PROJECT 9422.00 SEALS PAGE 00 0107 - 1

SECTION 00 0107

SEALS PAGE

I hereby certify that the portion of this technical submission described below was prepared by me or under my direct supervision and responsible charge.

Discipline:_____Architecture__________________ Stamp:

Company Name:____Horizon Architecture_______

Address:___3116 Alpine Court_________________

Telephone:___(563) 506-4965__________________

Name:___Michael Nolan, AIA__________________ Responsibility: All Architecture Sheets and Specs

License#:___06926_________________________ ______________________________________

License#:__06926__________________________ ______________________________________

END OF SECTION

Activity ID Activity Name Original

Duration

Start Finish

ASP Tuckpointing Priorities 7,8,&9 - Bid ScheduleASP Tuckpointing Priorities 7,8,&9 - Bid Schedule224 07-Apr-25 02-Mar-26

PreconstructionPreconstruction 35 07-Apr-25 27-May-25

A1000 Submit to Procurement 1 07-Apr-25 07-Apr-25

A1010 Bidding 25 08-Apr-25 13-May-25

A1020 Issue NOI 2 14-May-25 15-May-25

A1030 802 Contract 5 16-May-25 22-May-25

A1040 Populate Procore Submittals & Drawings 2 23-May-25 27-May-25

Submit, Approve & ProcureSubmit, Approve & Procure 60 28-May-25 20-Aug-25

A1050 Contractor Upload Submittals 10 28-May-25 10-Jun-25

A1060 McGough & A/E Review Submittals 10 11-Jun-25 24-Jun-25

A1070 Procure Materials 15 25-Jun-25 16-Jul-25

A1160 Procure Replacement Stones 40 25-Jun-25 20-Aug-25

ConstructionConstruction 122 17-Jul-25 15-Jan-26

A1080 Moblize to Site 2 17-Jul-25 18-Jul-25

A1090 LUE Tuckpointing 15 21-Jul-25 08-Aug-25

A1100 LUC Tuckpointing 25 11-Aug-25 15-Sep-25

A1110 LUA Tuckpointing 25 16-Sep-25 20-Oct-25

A1140 Stone Demolition 5 16-Sep-25 22-Sep-25

A1170 Install of Replacement Stones LUA 10 23-Sep-25 06-Oct-25

A1150 Roofing Repair LUA 10 07-Oct-25 20-Oct-25

A1120 Maintinance Building Tuckpointing 25 21-Oct-25 24-Nov-25

A1130 Kitchen/Dining Hall/ Chapel Tuckpointing 30 25-Nov-25 15-Jan-26

CloseoutCloseout 32 16-Jan-26 02-Mar-26

A1180 Punchlist 10 16-Jan-26 29-Jan-26

A1190 Substantial Completion 1 30-Jan-26 30-Jan-26

A1200 Closeout Documents 20 02-Feb-26 27-Feb-26

A1210 Final Completion 1 02-Mar-26 02-Mar-26

06 13 20 27 04 11 18 25 01 08 15 22 29 06 13 20 27 03 10 17 24 31 07 14 21 28 05 12 19 26 02 09 16 23 30 07 14 21 28 04 11 18 25 01 08 15 22 01 08 15

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April May June July August September October November December January February March

Submit to Procurement

Bidding

Issue NOI

802 Contract

Populate Procore Submittals & Drawings

Contractor Upload Submittals

McGough & A/E Review Submittals

Procure Materials

Procure Replacement Stones

Moblize to Site

LUE Tuckpointing

LUC Tuckpointing

LUA Tuckpointing

Stone Demolition

Install of Replacement Stones LUA

Roofing Repair LUA

Maintinance Building Tuckpointing

Kitchen/Dining Hall/ Chapel Tuckpointing

Punchlist

Substantial Completion

Closeout Documents

Final Completion

Remaining Level of Effort

Actual Work

Remaining Work

Critical Remaining Work

Milestone

DAS #9422.00 ASP Tuckpointing Priorities Schedule - 04/02/25

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PROJECT 9422.00

SELECTIVE STRUCTURE

DEMOLITION

024119 - 1

SECTION 024119

SELECTIVE STRUCTURE DEMOLITION

PART 1 GENERAL

1.01 SUMMARY

A. Related Documents:

1. Drawings and general provisions of the Contract apply to this Section.

2. Review these documents for coordination with additional requirements and information that apply to work under this Section.

B. Section Includes: Selective demolition as follows:

1. Remove architectural, structural, plumbing, fire protection, mechanical and electrical materials and equipment as indicated or required for new construction.

2. Remove materials from site, and dispose of legally.

3. Disconnect, remove, cap and identify utilities for later reconnection.

C. Related Sections:

1. Division 01 Section "Submittal Procedures."

2. Division 01 Section "Construction Waste Management".

1.02 SUBMITTALS

A. Submit under provisions of Division 01 Section "Submittal Procedures."

B. Project Record Documents: Accurately record locations of capped utilities.

1.03 QUALITY ASSURANCE

A. Regulatory Requirements:

1. Comply with requirements of applicable codes, rules and regulations.

2. Do not close or obstruct roadways or sidewalks without permits.

3. Maintain building and room egress and access at all times. Do not reduce required egress width to exits.

4. Minimize interference with corridors, exits, sidewalks, roadways and public thoroughfares.

5. Comply with applicable procedures if hazardous or contaminated materials are discovered or suspected.

1.04 PROJECT CONDITIONS

A. Protect adjacent work to remain, and items to be turned over to owner, from damage.

B. Existing Conditions:

1. If lead, asbestos or other hazardous materials are found or suspected, immediately stop work in the suspected area and advise the Owner and Architect. Do not recommence work in the area until advised by the Owner that the area has been cleared for work.

C. Owner will occupy adjacent areas during the course of the Work. Work under this Section shall not affect Owner's operation of adjacent areas.

1.05 SEQUENCING

A. Submit schedule indicating proposed sequence of operations for selective demolition work to Owner for review prior to start of work. Include coordination for shutoff, capping, and continuation of utility services, and details for dust and noise control.

1. Provide detailed sequence of demolition and removal work to ensure uninterrupted progress of Owner's operations.

024119 - 2

2. Coordinate the scheduling of work of Section with the work of other sections.

PART 2 NOT USED

PART 3 EXECUTION

3.01 EXAMINATION

A. Inspect and verify the existing conditions and become familiar with the extent of the Work.

B. Examine the site to determine proper access within the limitations of the Contract. Conduct operations so as not to interfere with adjacent roads, driveways, walks, buildings, corridors, means of access and egress, and work areas.

3.02 PREPARATION

A. Interfaces With Other Work: Coordinate extent of selective demolition work with limits of existing work to remain, and with demolition and modification requirements shown on the Drawings.

B. Protection:

1. Protect existing materials, appurtenances and equipment which are not to be demolished.

Existing materials, appurtenances and equipment, building exterior and interior, and landscaping altered or damaged during demolition work shall be repaired or replaced by the Subcontractor to match existing undisturbed conditions at no additional cost to the Owner.

2. Prevent movement of structure; provide bracing and shoring as required.

3. Provide proper and permanent support to adjacent structure for all piping, conduits and cables to remain.

4. Provide and maintain temporary weather protection during interval between demolition and removal of existing construction on exterior surfaces and installation of new construction to ensure that no water leakage or damage, or wind damage occurs to structure or interior areas of existing building.

5. Provide and maintain temporary barriers and security devices at doorways.

6. Use periodic light water mist, temporary enclosures, and other suitable methods to limit dust and dirt. Comply with applicable environmental protection regulations.

7. Provide and maintain temporary partitions to prevent spread of dust, odors and noise to permit continued Owner occupancy.

8. Maintain path of travel for debris removal dust free and clean at all times.

9. Maintain ventilation system dust free at all times.

10. Cover and protect windows and walls that are adjacent to areas to be demolished.

11. Protect smoke alarms and fire sprinklers from dust intrusion.

12. Existing elevator may not be used for debris removal

13. Maintain parking areas, driveways, exterior walkways, exit paths, and landscaping in a clean, undisturbed condition. Any debris caused by selective demolition work shall be removed each day.

C. Field verify the exact location of existing concealed utilities. Use caution if working in or about concealed or exposed utilities.

1. Disconnect, remove, and cap designated utility lines within demolition areas. Mark locations of disconnected utilities. Identify utilities and indicate capping locations on Project Record Documents.

3.03 EXECUTION

A. Minimize interference with adjacent occupied building areas, materials and equipment.

B. Remove items in an orderly and careful manner.

1. Remove only as much material as is required for new construction work to be conveniently performed.

2. Cut surfaces so as to minimize the amount of new surfaces required to match existing.

Make cuts plumb, true, level and straight, or as otherwise required to provide proper

024119 - 3 surfaces to receive new work and repairs.

3. Cut asphalt and concrete by power saw in neat, sharp straight lines. Repair broken edges or as directed by the Owner.

C. Remove miscellaneous abandoned appurtenances that will be exposed to view, unless indicated otherwise.

D. Investigate and measure the nature and extent of unanticipated items that conflict with intended function or design. Submit written report with accurate detailed information to the Owner and Architect. While awaiting instructions from the Owner, rearrange selective demolition schedule as necessary to continue overall job progress without delay.

E. Eliminate dust. Install dust barriers as required to keep dust out of corridors and adjacent areas. Use walkoff mats designed to remove dust at the corridor side of doors to rooms where demolition work is being done.

1. Activities which generate silica dust, such as concrete saw cutting, jackhammering, chipping, or abrasive blasting, shall incorporate engineering controls to eliminate visible emissions.

2. Do not use silica sand or other substances containing more than 1 per cent crystalline silica as abrasive blasting material

3. Use concrete and masonry saws that provide water to the blade.

4. Prevent human exposure to dust using methods such as removing dust with water, high efficiency particulate air (HEPA) filters, and wet sweeping. Do not use compressed air or dry sweeping.

F. Stop work and notify the Owner immediately if structure or other items to remain appear to be endangered. Do not resume work until directed by the Owner.

G. Do not disrupt service to existing fire sprinkler lines. If disruption becomes necessary, coordinate with the Owner..

H. Remove, store and protect materials to be re-installed or retained so as to prevent damage.

I. Remove and promptly dispose of vermin infested materials.

3.04 DISPOSAL AND CLEANUP

A. Material removed under this Contract which is not to be salvaged or reused in the Project shall become the property of the Contractor and shall be promptly removed from the job site. Do not store or permit debris to accumulate at the site.

B. Unless indicated otherwise, remove demolished material from site in a timely manner. Dispose of materials legally off site. Do not burn or bury materials on site.

C. Upon completion, clean the entire area of demolition residue satisfactory for the continuation of the Work. Remove temporary work.

3.05 SCHEDULES

A. Remove the following materials from the site and dispose of legally.

1. Demolition materials.

3.06 LANDSCAPE PROTECTION

A. General

1. Protect trees, including branches, root system, and trunks during all construction activities.

2. Protection Zone shall be no less than 5’ beyond dripline of trees and shrubs.

B. References:

1. ANSI Z133.1 Safety Requirements for Pruning, Trimming, Repairing, Maintaining and Removing Trees, and For Cutting Brush.

2. Council of Tree and Landscape Appraisers: Guide for Plant Appraisals, 9th edition (April 2000).

024119 - 4

3. International Society of Arboriculture (ISA): Tree and Shrub Transplanting Manual.

4. National Arborist Association (NAA) Book of Standards, current edition.

C. Submittals: Submit construction schedule which indicates timeframe for work near existing plant material. Provide transplanting and tree removal schedule.

PROJECT 9422.00 MAINTENANCE OF MASONRY 040100-1

SECTION 040100

MAINTENANCE OF MASONRY

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Water cleaning of brick, concrete masonry and natural stone surfaces.

B. Repointing mortar joints.

C. Repair of damaged masonry.

1.02 RELATED REQUIREMENTS

A. Section 040511 - Masonry Mortaring and Grouting.

B. Section 042613 - Masonry Veneer.

C. Section 044200 - Exterior Stone Cladding.

1.03 REFERENCE STANDARDS

A. TMS 402/602 - Building Code Requirements and Specification for Masonry Structures 2022.

1.04 ADMINISTRATIVE REQUIREMENTS

A. Preinstallation Meeting: Convene one week prior to commencing work of this section.

1. Require attendance of parties directly affecting work of this section.

2. Review conditions of installation, installation procedures, and coordination with related work.

1.05 SUBMITTALS

A. See Section 013000 - Administrative Requirements, for submittal procedures.

B. Product Data: Provide data on cleaning compounds.

C. Manufacturer's Instructions: For cleaning materials, indicate special procedures, conditions requiring special attention.

1.06 DELIVERY, STORAGE, AND HANDLING

A. Deliver masonry neatly stacked and tied on pallets. Store clear of ground with adequate waterproof covering.

B. Store materials in covered, well-ventilated area protected from exposure to detrimental conditions, including airborne contaminants, dirt, dust, sunlight, temperatures lower than 40 degrees F (4 degrees C) or greater than 100 degrees F (38 degrees C), rainfall, sparks, or flame, and in accordance with the manufacturer's requirements. Store polymer resins and hardeners in separate area from construction materials that can absorb odors.

1.07 FIELD CONDITIONS - MASONRY WORK

A. Cold and Hot Weather Requirements: Comply with requirements of TMS 402/602 or applicable building code, whichever is more stringent.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Restoration and Cleaning Chemicals:

1. Diedrich Technologies, Inc; Green Clean 250: www.diedrichtechnologies.com/#sle.

2. HMK Stone Care System; R155: www.hmkstonecare.com/#sle.

3. PROSOCO; Enviro Klean 2010: www.prosoco.com/#sle.

4. Substitutions: Architect Pre-Approved Equal.

2.02 CLEANING MATERIALS

A. Cleaning Agent: Detergent type.

http://www.diedrichtechnologies.com/#sle http://www.hmkstonecare.com/#sle http://www.prosoco.com/#sle

PROJECT 9422.00 MAINTENANCE OF MASONRY 040100-2

2.03 MORTAR MATERIALS

A. Comply with requirements of Section 040511.

2.04 MASONRY MATERIALS

A. Brick: Section 042000.

B. Stone Veneer: Section 044200.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that surfaces to be cleaned are ready for work of this section.

3.02 PREPARATION

A. Protect surrounding elements from damage due to restoration procedures.

B. Carefully remove and store removable items located in areas to be restored, including fixtures, fittings, finish hardware, and accessories; reinstall upon completion.

C. Separate areas to be protected from restoration areas using means adequate to prevent damage.

D. Mask immediately adjacent surfaces with material that will withstand cleaning and restoration procedures.

3.03 REBUILDING

A. Cut out damaged and deteriorated masonry with care in a manner to prevent damage to any adjacent remaining materials.

B. Support structure as necessary in advance of cutting out units.

C. Cut away loose or unsound adjoining masonry as directed.

D. Mortar Mix: Colored and proportioned to match existing work.

E. Ensure that anchors are correctly located and built in.

F. Install built in masonry work to match and align with existing, with joints and coursing true and level, faces plumb and in line. Build in all openings, accessories and fittings.

3.04 REPOINTING

A. Perform repointing prior to cleaning masonry surfaces.

B. Cut out loose or disintegrated mortar in joints to minimum 1/2 inch (6 mm) depth or until sound mortar is reached.

C. Use power tools only after test cuts determine no damage to masonry units will result.

D. When cutting is complete, remove dust and loose material by brushing.

E. Premoisten joint and apply mortar. Pack tightly in maximum 1/4 inch (6 mm) layers. Form a smooth, compact concave joint to match existing.

3.05 CLEANING EXISTING MASONRY

A. Cleaning Detergent: Brush clean masonry surfaces at specified locations with cleaning agent in accordance with the manufacturer's instructions. Saturate masonry with clean water and flush loose mortar and dirt.

3.06 CLEANING NEW MASONRY

A. Verify mortar is fully set and cured.

B. Clean surfaces and remove large particles with wood scrapers, brass or nylon wire brushes.

C. Scrub walls with cleaning agent solution using stiff brush. Thoroughly rinse and wash off cleaning solution, dirt and mortar crumbs using clean, pressurized water.

PROJECT 9422.00 MAINTENANCE OF MASONRY 040100-3

3.07 CLEANING

A. Immediately remove stains, efflorescence, or other excess resulting from the work of this section.

B. Remove excess mortar, smears, and droppings as work proceeds and upon completion.

C. Clean surrounding surfaces.

LIMESTONE REPAIR AND

REPLACEMENT

040120.63 - 1

SECTION 040120.63

LIMESTONE REPAIR AND REPLACEMENT

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Repairing and composite patching of limestone masonry, including replacing units.

2. Crack repair

3. Consolidation Treatment

4. Guidance on embedding threaded rods in epoxy or polyester resin in holes drilled into brick masonry walls to provide anchors for attachment to hardware connected to the framing of the building.

B. Related Sections:

1. Section 040511 “Masonry Mortaring And Grouting” for additional information on repointing mortars.

1.3 DEFINITIONS

A. Low-Pressure Spray: 100 to 400 psi (690 to 2750 kPa); 4 to 6 gpm (0.25 to 0.4 L/s).

B. Rebuilding (Setting) Mortar: Mortar used to set and anchor masonry in a structure, distinct from pointing mortar installed after masonry is set in place.

C. Saturation Coefficient: Ratio of the weight of water absorbed during immersion in cold water to weight absorbed during immersion in boiling water; used as an indication of resistance of masonry units to freezing and thawing.

1.4 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1. Review methods and procedures related to stone masonry repair including, but not limited to, the following:

a. Verify masonry repair specialist's personnel, equipment, and facilities needed to make progress and avoid delays.

b. Materials, material application, sequencing, tolerances, and required clearances.

040120.63 - 2

c. Quality-control program.

d. Coordination with building occupants.

1.5 SEQUENCING AND SCHEDULING

A. Order sand and lime mortar for colored mortar immediately after approval of mockups. Take delivery of and store at Project site enough quantity to complete Project.

B. Work Sequence: Perform limestone masonry repair work in the following sequence, which includes work specified in this and other Sections:

1. Remove plant growth.

2. Inspect masonry for open mortar joints and point them before cleaning to prevent the intrusion of water and other cleaning materials into the wall.

3. Remove paint.

4. Clean masonry.

5. Rake out mortar from joints surrounding masonry to be replaced and from joints adjacent to masonry repairs along joints.

6. Repair masonry, including replacing existing masonry with new masonry materials.

7. Rake out mortar from joints to be repointed.

8. Point mortar.

9. After repairs and repointing have been completed and cured, perform a final cleaning to remove residues from this work.

1.6 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes.

2. Include recommendations for product application and use. Include test data substantiating that products comply with requirements.

B. Samples for Initial Selection: For the following:

1. Colored Mortar: Submit sets of mortar that will be left exposed in the form of sample mortar strips, 6 inches (150 mm) long by 1/4 inch (6 mm) wide, set in aluminum or plastic channels.

a. Have each set contain a close color range of at least three Samples of different mixes of colored sands and cements that produce a mortar matching existing, cleaned mortar when cured and dry.

b. Submit with precise measurements on ingredients, proportions, gradations, and source of colored sands from which each Sample was made.

2. Patching Compound: Submit sets of patching compound Samples in the form of plugs

(patches in drilled holes) in sample units of masonry representative of the range of masonry colors on the building.

a. Have each set contain a close color range of at least six Samples of different mixes of patching compound that matches the variations in existing masonry when cured and dry.

3. Include similar Samples of accessories involving color selection.

040120.63 - 3

C. Samples for Verification: For the following:

1. Each type of patching compound in the form of briquettes, at least 3 inches (75 mm) long by 1-1/2 inches (38 mm) wide. Document each Sample with manufacturer and stock number or other information necessary to order additional material.

2. Accessories: Each type of accessory and miscellaneous support.

1.7 INFORMATIONAL SUBMITTALS

A. Preconstruction Test Reports: For existing masonry units and mortar and replacement masonry units.

B. Quality-control program.

1.8 QUALITY ASSURANCE

A. Mockups: Prepare mockups of stone masonry repair to demonstrate aesthetic effects and to set quality standards for materials and execution and for fabrication and installation.

1. Masonry Repair: Prepare sample areas for each type of masonry repair work performed.

If not otherwise indicated, size each mockup not smaller than two adjacent whole units or approximately 16 inches in least dimension. Construct sample areas in locations in existing walls where directed by Architect unless otherwise indicated. Demonstrate quality of materials, workmanship, and blending with existing work. Include the following as a minimum:

a. Patching: Three small holes as directed for each type of surface damage indicated to be patched.

2. Approval of mockups does not constitute approval of deviations from the Contract Documents contained in mockups unless Architect specifically approves such deviations in writing.

3. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Deliver packaged materials to Project site in manufacturer's original and unopened containers, labeled with manufacturer's name and type of products.

B. Store cementitious materials on elevated platforms, under cover, and in a dry location. Do not use cementitious materials that have become damp.

C. Store hydrated lime in manufacturer's original and unopened containers. Discard lime if containers have been damaged or have been opened for more than two days.

D. Store sand where grading and other required characteristics can be maintained and contamination avoided.

040120.63 - 4

E. Handle masonry units to prevent overstressing, chipping, defacement, and other damage.

1.10 FIELD CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit stone masonry repair work to be performed according to product manufacturers' written instructions and specified requirements.

B. Temperature Limits, General: Repair masonry units only when air temperature is between 40 and 90 deg F (4 and 32 deg C) and is predicted to remain so for at least seven days after completion of the Work unless otherwise indicated.

C. Cold-Weather Requirements: Comply with the following procedures for masonry repair unless otherwise indicated:

1. When air temperature is below 40 deg F (4 deg C), heat mortar ingredients, masonry repair materials, and existing masonry walls to produce temperatures between 40 and 120 deg F (4 and 49 deg C).

2. When mean daily air temperature is below 40 deg F (4 deg C), provide enclosure and heat to maintain temperatures above 32 deg F (0 deg C) within the enclosure for seven days after repair.

D. Hot-Weather Requirements: Protect masonry repairs when temperature and humidity conditions produce excessive evaporation of water from mortar and repair materials. Provide artificial shade and wind breaks, and use cooled materials as required to minimize evaporation. Do not apply mortar to substrates with temperatures of 90 deg F (32 deg C) and above unless otherwise indicated.

E. For manufactured repair materials, perform work within the environmental limits set by each manufacturer.

PART 2 - PRODUCTS

2.1 MATERIALS, GENERAL

A. Source Limitations: Obtain each type of material for repairing limestone (stone, cement, sand, etc.) from single source with resources to provide materials of consistent quality in appearance and physical properties.

1. MANUFACTURERS

a. Abatron, Inc.

b. Prosoco, Inc.

c. Sika Corporation

d. Architect Pre-Approved Equal

2.2 MASONRY MATERIALS

A. Limestone: As required to complete masonry repair or replacement work.

1. Limestone - Matching Existing to extent practical.

040120.63 - 5

2.3 MORTAR MATERIALS

A. Hydrated Lime: ASTM C 207, Type S.

B. Cement: Portland cement ASTM C 150, Type II, white.

C. Mortar Sand: ASTM C 144.

1. Exposed Mortar: Match existing sand sample, provided by owner.

2. Colored Mortar: Natural sand or ground marble, granite, or other sound stone of color necessary to produce required mortar color.

D. Mortar Pigments: ASTM C 979/C 979M, compounded for use in mortar mixes, and having a record of satisfactory performance in masonry mortars.

E. Water: Potable.

2.4 Masonry Restoration Consolidation Treatment

A. Manufacturer: PROSOCO, Inc. or Architect Pre-Approved Equal

B. Basis of Design: Conservare® OH100 is a ready-to-use ethyl silicate consolidation treatment that stabilizes masonry by replacing the natural binding materials lost due to weathering with silicone dioxide. When properly applied, Conservare® OH100 penetrates deeply, does not form a dense surface crust, and retains the substrate’s natural vapor permeability.

PART 3 - Additives:

A. ACRYL-60 (Thoro System Products), or approved equal: Use only latex admixtures that are labeled nonreemulsifiable like ACRYL-60; Do not use bonding agents that may break down in the presence of moisture.

3.2 MANUFACTURED REPAIR MATERIALS

A. Resin: The resin shall be a two-component, structural epoxy or polyester resin adhesive. The components shall be pre-measured in separate cartridges.

B. Threaded Rods: Threaded rods shall be sized according to need and loading requirements.

C. Screen Tube: Screen tubes shall be 7/8 inch diameter, approximately 28 wire per inch square mesh screen.

D. Mixing Nozzle: The resin components may be automatically mixed by a nozzle that is secured to the component cartridge.

E. Patching Compound: Factory-mixed cementitious product that is custom manufactured for patching limestone masonry.

040120.63 - 6

1. Use formulation that is vapor and water permeable (equal to or more than the masonry unit), exhibits low shrinkage, has lower modulus of elasticity than masonry units being repaired, and develops high bond strength to all types of masonry.

2. Use formulation having working qualities and retardation control to permit forming and sculpturing where necessary.

3. Formulate patching compound in colors and textures to match each masonry unit being patched. Provide sufficient number of colors to enable matching of the color, texture, and variation of each unit.

3.3 ACCESSORY MATERIALS

A. Setting Buttons and Shims: Resilient plastic, nonstaining to masonry, sized to suit joint thicknesses and bed depths of masonry units, less the required depth of pointing materials unless removed before pointing.

B. Masking Tape: Nonstaining, nonabsorbent material; compatible with mortar, joint primers, sealants, and surfaces adjacent to joints; and that easily comes off entirely, including adhesive.

C. Other Products: Select materials and methods of use based on the following, subject to approval of a mockup:

1. Previous effectiveness in performing the work involved.

2. Minimal possibility of damaging exposed surfaces.

3. Consistency of each application.

4. Uniformity of the resulting overall appearance.

5. Do not use products or tools that could leave residue on surfaces.

3.4 MORTAR MIXES

A. Measurement and Mixing: Measure cementitious materials and sand in a dry condition by volume or equivalent weight. Do not measure by shovel; use known measure. Mix materials in a clean, mechanical batch mixer.

B. Colored Mortar: Produce mortar of color required by using specified ingredients. Do not alter specified proportions without Architect's approval.

1. Mortar Pigments: Where mortar pigments are indicated, do not add pigment exceeding 10 percent by weight of the cementitious or binder materials, except for carbon black which is limited to 2 percent, unless otherwise demonstrated by a satisfactory history of performance.

C. Do not use admixtures in mortar unless otherwise indicated.

D. Mixes: Mix mortar materials in the following proportions:

1. Rebuilding (Setting) Mortar by Volume: ASTM C 270, Proportion Specification, 0 part portland cement, 1 part lime, and 3 parts sand. (From existing sample)

2. Pigmented, Colored Mortar: Add mortar pigments to produce exposed, setting (rebuilding) mortar of colors required.

3. For repointing mortar mixes see Section 04120.64- “Limestone Repointing.”

4. Slurry Coat:

a. 1 part white Portland cement

b. 2 parts Type S lime

040120.63 - 7

c. 6 parts sand

d. Mix with water and ACRYL-60 in 3:1 ratio

5. Scratch Coat:

a. 1 part white Portland cement

b. 1 part Type S lime

c. 6 parts sand

d. Mix with water and ACRYL-60 in 5:1 ratio

6. Finish Coat:

a. 1 part white Portland cement

b. 1 part Type S lime

c. 2-3 parts sand

d. 3-4 parts crushed limestone

e. Dry pigments (maximum 10% by weight)

f. Mix with water and ACRYL-60 (or equivalent) in 5:1 ratio

PART 4 - EXECUTION

4.1 PROTECTION

A. Prevent mortar from staining face of surrounding masonry and other surfaces.

1. Cover sills, ledges, and other projecting items to protect them from mortar droppings.

2. Keep wall area wet below rebuilding and repair work to discourage mortar from adhering.

3. Immediately remove mortar splatters in contact with exposed masonry and other surfaces.

B. Remove downspouts and associated hardware adjacent to masonry and store during masonry repair. Reinstall when repairs are complete.

1. Provide temporary rain drainage during work to direct water away from building.

4.2 MASONRY REPAIR, GENERAL

A. Appearance Standard: Repaired surfaces are to have a uniform appearance as viewed from 20 feet (6 m) away by Architect.

4.3 MASONRY UNIT PATCHING

A. Patch the following masonry units unless another type of repair or replacement is indicated:

1. Units indicated to be patched.

2. Units with holes.

3. Units with chipped edges or corners. Patch chipped edges or corners measuring more than

3/4 inch (19 mm) in least dimension.

4. Units with small areas of deep deterioration. Patch deep deteriorations measuring more than 3/4 inch (19 mm) in least dimension and more than 1/4 inch (6 mm) deep.

5. Deterioration of limestone due to moisture is evident as spalling, erosion, cracking, flaking and deteriorated mortar joints.

B. Remove and replace existing patches where indicated.

040120.63 - 8

C. Patching:

1. Cut or chip out all loose stone with a hammer and cold chisel to a minimum thickness of

1/2"; Undercut the stone so the patch will lock firmly.

2. Drill holes approximately 1/2 inch deep by 1/4 inch in diameter at varying angles about 2 inches apart along the newly exposed surface.

3. Remove stone dust from the patch area with bristle brushes and lightly spray the area with water.

4. Apply a thin slurry coat of approximately 1 part white Portland cement, 2 parts lime and 6 parts sand and any additives as required. Final mix will depend on field testing of mix to get correct color and texture match.

5. Build the scratch coat layers up to within 3/16 inch of the surface; Each layer should be no less than 3/4 inch and no more than 3 inches thick. Do not feather the edges.

6. Use a trowel to gouge many scratches into the surface of each layer in order to provide keying; Allow 2-4 hours for each coat to cure, but apply each layer while the previous layer is still damp.

7. Use wood screeds set in adjacent mortar joints to prevent repairs from extending continuously between separate blocks of stone and remove when the mortar is partly set;

Repoint the joint after the patch has cured.

8. Trowel on a final coat of brownstone stucco.

9. Work a straight edge back and forth across the width of the patch to strike it off flush.

10. Execute resurfacing carefully. Finish the surface repair by one of the following:

a. Acid etching: After the surface has cured 48 hours, brush on Technical Grade hydrochloric acid, diluted 1:5 with water; Rinse the surface thoroughly with clean, clear water.

b. Rubbing stones: Coarse or fine grade (grits #60, 80, 100, 120); Use dry or with water to hone the surface of well cured repairs.

c. Stipple with a damp sponge or dry-towel with a wooden float.

d. Score partially cured repair with stone tools to match original tool marks and patterns.

4.4 MASONRY CONSOLIDATION

A. Apply consolidant in repeated applications referred to as “cycles.” A cycle consists of three successive saturating applications at 5-15 minute intervals. Typical treatments involve two or three cycles (6-9 separate applications).

B. Allow 20 to 60 minutes between cycles. Laboratory testing will determine the optimum delay between applications and between cycles.

C. Apply consolidant until excess material remains visible on the surface for 60 minutes following the last application.

D. Immediately flush excess surface materials using industrial grade MEK (methyl ethyl ketone) or mineral spirits. If a second treatment is necessary, allow two to three weeks curing time following first treatment.

E. Cleanup tools and equipment immediately with mineral spirits, denatured alcohol or an equivalent cleaning solvent. Remove overspray and spills as soon as possible.

040120.63 - 9

4.5 FINAL CLEANING

A. After mortar has fully hardened, thoroughly clean exposed masonry surfaces of excess mortar and foreign matter; use wood scrapers, stiff-nylon or -fiber brushes, and clean water applied by low-pressure spray.

1. Do not use metal scrapers or brushes.

2. Do not use acidic or alkaline cleaners.

B. Clean adjacent nonmasonry surfaces. Use detergent and soft brushes or cloths.

C. Clean mortar and debris from roof; remove debris from gutters and downspouts. Rinse off roof and flush gutters and downspouts.

D. Remove masking materials, leaving no residues that could trap dirt.

4.6 FIELD QUALITY CONTROL

A. Architect's Project Representatives: Architect will assign Project representatives to help carry out Architect's responsibilities at the site, including observing progress and quality of portion of the Work completed. Allow Architect's Project representatives use of lift devices and scaffolding, as needed, to observe progress and quality of portion of the Work completed.

B. Notify Architect's Project representatives in advance of times when lift devices and scaffolding will be relocated. Do not relocate lift devices and scaffolding until Architect's Project representatives have had reasonable opportunity to make inspections and observations of work areas at lift device or scaffold location.

4.7 MASONRY WASTE DISPOSAL

A. Salvageable Materials: Unless otherwise indicated, excess masonry materials are Contractor's property.

B. Masonry Waste: Remove masonry waste and legally dispose of off Owner's property.

END OF SECTION 040120.63

MASONRY MORTARING AND

GROUTING

040511 - 4

SECTION 040511

MASONRY MORTARING AND GROUTING

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Mortar for masonry.

1.02 REFERENCE STANDARDS

A. ASTM C5 - Standard Specification for Quicklime for Structural Purposes 2018.

B. ASTM C91/C91M - Standard Specification for Masonry Cement 2023.

C. ASTM C144 - Standard Specification for Aggregate for Masonry Mortar 2018.

D. ASTM C207 - Standard Specification for Hydrated Lime for Masonry Purposes 2018.

E. ASTM C270 - Standard Specification for Mortar for Unit Masonry 2019a, with Editorial Revision.

F. ASTM C979/C979M - Standard Specification for Pigments for Integrally Colored Concrete 2016.

G. ASTM C1714/C1714M - Standard Specification for Preblended Dry Mortar Mix for Unit Masonry 2019a.

H. TMS 402/602 - Building Code Requirements and Specification for Masonry Structures 2022.

1.03 SUBMITTALS

A. See Section 013000 - Administrative Requirements, for submittal procedures.

B. Product Data: Include design mix and indicate whether the Proportion or Property specification of ASTM C270 is to be used. Also include required environmental conditions and admixture limitations.

C. Samples: Submit two samples of mortar, illustrating mortar color and color range.

1.04 QUALITY ASSURANCE

A. Comply with provisions of TMS 402/602, except where exceeded by requirements of Contract Documents.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Maintain packaged materials clean, dry, and protected against dampness, freezing, and foreign matter.

1.06 FIELD CONDITIONS

A. Cold and Hot Weather Requirements: Comply with requirements of TMS 402/602 or applicable building code, whichever is more stringent.

PART 2 PRODUCTS

2.01 MORTAR AND GROUT APPLICATIONS

A. At Contractor's option, mortar and grout may be field-mixed from packaged dry materials, made from factory premixed dry materials with addition of water only, or ready-mixed.

B. Mortar Color: Match Existing (Contractor is responsible for providing a color match mortar as part of base bid package)

C. Mortar Mix Designs: ASTM C270, Property Specification.

A. Exterior Stone Veneer: Type O.

2.02 MATERIALS

A. Portland Cement: ASTM C150/C150M.

• Type: Type I - Normal; ASTM C150/C150M.

• Color: Standard gray.

B. Masonry Cement: ASTM C91/C91M.

• Type: Type N; ASTM C91/C91M.

MASONRY MORTARING AND

GROUTING

040511 - 5

C. Hydrated Lime: ASTM C207, Type S.

D. Quicklime: ASTM C5, non-hydraulic type.

E. Mortar Aggregate: ASTM C144.

F. Grout Aggregate: ASTM C404.

G. Water: Clean and potable.

H. Bonding Agent: Latex type.

2.03 MORTAR MIXING

A. Thoroughly mix mortar ingredients using mechanical batch mixer, in accordance with ASTM C270 and in quantities needed for immediate use.

B. Maintain sand uniformly damp immediately before the mixing process.

C. Do not use anti-freeze compounds to lower the freezing point of mortar.

D. If water is lost by evaporation, re-temper only within two hours of mixing.

2.04 GROUT MIXING

A. Mix grout in accordance with ASTM C94/C94M.

B. Thoroughly mix grout ingredients in quantities needed for immediate use in accordance with ASTM C476 for fine and coarse grout.

PART 3 EXECUTION

3.01 INSTALLATION

A. Install mortar to requirements of section(s) in which masonry is specified.

3.02 SCHEDULES

A. Exterior Stone Veneer Wall: Type O Pointing mortar.

PROJECT 9422.00 WATER REPELLENTS 071900 - 1

SECTION 071900

WATER REPELLENTS

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Water repellents applied to exterior, masonry and stone surfaces.

1.02 REFERENCE STANDARDS

A. ASTM C140/C140M - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units 2022c.

1.03 SUBMITTALS

A. See Section 013000 - Administrative Requirements for submittal procedures.

B. Product Data: Provide product description, details of tests performed, limitations, and chemical composition.

C. Manufacturer's Installation Instructions: Indicate special procedures and conditions requiring special attention; cautionary procedures required during application.

1.04 MOCK-UPS

A. Prepare representative surface 36 by 36 inches (0.91 by 0.91 m) in size using specified materials and preparation and application methods on surfaces identical to those to be coated;

approved mock-up constitutes standard for workmanship.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Silane, Siloxane, Silane-Siloxane Blend, and Siliconate Water Repellents:

1. Evonik Corporation; Protectosil Aqua-Trete SG: www.evonik.com/#sle.

2. Pecora Corporation; KlereSeal 9100-S VOC Compliant Silane Penetrating Clear Sealer:

www.pecora.com/#sle.

3. PROSOCO, Inc; Natural Stone Treatment: www.prosoco.com/#sle.

4. Substitutions: Architect Pre-Approved Equal.

2.02 MATERIALS

A. Water Repellent: Non-glossy, colorless, penetrating, water-vapor-permeable, non-yellowing sealer, that dries invisibly leaving appearance of substrate unchanged.

1. Applications: Vertical surfaces and non-traffic horizontal surfaces.

2. Moisture Absorption When Applied to Masonry: Five percent, maximum, when tested in accordance with ASTM C140/C140M using masonry sample completely coated with water repellent.

3. Maintains dry appearance when wetted.

4. Silane, siloxane, silane-siloxane blend, or siliconate that reacts chemically with natural stone.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify existing conditions before starting work.

B. Verify joint sealants are installed and cured.

C. Verify surfaces to be coated are dry, clean, and free of efflorescence, oil, or other matter detrimental to application of water repellent.

3.02 PREPARATION

A. Protection of Adjacent Work:

1. Protect adjacent landscaping, property, and vehicles from drips and overspray.

2. Protect adjacent surfaces not intended to receive water repellent.

http://www.evonik.com/#sle http://www.pecora.com/#sle http://www.prosoco.com/#sle

PROJECT 9422.00 JOINT SEALANTS 071900 - 1

B. Prepare surfaces to be coated as recommended by water repellent manufacturer for best results.

C. Allow surfaces to dry completely to degree recommended by water repellent manufacturer before starting coating work.

3.03 APPLICATION

A. Apply water repellent in accordance with manufacturer's instructions, using procedures and application methods recommended as producing the best results.

B. Remove water repellent from unintended surfaces immediately by a method instructed by water repellent manufacturer.

PROJECT 9422.00 JOINT SEALANTS 071900 - 2

SECTION 079200

JOINT SEALANTS

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Nonsag gunnable joint sealants.

B. Self-leveling pourable joint sealants.

C. Joint backings and accessories.

1.02 REFERENCE STANDARDS

A. ASTM C661 - Standard Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a Durometer 2015 (Reapproved 2022).

B. ASTM C920 - Standard Specification for Elastomeric Joint Sealants 2018.

C. ASTM C1193 - Standard Guide for Use of Joint Sealants 2016.

D. ASTM C1330 - Standard Specification for Cylindrical Sealant Backing for Use with Cold Liquid- Applied Sealants 2018.

1.03 SUBMITTALS

A. See Section 013000 - Administrative Requirements for submittal procedures.

B. Product Data: Submit manufacturer's technical datasheets for each product to be used; include the following:

1. Physical characteristics, including movement capability, VOC content, hardness, cure time, and color availability.

2. List of backing materials approved for use with the specific product.

3. Substrates that product is known to satisfactorily adhere to and with which it is compatible.

4. Substrates the product should not be used on.

C. Color Cards for Selection: Where sealant color is not specified, submit manufacturer's color cards showing standard colors available for selection.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Nonsag Sealants:

1. Dow; www.dow.com/#sle.

2. Master Builders Solutions; www.master-builders-solutions.com/en-us/#sle.

3. Pecora Corporation; www.pecora.com/#sle.

4. Sika Corporation; www.usa.sika.com/#sle.

5. Tremco Commercial Sealants & Waterproofing; www.tremcosealants.com/#sle.

6. Substitutions: Architect Pre-Approved Equal.

2.02 JOINT SEALANT APPLICATIONS

A. Scope:

1. Exterior Joints: Seal open joints, whether or not the joint is indicated on drawings, unless specifically indicated not to be sealed. Exterior joints to be sealed include, but are not limited to:

a. Wall expansion and control joints.

b. Joints between door, window, and other frames and adjacent construction.

c. Joints between different exposed materials.

d. Other joints indicated below.

2. Do not seal the following types of joints:

a. Joints indicated to be treated with manufactured expansion joint cover, or some other type of sealing device.

b. Joints where sealant is specified to be provided by manufacturer of product to be sealed.

http://www.dow.com/#sle http://www.master-builders-solutions.com/en-us/#sle http://www.pecora.com/#sle http://www.usa.sika.com/#sle http://www.tremcosealants.com/#sle

PROJECT 9422.00 JOINT SEALANTS 071900 - 2

c. Joints where installation of sealant is specified in another section.

d. Joints between suspended panel ceilings/grid and walls.

B. Type S - Exterior Joints: Use nonsag nonstaining silicone sealant, unless otherwise indicated.

2.03 JOINT SEALANTS - GENERAL

2.04 NONSAG JOINT SEALANTS

A. Nonsag Traffic-Grade Polyurethane Sealant: ASTM C920, Grade NS, Uses M and A; single or multi-component; explicitly approved by manufacturer for continuous water immersion and traffic without the necessity to recess sealant below traffic surface.

1. Movement Capability: Plus and minus 25 percent, minimum.

2. Hardness Range: 20 to 30, Shore A, when tested in accordance with ASTM C661.

3. Color: Match adjacent finished surfaces.

2.05 SELF-LEVELING JOINT SEALANTS

A. Self-Leveling Polyurethane Sealant for Continuous Water Immersion: Polyurethane; ASTM C920, Grade P, Uses M and A; single component; explicitly approved by manufacturer for traffic exposure and continuous water immersion.

1. Movement Capability: Plus and minus 25 percent, minimum.

B. Self-Leveling Polysulfide Sealant: ASTM C920, Grade P, Uses M and A; multicomponent;

explicitly approved by manufacturer for traffic exposure and continuous water immersion.

1. Movement Capability: Plus and minus 25 percent.

2.06 ACCESSORIES

A. Backer Rod: Cylindrical cellular foam rod with surface that sealant will not adhere to, compatible with specific sealant used, and recommended by backing and sealant manufacturers for specific application.

1. Type for Joints Subject to Pedestrian or Vehicular Traffic: ASTM C1330; Type B - Bi- Cellular Polyethylene.

2. Closed Cell and Bi-Cellular: 25 to 33 percent larger in diameter than joint width.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that joints are ready to receive work.

B. Verify that backing materials are compatible with sealants.

C. Verify that backer rods are of the correct size.

3.02 PREPARATION

A. Remove loose materials and foreign matter that could impair adhesion of sealant.

B. Clean joints, and prime as necessary, in accordance with manufacturer's instructions.

C. Perform preparation in accordance with manufacturer's instructions and ASTM C1193.

D. Mask elements and surfaces adjacent to joints from damage and disfigurement due to sealant work; be aware that sealant drips and smears may not be completely removable.

3.03 INSTALLATION

A. Install this work in accordance with sealant manufacturer's requirements for preparation of surfaces and material installation instructions.

B. Provide joint sealant installations complying with ASTM C1193.

C. Install bond breaker backing tape where backer rod cannot be used.

D. Install sealant free of air pockets, foreign embedded matter, ridges, and sags, and without getting sealant on adjacent surfaces.

E. Do not install sealant when ambient temperature is outside manufacturer's recommended temperature range, or will be outside that range during the entire curing period, unless manufacturer's approval is obtained and instructions are followed.

PROJECT 9422.00 JOINT SEALANTS 071900 - 3

F. Nonsag Sealants: Tool surface concave, unless otherwise indicated; remove masking tape immediately after tooling sealant surface.