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' <br /> of the corner, every 6"vertically. <br /> 3. Fasten the lath using nails or staples to the studs on 6 inches vertically with a minimum of ' <br /> 1 inch penetration. <br /> 4. Intermediate fastening to ensure continuous contact of the lath to the substrate is <br /> required. ' <br /> 5. Install expansion, contraction and accessories as indicated and required. <br /> C. Install reinforced cement scratch coat solid and tight to lath. Rake surface when stiff prior to <br /> beginning curing operation. Fully cure scratch coat prior to beginning stone installation. ' <br /> D. Lavout coursina and corners. <br /> �lies. <br /> 1. Units shall be coursed and laid from top to bottom. <br /> 2. Units shall be coursed and laid from bottom to top. r <br /> E. Set units using industry accepted mortared masonry techniques: <br /> 1. Using a trowel, apply 1/2 inch of mortar to the back of the stone piece, covering half of the , <br /> stone the entire length. <br /> 2. Press onto the prepared wall surface with "wiggle" motion when setting units. <br /> 3. Remove excess mortar before installing adjacent stones. Keep the face of the stone <br /> clean. , <br /> 4. Leave joints open at cornices, copings, projecting courses, and abutting dissimilar <br /> materials. <br /> 5. Provide expansion joints in the coursing to coincide with wall expansion joints in � <br /> substrate. <br /> 6. Keep stone at least 3 inches above grade. <br /> F. Mortar Grout Joints: � <br /> 1. Grout units with a grout bag technique. <br /> 2. Rake top of joint and detail to create a uniform surface and solid joint. <br /> 3. Replace cracked mortar. �� <br /> G. Open Joints: Install sealant backer, prime joint surfaces, and install sealant with tooled joint <br /> surface matching mortar joints to comply with Section 07920. <br /> H. Clean stone surface after pointing mortar has set; use dry soft fiber brushes. � <br /> 3.4 CLEANING AND PROTECTION <br /> A. Protect installed units from mud, dirt, cement, paint, sealant, and other materials until completion ' <br /> of project; clean soiled units. <br /> B. To clean, use fiber brushes and clean water if needed; DO NOT clean with acid or commercial <br /> cleaners unless specifically approved by manufacturer. , <br /> C. Repair or replace damaged units and units that cannot be adequately cleaned before Substantial <br /> Completion; for repair, use only mechanics and techniques approved by manufacturer. <br /> END OF SECTION , <br /> , <br /> ' <br /> 1 <br /> ���: <br /> ' <br /> 04730-8 � <br />