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B. Lath: Attach to framing or substrate in accordance with ASTM C 1063, lapping sides not <br /> less than 1/2 inch and ends not less than 1 inch. <br /> C. Accessories <br /> 1. Attach level, plumb and true to create a proper screed and depth for the cement <br /> plaster. <br /> 2. Install control joints to create panels relatively square,not larger than 144 square feet, <br /> and with no dimension exceeding 18 feet or a length to width ratio of 2-1/2:1,unless <br /> otherwise shown on the Drawings. <br /> D. Access Panels and Vents:Install accurately located and secured to substrate with appropriate <br /> fasteners as per sections 08310 and 10200. <br /> E. Portland Cement Plaster <br /> 1. Total tluckness to meet code requirements. <br /> 2. Nominal plaster base coat thicknesses <br /> a. First coat"scratch: 3/8 inch. <br /> b. Second "brown": 3/8 inch. <br /> 3. Apply the scratch coat of cement plaster with sufficient force(by hand or machine) <br /> to fill solidly openings in the lath. <br /> 4. Horizontally cross rake the scratch coat slightly to provide key for second base coat. <br /> Coat must be uniform in thickness. <br /> 5. The double-back method of application(first and second coats are applied and cured <br /> as one system)may be used. <br /> a. Apply the second coat(brown)as soon as the scratch coat is rigid. <br /> 6. Apply second coat to provide the required total thiclrness. Coat must be uniform in <br /> thickness.Rod off level to screeds,to provide a hue flat plane. Follow this by wood <br /> floating or darbying the surface. Fill voids and dress surface for finish. <br /> 7. Completed second coat of cement plaster shall cure a minimum 7 days, prior to <br /> application of the finish coat. <br /> F. Stucco Finish Coat <br /> 1. Stucco finish coat shall be applied with su�cient material and pressure to bond to <br /> and cover the brown coa� <br /> 3.3 CLE.�NING <br /> A. Remove spattering of plaster from other finished surfaces,paving and Walks. <br /> B. Remove and legally dispose of plaster system installation debris materiai from project site. <br /> END OF SECTION 04300 <br /> STUCCO <br /> Page 6 of 6 <br />