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F . Keep expansion joints free of mortar. <br /> G. Point joints by filling with sealant to comply with requirements in Division 7 Section " Joint Sealants . " <br /> H . Clean glass unit masonry assemblies as work progresses. Remove mortar fns and smears immediately, <br /> using a clean, wet sponge or a scrub brush with stiff fiber bristles. Do not use harsh cleaners, acids, <br /> abrasives, steel wool, or wire brushes when removing mortar or cleaning glass unit masonry assemblies . <br /> I. Install sealant at jambs, heads, mullions and other locations indicated. Prepare joints, including <br /> installation of primer and bond-breaker tape or cylindrical sealant backing, and apply elastomeric sealants <br /> to comply with requirements in Division 7 Section " Joint Sealants. " <br /> J. Construction Tolerances : Set glass block to comply with the following tolerances : <br /> 1 . Variation from Plumb : For lines and surfaces of vertical elements and arris, do not exceed 1 /4 <br /> inch in 10 feet (6 mm in 3 m), 3/8 inch in 20 feet (9 mm in 6 m), or 1 /2 inch in 40 feet ( 12 mm in <br /> 12 m) or more. <br /> 2 . Variation from Level: For bed joints, and other conspicuous lines, do not exceed 1 /4 inch in 20 <br /> feet (6 mm in 6 m) or 1 /2 inch in 40 feet ( 12 mm in 12 m) or more . <br /> 3 . Variation of Linear Building Line : For positions shown in plan and related portions of walls and <br /> partitions, do not exceed 1 /2 inch in 20 feet ( 12 mm in 6 m) or 3/4 inch in 40 feet ( 19 mm in 12 m) <br /> or more. <br /> 4 . Variation in Mortar-Joint Thickness : Do not vary from joint thickness indicated by more than plus <br /> or minus 1 / 16 inch ( 1 . 5 mm) . <br /> 3 .3 CLEANING <br /> A. On surfaces adjacent to glass unit masonry assemblies , remove mortar, sealants, and other residue <br /> resulting from glass-block installation, in a manner approved by manufacturers of materials involved . <br /> B . Remove excess sealants with commercial solvents of type recommended by sealant manufacturer. <br /> Exercise care not to damage sealant in joints. <br /> C . Perform final cleaning of glass unit masonry assemblies when surface is not exposed to direct sunlight. <br /> Start at top of panel using generous amounts of clean water. Remove water with clean, dry, soft cloths ; <br /> change cloths frequently to eliminate dried mortar particles and aggregate . <br /> END OF SECTION 04815 <br /> Wabasso Beach Park <br /> Indian River County <br /> DAA Project No . 6008 <br /> 04815 -5 <br />