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TABLE 4 OF ARTICLE S <br />ALLOWABLE VALUES OF NEW MATERIALS U5ED <br />IN CONJUNCTION WITH EXISTING CONSTRUCTION <br />NEW MATERIALS OR CONFIGURATION <br />ALLOWABLE VALi~ES <br />OF MATERIALS <br />1. Horizontal Diaphragms <br />Plywood sheathing applied directly over <br />existing straight sheathing with ends of <br />plywood sheets bearing on joists or rafters <br />and edges of plywood located on center of <br />individual sheathing boards. <br />Same as specified in Table No. 25-J of the <br />Building Code for blocked diaphragms. <br />2. Shear Walls <br />a. Plywood sheathing applied directly <br />over existing wood studs.(No value shall be <br />given to plywood applied over existing plaster <br />or wood sheathing.) <br />Same as values specified in Table No.25-K of <br />the Building Code for shear walls. <br />b. Dry wall or plaster applied directly <br />over existing wood studs. <br />c. Dry wall or plaster applied to plywood <br />sheathing over existing wood studs. <br />75 percent of the values specified in Table <br />47-I of the Building Code. <br />33 1/3 percent of the values specified in Table <br />No. 47-I of the Building Code. <br />18 <br />