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11 <br />C] <br />other conspicuous lines, do not exceed 1/41' in any story or <br />201 maximum, nor 1/2" in 40' or more. For vertical alignment <br />of head joints do not exceed plus or minus 1/4" in 101, 1/2" <br />maximum. <br />Variation �LrgM Level: For bed joints and lines of exposed <br />lintels, sills, parapets, horizontal grooves and other <br />conspicuous lines, do not exceed 1/4" in any bay or 20' <br />maximum, nor 1/2" in 40' or more. For top surface of bearing <br />walls do not exceed 1/8" between adjacent floor elements in <br />10' or 1/16" within width of a single unit. <br />Variation of Linear Building Line: For position shown in plan <br />and related portion of columns, walls and partitions, do not <br />exceed 1/2" in any bay or 201 maximum, nor 3/4" in 40' or <br />more. <br />Variation in Cross -Sectional Dimensions: For columns and <br />thickness of walls, from dimensions shown, do not exceed <br />minus 1/4" nor plus 1/211. <br />Variation in Mortar Joint Thickness: Do not exceed.bed joint <br />thickness indicated by more than plus or minus 1/8'., with a <br />maximum thickness limited to 1/211. Do not exceed head joint <br />thickness indicated by more than plus or minus 1/811. <br />LAYING MASONRY WALLS: <br />Layout walls in advance for accurate spacing of surface <br />bond patterns with uniform joint widths and to accurately <br />locate openings, movement -type joints, returns and offsets. <br />Avoid the use of less -than -half-size units at corners, jambs <br />and wherever possible at other locations. <br />Lay-up walls to comply with specified construction <br />tolerances, with courses accurately spaced and coordinated <br />with other work. <br />Stopping and Resuming Work: Rack back 1/2 -unit length in each <br />course; do not tooth. Clean exposed surfaces of set masonry, <br />wet units lightly of required) and remove loose masonry <br />units and mortar prior to laying fresh masonry. <br />Built-in Work: As the work progresses, build -in items <br />spb^: fied :dc this and :ether sect ioA s of these <br />specifications. Fill in solidly with masonry around built-in <br />items. <br />Fill space between hollow metal frames and masonry <br />solidly with mortar, unless otherwise indicated. <br />Where built-in items are to be embedded in cores of <br />hollow masonry units, place a layer of metal lath in the <br />joint below and rod mortar or grout into core. <br />Fill cores in hollow concrete masonry units with grout 3 <br />courses (24") under bearing plates, beams, lintels, <br />posts and similar items, unless otherwise indicated. <br />O4200-5 <br />