Attachment 1 - Specifications.pdf

U.S. ARMY CORPS OF ENGINEERS

NEVILLE ISLAND AREA OFFICE RENOVATIONS FY26

3510 GRAND AVENUE, PITTSBURGH, PA 15225

1. GENERAL REQUIREMENTS

1.1. GENERAL

This work is located at the Upper Ohio Area Construction Office, 3510 Grand Avenue, Pittsburgh, PA 15225. The site may be reached from state and local roads and streets. The general description of the work is to furnish all equipment, labor of work, supervision, and materials necessary to complete the work as shown and as specified.

The work includes demolition of interior partition wall, relocation of electrical and telecom outlets, and installation of a new 6” exposed, gypsum board finished bulkhead; demolish and terminate telecom and electrical outlets on masonry wall, fur out wall, and install new gypsum wall board; replace carpeting, vinyl floor tile, cove base and floor transition throughout the corridors, reception/administrative area, offices, conference room, kitchenette, file storage room, copy storage room, and vestibules; replace acoustical ceiling tiles in identified areas;

replacement of fluorescent lighting fixtures with LED lighting fixtures; install new window as indicated. These items shall include all other work required to complete the work as specified herein. The Contractor shall perform all work as indicated in the specifications utilizing the best standards of performance and construction for the respective trades. The Contractor shall utilize personnel who are thoroughly trained and familiar with the indicated requirements and the methods needed for proper performance of work. The Contractor shall coordinate construction to ensure uninterrupted progress and to provide an accurate fit between the works of all trades. The Contractor shall provide all equipment and materials necessary to complete the work as shown and as specified.

1.2. MEASUREMENT AND PAYMENT

The job price and payment made for the job item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, safety control, tests, reports, and for performing all work required for which separate payment is not otherwise provided. Payment terms for the Neville Island Area Office Renovations are as follows:

Payment Item: 0001 NEVILLE ISLAND AREA OFFICE RENOVATIONS

Payment: Payment shall include all costs of labor, materials, supplies, equipment, supervision, cleanup, and other costs of completing the work as shown and specified. All material provided in the performance of this contract shall be new and meet the requirements of the specifications.

Measurement: 1

Unit of Measure: JOB

1.3. KEY PERSONNEL

1.3.1. Superintendent

Provide a project superintendent with a minimum of 5 years’ experience in construction with at least 5 of those years as a superintendent on projects similar in size and complexity. The individual must be familiar with the requirements of EM 385-1-1 and have experience in the areas of hazard identification and safety compliance. The superintendent is to be on-site at all times during the performance of the work.

1.3.2. Quality Control System Manager (QCSM)

The QCSM is required to have a minimum of 5 years’ construction experience as quality control on projects similar in size and complexity. The QCSM is to always be onsite during construction and is to be employed by the prime Contractor.

1.3.3. Site Safety and Health Officer (SSHO)

The Contractor shall employ a minimum of one person as the primary Site Safety and Health Officer (SSHO) to implement and administer the Contractor’s safety program and the Government-accepted Accident Prevention Plan (APP). The SSHO is a full-time responsibility and shall report directly to a senior project or corporate official. The SSHO shall be present at the project site and be located so they have full mobility and reasonable access to all work.

1.4. SAFETY REQUIREMENTS

In addition to the requirements included in the provisions of this contract, all work shall comply with the most recent edition of the USACE Engineering Manual (EM) 385-1-1, “Safety and Occupational Health Requirements Manual”, and all applicable federal, state, and local laws, ordinances, criteria, rules, and regulations. Where the requirements herein, applicable laws, criteria, ordinances, regulations, and referenced documents vary, the most stringent requirements govern.

The latest version of the EM 385-1-1 is available online at:

https://www.publications.usace.army.mil/USACE-Publications/Engineer-Manuals/

1.4.1. Accident Prevention Plan (APP)

An Accident Prevention Plan (APP) is a site specific safety and occupational health plan that documents project, contract, and job-specific potential hazards in the workplace, and the company policies, controls, and work practices that will be used to minimize those hazards. The APP must be developed by a Competent Person and reviewed and approved by the Prime Contractor and the corporate safety official.

The Contractor shall develop the APP according to EM 385-1-1, paragraph 2-7.b. The Contractor must complete and submit the mandatory ENG Form 6293, AUG 2024, Accident Prevention Plan Worksheet. Current ENG Form 6293 shall be provided by the Government.

http://www.publications.usace.army.mil/USACE-Publications/Engineer-Manuals/

The APP shall be submitted to the COR for review with the District Safety and Occupational Health Office (SOHO) within 30 calendar days after receipt of the Notice to Proceed (NTP) and prior to any commencement of work. Work cannot begin without an approved APP. Once approved by the Contracting Officer, the APP and all attachments will be enforced as part of the contract. Disregarding provisions of this contract or the accepted APP is a cause for stopping of that portion of the work at the direction of the Contracting Officer until the matter has been rectified.

1.4.2. Risk Management

A risk management assessment tool, such as an Activity Hazard Analysis (AHA), shall be developed by the Contractor performing the work for each type of activity the Contractor will perform as part of the Contract. The assessment shall identify the job steps, specific anticipated hazards, site conditions, equipment, materials, personnel, and the control measures to be implemented to control the hazards. The Government reserves the right to require the Contractor to revise and resubmit any documents if they fail to effectively identify the work sequence, specific anticipated hazards, site conditions, equipment, materials, personnel, and the control measures to be implemented. Work shall not begin until the assessments have been accepted by the COR and discussed with all engaged in the activity.

These risk assessments shall be developed in accordance with EM 385-1-1, paragraph 2-6.

The Contractor may use non-mandatory ENG Form 6206, AUG 2024, Activity Hazard Analysis (AHA) to assist with completion of their risk assessments. Each employee performing work as part of an activity, task, or Definable Feature of Work (DFOW) shall review the risk assessment for the activity and sign the signature log designated for the assessment prior to beginning work. A signature log shall be maintained for each risk assessment. The most current ENG Form 6206 shall be provided by the Government.

1.4.3. Safety Meetings

The SSHO, supervisors, or foremen must conduct meetings at least once a week for all workers. Document meeting minutes to include the date, persons in attendance, subjects discussed, and names of individual(s) who conducted the meeting. Maintain documentation on-site and furnish copies to the Contracting Officer on request.

1.4.4. Implementation of Safety and Occupational Health (SOH) Program

The Contractor must employ a minimum of one Level 1 SSHO at each project site to function as the primary Level 1 SSHO responsible for ensuring all site personnel are implementing SOH requirements according to the contract, the EM 385-1-1, and applicable federal, state, and local requirements. A designated Level 1 SSHO must be at the site of work whenever work is performed.

All SSHOs must be designated in writing on mandatory ENG Form 6282, SEP 24 Site Safety and Health Officer Designation Letter. The form must be submitted to the Contracting Office for acceptance. Work must not be conducted until the Contracting Officer accepts the form/designation. The Contractor must maintain a copy of the accepted form at the site of work. Current ENG Form 6282 shall be provided by the Government. All SSHOs must meet the training/qualifications according to EM 385-1-1, paragraph 2-3.b. Specific responsibilities for the SSHO are outlined in EM 385-1-1, Chapter 2.

1.4.5. Mishap Notification

A mishap is any unplanned, undesired event that occurs during the course of work being performed, to include, accidents, incidents, and near misses. All accidents and near misses shall be reported to the Contracting Officer or Contracting Officer Representative IAW EM 385-1-1, Table 2-1 utilizing ENG Form 3394, AUG 2021, Mishap Notification and Investigation. Contractors are responsible for maintaining an OSHA Log of Work-Related Injuries and Illnesses (Form 300) and complying with all reporting and recordkeeping requirements specified in 29 Code of Federal Regulations (CFR) 1904.

1.4.6. Construction and Other Work

Comply with EM 385-1-1, NFPA 70, NFPA 70E, NFPA 241, the APP, the AHA, Federal and State OSHA regulations, and other related submittals and activity fire and safety regulations. The most stringent standard prevails. PPE is governed in all areas by the nature of the work the employee is performing.

1.4.7. Minimum Personal Protective Equipment

Personal Protective Equipment (PPE) is governed in all areas by the nature of work personnel are performing based on hazard evaluations. AHAs shall detail the PPE to be used that will provide appropriate protection for the work to be performed when required. All PPE shall be provided by the Contractor and shall be used and maintained in a sanitary and reliable condition.

Mandatory PPE, at minimum, shall include: hard hat, long pants, short sleeve shirts, and leather or other protective footwear. Use personal hearing protection at all times in designated noise hazardous areas or when performing noise hazardous tasks. Safety glasses must be worn or carried/available on each person.

1.4.8. Working near Electrical Equipment and Systems

Before working near electrical equipment and systems, reference the guidelines in the EM 385-1-1 Chapter 11. Employees working in the proximity of electrical equipment or conductors shall consider them to be energized. The Contractor shall coordinate these activities with the ACO or on-site construction representative.

1.5. QUALITY CONTROL

The quality control system shall consist of plans, procedures, and personnel necessary to produce an end product which complies with the contract requirements. The quality control system should cover all construction operations and be keyed to the proposed construction sequence.

The project quality control staff will be held responsible for ensuring the quality of work and implementing the three phases of quality control. Personnel are subject to removal by the Contracting Officer if there are on-going concerns with the quality of the work.

1.6. REFERENCE DRAWINGS

The reference sketch included shows existing conditions to the best knowledge of the Government as well as general requirements of the work to be completed. It shall be the responsibility of the Contractor to verify all dimensions and existing conditions in the field as well as notify the Contracting Officer of any discrepancies prior to commencing work.

1.7. PROJECT SUBMITTALS

Government approval is required for all submittals with a "G" designation. The Government reserves the right to require the Contractor to resubmit any item found not to comply with the contract. This does not relieve the Contractor from the obligation to furnish material conforming to the plans and specifications. It will not prevent the Contracting Officer from requiring removal and replacement of nonconforming material incorporated in the work.

All Contractor data submissions shall be submitted electronically to:

wayne.j.carney@usace.army.mil

All Contractor hardcopy submittals shall be submitted to:

Resident Engineer Neville Island Area Office 3510 Grand Avenue Pittsburgh, PA 15225

1.7.1. Preconstruction Submittals

1.7.1.1. Quality Control Plan (QCP); G

The Contractor shall complete and submit a Quality Control Plan for Government review.

The Contractor shall provide competent and qualified personnel to superintend and maintain the quality of the work. The quality control system shall consist of plans, procedures, and organization necessary to produce a product that complies with the contract requirements.

The plan shall cover all construction operations, both onsite and offsite, and be keyed to the proposed construction sequence. The Contracting Officer and their designated representatives reserve the right to conduct any inspections or perform any tests deemed necessary at any time during the execution of the contract to determine conformance with the requirements of these specifications.

1.7.1.2. Accident Prevention Plan (APP); G

The Contractor must prepare a written site-specific APP according to the requirements specified in the Accident Prevention Plan paragraph.

1.7.1.3. Activity Hazard Analysis (AHA); G

The Contractor shall submit an Activity Hazard Analysis for each work activity in accordance with the requirements specified in the Risk Management paragraph.

1.7.1.4. Project Schedule; G

A project Schedule must be provided in Excel format and updated as necessary or as required by the ACO. The schedule must be submitted 2 weeks after Notice to Proceed (NTP) and at least 2 weeks prior to the proposed start date.

1.7.1.5. Verification of Existing Conditions; G

The Contractor shall verify all dimensions and conditions in the field and shall advise the Contracting Officer of any discrepancy before performing any work. The Contractor shall submit a report with pictures, if necessary, to adequately document all existing conditions and identify any areas which are to be protected or preserved throughout the course of the work.

1.7.1.6. Site Access and Work Plan; G

Contractor shall submit for approval a written plan describing in detail all phases of construction including access to the site, movement of furniture or fixtures, demolition, and installation procedures. Plan shall address work sequencing, time projections, as well as how each step will be completed, controlled, and evaluated. All laydown areas for material or dumpsters shall be coordinated with the Contracting Officer or designated Government representative. The plan shall also address safety measures and record keeping. No work shall commence until the plan has been submitted and approved.

1.7.1.7. Waste Management Plan; G

The Contractor shall submit a waste management plan within 30 days after the notice to proceed for Government review. The Contractor shall identify all potential waste streams including any Construction and Demolition (C&D) material and debris. All materials removed in the performance of this contract shall become the property of the Contractor. All disposal locations shall be properly permitted and commercially available for disposal of solid waste. The plan shall include details for how all solid waste generated in the performance of this contract will be handled and disposed of offsite in accordance with Federal, State and Local regulations. Revise and resubmit Plan as required by the Contracting Officer or designated representative. Approval of Contractor's Plan will not relieve the Contractor of responsibility for compliance with applicable environmental regulations.

1.7.2. Product Data Submittals

For all proposed materials to be furnished under this contract the Contractor shall furnish manufacturer’s descriptive literature or catalog cuts, illustrations, specifications, certificates, manufacturer’s instructions, and other data to show the proposed materials meet the specified requirements. All appropriate descriptive data shall be clearly indicated on the submittal.

The material submittals for the proposed work which are to be submitted for Government review at a minimum are as follows:

Window and Frame; G Carpet; G Vinyl Composition Tile; G Wall Base; G Transitions; G Acoustic Ceiling Tiles; G Paint; G Gypsum Board; G Joint Compound; G Joint Tape; G Adhesives; G Light Fixtures; G MC Cable; G Dimmable Switches; G Outlets; G Junction Boxes; G

1.7.3. Sample Submittals; G

The Contractor shall provide a selection of carpet and vinyl composition tile samples for review and approval by the Government prior to installation. The samples must be representative of the proposed materials, including color, texture, and pattern, and should meet the project specifications. The Contractor is responsible for ensuring that the samples are delivered in a timely manner to allow for proper review and approval. The final selection of carpet will be subject to approval by the Government.

1.7.4. SD-11 Closeout Submittals

1.7.4.1. Warranty of Construction; G

The Contractor shall provide a one-year service warranty from the date of final acceptance against defects in workmanship. The Contractor shall also provide the manufacturer’s standard warranties for defects in parts and materials for items such as light fixtures and windows as applicable.

1.7.4.2. Solid Waste Management Records; G

Maintain records to document the quantity of waste generated; the quantity of waste diverted through sale, reuse, or recycling; and the quantity of waste disposed by landfill or incineration. All manifests and shipping documents are required to be submitted to the Contracting Officer or designated representative within 7 calendar days of the waste pick-up.

1.8. COORDINATION MEETING AND POINTS OF CONTACT

Prior to commencement of any work being performed on site, the Contractor shall participate in a Pre-work Meeting with the Administrative Contacting Officer (ACO) and the Neville Island Area Office Resident Engineer:

Administrative Contracting Officer (ACO) – Matthew McKissick, 412-395-7682, matthew.t.mckissick@usace.army.mil

Resident Engineer (RE) – Brian Farmer, 412-395-7679, brian.m.farmer@usace.army.mil

1.9. PROJECT AND SITE CONDITIONS

1.9.1. Work Areas

The work area is located in an active office space. The Contractor shall be fully responsible for determining the methods used to complete the work required under this contract including the transport and storage of materials and equipment to and from the work areas as well as the removal of waste materials from such spaces. The contractor shall perform all work in a manner that minimizes disruption to the office environment and personnel. The Contractor should maintain a clean and organized workspace throughout the course of the work.

1.9.2. Work Constraints

Unless otherwise approved by the ACO, work throughout the building with the exception of the office spaces adjacent to the demolition of the interior partition wall and the installation of the new window and frame shall be completed within 30 calendar days upon commencement.

1.9.3. Time of Performance

The Contractor shall confine all operations at the work site between the hours of 7:00 AM and 5:00 PM, Monday through Friday. Work will not be permitted on weekends or Federal holidays unless otherwise approved.

1.9.4. Period of Performance

All work under this contract shall be completed no more than 120 calendar days after receipt of Notice to Proceed.

1.10. PROTECTION OF GOVERNMENT PROPERTY

The Contractor shall protect all Government property during the performance of this contract.

All damage to existing Government property as a result of the Contractors work shall be repaired or replaced to the satisfaction of the Contracting Officer.

1.11. PROTECTION OF PERSONNEL

The Contractor shall ensure that adequate measures are in place to protect workers and mailto:matthew.t.mckissick@usace.army.mil mailto:brian.m.farmer@usace.army.mil personnel, including building occupants, from injury due to the operations being performed. All protective measures comply with the most recent edition USACE EM 385-1-1.

1.12. SECURITY REQUIREMENTS

1.12.1. Suspicious Activity Reporting Training

The Contractor and all associated sub-contractors shall receive an iWatch/or/Corps Watch briefing/training on suspicious activity reporting program. This training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the project manager, security representative or law enforcement entity.

This training shall be completed by all contractor and subcontractor employees prior to beginning work on-site. The training can be found at the following website:

https://www.mepcom.army.mil/Home/Contractors.aspx and results should be submitted to the COR Contracting Officer or their Designated Representative not later than five calendar days after the completion of the training.

1.12.2. Access and General Protection and Security Policy and Procedures

The Contractor and all associated subcontractors' employees shall comply with applicable installation, facility, and area commander installation and facility access and local security policies and procedures (provided by the Government Representative). As a minimum, a valid state driver's license or other government-issued photo identification card is required for positive identification while on-site. The Contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by the installation the USACE Security Office. The Contractor workforce must comply with all personal identity verification requirements as directed by DoD, HQDA, and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in Contractor security matters or processes. The Contractor must submit the full name, Social Security Number, Date of Birth, and Place of Birth for all associated Contractor or subcontractor employees to the USACE Security Specialists Ivan Russell, 412-395-7591, ivan.r.russell@usace.army.mil and Pat Geiger, 412-395-7643, walter.p.geiger@usace.army.mil. The District retains the right to deny any Contractor and subcontractor employee from working on one of its contracts based on final background investigation results.

1.12.3. Instant Verification of Employee Eligibility (E-Verify)

The Contractor must pre-screen Candidates using the E-verify Program (http://www.uscis.gov/e verify) website to meet the established employment eligibility requirements. The Vendor must ensure that the Candidate has two valid forms of Government issued identification prior to ensure the correct information is entered into the E-verify system. The list of verified/eligible candidates shall be provided to the COR prior to the start of work.

1.13. DELIVERY, STORAGE, AND HANDLING

https://www.mepcom.army.mil/Home/Contractors.aspx mailto:ivan.r.russell@usace.army.mil

Materials shall be delivered to the project site in an undamaged condition. Care shall be taken in handling and hoisting the materials during transportation and at the job site. The materials shall be stored out of contact with the ground, under a weathertight covering, to prevent damaging the materials. Damaged materials shall be repaired to an "as new" condition as approved by the ACO. If the materials cannot be repaired, new units shall be furnished at no additional cost to the Government.

2. MATERIAL

2.1. ALUMINUM CASEMENT WINDOW

Provide operable aluminum casement window and screen with Low-E glass, including frames, hardware, and accessories to match existing and meet the following requirements:

2.1.1. Performance requirements:

• Product type: Top hinged projected awning window, aluminum, thermal barrier construction, window types include Awning (AP) and Top Hinged (TH)

• Performance class: NAFS Class AW and Performance Grade PG 80 meeting project wind loads and serviceability.

o Air infiltration: ≤ 0.10 cfm/ft² at 1.57 psf.

o Water penetration: No leakage at test pressure ≥ 15%–20% of design pressure.

o Uniform structural load: Meet positive/negative design pressures with appropriate safety factors.

o Thermal performance: Whole window U factor ≤ 0.20 Btu/hr·ft²·°F; SHGC ≥ 0.20

2.1.2. Window Construction

• Frames and sashes: 6063-T5/T6 aluminum alloy extrusions; mechanically joined corners, sealed and reinforced; profiles per shop drawings.

• Thermal barrier: Continuous poured-and-debridged or structural polyamide thermal break in frames and sashes.

• Glazing provisions: Factory-prepared glazing pockets, setting blocks, heel beads, removable stops/snap beads; back-bed/surface glazing tapes and sealants compatible with IG units and finishes.

• Drips and weeps: Integral exterior drips and internal drainage/weep system at sills;

concealed pathways to exterior; insect-resistant weep covers where applicable.

2.1.3. Hardware and Operators

• Hinges: Stainless steel top hinges for awning operation; friction-adjustable to hold sash in any position within design range.

• Operator: Concealed or surface crank operator; alternatively, pole or mechanical operator where indicated (UFGS allows pole, extension crank, or mechanical operators).

• Locks: Multi-point cam/espagnolette locks for uniform gasket compression; interior handle with tamper-resistant fasteners where required.

• Limit devices: Provide opening limiters and egress hardware where scheduled; restrict maximum sash projection per code and design wind loads.

• Fasteners: Stainless steel or corrosion-resistant, isolated from dissimilar metals; match finish where exposed.

2.1.4. Weatherstripping

• Continuous replaceable bulb and fin seals around sash perimeter; dual durometer or equal to achieve specified air/water performance.

2.1.5. Glass and Glazing

• Units: Factory or field-glazed insulating glass units, nominal 1 inch OA unless noted;

low-E coated; warm-edge spacer; gas fill as scheduled.

• Safety/impact: Tempered or laminated where required by code or windborne-debris criteria.

• Performance: Meet scheduled U-factor, SHGC, VT; conform to IG certification program requirements.

2.1.6. Screens

• Insect screens: Aluminum frames with removable fastenings; mesh type; fiberglass, exterior.

2.1.7. Finishes

• Anodic coating: Class I clear or color anodize meeting recognized anodic finish standards; thickness per Class I requirements.

• Organic coating: Factory-applied high-performance fluoropolymer (70% PVDF) system, color selected by ACO.

2.1.8. Accessories

• Anchors and brackets: Manufacturer-standard anchors compatible with substrate; provide thermal isolators at dissimilar materials.

• Sealants and tapes: As recommended by window and glazing manufacturers;

low-modulus, non-staining.

• Sash poles/extension cranks: Provide where required for high or inaccessible windows.

2.2. CARPET TILE

Provide carpet tiles to meet the following requirements:

• Type: Commercial-grade modular carpet tiles.

• Construction: Tufted or woven.

• Fiber: Solution-dyed nylon or equivalent for durability and stain resistance.

• Backing: PVC-free thermoplastic or hardback for dimensional stability.

• Size: 24 inches by 24 inches (standard size).

• Pile Weight: Minimum 20 oz./sq. yd.

• Performance:

o Flammability: Pass ASTM D2859.

o Critical Radiant Flux: ≥ 0.45 W/cm² (ASTM E648, Class I).

o Smoke Density: ≤ 450 (ASTM E662).

o Static Resistance: ≤ 3.5 kV (AATCC 134).

• Adhesive: Use Manufacturer-recommended low-VOC, pressure-sensitive adhesive for modular carpet tiles adhesive compatible with subfloor moisture levels up to 85% relative humidity (RH).

2.3. VINYL COMPOSITION TILE (VCT)

Provide vinyl composition tile and accessories are to meet the following requirements:

• Comply with ASTM F1066 (latest edition).

• Thickness typically 1/8 inch (3.2 mm).

• Wear layer/color fastness suitable for intended use.

• Provide asbestos-free materials.

• Provide products certified for low VOC emissions (FLOORSCORE, UL 2818, or equivalent).

• Provide wall base, transition moldings, and adhesives as required matching VCT

• Use adhesives suitable for VCT recommended by the tile manufacturer.

• Adhesives must meet low VOC emission requirements and be compatible with substrate and tile.

2.4. RESILIENT BASE AND ACCESSORIES

Provide resilient base and accessories are to meet the following requirements:

• Type: ASTM F1861, Type TV (thermoplastic vinyl) or TP (thermoplastic rubber), Group 1 (solid) or Group 2 (layered)

• Height: 102 mm (4 in)

• Thickness: 3.2 mm (1/8 in) nominal

• Profile: Cove toe with integral radius ≥ 3 mm (1/8 in)

• Finish: Smooth, color as selected by ACO

• Performance Requirements

º Flame Spread: ≤ 25; Smoke Developed: ≤ 450 (ASTM E84) º VOC Content: ≤ 50 g/L for adhesives and sealants

• Corners: Preformed inside and outside corners or field mitered

• Adhesive: Low VOC, water resistant, manufacturer recommended for substrate type

• Sealant: ASTM C920, color matched, low VOC

2.5. ACOUSTIC CEILING TILES

Provide acoustic ceiling tiles to match existing as indicated and are to meet the following requirements:

• Type: Lay-in acoustical ceiling tiles.

• Material: Mineral fiber or fiberglass, as specified.

• Size: 24 inches by 24 inches

• Edge Profile: Square

• Provide hold-down clips to secure tiles in areas subject to wind or vibration.

º Noise Reduction Coefficient (NRC): Minimum 0.70.

º Ceiling Attenuation Class (CAC): Minimum 35.

º Light Reflectance (LR): Minimum 0.80.

º Flame Spread: Class A per ASTM E1264.

2.6. GYPSUM BOARD

2.6.1. Gypsum Board

• Regular: ASTM C36/C36M and C1396/C1396M; 48-inch wide ½ inch; tapered edges

2.6.2. Joint Treatment Materials

• ASTM C475/C475M. Product must be low emitting VOC types with VOC limits not exceeding 50g/L. Provide data identifying VOC content of joint compound.

2.6.3. Screws:

• ASTM C1002 and ASTM C954 for steel framing.

2.6.4. Adhesives

• Type for gypsum-to-metal application; adhesives must meet low VOC requirements

2.7. PAINT

• Primers, intermediates, topcoats: MPI rated products; matched for substrate type (e.g., drywall, metal, wood).

• Interior wall systems (e.g., offices, corridors) typically include:

º Primer (e.g., wallboard primer) º Semi-gloss or eggshell enamel topcoat

º Low VOC.

2.8. LED TROFFERS

Provide resilient base and accessories are to meet the following requirements:

• Type: Recessed, lay in or grid mount LED troffers for T bar ceilings

• Sizes: 1'×4' and 2'×4' as scheduled

• Housing: Cold rolled steel or aluminum, powder coat finish

• Optics: Low glare diffusers or lenses; UGR ≤ 19 in offices; uniform illumination without visible LED pixelation

• Performance:

º Efficacy ≥ 120 lm/W º L70 ≥ 50,000 hours at 25 °C ambient (per TM 21) º CRI ≥ 80 (≥ 90 in lobbies if specified)

º CCT: 3500 K or 4000 K as scheduled

• Electrical:

º Universal voltage (120–277 V) drivers, UL 8750 compliant º Power factor ≥ 0.90, THD ≤ 20% º Continuous dimming to 10% or lower via 0–10 V or digital protocol

• Listings: UL 1598, FCC Part 15 Class A/B

• Emergency: Integral LED emergency driver or connection to building emergency circuit.

3. EXECUTION

3.1. DEMOLITION

3.1.1. GENERAL

Remove gypsum board, furrings, and rigid foam in the office receiving the widow. Remove the portion of the concrete masonry unit wall that is required to install the window.

Remove the wall base and carpeting to include removal of old adhesives and carpet padding.

Remove fluorescent light fixtures in corridors, reception/administrative area, offices, conference room, kitchenette, file storage room, copy storage room, and vestibules. Recycle scrap metal as part of demolition and deconstruction operations. Provide separate containers to collect scrap metal and transport to a scrap metal collection or recycling facility.

3.2. INSTALLATION

3.2.1. BUILDING CONSTRUCTION MATERIALS

Do not install building construction materials that show visual evidence of biological growth.

3.2.2. GYPSUM BOARD

3.2.2.1. Framing & Furring

Verify that framing and furring are securely attached and of sizes and spacing to provide a suitable substrate to receive gypsum board. Do not proceed with work until framing and furring are acceptable for application of gypsum board.

3.2.2.2. Application of Gypsum Board

Apply gypsum board to framing and furring members in accordance with ASTM C840 or GA 216 and the requirements specified. Apply gypsum board with separate panels in moderate contact; do not force into place. Stagger end joints of adjoining panels. Neatly fit abutting end and edge joints. Use gypsum board of maximum practical length; select panel sizes to minimize waste. Cut out gypsum board to make neat, close and tight joints around openings.

In vertical application of gypsum board, provide panels in lengths required to reach full height of vertical surfaces in one continuous piece. Layout panels to minimize waste; reuse cutoffs whenever feasible. Secure gypsum board with fasteners 1 inch in from the top and bottom and at a minimum every 12 inches in between.

3.2.2.3. Finishing of Gypsum Board

Tape and finish gypsum board in accordance with ASTM C840, GA 214 and GA 216. Finish all gypsum board walls, partitions and ceilings to Level 5 in accordance with GA 214.

Provide joint, fastener depression, and corner treatment. Tool joints as smoothly as possible to minimize sanding and dust. Do not use self-adhering fiber glass mesh tape with conventional drying type joint compounds; use setting or hardening type compounds only.

Protect workers, building occupants, and HVAC systems from gypsum dust.

3.2.2.4. Uniform Surface

Wherever gypsum board is to receive eggshell, semi-gloss or gloss paint finish, or where severe, up and down lighting conditions occur, finish gypsum wall surface in accordance with GA 214 Level 5. In accordance with GA 214 Level 5, apply a thin skim coat of joint compound to the entire gypsum board surface, after the two-coat joint and fastener treatment is complete and dry.

3.2.3. ACOUSTICAL CEILINGS TILES

Install acoustical units in accordance with the approved installation instructions of the manufacturer. Ensure that edges of acoustical units are in close contact with metal supports, with each other, and in true alignment. Arrange acoustical units so that units less than one-half width are minimized. Hold units in exposed-grid system in place with manufacturer's standard hold-down clips, if units weigh less than 1 psf or if required for fire resistance rating.

3.2.4. CARPET TILES

3.2.4.1. Surface Preparation

Do not install carpet tiles on surfaces that are unsuitable and will prevent a proper installation. Prepare subfloor in accordance with flooring manufacturers’ recommended instructions. Repair holes, cracks, depressions, or rough areas using material recommended by the carpet or adhesive manufacturer. Before beginning work, test subfloor with glue and carpet to determine “open time” and bond. Submit a copy of the manufacturer’s Installation instructions for the carpet tile, including the Surface Preparation and recommended adhesives and tapes. Prepare the concrete surfaces in accordance with the carpet tile manufacturer's instructions.

3.2.4.2. Carpet Tile Installation

Perform all work by manufacturer's approved installers. Conduct installation in accordance with the manufacturer's printed instructions. Protect edges of carpet meeting hard surface flooring with molding and install in accordance with the molding manufacturer's printed instructions. Follow ventilation, personal protection, and other safety precautions recommended by the adhesive manufacturer. Continue ventilation during installation and for at least 72 hours following installation. Do not permit traffic or movement of furniture or equipment in carpeted area for 24 hours after installation. Complete other work which would damage the carpet prior to installation of carpet.

Apply adhesive uniformly to the subfloor in accordance with manufacturer’s instructions Allow adhesive to cure as recommended before placing tiles.

Install carpet tiles with adhesive and snug joints. Use monolithic installation method.

Comply with manufacturer installation instructions for required drying time of releasable adhesive so it sets up properly. Provide accessibility to the subfloor where required.

Apply adhesive uniformly to the subfloor in accordance with manufacturer’s instructions Allow adhesive to cure as recommended before placing tiles.

3.2.5. MOLDING

3.2.5.1. Surface Preparation

Do not install molding on surfaces that are unsuitable and will prevent a proper installation.

Prepare substrate in accordance with flooring manufacturers’ recommended instructions.

Repair holes, cracks, depressions, or rough areas using suitable material for the substrate.

Before beginning work, test substrate with glue and molding to determine “open time” and bond. Submit a copy of the manufacturer’s installation instructions for the molding, including the surface preparation, seaming techniques, and recommended adhesives.

3.2.5.2. Cove Base Installation

Install cove base molding smooth, uniform and secure, with a minimum of seams and flush to the carpet. Corners shall be tight without signs of distress. Terminations with be square, clean and tight against door and opening moldings. Cove base molding will be installed in accordance with manufacturers’ instructions.

3.2.6. PAINT

Remove dirt, loose particles, grease, oil, disintegrated coatings, and other foreign matter and substances deleterious to coating performance as specified for each substrate before application of paint or surface treatments. Scrub previously painted surfaces with solvent-based coatings, clean with a clean, dry cloth saturated with mineral spirits or paint thinner, ASTM D235. Allow surface to dry. Wiping shall immediately precede the application of the first coat of any coating, unless specified otherwise. Damaged areas such as, but not limited to, nail holes, cracks, chips, and spalls shall be repaired with suitable material to match adjacent undamaged areas. The requirements specified are minimum. Comply also with the application instructions of the paint manufacturer.

Apply interior wall color to the entire wall surface, including reveals, vertical furred spaces and columns, grilles, diffusers, electrical and access panels, and piping and conduit adjacent to wall surfaces unless otherwise specified. Paint items not specified in other paragraphs to match adjacent wall surface.

3.2.7. WALL REPAIR

Select studs for straightness and set plumb, true, and in alignment. Sizes of studs must be 2

in. and spacing of studs must be 16 in. Toe-nail studs to sills or sole plates with four 8-penny nails or fasten with metal nailing clips or connectors. Anchor studs abutting concrete or masonry walls thereto near the top and bottom and at mid-height of each story using expansion bolts or powder-actuated drive studs.

Nail panels with 6-penny nails spaced 150 mm 6 inches o.c. along edges of the panel and 300 mm 12 inches over intermediate supports. Keep nails 3/8 inches away from panel ledges.

Provide 2 by 4 blocking for horizontal edges not otherwise supported.

3.2.8. FURRING

Select studs for straightness and set plumb, true, and in alignment. Sizes of studs must be 2

in. and spacing of studs must be 16 in. Anchor studs abutting concrete or masonry walls thereto near the top and bottom and at mid-height of each stud using expansion bolts or concrete masonry screws and construction adhesive.

3.2.9. WINDOW INSTALLATION

Submit the elevations of the window, size of window and frames, metal gages, details of windows and frame construction, methods of anchorage, glazing details, weather stripping, provisions for and location of hardware, and details of installation.

3.2.9.1. Method of Installation

Install in accordance with the window manufacturer’s printed instructions and details. Build in windows as the work progresses or install without forcing into prepared window openings.

Set windows at proper elevation, location, and reveal; plumb, square, level, and in alignment;

and brace, strut, and stay properly to prevent distortion and misalignment. Protect ventilators and operating parts against accumulation of dirt and building materials by keeping ventilators tightly closed and locked to frame. Bed screws or bolts in sill members, joints at mullions, contacts of windows with sills, built-in fins, and subframes in mastic sealant of a type recommended by the window manufacturer. Install and caulk windows in a manner that will prevent entrance of water and wind. Fasten insect screens securely in place.

3.2.9.2. Dissimilar Materials

Where aluminum surfaces are in contact with, or fastened to masonry, concrete, wood, or dissimilar metals, except stainless steel or zinc, protect the aluminum surface from dissimilar materials as recommended in the Appendix to AAMA/WDMA/CSA 101/I.S.2/A440. Do not coat surfaces in contact with sealants after installation with any type of protective material.

3.2.9.3. Anchors and Fastenings

Make provision for securing units to each other and to other adjoining construction.

3.2.9.4. Adjustments After Installation

After installation of windows and completion of glazing and field painting, adjust all ventilators and hardware to operate smoothly and to provide weathertight sealing when ventilators are closed and locked. Lubricate hardware and operating parts as necessary.

Verify that products are properly installed, connected, and adjusted. Finish the area around the window to normal construction standards.

3.2.10. GLAZING

3.2.10.1. Preparation

Preparation, unless otherwise specified or approved, shall conform to applicable recommendations in the GANA Glazing Manual, GANA Sealant Manual, IGMA TB-3001, IGMA TM-3000, and manufacturer’s recommendations. Determine the sizes to provide the required edge clearances by measuring the actual opening to receive the glass. Grind smooth in the shop glass edges that will be exposed in finish work. Leave labels in place until the installation is approved, except remove applied labels on heat-absorbing glass and on insulating glass units as soon as glass is installed. Securely fix movable items or keep in a closed and locked position until glazing compound has thoroughly set.

3.2.10.2. Glass Setting

Shop glaze or field glaze items to be glazed using glass of the quality and thickness specified or indicated. Glazing, unless otherwise specified or approved, shall conform to applicable recommendations in the GANA Glazing Manual, GANA Sealant Manual, IGMA TB-3001, IGMA TM-3000, and manufacturer’s recommendations. Aluminum windows may be glazed in conformance with one of the glazing methods described in the standards under which they are produced, except that face puttying with no bedding will not be permitted. Handle and install glazing materials in accordance with manufacturer’s instructions. Use beads or stops which are furnished with items to be glazed to secure the glass in place. Verify products are properly installed, connected, and adjusted.

3.2.10.3. Insulating Glass Units

Do not grind, nip, or cut edges or corners of units after the units have left the factory.

Springing, forcing, or twisting of units during setting will not be permitted. Handle units so as not to strike frames or other objects. Installation shall conform to applicable recommendations of IGMA TB-3001 and IGMA TM-3000.

3.2.10.4. Installation of Laminated Glass

Windows which are to receive laminated glass shall be weeped to the outside to allow water drainage into the channel.

3.2.11. Electrical Work

Electrical installations must conform to IEEE C2, NFPA 70, and to the requirements specified herein. Install luminaires and lighting controls to meet requirements of ASHRAE

90.1 – IP and ASHRAE 189.1. To encourage consistency and uniformity, install luminaires of the same manufacturer and model number.

Telecommunications and electrical outlets located in partition wall to be demolished are to be relocated to the newly constructed gypsum board wall. Rewire lighting in office spaces adjacent to the demolished partition wall to be operated by a single, dimmable LED switch. A blank cover plate is to be installed at the location of the abandoned double gang box. New junction boxes and MC cable are to be provided as necessary. New outlets and cover plates are to match the existing. Location of all switches and outlets are to be determined by a designated Government representative.

3.2.11.1. Luminaires

Set luminaires plumb, square, and level with ceiling, in alignment with adjacent luminaires and secure in accordance with manufacturers’ directions. Installation must meet requirements of NFPA 70. Recessed and semi-recessed luminaires must be independently supported from the building structure by a minimum of four wires, straps or rods per luminaire and located near each corner of the luminaire. Ceiling grid clips are not allowed as an alternative to independently supported luminaires. Luminaires installed in suspended ceilings must also comply with the requirements of ACOUSTICAL CEILINGS.

3.2.12. Cleaning

All surfaces shall be cleaned of all foreign matter to present a neat appearance. Stained, discolored, or damaged materials that cannot be restored to their original condition shall be replaced with new materials. All smears and other unsightly marks shall be removed. Upon completion of project, all surfaces shall be washed clean.

3.2.13. Disposal

All materials removed in the performance of this contract and not reused shall become the property of the Contractor and be disposed of offsite in accordance with Federal, State and Local regulations.