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DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C
<br /> SECTION 04 01 20.63 —BRICK MASONRY REPAIR
<br /> 2. Rebuilding (Setting) Mortar by Type: ASTM C270, Proportion Specification, [Type N] <Insert Type> unless
<br /> otherwise indicated; with cementitious material limited to [portland cement and lime] [masonry cement] [or]
<br /> [mortar cement].
<br /> 3. Rebuilding (Setting) Mortar by Property: ASTM C270, Property Specification, [Type N] <Insert Type> unless
<br /> otherwise indicated; with cementitious material limited to [portland cement and lime] [masonry cement] [or]
<br /> [mortar cement].
<br /> 4. Pigmented, Colored Mortar: Add mortar pigments to produce exposed, setting (rebuilding) mortar of colors
<br /> required.
<br /> PART 3 -EXECUTION
<br /> 3.1 REPAIR SPECIALIST
<br /> A. Brick Masonry Repair Specialist Firms: Subject to compliance with requirements, [have masonry repair performed
<br /> by one of the following] [firms that may perform masonry repair include, but are not limited to,the following]:
<br /> 1. <Insert, in separate subparagraphs, names of masonry repair specialist firms>.
<br /> 3.2 PROTECTION
<br /> A. Prevent mortar from staining face of surrounding masonry and other surfaces.
<br /> 1. Cover sills, ledges, and other projecting items to protect them from mortar droppings.
<br /> 2. Keep wall area wet below rebuilding and repair work to discourage mortar from adhering.
<br /> 3. Immediately remove mortar splatters in contact with exposed masonry and other surfaces.
<br /> B. Remove[gutters and]downspouts and associated hardware adjacent to masonry and store during masonry repair.
<br /> Reinstall when repairs are complete.
<br /> 1. Provide temporary rain drainage during work to direct water away from building.
<br /> 3.3 MASONRY REPAIR, GENERAL
<br /> A. Appearance Standard: Repaired surfaces are to have a uniform appearance as viewed from [20 feet(6 m)] [50 feet
<br /> (15 m)] <Insert distance>away by Architect.
<br /> 3.4 ABANDONED ANCHOR REMOVAL<Insert drawing designation>
<br /> A. Remove abandoned anchors, brackets, wood nailers, and other extraneous items [no longer in use unless
<br /> indicated to remain] [indicated to be removed].
<br /> 1. Remove items carefully to avoid spalling or cracking masonry.
<br /> 2. Notify Architect before proceeding if an item cannot be removed without damaging surrounding masonry. Do
<br /> the following where directed:
<br /> a. Cut or grind off item approximately[3/4 inch (20 mm)] <Insert dimension> beneath surface and core drill
<br /> a recess of same depth in surrounding masonry as close around item as practical.
<br /> b. Immediately paint exposed end of item with two coats of antirust coating, following coating manufacturer's
<br /> written instructions and without exceeding manufacturer's recommended dry film thickness per coat. Keep
<br /> paint off sides of recess.
<br /> 3. Patch hole where each item was removed unless directed to remove and replace bricks.
<br /> 3.5 BRICK REMOVAL AND REPLACEMENT<Insert drawing designation>
<br /> A. At locations indicated, remove bricks that are damaged, spalled, or deteriorated[or are to be reused]. Carefully
<br /> remove entire units from joint to joint, without damaging surrounding masonry, in a manner that permits
<br /> replacement with full-size units.
<br /> 1. When removing single bricks, remove material from center of brick and work toward outside edges.
<br /> B. Support and protect remaining masonry that surrounds removal area.
<br /> C. Maintain flashing, reinforcement, lintels, and adjoining construction in an undamaged condition.[Coordinate with
<br /> new flashing, reinforcement, and lintels,which are specified in other Sections.]
<br /> D. Notify Architect of unforeseen detrimental conditions including voids, cracks, bulges, and loose units in existing
<br /> masonry backup, rotted wood, rusted metal, and other deteriorated items.
<br /> E. Remove in an undamaged condition as many whole bricks as possible.
<br /> 1. Remove mortar, loose particles, and soil from brick by cleaning with hand chisels, brushes, and water.
<br /> 2. Remove sealants by cutting close to brick with utility knife and cleaning with solvents.
<br /> 3. Store brick for reuse. Store off ground, on skids, and protected from weather.
<br /> 4. Deliver cleaned brick not required for reuse to Owner unless otherwise indicated.
<br /> F. Clean masonry surrounding removal areas by removing mortar, dust, and loose particles in preparation for brick
<br /> replacement.
<br /> G. Replace removed damaged brick with other removed brick in good condition, where possible, [or with new
<br /> brick]matching existing brick. Do not use broken units unless they can be cut to usable size.
<br /> ©BOOMERANG DESIGN 04 01 20.63-6 510 Meadowlands Drive,Hillsborough, NC
<br /> BD#1835 ORANGE COUNTY,NC 12/07/2018
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