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' SECTION 04200 - UNIT MASONRY <br /> ' PART 1 - GENERAL <br /> 1 . 01 RELATED DOCUMENTS <br /> ' A. Drawings and general provisions of Contract, including General and Supplementary <br /> Conditions and Division 1 Specification Sections , apply to work of this Section. <br /> ' 1 . 02 DESCRIPTION OF WORK <br /> ' A . Extent of each type of masonry work is indicated on drawings and schedule . <br /> 1 . 03 QUALITY ASSURANCE <br /> ' A . Construction Tolerances : <br /> 1 . Variation from Plumb : <br /> For vertical lines and surfaces of columns , do not exceed 1 /4 " , <br /> ' 2 . Variation in Cross- Sectional Dimensions : <br /> For columns and thickness of walls , from dimensions shown, do not exceed <br /> ' minus 1 /4 " nor plus ''/i " . <br /> 1 . 03 SUBMITTALS <br /> ' A . Product Data: <br /> Submit manufacturer ' s specifications and other data for each type of masonry unit, <br /> ' accessory, and other manufactured products, including certifications that each type <br /> complies with specified requirements . Include instructions for handling, storage , <br /> installations and protection. <br /> 1 . 04 JOB CONDITIONS <br /> A. Protection of Work : <br /> 1 . During erection, cover top of walls with heavy waterproof sheeting at end of <br /> each day ' s work. Cover partially completed structures when work is not in <br /> progress . <br /> B . Extend cover a minimum of 24 inches down both sides and hold cover securely in <br /> ' place . <br /> C . Staining : <br /> ' Prevent grout or mortar from staining the face of masonry to be left exposed or <br /> painted . Remove immediately grout or mortar in contact with such masonry . <br /> ' D . Protect sill , ledges and projections from droppings of mortar. <br /> 04200- 1 <br />