B08_Solicitation_-_Attachment_1_-_Specifications.pdf

Div. 1 V. 2022-9-6 Page | 1

LITTLE ROCK CENTRAL HIGH SCHOOL

NATIONAL HISTORIC SITE

LITTLE ROCK, ARKANSAS

REPLACE VISITOR CENTER HVAC

PMIS 305706

Drawing No: 037/80004

PROJECT SPECIFICATIONS

FINAL CONSTRUCTION DOCUMENTS SUBMITTAL

27 FEBRUARY, 2023

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TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 10 00 Division 01 Short Form General Requirements 01 15 00 Cutting and Patching

DIVISION 2 – EXISTING CONDITIONS

02 41 19 Selective Demolition

DIVISION 9 – FINISHES

09 51 00 Acoustical Treatment 09 90 00 Painting

DIVISION 23 - HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC)

23 04 00 Common Requirements for HVAC 23 05 53 Identification for HVAC Piping and Equipment 23 05 93 Testing, Adjusting, and Balancing For HVAC 23 07 13 Duct Insulation 23 31 00 HVAC Ducts and Casings 23 37 00 Air Outlets and Inlets 23 81 46 Water-Source Unitary Heat Pumps

DIVISION 26 - ELECTRICAL

26 04 00 Common Requirements for Electrical 26 05 19 Low-Voltage Electrical Power Conductors and Cables 26 05 26 Grounding and Bonding 26 05 29 Hangers and Supports 26 05 33.13 Conduit 26 05 33.16 Boxes 26 05 53 Identification for Electrical Systems 26 05 83 Wiring Connections

DRAWINGS

UNDER SEPARATE COVER.

THIS PAGE INTENTIONALLY LEFT BLANK.

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SECTION 01 10 00

DIVISION 1 SHORT FORM GENERAL REQUIREMENTS

PART 1 – GENERAL

ITEM 1 - DESCRIPTION OF WORK

1.1 Background: The National Historic Site Visitor Center opened in September 2007 to mark the

50th anniversary of the school's desegregation and is one of the most-visited Little Rock landmarks. It offers Little Rock Nine information through interactive exhibits commemorating the events and telling the Little Rock Nine story. The HVAC system is original to the building and has reached the end of its service life expectancy. The units servicing the public spaces are not working properly. This project will change out units HP-5 and HP-6 located on the multipurpose room’s mezzanine located over two storage rooms.

1.2 Work Covered by the Contract Documents:

A. Project Location: Little Rock Central High School NHS

2120 W. Daisy L. Gatson Bates Drive

Little Rock, AR 72202-5212

Work consists of: replacing Heat Pumps 5 & 6 located on a mezzanine level over two storage rooms adjacent to the multipurpose room. The lay-in ceilings in the two storage rooms will be removed. Lights, diffusers and devices will be salvaged for reuse. An existing cold formed steel joist, plywood decked mezzanine will be partially dismantled to provide access to the units which sit on separate vibration dampening carriages suspended by all-thread. The mezzanine will be reassembled. New grid and ceiling tile will be installed. Finishing work such as painting as required to facilitate a finished replacement of the units.

B. All work will be performed under a single contract.

C. Period of performance: Work shall be completed within 150 calendar days of the start date provided on the Notice to Proceed.

ITEM 2 – PROTECTING EXISTING UTILITIES

2.1 Protecting Existing Utilities: Notify Contracting Officer (CO), Contracting Officer’s Representative

(COR) and utility companies as required to request location services prior to and to coordinate any excavation/digging operations, and/or for demolition if within Scope of Work.

2.2 Contractor shall be responsible for locating and preventing damage to known utilities on site or indoors. If contractor damage occurs, alert CO and COR as soon as safely possible, and repair utility at no additional expense to the Government. If damage occurs to an unknown utility, contact CO and COR as soon as safely possible.

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2.3 Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated below:

A. Notify CO and COR not less than two business days in advance of proposed utility interruptions.

B. Hours for Utility Shutdowns: Shutdowns shall not exceed 2 to 3 hours. Temporary provisions will be needed by the Contractor for periods longer than stated allowance or if required for critical systems as determined by COR.

ITEM 3 - CONTRACTOR’S USE OF PREMISES

3.1 Conduct of Operations: At all times the contractor shall conduct his operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park

Service, and applicable park rules and regulations prescribed by the Park Superintendent.

A. No signs or advertisements (except those specified herein and as required for safety) shall be displayed on the construction site or within the park unless approved by the Contracting

Officer.

B. Smoking is not permitted within any Federal building or within 25 feet of entrances, operable windows, or outdoor air intakes.

C. Public Use of Site: Contractor shall at all times conduct operations to ensure the least inconvenience to the public.

3.2 On-site work hours: Work shall be generally performed during normal business working hours of

7 a.m. to 5 p.m., Monday through Friday, except when otherwise indicated.

A. Work on Saturdays, Sundays, Federal holidays, early morning, or at night may not be performed without prior consent from the CO and COR. Submit requests for work outside of the stated normal business hours to the CO and COR for approval at least 48 hours in advance of the work.

The following Federal holidays are observed by the National Park Service:

New Year Day

Martin Luther King, Jr’s Birthday

Washington’s Birthday

Memorial Day

Juneteenth National Independence Day

Independence Day

Labor Day

Columbus Day

Veterans Day

Thanksgiving Day

Christmas Day

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B. Note: Any of the above holidays falling on a Saturday will be observed on the preceding

Friday; holidays falling on Sunday will be observed on the following Monday. The specific day that each holiday is recognized for each year can be found at the following site: Federal

Holidays (opm.gov).

3.3 Contractor Use of Site:

A. General: Contractor shall have limited use of the site for construction operations. Limit use of premises to construction area as shown on floor plan. Do not disturb portions of Project site and building beyond areas in which the Work is indicated.

1. Drop-off and deliveries will be scheduled before 10:00 am prior to when the Visitor Center opens to visitors. Delivers shall be completed prior to 10:00 am.

2. Parking is limited to 2 company vehicles in far SE corner of parking lot.

3. Multipurpose room will be available for storage and as a work area.

4. No outside storage will be allowed.

B. Driveways and Entrances: Keep driveways, access roads, and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize use of driveways and entrances.

C. Utilities

5. General: Cost or use charges for temporary facilities shall be included in the Contract Sum as required.

6. Water Service: Water from existing water system is available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. Use resources wisely and minimize waste of water.

7. Electric Power Service: Electric power from existing system is available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. Power may or may not meet your construction power tool requirements, provide generators if questionable. Use power in a resourceful manner and avoid excess power waste.

8. Waste Operation:

a. Toilets: Contractor shall be able to use the existing restroom facilities at the Visitor’s

Center. The restroom facilities shall be kept in immaculate condition. At the discretion of Park personnel and/or COR; contractor may lose the use of the restroom facilities if they are not kept clean and orderly. Restroom use will be a “One strike and you’re out” policy.

1. If restroom privileges are revoked Contractor will be required to provide a toilet for contracting personnel, sufficiently lighted and ventilated toilet facilities in weatherproof, sight proof, handicap accessible (if required), sturdy enclosures with privacy locks. Coordinate with COR for approved location.

b. Waste Removal / Recycling: Contractor is responsible for removing all waste created by the project. Contractor shall recycle to the highest degree possible and empty dumpsters as necessary to avoid debris on site. Locate as shown on site plan or coordinated with COR.

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D. Security and Protection facilities:

1. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with state and federal environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

2. Cleaning of Equipment: The Contractor shall ensure that prior to moving on to the Project Area, all equipment, is free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. Ensure that all equipment has been pressure washed and is free of exotic species prior to start-up of operations and moving of equipment to Project Area.

Equipment shall be considered free of soil, seeds, and other debris when a visual inspection does not disclose such material. Disassembly of equipment components or specialized inspection tools are not required.

3. Pest Control: Follow best practices to minimize attraction and harboring of rodents, roaches, and other pests and to perform extermination and control procedures at regular intervals so Project will be free of pests and their residues at project completion. Perform control operations lawfully, using environmentally safe materials.

4. Floor and Surface Protection: The Contractor shall protect the flooring and wall finishes in the designated storage and work areas. Protect floor and wall finishes and carpet with floor protection paper or red rosen paper (minimum). Contractor shall also protect building areas used for deliveries and areas used to move equipment and materials to the project area.

Do not leave protection materials in public spaces during visitor hours.

5. Temporary Enclosures: N/A

6. Site Enclosure Fence: N/A

7. Security Enclosure and Lockup: N/A

3.4 Storage - Staging Areas:

A. Confine Storage of materials and equipment to the project staging provided in the

Multipurpose room. Specific storage and staging area’s may be discussed at the preconstruction briefing. Limits of use and control shall be subject to Contracting Officer’s approval.

a. Schedule deliveries prior to 10:00 am and minimize space and time requirements for storage of materials and equipment on-site.

b. Deliveries are to be completed, materials stored and protection measures removed prior to 10:00 am.

3.5 Preservation of Natural Features: N/A.

3.6 Hauling Restrictions: Contractor to verify path to site and meet state and county road requirements and height restrictions for all park work/access.

3.7 Housekeeping:

A. Keep project neat, orderly, and in a safe condition at all times.

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1. Dispose of waste materials and recycling legally outside the park. The contractor shall not use park dumpsters

2. Address Recycling: Government goal is to salvage and recycle as much nonhazardous construction waste as possible. Use sustainable methods to extent possible during this project, recycling material as is probable with local means. Maintain accurate documentary records for submittal of all recycled materials used including fly ash and slag cement.

3.8 Occupancy Requirements for Buildings:

A. Existing Buildings:

1. Full Government Occupancy: Government will occupy buildings that will be under construction during the entire contract period. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage. Perform the Work so as not to interfere with Government's day-to-day operations. Maintain existing exits, unless otherwise indicated.

a. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from the CO or COR.

b. Maintain existing building in a weather tight condition throughout construction period. Repair damage caused by construction operations. Protect building and its occupants during construction period.

3.9 Photo Documentation:

A. Contractor must provide existing condition, progress, and completion photos. All photos shall be in focus, show maximum range of depth of field general photo and then close up detail photo as needed. Shall be in JPEG digital form and submitted electronically by email or via

CD-R Archival Gold or DVD-R Archival Gold media with printed labels and 8 mega pixels minimum within 7 days from time of taken or as approved by COR.

B. Existing Condition Images:

1. Before starting construction, take color, dated, digital images of project site and adjacent property/roads/etc. that may be impacted by construction activity/traffic. Include existing items to remain or be salvaged from different vantage points and with context for location identification.

C. Construction Progress Images:

1. Document all sub-surface work/ trenches etc. prior to backfill with photos covering enough overall field view to show location and then zoom in for details. (Locations and dimensions shall also be noted on as built drawing set.)

2. Maintain organized index for photos with date, description, etc.

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3. Additional images as needed when questions or emergency situations occur. Submit within 24 hours.

D. Completion Images:

1. Document all completed work within scope of work.

2. Maintain organized index for photos with date, description, etc..

3. Additional images as needed when questions or emergency situations occur. Submit within 24 hours.

3.10 Fire and Life Safety:

A. As a minimum, conduct one weekly 15 minute "toolbox" safety meetings. These meetings shall be conducted by a foreman or supervisor and attended by all construction personnel at the worksite. Topics need to coincide with work scheduled for the following week. Document and submit meeting minutes to the CO and COR within one day after the meeting and document the meetings on the daily reports.

B. Comply with the requirements of NFPA 241 (Standard for Safeguarding Construction, Alteration, and Demolition Operations). Take all necessary precautions to prevent fire during construction. Provide adequate ventilation during use of volatile or noxious substances.

C. Store and handle hazardous materials in accordance with manufacturers and OSHA 29CFR1926 Subpart D requirements 1926 | Occupational Safety and Health Administration (osha.gov). Maintain readily available, on site, MSDS/Safety Data Sheets (SDS) for each chemical.

1. Immediately report all spills of hazardous materials to the CO, COR, and park.

2. Maintain a spill emergency response kit.

3. Train employees how to respond to a spill and use the emergency response kit.

3.11 Noise and Acoustics Management

A. Noise Control: Perform all operations to minimize noise. Perform noise-producing work in less sensitive hours of the day or week as directed by the Contracting Officer or COR.

B. Repetitive and/or intermittent, high-level noise: Permitted only during Daytime.

1. Do not exceed the following dB(A) limitations at 50 feet:

Sound Level in dB(A) Time Duration of Impact Noise

70 More than 12 minutes in any hour

80 More than 3 minutes in any hour

2. Maximum permissible construction equipment noise levels at 50 feet:

EARTHMOVING dB(A) MATERIALS HANDLING dB(A)

Compressors 75 Pneumatic Tools 80

Pumps 75 Saws 75

Generators 75 Vibrators 75

C. Ambient Noise:

1. Maximum noise levels (dB) for receiving noise area at property line shall be as follows:

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a. Residential receiving area :

Daytime: 65 dB Nighttime: 45 dB

b. Commercial/Industrial receiving area:

Daytime: 67 dB Nighttime: 65 dB

ITEM 4 - COMMENCEMENT, PROSECUTION, AND COMPLETION

4.1 The Contractor shall commence work in accordance with the terms and conditions of the contract.

Contractor shall coordinate and incorporate long lead and delivery time items within the schedule.

ITEM 5 - EXAMINATION OF THE SITE

5.1 All bidders are urged to visit the job site and examine existing conditions before submitting bids.

Contractors will be accountable for understanding existing conditions. No cost changes for items viewable during site visit will be allowed.

ITEM 6 - ABBREVIATIONS

6.1 The list of abbreviations, standards and organizations which may be used in/referred within the

Construction Specifications or Special Provisions, may be found linked from the listed page below. On the home page, follow the link under “Contracting and Procurement” labeled “NPS

Reference Standards.” https://www.nps.gov/orgs/1671/do-business-with-us.htm

ITEM 7 - ACCIDENT PREVENTION

7.1 Description: The work of this section consists of establishing and implementing an effective accident prevention program (APP) and providing a safe environment for all personnel and visitors.

7.2 Submittals:

A. Accident Prevention (Safety) Plan (APP): Submit a site-specific accident prevention (safety) plan. The Plan shall be written to comply with OSHA and project requirements (a generic plan is not acceptable) including but not limited to the following:

1. Name and qualifications of responsible supervisor to carry out the program.

2. First aid and rescue procedures.

3. Training, both initial and continuing.

4. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to provide for property protection and safety of the public, National

Park Service personnel, and Contractor's employees. Identify the work included under each phase, with a Job Hazard Analysis (JHA)/Job Safety Analysis (JSA), etc. A sample

JHA template may be provided upon request.

5. Planning for possible emergency situations, such as earthquake, explosions, fires, floods, power outages, and windstorms. Such planning shall take into consideration the nature of construction, site conditions, and degree of exposure of persons and property.

6. Contractor to identify nearest location of medical facility for emergencies

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7. Recognition that works will be performed in remote areas with limited communication or cell phone coverage if applicable.

8. Supplemental hazard specific plans may be required IAW 29 CFR 1926 or 1910.

B. Meeting and Inspection Reports: Safety Meetings: As a minimum, conduct 15 minute

"toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite. Submit a report of safety meetings and inspections to CO and COR within one day after the meeting and document the meetings on the daily reports.

7.3 Qualification of Employees:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner to include operators of vehicles and equipment. Provide operating instructions for all equipment.

B. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

7.4 Accident Reporting: The Contractor shall report all accidents to the CO and COR as soon as safely possible and assist the CO and COR and other officials as required in the investigation of the accident.

7.5 First Aid Facilities: Provide access to facilities for the number of employees and appropriate to the hazards associated with the types of ongoing construction work at the site.

7.6 Emergency Instructions: Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

7.7 Personal Protective Equipment (PPE): It is the Contractor's responsibility to require all those working on or visiting the site to wear necessary protective equipment at all times.

A. PPE must meet requirements of applicable ANSI standards. Selection shall conform to OSHA

29CFR 1926 Subpart E.

B. A hard hat use area shall be designated by the Contractor. The hard hat area shall be posted by the Contractor in a manner satisfactory to the Contracting Officer.

C. All PPE will be serviceable at all times. At a minimum, maintain one set of PPE including hard hats and all other Accident Prevention Plan required equipment.

7.8 Hazardous Materials: It shall be the responsibility of all operators and contractors, functioning within the park to properly cleanup, mitigate and remediate if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from fleet and/or other support vehicles or stationary sources. Response shall be consistent with guidelines established by federal, state, and local regulations, and as outlined within the operator's Safety or Hazardous Materials Business Plan.

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A. If a spill, leak, or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

ITEM 8 - PRECONSTRUCTION CONFERENCE

8.1 If the Contracting Officer decides to conduct a preconstruction conference, the successful offeror will be notified and will be required to attend. The Contracting Officer’s notification will include specific details regarding the date, time, and location of the conference, any need for attendance by subcontractors, and information regarding the items to be discussed. See Item 9.1C below.

ITEM 9 - SUBMITTALS

9.1 General Contracting Submittal Procedures:

A. General: Prepare and submit submittals required by individual Technical Specification

Sections. Types of submittals are indicated in individual specific sections.

1. CM-16 Transmittal Form: All submittals shall be transmitted via electronic email using

National Park Service form CM-16 form. The form will be provided by the Contracting

Officer. No action will be taken on a submittal item unless accompanied by the CM-16 transmittal form. Submit completed CM-16 forms to the CO and the COR

B. Submittal List: administrative required submittals are listed below in 9.1.C and does not include technical section submittal requirements included in each technical section.

C. Preconstruction Conference Submittal: Satisfactory evidence of liability insurance coverage and workman’s compensation, and any applicable bonds, must be submitted within 10 calendar days of Notice of Award. The following items shall be submitted a minimum of one week prior to the Preconstruction Conference. If all of these documents have not been received one week prior to the scheduled Pre-Construction Conference date, the conference will be cancelled, Notice to Proceed may not be issued, and the Contracting Officer will consider other contractual remedies. Work shall not commence until written Notice to

Proceed has been issued. Contracting Officer will notify Contractor of tentative date for the

Pre-Construction Conference:

1. Letter designating Project Superintendent.

2. Construction Schedule. (Must include shop drawings, procurement time including long lead time items, mobilization, trade work progression and completion at minimum.)

3. A comprehensive breakdown of the Schedule of Values.

4. Accident Prevention (Safety) Plan (see section 7 of this document).

5. A list of Subcontractors for this project.

6. Written statements from subcontractors certifying compliance with applicable labor

i. standard clauses (SF1413).

7. Quality Control Plan.

8. Waste Management Plan.

9. Indoor Air Quality (IAQ) Management Plan.

10. List of Required Construction Permits. Include the following information for each permit:

a. Name of Permit.

b. The Agency(ies) with Jurisdiction issuing the permit.

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c. Information required from the Government to complete the permit application.

9.2 Project Shop Drawings, Product Data, and Samples: Contracting Officer will provide sample cover sheet and a list of required submittals is included in each technical specification or attached at the end of this document.

A. Shop Drawings: Indicate all coordinating materials and work impacting the installation coordination, connection details, anchorage requirements, hardware locations, and installation details and locations.

1. Submit Shop Drawings according to Part 9.1 of this section to include one digital file (.PDF or .TIF) and two full size hardcopy documents to COR.

B. Product Data: Provide component construction and specification data sheets, anchorage requirements and any other product specific data.

1. Submit Product Data according to Part 9.1 of this section to include one digital file (.PDF or .TIF) to COR.

C. Samples: Submit 2 color samples 4” x 6” minimum in size for all color and product selections.

Paint samples shall be actual paint finish drawdown for all project colors.

1. Submit Samples CM-16 Transmittal Form according to Part 9.1 of this section to include one digital file (.PDF or .TIF) and physical samples of actual material to COR.

D. For submittals specified above, forward submittals to Contracting Officer and COR at least 15 days before need for approval (depends on length of project).

E. After approving submittals, Contracting Officer and/or COR will return one copy to the

Contractor. If submittals are not approved, Contracting Officer will return all copies to

Contractor with reasons for rejection. Resubmit, identifying changes. Any work done before approval shall be at Contractor's own risk.

9.3 Approved Equals: If an item in this solicitation is identified as “brand name or equal” or lists more than 1 manufacturer, the description of the proposed item must reflect the characteristics and level of quality that will satisfy the Government’s needs as demonstrated by the salient physical, functional, or performance characteristics that “equal” products must meet and/or exceed that as specified in the solicitation or relevant specification.

A. For each item proposed as an “approved equal,” submit supporting data, including:

1. Drawings and samples as appropriate.

2. Comparison of the characteristics of the proposed item with that specified and with the salient characteristics provided.

3. Changes required in other elements of the work because of the substitution.

4. Name, address, and telephone number of vendor.

5. Manufacturer’s literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists.

Describe availability of maintenance service, and state source of replacement materials.

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B. A request for approval constitutes a representation that Contractor:

1. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

2. Will provide the same warranties for the proposed item as for the item specified.

3. Has determined that the proposed item is compatible with interfacing items.

4. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

5. Waives all claims for additional expenses that may be incurred as a result of the substitution.

C. Approved Equals will be evaluated and approved/disapproved during the submittal process.

9.4 Schedule of Values: Submit the Schedule of Values a minimum of one week prior to the

Preconstruction Conference for COR review. Schedule of Values shall include defined work line items with cost break downs including labor, material, and equipment for COR approval.

9.5 Progress Reporting: The initial Construction Schedule and Schedule of Values are required a minimum of one week prior to the Preconstruction Conference. After the Notice to Proceed is issued and after on-site work begins, progress will be documented via daily logs and by providing an updated Construction Schedule and Schedule of Values when requested, but minimally with each pay application. Submit digital copy electronically (PDF preferred) of all required documents.

Construction Schedules are normally in bar chart form and indicate estimated starting and completion dates for each part of the work. For a pay application to be reviewed and processed in a timely manner, the following information must either be submitted prior to or accompany submission of the pay application:

A. Daily/weekly progress reports during construction as part of the administration process.

B. Updated Schedule of Values: Breakdown each lump-sum item into component work activities used in the schedule, for which progress payments may be requested. The Schedule of

Values will form the basis for payment. The work activities broken out within the schedule of values shall be integrated into and made a logical part of the construction baseline schedule submitted under this specification. The total costs for the component work activities shall equal the contract price for that lump-sum item. The Contracting Officer may request data to verify accuracy of dollar values. A sample Schedule of Values format may be provided upon request.

ITEM 10 – TEMPORARY SERVICES

10.1 It is the Contractor’s responsibility to provide temporary services, equipment, tools, and skilled labor as required for the chosen means and methods to perform the work in accomplishing this

Contract.

ITEM 11 - PROJECT CLOSEOUT

11.1 Description: The work of this section consists of final cleanup, closeout submittals, final inspection procedures working toward Final Acceptance.

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11.2 Cleaning: Remove all tools, equipment, surplus materials, and rubbish. Move attic stock to location coordinated with COR. At time of final inspection, project shall be thoroughly clean and ready for intended use. Inspector holds the right to reschedule if project is not ready for inspection.

11.3 Completion and Final Inspection: Contractor shall submit written certification of project completion and request a final inspection to the Contracting Officer and COR. The Contracting

Officer or designee will make an inspection within 10 days of receipt of request or at a mutually agreeable time.

A. If the work is determined to be complete following the final inspection with minor comments, the COR will prepare and provide the Contractor a Punch List noting outstanding items to be addressed.

B. If the work is not determined to be complete following the final inspection, the Contracting

Officer will notify Contractor in writing, stating reasons. Contractor, after completing the work according to the Contract Documents, shall resubmit completion and request a new final inspection. Re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction contract clause.

C. Contractor shall complete the Punch List within 30 calendar days, or a time directed by the

CO.

D. Once Contractor completes all items of work on the Punch List and all contractually required items are accepted, Contracting Officer will issue Letter of Final Acceptance of Work and request the final pay application.

E. If the Contractor fails to complete the work within the time frame, the Contracting Officer may correct the work with an appropriate reduction in contract price or charge for re-inspection costs in accordance with the Inspection of Construction contract clause.

F. Disposition of any permits and warranties required by the specifications in this section.

11.4 Final Acceptance of the Work: After all punch list deficiencies have been corrected, a Letter of

Final Acceptance will be issued. A Release of Claims document must be executed and submitted to the Contracting Officer before final payment can occur.

11.5 Warranties

A. Construction Warranty shall be based on date of final acceptance of the work and remain in effect for one year.

B. Provide all manufacturer warranty information of products installed organized by Division. All contact information, extent of coverage and conditions shall be clearly noted as well as date of overall final acceptance.

C. Information shall include operation and maintenance manuals for each warranted product.

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PART 2 – PRODUCTS (NOT USED)

PART 3 – EXCUTION (NOT USED

END OF SECTION

LRCHS- 305706 01 15 00-1

SECTION 01 15 00

CUTTING AND PATCHING

PART 1 - GENERAL

1.1 DESCRIPTION OF WORK

A. Definitions: “Cutting and Patching” includes cutting into existing construction to provide for installation or performance of other Work and subsequent fitting and patching required to restore surfaces to their original conditions.

B. “Cutting and Patching” is performed for coordination of the Work, to uncover work for access or inspection, to obtain samples for testing, to permit alterations to be performed, or other similar purposes.

C. Cutting and Patching performed during the manufacture of products, or during the initial fabrication, erection or installation processes is not considered to be “Cutting and Patching”. Drilling of holes to install fasteners and similar operations are also not considered to be “Cutting and Patching”.

D. “Selective Demolition” is recognized as a related-but-separate category of work, which may or may not require cutting and patching as defined in this Section; refer to “Selective Demolition” Section of Division 2.

1.2 QUALITY ASSURANCE

A. Requirements for Structural Work: Do not cut and patch structural work in a manner that would result in a reduction of load-carrying capacity or of load-deflection ratio.

B. Operational and Safety Limitations: Do not cut and patch operational elements or safety related components in a manner that would result in a reduction of their capacity to perform in the manner intended, including energy performance, or that would result in increased maintenance, or decreased operational life or decreased safety.

C. Approval by the CO/COR to proceed with the work does not waive the CO/COR’s right to later require complete removal and replacement of work found to be cut and patched in an unsatisfactory manner.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Except as otherwise indicated, or as directed by the CO/COR, the materials for cutting and patching shall be identical to existing materials. If identical materials are not available, or cannot be used, use material that matches existing adjacent surfaces to the fullest extent possible with regard to visual effect. Use materials for cutting and patching that will result in equal-or-better performance characteristics.

PART 3 - EXECUTION

1.1 INSPECTION

A. Before cutting, examine the surface to be cut and patched and the conditions under which the work is to be performed. If unsafe or otherwise unsatisfactory conditions are encountered, notify CO/COR immediately. Execute cutting, fitting or patching of work required to: make several parts fit properly;

uncover work to provide for installation or ill-timed work; remove and replace defective work; remove and replace work not conforming to requirements of Contract Documents.

1.2 PREPARATION

LRCHS- 305706 01 15 00-2

A. Protect other work during cutting and patching to prevent damage. Provide protection from adverse weather conditions for that part of the project that may be exposed during cutting and patching operations.

1.3 PERFORMANCE

A. Employ skilled workmen to perform cutting and patching work. Except as otherwise indicated or as approved by the CO/COR, proceed with cutting and patching at the earliest feasible time and complete work without delay.

B. Cut the work using methods that are least likely to damage work to be retained or adjoining work.

Where possible review proposed procedures with the original installer; comply with original installer’s recommendations.

C. In general, where cutting is required use hand or small power tools designed for sawing or grinding, not hammering and chopping. Cut through concrete and masonry using a cutting machine such as a carborundum saw or core drill to insure a neat hole. Cut holes and slots neatly to size required with minimum disturbance of adjacent work. To avoid marring existing finished surfaces, cut or drill from exposed or finished side into concealed surfaces. Temporarily cover openings when not in use.

D. Comply with requirements of applicable Section ‘Selective Demolition’ in Division 2.

E. Patch with seams which are durable and as invisible as possible. Comply with specified tolerances for the work.

F. Where feasible, inspect and test patched areas to demonstrate integrity of work.

G. Restore exposed finishes of patched areas and where necessary extend finish restoration into retained adjoining work in a manner which will eliminate evidence of patching and refinishing.

H. Where removal of walls or partitions extends one finished area into another finished area, patch and repair floor and wall surfaces in the new space to provide an even surface of uniform color and appearance, remove existing floor and wall coverings and replace with new materials.

I. Where patch occurs in a smooth painted surface, extend final paint coat over entire unbroken surface containing patch, after patched area has received prime and base coat. See Section ‘Painting’ in Division 9.

1.4 CLEANING

A. Thoroughly clean areas and spaces where work is performed or used as access to work. Remove completely point mortar, oils, putty, and items of similar nature. Thoroughly clean piping, conduit, and similar features before painting or other finishing is applied. Restore damaged pipe covering to its original condition.

LRCHC 305706 2/10/2023

SELECTIVE DEMOLITION 024119 - 1

SECTION 024119

SELECTIVE DEMOLITION

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

a. Deconstruction and reconstruction of select portions of the building

b. Demolition and removal of select building elements.

1.2 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

1.3 PREINSTALLATION MEETINGS

A. Pre-demolition Conference: Conduct conference at the Little Rock Central High School Visitors Center (project site).

1.4 INFORMATIONAL SUBMITTALS

A. Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed for protecting individuals and property for dust control. Indicate proposed locations and construction of barriers.

B. Pre-demolition photographs or video.

C. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician.

1.5 QUALITY ASSURANCE

A. Refrigerant Recovery Technician Qualifications: Certified by an EPA-approved certification program.

1.6 FIELD CONDITIONS

A. NPS will occupy portions of building immediately adjacent to selective demolition area. Conduct selective demolition so Park’s operations will not be disrupted.

B. Conditions existing at time of inspection for bidding purpose will be maintained by NPS as far as practical.

1. Before selective demolition, NPS will remove the following items.

a. Incidental items from desks, shelves, etc.

b. Any furniture or equipment that the contractor wishes to move in order to access work areas will be moved out of the way by the contractor, and replaced upon

SELECTIVE DEMOLITION 024119 - 2

completion of the construction. Contractor shall coordinate all relocation of these items with the COR.

C. Notify COR of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

1. Hazardous materials will be removed by NPS before start of the Work.

2. If suspected hazardous materials are encountered, do not disturb, immediately notify the COR. Hazardous materials will be removed by NPS under a separate contract.

E. Storage or sale of removed items or materials on site is not permitted.

F. Utility Service: Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Maintain fire protection facilities in service during selective demolition operations.

G. Arrange selective demolition schedule so as not to interfere with NPS operations.

1.7 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials and using approved contractors so as not to void existing warranties.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ASSE A10.6 and NFPA 241.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped before starting selective demolition operations.

B. Perform an inspection of the area to determine rather removing any element might result in structural deficiency or unplanned collapse of any portion of structure or adjacent structures during selective building demolition operations.

C. Inventory and record the condition of items to be removed and reused.

SELECTIVE DEMOLITION 024119 - 3

3.2 PREPARATION

A. Refrigerant: Before starting demolition, remove refrigerant from mechanical equipment according to 40 CFR 82 and regulations of authorities having jurisdiction.

3.3 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing: Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage.

B. Existing: Services/Systems to Be Removed, Relocated, or Abandoned: Locate, identify, disconnect, and seal or cap off utility services and mechanical/electrical systems serving areas to be selectively demolished.

1. Provide 48 hours notice prior to shutting off utilities.

2. Coordinate the shut-off of utilities with the COR.

3. Only shut off utilities local to the project area and only as needed to accomplish work.

3.4 PROTECTION

A. Temporary Protection: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent building and facilities to remain.

B. Temporary Shoring: Design, provide, and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

C. Remove temporary barricades and protections where hazards no longer exist.

3.5 SELECTIVE DEMOLITION

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping.

Temporarily cover openings to remain.

2. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

3. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

4. Maintain fire watch during and for at least two hours after flame-cutting operations.

5. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

6. Dispose of demolished items and materials promptly. Comply with applicable laws and regulations.

SELECTIVE DEMOLITION 024119 - 4

B. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

C. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse.

2. Protect items from damage during transport and storage.

3. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

D. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by COR, items may be removed to a suitable, protected storage location during selective demolition and cleaned and reinstalled in their original locations after selective demotion operations are complete.

3.6 CLEANING

A. Remove demolition waste materials from Project site and recycle or dispose of them according applicable laws and regulations.

1. Do not allow demolished materials to accumulate on site.

2. Remove and transport debris in a matter that will prevent spillage on adjacent surfaces and areas.

3. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

4. Comply with requirements specified in Section 011000, Division 01 General Requirements"

B. Burning: Do not burn demolished materials.

C. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

LRCHS- 305706 09 51 00-1

SECTION 09 51 00

ACOUSTICAL TREATMENT

A. GENERAL

1.1 REQUIREMENTS OF REGULATORY AGENCIES

A. Acoustical tile shall have been tested under ASTM E 84, shall have a Class A rating with a flame spread of less than 25, and carry an Underwriters' Laboratories, Inc. label.

1.2 QUALITY ASSURANCE

A. Ceiling suspension systems must be capable of accepting specified electrical fixtures, diffusers and other specified ceiling accessories. The Contractor shall coordinate requirements prior to ordering such items.

Coordinate ceiling work with installers of related work including, but not limited to building insulation, gypsum board, light fixtures, mechanical systems, electrical systems and fire sprinkler systems.

B. The installation of acoustical ceilings and accessories shall be performed by an experienced firm which is acceptable to the manufacturer of the acoustical units and suspension system.

1.3 SUBMITTALS

A. Submit product data and samples of acoustical tile, grid and accessories in accordance with General

Requirements and Submittals List. Photographic reproductions will not be acceptable.

1.4 WARRANTY

A. Submit a written warranty executed by panel and grid manufacturer stating that:

1. Panels will be free from sagging, warping and delaminating.

2. Grid system shall sustain no more than 50 percent red rust as defined by ASTM B 117.

3. Warranty Period: 10 years from substantial completion date.

4. Submit in accordance with Section 011000, Division 01 General Requirements.

1.5 EXTRA STOCK

A. Deliver to the Government one unopened carton of each type, size and pattern of ceiling tile at project completion.

1.6 DELIVERY, STORAGE AND HANDLING

A. Material shall be delivered in the original packages, with seals unbroken and with the manufacturer’s name and brand stamped clearly thereon. No seconds or remnants shall be used. No materials shall be delivered or stored in the building until all glazing has been completed and all exterior openings closed in.

All wet work, including concrete, masonry, and plastering shall be completed and dried out.

1.7 JOB CONDITIONS

A. Installation of acoustical ceiling systems shall not begin until all all above-ceiling work is completed, all wet-work is completed, the space is completed and nominally dry, and the temperature maintained uniformly at minimum of 60 degrees, before, during and after installation. Humidity shall not exceed 40 percent before, during or after installation.

2.1 ACOUSTICAL CEILING UNITS

LRCHS- 305706 09 51 00-2

A. Provide: Armstrong: Dune, 1776, 24” x 48”, Tegular (verify- match existing) or approved equal.

1. Acoustical Panels Type AP

2. Surface Texture: Fine

3. Composition: Mineral Fiber

4. Color: White

5. Size: 24" x 48"

6. Edge Profile: Tegular 15/16" (verify- match existing)

2.2 ATC SUSPENSION SYSTEM AND ACCESSORIES

A. Hanger wires shall be No. 12-gauge prestretched galvanized wire conforming to ASTM A 641, soft, Class 1 zinc coating.

B. Exposed tee grid system shall be white enameled steel. System shall include main runner tees, cross tees and wall angles. Sections shall be of thickness and strength to support the ceiling assembly shown on the Drawings, with a maximum deflection of 1/360 of the span. Provide prefinished wall angles, concealed alignment splines, connector clips and other accessories as required for a complete installation.

C. System shall conform to ASTM C 635 Class A and shall be the following (verify- match existing or approved equal):

1. Armstrong World Industries Prelude XL, 15/16”

2.3 ALUMINUM CEILING BORDER TRIM

A. Aluminum ceiling border trim shall be 6063-T6 4” high aluminum extrusions and shall be one of the following (or approved equal):

1. Armstrong Axiom Classic straight trim

2. Gordon Contour CA straight trim

3. Chicago Metallic Infinity straight trim

B. Corners shall be factory-mitered with corner clip connectors. Finish shall be manufacturer’s standard white factory-applied baked-on enamel or polyester paint.

3.1 EXAMINATION

A. Do not proceed with installation until all wet work such as concrete, drywall, terrazzo and painting has been completed and thoroughly dried out. Before starting HVAC system in rooms to receive materials specified in this Section, make sure supply air is properly filtered and the building interior is free of construction dust.

3.2 PREPARATION

A. Measure each ceiling area and establish layout of ceiling panel units to balance border widths at opposite edges of each ceiling.