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Rev. 1/24 1/19/2026 Rocky Creek WRF Admin Replace Roof and Wall Repair
SECTION 00020
INVITATION TO BID
THE MACON WATER AUTHORITY
MACON, GEORGIA
Sealed Bids for furnishing all materials, labor, tools, equipment and appurtenances necessary for the installation of ROCKY CREEK WRF ADMIN REPLACE ROOF AND WALL REPAIR (the “Project”) will be received by the Macon Water Authority (the “Owner”), at the Macon Water Authority, 537 Hemlock St., Engineering Training Room, Macon, Georgia 31201 until 1:00 P. M., local time, April 16 , 2026, and then at said office publicly opened and read aloud. All bidders must attend a mandatory pre-bid meeting at 5007 Old Gaul City Rd., Macon Ga., 31206, at 10:30 A.M. on March 31, 2026. All bid questions must be submitted to the Owner by 10:00 A.M. on April 6thth, 2026. The Bidder shall attend the pre-bid meeting in its entirety.
The Project consists of roof removal and replacement on the Administration Building and the Post Aeration Building at Rocky Creek Water Reclamation Facility. Both buildings’ existing roofs consist of a single ply recover over an aggregate surfaced BUR. The existing roofs will be removed down to the existing concrete decks. A new fully adhered 60 mil PVC roof membrane is to be installed over a ¼” tapered insulation system, which is to be adhered over a vapor retarder which is to be installed over the concrete deck. All new wood nailers and sheet metal are to be installed. The store front windows at the Administration Building are to be removed and replaced. Wall repair is to be performed at the Administration Building. This includes but is not limited to brick replacement, tuck pointing of bad mortar joints, removal and replacement of all exterior sealants, cleaning the brick cladding and installing a breathable brick sealer.
The Project will be awarded in one Contract. Fifty-one percent (51%) of the Work under the Contract Documents must be self-performed by the General Contractor. The Project will be awarded by base bid on a lump sum basis for the performance and completion of all Work required by the Contract Documents.
The Contract Documents include, but may not be limited to, the Instructions to Bidders, the Contract Agreement, the General Conditions, the Drawings, the Specifications (Divisions 01 through 46, inclusive, where applicable), and the forms of Bid Bond, Performance Bond, and Payment Bond. These and any other Contract Documents may be examined at the following location:
Engineering Department Macon Water Authority
537 Hemlock Street Macon, GA 31201
Copies of Contract Documents may be obtained from the office of the Engineer, Michael E. Clark and Associates, upon a non-refundable payment of $150.00 for each set. A street address must be provided to ensure prompt delivery. No partial sets of bidding documents shall be issued. Bidders must purchase the Contract Documents in order to be eligible to submit a bid. Bid documents on the MWA website are for informational purposes only.
00020-2 Invitation to Bid
Rev. 12/24 1/19/2026 Rocky Creek WRF Admin Replace Roof and Wall Repair
Each Bid must be accompanied by a Bid Bond in the amount of 10% of the Bid, prepared on the form of Bid Bond that is part of the Contract Documents, duly executed by the Bidder as principal and having as surety thereon a surety company licensed to do business in the State of Georgia and listed in the latest issue of U.S. Treasury Circular 570.
Bidders must comply with the Disadvantaged Business Enterprise Participation Requirements specified in the Instructions to Bidders.
The successful Bidder for this Project shall be required to furnish a Performance Bond and Payment Bond, satisfactory to the Owner, each in the amount of 100 % of the Contract Price.
Employment of Local Businesses and Contractors: It is the desire of the Owner that local businesses--including disadvantaged, minority, and women enterprise subcontractors-- be given the opportunity to participate on the various parts of the Work.
The Owner’s encouragement of participation of disadvantaged, minority, and women enterprises and of locally owned businesses and contractors is not intended to restrict or limit competitive bidding or to increase the cost of the Work. The Owner supports a healthy, free market system that seeks to include responsible local businesses and provide ample opportunities for local business growth and development.
In an effort to assist minority-owned businesses, Georgia law permits an income tax adjustment on the state tax return of any company that subcontracts with a certified minority-owned firm to furnish goods, property or services to the State of Georgia pursuant to O.C.G.A. §48-7-38. Suppliers should consult with their tax advisors to find out how to take advantage of these tax credits.
The Owner reserves the right to reject any or all Bids. The Owner reserves the right to waive informalities and technicalities.
The Macon Water Authority Michel Wanna
Interim Executive Director & President
END OF SECTION
| MWA Rocky Creek WRF Admin Roof and Walls- Front Ends |
| 00001 Cover Page.12.24(4605269.1) - MMM review |
| 00015-Index.12.24(4605271.1) - MMM review |
| INDEX |
| 00020-Invitation to Bid.12.24(Use of Engineer Fi(4605273.1) - MMM review |
| SECTION 00020 |
| 00100-Instructions to Bidders.12.24(4605274.1) - MMM review (GGG 2026 changes) |
| SECTION 00100 |
| 00210-Federal Employment Affidavits.12.24(4605275.1) - MMM review |
| 00300-Bid.12.24(4605276.1) - MMM review09.10.2025Edit (GGG 2026 changes) |
| SECTION 00300 |
| BID |
| 00410-Bid Bond.12.24(4605277.1) - MMM review |
| SECTION 00410 |
| 00420.1-Statement Of Bidder's Qualifications.12.24(4605278.1) - MMM review |
| 00420.2-Statement Of Roofing Subcontractor's Qualifications.12.24(4605278.1) - MMM review |
| SECTION 00420.2 |
| 00421-Statement of Equipment.12.24(4605279.1) - MMM review |
| 00422-Corporate Certificate.12.24(4605280.1) - MMM review |
| 00423-Disadvantaged Firm Use.12.24(4605281.1) - MMM review |
| 00425-Contractor License Certification.12.24(4605256.1) - MMM review |
| 00430-Contractor Certification of Authority.12.24(4605257.1) - MMM review |
| 00480-NonColl Aff.12.24(4605258.1) - MMM review |
| 00500-Contract Agreement.12.24(4605259.1) - MMM review (GGG 2026 changes) |
| 200 SECTION 00500 |
| 00550-PreAward Oath.12.24(4605260.1) - MMM review |
| 00600-Performance Bond.12.24(4605261.1) - MMM review |
| 00601 Blank Page_Surety Location.12.24(4605262.1) - MMM review |
| 00610-Payment Bond.12.24(4605263.1) - MMM review |
| 00611 Blank Page_Surety Location.12.24(4605264.1) - MMM review |
| 00700-General Conditions. Rev 12.24(4605265.1) - GGG Tariff revision (GGG 2026 changes) |
| SECTION 00700 |
| 00800-Supplementary Conditions.12.24(4605294.1) - MMM and EH edits |
| 00810-Pay Estimate Form.10.24 |
| Macon Water Authority |
| MWA Rocky Creek WRF Admin Roof and Walls- Tech Specs |
| 011000 FL - Summary |
| PART 1 - GENERAL |
| 1.1 RELATED DOCUMENTS |
| A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section. |
| 1.2 SUMMARY |
| A. Section Includes: |
| 1. Project information. |
| 2. Work covered by Contract Documents. |
| 3. Access to site. |
| 4. Work restrictions. |
| B. Related Requirements: |
| 1. Section 015000 "Temporary Facilities and Controls" for limitations and procedures governing temporary use of Owner's facilities. |
| 1.3 PROJECT INFORMATION |
| A. Project Identification: Rocky Creek WRF Administration Building Replace Roof and Wall Repair. |
| 1. Project Location: Rocky Creek Water Reclamation Facility, |
| 5007 Old Gaul City Rd, Macon Ga. 31206. |
| B. Owner: Macon Water Authority, 790 Second Street, Macon, Georgia 31201. |
| 1. Owner's Representative: Mr. Michel Wanna; Assistant Executive Director & VP, Field and Plant Operations. |
C. Architect: Michael E. Clark & Associates: 478-471-6661.
| 1.4 WORK COVERED BY CONTRACT DOCUMENTS |
| A. The Work of Project is defined by the Contract Documents and includes, but is not limited to, the following: |
| 1. Roof Areas A, C, and D: Remove existing roof systems and insulation down to the existing pre-cast concrete deck on three roof areas. Prepare concrete deck, install new vapor retarder, new fully adhered ¼" per foot tapered insulation system with ½" ... |
| 2. Roof Area B: Remove existing roof systems and insulation down to the existing metal deck. Base layer of insulation mechanically attached and following layers of insulation adhered along with a ¼" per foot tapered insulation system with ½" coverboar... |
| 3. Window Replacement Administration Building: Remove 14 windows and install new aluminum framed storefront windows with manufacturer’s premium sill pans. Doors and sidelights that are not replaced to receive new gaskets and perimeter sealant. |
| 4. Cladding Repair Administration Building: All brick cladding on the building is to be cleaned. All penetrations through cladding are to be sealed. All broken clay bricks are to be replaced with new matching bricks. All deteriorated mortar is to be... |
| B. Type of Contract: |
| 1. Project will be constructed under a single prime contract. |
| 1.5 ACCESS TO SITE |
| A. General: Contractor shall have partial use of Project site for construction operations during construction period. |
| B. Condition of Existing Building: Maintain portions of existing building affected by construction operations in a weathertight condition throughout construction period. Repair damage caused by construction operations. |
| C. Condition of Existing Grounds: Maintain portions of existing grounds, landscaping, and hardscaping affected by construction operations throughout construction period. Repair damage caused by construction operations. |
| 1.6 WORK RESTRICTIONS |
| A. Work Restrictions, General: Comply with restrictions on construction operations. |
| 1. Comply with limitations on use of public streets and other requirements of authorities having jurisdiction. |
| B. On-Site Work Hours: Limit work to between 7:30 a.m. to 5:00 p.m., Monday through Friday, unless otherwise indicated. |
| C. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Owner. |
| D. Noise, Vibration, Dust, and Odors: Coordinate operations that may result in high levels of noise and vibration, dust, odors, or other disruption to Owner occupancy with Owner. |
| 1. Notify Owner not less than two days in advance of proposed disruptive operations. |
| 2. Obtain Owner's written permission before proceeding with disruptive operations. |
| E. Smoking and Controlled Substance Restrictions: Use of tobacco products and other controlled substances within the existing building and on Project site is not permitted. |
| F. Employee Identification: Provide identification tags for Contractor personnel working on Project site. Require personnel to use identification tags at all times. |
| G. Employee Screening: Comply with Owner's requirements for drug and background screening of Contractor personnel working on Project site. |
| 1. Maintain list of approved screened personnel with Owner's representative. |
| PART 2 - PRODUCTS (Not Used) |
| PART 3 - EXECUTION (Not Used) |
| 012100 FL - Allowances |
| PART 1 - GENERAL |
| 1.1 RELATED DOCUMENTS |
| A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section. |
| 1.2 SUMMARY |
| A. Section includes administrative and procedural requirements governing allowances. |
| B. Types of allowances include the following: |
| 1. Contingency allowances. |
| C. Related Requirements: |
| 1. Section 012600 "Contract Modification Procedures" for procedures for submitting and handling Change Orders. |
| 1.3 DEFINITIONS |
| A. Allowance: A quantity of work or dollar amount included in the Contract, established in lieu of additional requirements, used to defer selection of actual materials and equipment to a later date when direction will be provided to Contractor. If nec... |
| 1.4 ACTION SUBMITTALS |
| A. Submit proposals for purchase of products or systems included in allowances in the form specified for Change Orders. |
| 1.5 INFORMATIONAL SUBMITTALS |
| A. Submit invoices or delivery slips to show actual quantities of materials delivered to the site for use in fulfillment of each allowance. |
| B. Submit time sheets and other documentation to show labor time and cost for installation of allowance items that include installation as part of the allowance. |
| C. Coordinate and process submittals for allowance items in same manner as for other portions of the Work. |
| 1.6 CONTINGENCY ALLOWANCES |
| A. Use the contingency allowance only as directed by Architect for Owner's purposes and only by Change Orders that indicate amounts to be charged to the allowance. |
| B. Change Orders authorizing use of funds from the contingency allowance will include Contractor's related costs and reasonable overhead and profit. |
| C. At Project closeout, credit unused amounts remaining in the contingency allowance to Owner by Change Order. |
| PART 2 - PRODUCTS (Not Used) |
| PART 3 - EXECUTION |
| 3.1 EXAMINATION |
| A. Examine products covered by an allowance promptly on delivery for damage or defects. Return damaged or defective products to manufacturer for replacement. |
| 3.2 PREPARATION |
| A. Coordinate materials and their installation for each allowance with related materials and installations to ensure that each allowance item is completely integrated and interfaced with related work. |
| 3.3 SCHEDULE OF ALLOWANCES |
| A. Allowance No. 1: Contingency Allowance: Include a contingency allowance of $15,000.00 for use according to Owner's/Engineers written instructions. |
| 013200 FL - Construction Progress Documentation |
| 013300 FL - Submittal Procedures |
| 014200 FL - References |
| 015000 FL - Temporary Facilities and Controls |
| 016000 FL - Product Requirements |
| PART 1 - GENERAL |
| 1.1 RELATED DOCUMENTS |
| A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section. |
| 1.2 SUMMARY |
| A. Section includes administrative and procedural requirements for selection of products for use in Project; product delivery, storage, and handling; manufacturers' standard warranties on products; special warranties; and comparable products. |
| B. Related Requirements: |
| 1. Section 014200 "References" for applicable industry standards for products specified. |
| 1.3 DEFINITIONS |
| A. Products: Items obtained for incorporating into the Work, whether purchased for Project or taken from previously purchased stock. The term "product" includes the terms "material," "equipment," "system," and terms of similar intent. |
| 1. Named Products: Items identified by manufacturer's product name, including make or model number or other designation shown or listed in manufacturer's published product literature that is current as of date of the Contract Documents. |
| 2. New Products: Items that have not previously been incorporated into another project or facility. Products salvaged or recycled from other projects are not considered new products. |
| 3. Comparable Product: Product that is demonstrated and approved by Architect through submittal process to have the indicated qualities related to type, function, dimension, in-service performance, physical properties, appearance, and other characteri... |
| B. Basis-of-Design Product Specification: A specification in which a single manufacturer's product is named and accompanied by the words "basis-of-design product," including make or model number or other designation. In addition to the basis-of-design... |
| C. Subject to Compliance with Requirements: Where the phrase "Subject to compliance with requirements" introduces a product selection procedure in an individual Specification Section, provide products qualified under the specified product procedure. I... |
| 1.4 ACTION SUBMITTALS |
| A. Comparable Product Request Submittal: Submit request for consideration of each comparable product. Identify basis-of-design product or fabrication or installation method to be replaced. Include Specification Section number and title and Drawing num... |
| 1. Include data to indicate compliance with the requirements specified in "Comparable Products" Article. |
| 2. Architect's Action: If necessary, Architect will request additional information or documentation for evaluation within seven days of receipt of a comparable product request. Architect will notify Contractor of approval or rejection of proposed comp... |
| a. Form of Architect's Approval of Submittal: As specified in Section 013300 "Submittal Procedures." |
| b. Use product specified if Architect does not issue a decision on use of a comparable product request within time allocated. |
B. Basis-of-Design Product Specification Submittal: Comply with requirements in Section 013300 "Submittal Procedures." Show compliance with requirements.
| 1.5 QUALITY ASSURANCE |
| A. Compatibility of Options: If Contractor is given option of selecting between two or more products for use on Project, select product compatible with products previously selected, even if previously selected products were also options. |
| 1. Each contractor is responsible for providing products and construction methods compatible with products and construction methods of other contractors. |
| 2. If a dispute arises between contractors over concurrently selectable but incompatible products, Architect will determine which products shall be used. |
B. Identification of Products: Except for required labels and operating data, do not attach or imprint manufacturer or product names or trademarks on exposed surfaces of products or equipment that will be exposed to view in occupied spaces or on the e...
| 1.6 PRODUCT DELIVERY, STORAGE, AND HANDLING |
| A. Deliver, store, and handle products using means and methods that will prevent damage, deterioration, and loss, including theft and vandalism. Comply with manufacturer's written instructions. |
| B. Delivery and Handling: |
| 1. Schedule delivery to minimize long-term storage at Project site and to prevent overcrowding of construction spaces. |
| 2. Coordinate delivery with installation time to ensure minimum holding time for items that are flammable, hazardous, easily damaged, or sensitive to deterioration, theft, and other losses. |
| 3. Deliver products to Project site in an undamaged condition in manufacturer's original sealed container or other packaging system, complete with labels and instructions for handling, storing, unpacking, protecting, and installing. |
| 4. Inspect products on delivery to determine compliance with the Contract Documents and to determine that products are undamaged and properly protected. |
| C. Storage: |
| 1. Store products to allow for inspection and measurement of quantity or counting of units. |
| 2. Store materials in a manner that will not endanger Project structure. |
| 3. Store products that are subject to damage by the elements, under cover in a weathertight enclosure above ground, with ventilation adequate to prevent condensation. |
| 4. Protect foam plastic from exposure to sunlight, except to extent necessary for period of installation and concealment. |
| 5. Comply with product manufacturer's written instructions for temperature, humidity, ventilation, and weather-protection requirements for storage. |
| 6. Protect stored products from damage and liquids from freezing. |
| 1.7 PRODUCT WARRANTIES |
| A. Warranties specified in other Sections shall be in addition to, and run concurrent with, other warranties required by the Contract Documents. Manufacturer's disclaimers and limitations on product warranties do not relieve Contractor of obligations ... |
| 1. Manufacturer's Warranty: Written warranty furnished by individual manufacturer for a particular product and specifically endorsed by manufacturer to Owner. |
| 2. Special Warranty: Written warranty required by the Contract Documents to provide specific rights for Owner. |
| B. Special Warranties: Prepare a written document that contains appropriate terms and identification, ready for execution. |
| 1. Manufacturer's Standard Form: Modified to include Project-specific information and properly executed. |
| 2. Specified Form: When specified forms are included with the Specifications, prepare a written document using indicated form properly executed. |
| 3. See other Sections for specific content requirements and particular requirements for submitting special warranties. |
C. Submittal Time: Comply with requirements in Section 017700 "Closeout Procedures."
| PART 2 - PRODUCTS |
| 2.1 PRODUCT SELECTION PROCEDURES |
| A. General Product Requirements: Provide products that comply with the Contract Documents, are undamaged and, unless otherwise indicated, are new at time of installation. |
| 1. Provide products complete with accessories, trim, finish, fasteners, and other items needed for a complete installation and indicated use and effect. |
| 2. Standard Products: If available, and unless custom products or nonstandard options are specified, provide standard products of types that have been produced and used successfully in similar situations on other projects. |
| 3. Owner reserves the right to limit selection to products with warranties meeting requirements of the Contract Documents. |
| 4. Where products are accompanied by the term "as selected," Architect will make selection. |
| 5. Descriptive, performance, and reference standard requirements in the Specifications establish salient characteristics of products. |
| 6. Or Equal: For products specified by name and accompanied by the term "or equal," or "or approved equal," or "or approved," comply with requirements in "Comparable Products" Article to obtain approval for use of an unnamed product. |
| a. Submit additional documentation required by A/E in order to establish equivalency of proposed products. Evaluation of "or equal" product status is by the Architect, whose determination is final. |
| B. Product Selection Procedures: |
| 1. Sole Manufacturer/Source: Where Specifications name a single manufacturer or source, provide a product by the named manufacturer or source that complies with requirements. Comparable products or substitutions for Contractor's convenience will not b... |
| a. Sole manufacturer/source may be indicated by the phrase: "Subject to compliance with requirements, provide products by the following: …" |
| 2. Limited List of Products: Where Specifications include a list of names of both manufacturers and products, provide one of the products listed that complies with requirements. Comparable products or substitutions for Contractor's convenience will no... |
| a. Limited list of products may be indicated by the phrase: "Subject to compliance with requirements, provide one of the following: …" |
| 3. Non-Limited List of Products: Where Specifications include a list of names of both available manufacturers and products, provide one of the products listed, or an unnamed product, which complies with requirements. |
| a. Non-limited list of products is indicated by the phrase: "Subject to compliance with requirements, available products that may be incorporated in the Work include, but are not limited to, the following: …" |
| 4. Limited List of Manufacturers: Where Specifications include a list of manufacturers' names, provide a product by one of the manufacturers listed that complies with requirements. Comparable products or substitutions for Contractor's convenience will... |
| a. Limited list of manufacturers is indicated by the phrase: "Subject to compliance with requirements, provide products by one of the following: …" |
| 5. Non-Limited List of Manufacturers: Where Specifications include a list of available manufacturers, provide a product by one of the manufacturers listed, or a product by an unnamed manufacturer, which complies with requirements. |
| a. Non-limited list of manufacturers is indicated by the phrase: "Subject to compliance with requirements, available manufacturers whose products may be incorporated in the Work include, but are not limited to, the following: …" |
| 6. Basis-of-Design Product: Where Specifications name a product, or refer to a product indicated on Drawings, and include a list of manufacturers, provide the specified or indicated product or a comparable product by one of the other named manufacture... |
| a. For approval of products by unnamed manufacturers, comply with requirements in Section 012500 "Substitution Procedures" for substitutions for convenience. |
| C. Visual Matching Specification: Where Specifications require "match Architect's sample," provide a product that complies with requirements and matches Architect's sample. Architect's decision will be final on whether a proposed product matches. |
| 1. If no product available within specified category matches and complies with other specified requirements, comply with requirements in Section 012500 "Substitution Procedures" for proposal of product. |
D. Visual Selection Specification: Where Specifications include the phrase "as selected by Architect from manufacturer's full range" or similar phrase, select a product that complies with requirements. Architect will select color, gloss, pattern, dens...
| 2.2 COMPARABLE PRODUCTS |
| A. Conditions for Consideration of Comparable Products: Architect will consider Contractor's request for comparable product when the following conditions are satisfied. If the following conditions are not satisfied, Architect may return requests witho... |
| 1. Evidence that proposed product does not require revisions to the Contract Documents, is consistent with the Contract Documents, will produce the indicated results, and is compatible with other portions of the Work. Detailed comparison of significan... |
| 2. Evidence that proposed product provides specified warranty. |
| 3. List of similar installations for completed projects with project names and addresses and names and addresses of architects and owners, if requested. |
| 4. Samples, if requested. |
B. Submittal Requirements: Approval by the Architect of Contractor's request for use of comparable product is not intended to satisfy other submittal requirements. Comply with specified submittal requirements.
PART 3 - EXECUTION (Not Used)
| 017300 FL - Execution |
| 017419 FL - Construction Waste Management and Disposal |
| 017700 FL - Closeout Procedures |
| PART 1 - GENERAL |
| 1.1 RELATED DOCUMENTS |
| A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section. |
| 1.2 SUMMARY |
| A. Section includes administrative and procedural requirements for contract closeout, including, but not limited to, the following: |
| 1. Substantial Completion procedures. |
| 2. Final completion procedures. |
| 3. Final cleaning. |
| 4. Repair of the Work. |
| B. Related Requirements: |
| 1. Section 017839 "Project Record Documents" for submitting Marked-Up, As-Built Drawings, Record Specifications, and Record Product Data. |
| 1.3 ACTION SUBMITTALS |
| A. Contractor's List of Incomplete Items: Initial submittal at Substantial Completion. |
| B. Certified List of Incomplete Items: Final submittal at final completion. |
| C. Special Warranties. |
| D. Record Drawings: Set of drawings redlined with any deviations for from the original contract drawings that may have been performed. |
| 1.4 SUBSTANTIAL COMPLETION PROCEDURES |
| A. Contractor's List of Incomplete Items: Prepare and submit a list of items to be completed and corrected (Contractor's punch list), indicating the value of each item on the list and reasons why the Work is incomplete. |
| B. Submittals Prior to Substantial Completion: Complete the following a minimum of 10 days prior to requesting inspection for determining date of Substantial Completion. List items below that are incomplete at time of request. |
| 1. Submit closeout submittals specified in other Division 01 Sections, including project record documents, operation and maintenance manuals, damage or settlement surveys, property surveys, and similar final record information. |
| 2. Submit closeout submittals specified in individual Sections, including specific warranties, workmanship bonds, maintenance service agreements, final certifications, and similar documents. |
| 3. Submit maintenance material submittals specified in individual Sections, including tools, spare parts, extra materials, and similar items, and deliver to location designated by Architect. Label with manufacturer's name and model number. |
| a. Schedule of Maintenance Material Items: Prepare and submit schedule of maintenance material submittal items, including name and quantity of each item and name and number of related Specification Section. Obtain Architect's signature for receipt of ... |
| C. Procedures Prior to Substantial Completion: Complete the following a minimum of 10 days prior to requesting inspection for determining date of Substantial Completion. List items below that are incomplete at time of request. |
| 1. Instruct Owner's personnel in maintenance of products and systems. |
| 2. Terminate and remove temporary facilities from Project site, along with mockups, construction tools, and similar elements. |
| 3. Complete final cleaning requirements. |
| D. Inspection: Submit a written request for inspection to determine Substantial Completion a minimum of 10 days prior to date the Work will be completed and ready for final inspection and tests. On receipt of request, Architect will either proceed wit... |
| 1. Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected. |
| 2. Results of completed inspection will form the basis of requirements for final completion. |
| 1.5 FINAL COMPLETION PROCEDURES |
| A. Submittals Prior to Final Completion: Before requesting final inspection for determining final completion, complete the following: |
| 1. Submit a final Application for Payment. |
| 2. Certified List of Incomplete Items: Submit certified copy of Architect's Substantial Completion inspection list of items to be completed or corrected (punch list), endorsed and dated by Architect. Certified copy of the list shall state that each it... |
| B. Inspection: Submit a written request for final inspection to determine acceptance a minimum of 10 days prior to date the work will be completed and ready for final inspection and tests. On receipt of request, Architect will either proceed with insp... |
| 1. Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected. |
| 1.6 LIST OF INCOMPLETE ITEMS (PUNCH LIST) |
| A. Organization of List: Include name and identification of each space and area affected by construction operations for incomplete items and items needing correction including, if necessary, areas disturbed by Contractor that are outside the limits of... |
| 1. Organize list of spaces in sequential order. |
| 2. Organize items applying to each space by major element, including categories for ceiling, individual walls, floors, equipment, and building systems. |
| 3. Include the following information at the top of each page: |
| a. Project name. |
| b. Date. |
| c. Name of Architect. |
| d. Name of Contractor. |
| e. Page number. |
| PART 2 - PRODUCTS – Not Used |
| PART 3 - EXECUTION |
| 3.1 FINAL CLEANING |
| A. General: Perform final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and antipollution regulations. |
| B. Cleaning: Employ experienced workers for final cleaning. Clean each surface or unit to condition expected in an average commercial building cleaning and maintenance program. Comply with manufacturer's written instructions. |
| a. Clean Project site, yard, and grounds, in areas disturbed by construction activities, including landscape development areas, of rubbish, waste material, litter, and other foreign substances. |
| b. Sweep paved areas broom clean. Remove petrochemical spills, stains, and other foreign deposits. |
| c. Remove tools, construction equipment, machinery, and surplus material from Project site. |
| d. Remove debris from roofs. |
C. Construction Waste Disposal: Comply with waste disposal requirements in Section 017419 "Construction Waste Management and Disposal."
| 3.2 REPAIR OF THE WORK |
| A. Complete repair and restoration operations before requesting inspection for determination of Substantial Completion. |
| B. Repair, or remove and replace, defective construction. Repairing includes replacing defective parts, refinishing damaged surfaces, and touching up with matching materials. Where damaged items cannot be repaired or restored, provide replacements. Re... |
| 1. Remove and replace chipped, scratched, and broken glass, reflective surfaces, and other damaged transparent materials. |
| 2. Touch up and otherwise repair and restore marred or exposed finishes and surfaces. Replace finishes and surfaces that that already show evidence of repair or restoration. |
| 017839 FL - Project Record Documents |
| 024119 FL - Selective Demolition |
| 040110 FL - Masonry Cleaning and Repair |
| 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 cleaning and repair of the following: |
| 1. Unit masonry surfaces. |
| 1.3 DEFINITIONS |
| A. Very Low-Pressure Spray: Under 100 psi. |
| B. Low-Pressure Spray: 100 to 400 psi; 4 to 6 gpm. |
| C. Medium-Pressure Spray: 400 to 800 psi; 4 to 6 gpm. |
| D. High-Pressure Spray: 800 to 1200 psi; 4 to 6 gpm. |
| E. Aggregates: The sand component of mortar. |
| F. Biocides: A chemical treatment that inhibits, deters, or controls organic growth. Such growth is typically removed by cleaning following biocide treatment. |
| G. Binder: The component of mortar that binds together the aggregate particles into a cohesive material. |
| H. Dispersed Lime Crack Injection: A repair method in which dispersed lime material is injected into small cracks ranging in width from hairline to 1/8 inch by use of needle or syringe. |
| I. Consolidant: A chemical product meant to strengthen loose or deteriorated stone. |
| J. Harvested: Units removed from inconspicuous areas of the building. |
| K. In situ: A term referring to a repair procedure in which the masonry units and mortar remain in place and are repaired without removal from the wall system. |
| L. Joint Sealant: A flexible, chemical product that is used to create a weather-tight seal at the boundary of masonry units with other units or dissimilar materials. |
| M. Lead Flashing: An extruded lead material that is inserted into joints to assist in precluding water entry into the masonry. |
| N. Lime Wash: A protective surface treatment comprised of calcium hydroxide particles in suspension in water, along with small amounts of calcium carbonate, silica particles and other minerals. |
| O. Mockup: Specific area on the building approved by the Architect to demonstrate the ability to apply, match, and install specified materials. |
| P. Mortar: A mixture of binders, aggregates, and pigments used for reconstruction, repointing, or stucco applications. |
| Q. Patch: The use of substitute repair materials to treat damaged or deteriorated masonry units in situ. |
| R. Repoint: To remove existing mortar joints to the specified depth and replace with a mortar that matches in color, texture, and performance with water vapor transmission, bond, hardness, and flexibility compatible with original mortar, as assessed i... |
| S. Saturated Surface Dry (SSD): Condition of the wall surface after water has been applied sufficient to saturate more than the surface, then allowed to dry until the surface is dry but the body of the masonry still has moisture. |
| 1.4 PREINSTALLATION MEETING |
| A. Preinstallation Conference: Conduct conference at Project site. |
| 1. Review methods and procedures related to cleaning masonry including, but not limited to, the following: |
| a. Materials, material application, and sequencing. |
| b. Cleaning program. |
| c. Coordination with building occupants. |
| 1.5 SEQUENCING AND SCHEDULING |
| A. Work Sequence: Perform masonry-cleaning work in the following sequence: |
| 1. Remove plant growth. |
| 2. Inspect for open mortar joints. Where repairs are required, delay further cleaning work until after repairs are completed, cured, and dried to prevent the intrusion of water and other cleaning materials into the wall. |
| 3. Clean masonry surfaces. |
| 4. Once all masonry cleaning and repairs are completed install breathable brick sealer. |
B. As scaffolding is removed, patch anchor holes used to attach scaffolding. Patch holes in masonry units. Patch holes in mortar joints.
| 1.6 ACTION SUBMITTALS |
| A. Product Data: For each type of product. |
| 1. Include material descriptions and application instructions. |
| 2. Include test data substantiating that products comply with requirements. |
| 1.7 INFORMATIONAL SUBMITTALS |
| A. Preconstruction Test Reports: For cleaning materials and methods. |
| B. Cleaning program. |
| 1.8 QUALITY ASSURANCE |
| A. Cleaning Program: Prepare a written cleaning program that describes cleaning process in detail, including materials, methods, and equipment to be used; protection of surrounding materials; and control of runoff during operations. Include provisions... |
| 1. If materials and methods other than those indicated are proposed for any phase of cleaning work, add a written description of such materials and methods, including evidence of successful use on comparable projects and demonstrations to show their e... |
| a. Test cleaners and methods on samples of adjacent materials for possible adverse reactions. Do not test cleaners and methods known to have deleterious effect. |
| b. Allow a waiting period of not less than seven days after completion of sample cleaning to permit a study of sample panels for negative reactions. |
| 1.9 FIELD CONDITIONS |
| A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit masonry-cleaning work to be performed according to product manufacturers' written instructions and specified requirements. |
| B. Clean masonry surfaces only when air temperature is 40 deg F and above and is predicted to remain so for at least seven days after completion of cleaning. |
| PART 2 - PRODUCTS |
| 2.1 REPAIR MATERIALS |
| A. General: Use repair materials of one type and from one source, when used in repair treatments that will have surfaces exposed in the finished structure. |
| B. Breathable Brick Sealer: Basis of design, “Drylok Siloxane 7.” |
| C. Testing and Matching |
| 1. Take test specimens of existing mortar from a sound and intact representative portion of the structure and assess in accordance with ASTM C1713 and ASTM C1324. |
| 2. Subject a part of the historic mortar sample to petrographic examination and differential thermal analysis, or X-ray diffraction, or analytical chemistry to determine the binder components. |
| 3. Aggregate Analysis |
| a. Separate aggregate of the mortar sample from the binder by taking the crushed mortar sample and either gently blowing away the fine binder material, placing the crushed sample in a centrifuge, or chemically separating the aggregate from the binder. |
| b. Rinse the separated aggregate clean with water and dry. Examine the aggregate with a magnifying glass and record the component materials as to range of materials, sizes, colors, as well as the presence of other materials. |
| c. Perform sand analysis using a sieve analysis of the aggregate as part of the ASTM C1324 process. |
4. Match the replacement mortar to the original existing material in color, texture, and tooling.
| D. Replacement Mortar: Provide replacement mortar that will: |
| 1. Coexist with the old in a sympathetic, supportive, and, if necessary, sacrificial capacity. |
| 2. Have greater vapor permeability and be softer (measured in compressive strength) than the masonry units. |
| a. Measure water vapor transmission in accordance with ASTM E96/E96M |
| b. Prepare ASTM E96/E96M water vapor transmission specimens with thickness similar to that expected in service, or a maximum of ½ inch, whichever is thinner. |
3. Be as vapor permeable, and as soft, or softer, (measured in compressive strength) than the existing historic mortar or stucco.
| E. Binder Content: Provide binder type or mixture of mortar with a cement, lime, or combination thereof consistent with the original existing mortar content in order to provide uniform durability, weathering characteristics, and the same, or better, l... |
| F. Repointing Mortar: Pre-blend repointing mortar in single containers in a factory-controlled environment. |
| G. Admixtures: Do not use admixtures in the mortar unless specifically approved in writing by the Architect. |
| H. Replacement Masonry Materials |
| 1. Clay Brick |
| a. Provide replacement brick matching color, shape, size, texture, appearance, and thermal expansion properties of the existing brick. |
| b. Test brick in comparison to the original existing brick using ASTM C67/C67M. |
| c. Do not use reclaimed brick unless approved by the Architect. |
| d. Provide brick meeting the requirements of ASTM C216 Grade SW, including a rating of “not effloresced”, unless otherwise specified. |
| 2.2 CLEANING MATERIALS |
| A. Water: Potable. |
| B. Mold, Mildew, and Algae Remover, Job Mixed: Solution prepared by mixing 2 cups of tetrasodium pyrophosphate (TSPP), 5 quarts of 5 percent sodium hypochlorite (bleach), and 15 quarts of hot water for every 5 gal. of solution required. |
| 2.3 CHEMICAL CLEANING SOLUTIONS |
| A. Dilute chemical cleaners with water to produce solutions not exceeding concentration recommended in writing by chemical-cleaner manufacturer. |
| PART 3 - EXECUTION |
| 3.1 PROTECTION |
| A. Comply with each manufacturer's written instructions for protecting building and other surfaces against damage from exposure to its products. Prevent chemical cleaning solutions from coming into contact with people, motor vehicles, landscaping, bui... |
| 1. Cover adjacent surfaces with materials that are proven to resist chemical cleaners used unless products being used will not damage adjacent surfaces. Use protective materials that are waterproof and UV resistant. Apply masking agents according to m... |
| 2. Do not apply chemical solutions during winds of enough force to spread them to unprotected surfaces. |
| 3. Neutralize alkaline and acid wastes before disposal. |
| 4. Dispose of runoff from operations by legal means and in a manner that prevents soil erosion, undermining of paving and foundations, damage to landscaping, and water penetration into building interiors. |
| B. Remove downspouts and associated hardware adjacent to immediate work area and store during masonry cleaning. Reinstall when masonry cleaning and repair is complete. |
| 1. Provide temporary rain drainage during work to direct water away from building. |
| 3.2 CLEANING MASONRY, GENERAL |
| A. Cleaning Appearance Standard: Cleaned surfaces are to have a uniform appearance as viewed from 50 feet away by Architect. |
| B. Proceed with cleaning in an orderly manner; work from top to bottom and from one end of each elevation to the other. Ensure that dirty residues and rinse water do not wash over dry, cleaned surfaces. |
| C. Use only those cleaning methods indicated for each masonry material and location. |
| 1. Brushes: Do not use wire brushes or brushes that are not resistant to chemical cleaner being used. |
| 2. Spray Equipment: Use spray equipment that provides controlled application at volume and pressure indicated, measured at nozzle. Adjust pressure and volume to ensure that cleaning methods do not damage surfaces, including joints. |
| a. Equip units with pressure gages. |
| b. For chemical-cleaner spray application, use low-pressure tank or chemical pump suitable for chemical cleaner indicated, equipped with nozzle having a cone-shaped spray. |
| D. Perform each cleaning method indicated in a manner that results in uniform coverage of all surfaces, including corners, moldings, and interstices, and that produces an even effect without streaking or damaging masonry surfaces. Keep wall wet below ... |
| E. Perform additional general cleaning, stain removal, and spot cleaning of small areas that are noticeably different when viewed according to the "Cleaning Appearance Standard" Paragraph, so that cleaned surfaces blend smoothly into surrounding areas. |
| F. If using Chemical-Cleaner Application Methods: Apply chemical cleaners to masonry surfaces according to chemical-cleaner manufacturer's written instructions; use brush or spray application. Do not spray apply at pressures exceeding 50 psi. Do not a... |
| G. Rinse off chemical residue and soil by working upward from bottom to top of each treated area at each stage or scaffold setting. Periodically during each rinse, test pH of rinse water running off of cleaned area to determine that chemical cleaner i... |
| 1. Apply neutralizing agent and repeat rinse if necessary to produce tested pH of between 6.7 and 7.5. |
H. After cleaning is complete, remove protection no longer required. Remove tape and adhesive marks.
| 3.3 PRELIMINARY CLEANING |
| A. Completely remove visible plant, moss, and shrub growth from masonry surfaces. Carefully remove plants, creepers, and vegetation by cutting at roots and allowing remaining growth to dry as long as possible before removal. Remove loose soil and plan... |
| 3.4 CLEANING MASONRY |
| A. Cold-Water Soak: |
| 1. Apply cold water by intermittent spraying to keep surface moist. |
| 2. Use perforated hoses or other means that apply a fine water mist to entire surface being cleaned. |
| 3. Apply water in cycles of five minutes on and 20 minutes off. |
| 4. Continue spraying until surface encrustation has softened enough to permit its removal by water wash, as indicated by cleaning tests. |
| 5. Remove soil and softened surface encrustation from surface with cold water applied by low-pressure spray. |
| B. Cold-Water Wash: Use cold water applied by medium-pressure spray. |
| C. Hot-Water Wash: Use hot water applied by medium-pressure spray. |
| D. Detergent Cleaning: |
| 1. Wet surface with cold water applied by low-pressure spray. |
| 2. Scrub surface with detergent solution using medium-soft brushes until soil is thoroughly dislodged and can be removed by rinsing. Use small brushes to remove soil from mortar joints and crevices. Dip brush in solution often to ensure that adequate ... |
| 3. Rinse with cold water applied by low-pressure spray to remove detergent solution and soil. |
| 4. Repeat cleaning procedure above where required to produce cleaning effect established by mockup. |
| E. Mold, Mildew, and Algae Removal: |
| 1. Wet surface with cold water applied by low-pressure spray. |
| 2. Apply mold, mildew, and algae remover by brush or low-pressure spray. |
| 3. Scrub surface with medium-soft brushes until mold, mildew, and algae are thoroughly dislodged and can be removed by rinsing. Use small brushes for mortar joints and crevices. Dip brush in mold, mildew, and algae remover often to ensure that adequat... |
| 4. Rinse with cold water applied by low-pressure spray to remove mold, mildew, and algae remover and soil. |
| F. Nonacidic Liquid Chemical Cleaning: |
| 1. Wet surface with cold water applied by low-pressure spray. |
| 2. Apply cleaner to surface in two applications by brush or low-pressure spray. |
| 3. Let cleaner remain on surface for period recommended in writing by chemical-cleaner manufacturer. |
| 4. Rinse with cold water applied by low-pressure spray to remove chemicals and soil. |
| 3.5 MASONRY REPAIR |
| A. General: |
| 1. Match repaired surfaces with adjacent existing surfaces in all respects. |
| 2. Use products in accordance with the manufacturer’s instructions. |
| B. Repointing Masonry: Repoint masonry in accordance with the National Park Service’s (NPS) Technical Preservation Services (TPS) Brief 2, using ASTM E2260 as a reference guide. |
| 1. Wall Preparation |
| a. Remove old caulking, grout, or non-original mortar from previously repaired joints to a minimum depth of 2.5 times the width of the joint. Cut all joints (unless otherwise noted) back to sound, solid, back up material. Leave a clean, square face at... |
| b. Shallow or feather edging is not permitted. Remove loose particles from joints. Clean joints, followed by blowing with filtered, dry, compressed air or vacuum. |
| c. Cut out existing horizontal mortar joints (bed joints) that are filled with a hard Portland mortar using a diamond blade that is narrower than the joint width. Cut out the middle one-third of the mortar joint using a rotary power saw. Remove the re... |
| d. Do not use rotary power saws to cut out vertical joints (head joints). Remove all vertical head joints by hand using a pneumatic carving tool, or hammer and chisel. |
| e. Remove existing lime-based mortar using inly small-headed chisels that are no wider than half the width of the existing masonry joints. Pneumatic air carving chisels are permitted as are specially designed mortar removal reciprocating tools (i.e. A... |
| f. Do not widen the existing masonry joints. Do not chip or spall the surrounding masonry edges in the process of mortar removal. Damage to surrounding masonry units resulting from rotary blade over running is not permitted. Damages to adjacent materi... |
| 2. Presoaking Masonry / Mortar Consistency / Lifts |
| a. Use the same mortar as the repointing mortar for setting the replacement masonry. |
| b. Soak exposed surfaces of masonry adjacent to joint with water prior to repointing. |
| c. Allow time for excess water to run off and evaporate prior to repointing. Joint surfaces must be damp but free from standing water. |
| d. Maintain a water sprayer on site at all times during the repointing process. |
| e. The mortar material must resemble the consistency of brown sugar during installation. This drier consistency enables the material to be tightly packed into the joint, allows for cleaner work, and prevents shrinkage cracks as the mortar cures. |
| f. Allow mixed repointing mortar to stand for not less than one-half hour and not more than one and one-half hours for pre-hydration to reduce post-curing shrinkage. After this time, water can be added to small batches by hand to bring the mortar to a... |
| g. Point joints in layers or “lifts” where the joints are deeper than 1-1/4 inch. Apply in layers not less than ½ the depth but not more than 1-1/4 inch or until a uniform depth is formed. |
| 3. Compression / Joint Finish / Curing |
| a. Compress each layer thoroughly. |
| b. When mortar is thumbprint hard at the surface of the wall, finish the joints to match the original joint profile. |
| 4. Protection |
| a. Keep the mortar from drying out too quickly or from becoming too wet. |
| b. Protect mortar from direct sun and high winds for the first 72 hours after installation or from driving rain for the first 24 hours, using plastic sheeting if necessary. Do not create a greenhouse effect by sealing off air movement in an attempt to... |
| C. Masonry Removal and Replacement |
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