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8/06/2020 <br /> <br />04 01 20 MASONRY REPAIR Page 2 of 9 <br />c. Provide separate samples for mortar to be replaced at Buidings A and B and the <br />Recreation Center as color and texture are expected to be different. <br />2. Brick: Submit samples of ach type of brick unit to be used for replacing existing damaged <br />or missing units. Samples must clearly confirm shape, color, and surface texture to be <br />expected. If brick types include significant variation in color or texture, provide a <br />minimum of four bricks to show variation. Only if an acceptable match cannot be <br />obtained through a reasonable sample process will the Owner and Designer may consider <br />use of existing brick from another location of the building to ensure. <br />1.4 QUALITY ASSURANCE <br />A. Subcontractor Qualifications: Engage an experienced masonry repair and restoration contractor <br />to perform work of this Section. Firm shall have completed work similar in material, design, <br />and extent to that indicated for this Project with a record of successful in-service performance <br />with historic buildings and masonry materials over the past 5 years. Experience in only <br />installing new masonry construction is insufficient experience for the masonry repair and <br />restoration work required for this project. <br />1. Field Supervision: Masonry repair and restoration specialty firm shall maintain <br />experienced full-time supervisors on Project site during times that masonry repair work is <br />in progress. <br />B. Quality-Control Program: Prepare a written quality-control program for this Project to <br />systematically demonstrate the ability of personnel to properly follow methods and use <br />materials and tools without damaging existing masonry. Include provisions for supervising <br />performance and preventing damage. <br />C. Mockups: Prepare in-place mockup of masonry tuckpointing to demonstrate aesthetic effects of <br />new mortar, intended joint tooling, and to set quality standards for materials and execution prior <br />start of full work. <br />1.5 DELIVERY, STORAGE, AND HANDLING <br />A. Deliver new masonry units to Project site strapped together in suitable packs or pallets or in <br />heavy-duty cartons and protected against impact and chipping. <br />B. Deliver packaged materials to Project site in manufacturer's original and unopened containers, <br />labeled with manufacturer's name and type of products. <br />C. Store cementitious materials on elevated platforms, under cover, and in a dry location. Do not <br />use cementitious materials that have become damp. <br />D. Store pre-packaged mortar in manufacturer's original and unopened containers. Discard product <br />if containers have been damaged or have been left opened for longer than recommended by the <br />manufacturer. <br />E. Store loose granular materials where grading and other required characteristics can be <br />maintained and contamination of materials or surrounding surfaces avoided. <br />DocuSign Envelope ID: 7D9ACD4F-8F6C-42B6-9ADB-C60032DB6D03