wood or steel stakes, substantially constructed to shapes indicated and <br />to support the required loads. <br />C. For studs, wales, and supports, use Standard grade or better Douglas Fir, <br />dimensions as required to support the loads but not less than 2" x 4". <br />D. Wall forms: <br />1. Exposed concrete surfaces: <br />a. Use 3/4" minimum thickness Douglas Fir plywood, grade <br />B/B, class I or II, exterior, sanded both sides, complying <br />with PS-1. <br />b. Seal edges and coat both faces with colorless coating <br />which will not affect application of applied finishes. <br />2. Unexposed concrete surfaces: <br />a. Use 1" x 6" shiplap Douglas Fir boards, surfaced one side <br />and two edges, or 3/4" minimum thickness Douglas Fir <br />plywood, grade B/B ply form class I or II, sanded both <br />sides, mill -oiled. <br />2.2 FORM TIES <br />A. Hold inner and outer forms for vertical concrete together with <br />combination steel ties and spreaders approved by the Architect. <br />1. Space ties symmetrically in tiers and rows, each tier plumb from <br />top to bottom and each row level. <br />2. At horizontal pour lines, locate ties not more than 6" below the <br />pour lines. Tighten after concrete has set and before the next pour <br />is made. <br />3. For exposed concrete surfaces, provide form ties of removable <br />type with she -bolts equipped with permanent plugs and a system <br />approved by the Architect for fixing the plugs in place. <br />2.3 DESIGN OF FORMWORK <br />A. General: <br />03100-2 <br />