SOW_2019_02_04.pdf

Perform Maintenance of Facility Facade Hruska Federal Courthouse 20190204

Perform Maintenance and Repair of Facility Façade North Elevation

SECTION: SUMMARY OF WORK

The Contractor shall furnish all necessary labor, material, equipment, and supervision to perform required maintenance and repair of the Hruska Federal Courthouse Facility Façade at 111 S 18th Plaza, Omaha, NE 68102.

SECTION: CONTRACT AUTHORITY

A. Contracting Officer (CO). The CO has the responsibility for the administration of this contract. The CO alone, without delegation, is authorized to take action on behalf of the Government to amend, modify or deviate from the contract terms, conditions, requirements, specifications, details and/or delivery schedules. However, the CO may delegate certain other responsibilities to authorized Government representatives.

B. Contracting Officer's Representative (COR). The COR shall be appointed by letter from the CO.

The CO uses CORs are the primary Government representatives for the administration of the contract. CORs shall have proper training and experience in inspecting contracts, but do not have the authority to modify the contract.

SECTION: REQUIREMENTS

Contractors shall visit the site and perform a thorough site inspection. The contractor shall inspect the site to become familiar with the existing conditions relating to the work to be performed and the difficulties and restrictions to the work to be performed. Contractor shall assure prior to bidding that they are confident and in complete understanding of all requirements associated with this scope of work. The contractor shall notify the CO/COR of any conditions that prevent the suitable completion of these requirements. All work shall be performed in accordance with attached specifications.

The work includes, but is not limited to the following:

1. Brick Masonry

a. Contractor shall survey and identify brick to be replaced. Deficient brick includes the following:

i. Unit cracking

ii. Linear cracking through the masonry walls

iii. Brick spalling

iv. Non-compatible brick replacements

v. Previous crack repairs

b. Contractor shall replace identified brick with new brick that matches the existing brick in color, size, and surface texture.

i. Contractor shall install replacement brick in the same bonding and coursing pattern as the existing brick with filled bed, head and collar joints.

ii. Tool joints to match those of surrounding existing brickwork.

Final

c. Repair previously repaired cracks

i. Repair in accordance with para 4 Sealant Joints.

ii. Remove existing sealants and make fresh repair to assure all sealant is on the same replacement cycle.

d. Repair vertical cracking at the corners of the rooftop penthouses.

i. Install vertical expansion joints within three feet of the corners where they do not otherwise exist, and where expansion joints are further than 10’ from the corner.

1. Route out the crack ¼” full depth of the brick.

2. Install backer rod and sealant in accordance with para 4 Sealant Joints.

e. Submit Brick for Approval

i. Contractor shall use a replacement brick that matches the existing brick in size, shape, color, and surface texture.

ii. Existing brick are Glen-Gery Corporation Limestone Blade Cut Modular Cored.

1. New bricks shall meet ASTM Designation C216-97 Type FBS.

2. Replacement Brick shall be approved by the government prior to installation.

2. Pre- Cast Concrete

a. Repair minor spalling along exposed concrete beams

i. Contractor shall patch concrete with a concrete patching material to match existing concrete in color, texture, and material properties.

1. Contractor shall prepare a mockup to demonstrate aesthetic effect and to set quality standards for material and execution in an inconspicuous area selected by GSA.

2. Patch material and finish shall be approved by the government prior to application.

3. Mortar Joints

a. Replace mortar where deteriorated or required for brick replacement

i. Remove mortar to a depth equivalent to 2 ½ times the joint width.

ii. Clean the joint to remove any loose or deleterious materials.

iii. Install new mortar.

1. Match existing mortar in color, texture, concave profile, strength, and mortar composition.

a. Conduct mortar analysis to determine original mortar strength and composition

2. Do not overcut head joints.

iv. Provide mortar removal and repointing mockups to demonstrate aesthetic effects, and to set quality standards for material and execution of repointing work.

1. Mockups shall be approved by the government prior to any mortar joint repairs.

4. Sealant Joints

a. Contractor shall replace 100 % of sealant joints throughout building facades.

i. Rip, cut, remove all existing sealant from façade.

1. Contractor shall assure that all sealant is removed in accordance with industry standards to provide a solid bonding surface for new sealant material.

ii. Provide new backer rod.

iii. Install new sealant using Corning 790 Silicone Building Sealant, or an approved equivalent complying with ASTM C1193.

1. Sealing includes, but is not limited to

a. Vertical and horizontal expansion joints

b. Around door and Window openings

c. Lintel Bearings

i. When replacing sealant at Lintel bearings, review condition of the steel. Clean rust from the exposed steel and paint with a government approved anti rust paint prior to resealing the joints.

d. All Skyward facing masonry joints

2. Sealant shall not be smeared over the face of the adjacent bricks or metal window and door frames.

3. Replace weeps in expansion joints prior to sealing as needed.

iv. Sealant shall be custom color matched to the original sealant color and tooled to provide a clean concave joint profile.

v. Contractor shall provide a mockup for sealant installation. Mockup shall demonstrate aesthetic effects (color, joint profile) and to set quality standards for material and execution of sealant work.

5. Windows and Curtainwalls

a. Contractor shall replace 100% of window gaskets.

i. Gaskets at windowsill frames at curtain walls and aluminum-framed windows shall be removed and replaced.

1. New gaskets shall be replaced in a “crowded” manner to account for shrinkage.

2. Gaskets shall be installed between the glazing and cover plate/pressure plate assemblies.

3. Clean windows post installation.

6. Façade Soiling and Staining

a. Contractor shall Perform a general cleaning of 100% of the building façade. The four main types of soiling and staining on the facade include atmospheric soiling, efflorescence, metallic staining, and melted air barrier.

i. Contractor shall scrub surfaces with medium-soft natural bristle brushes to dislodge heavier soiling.

ii. Apply chemical cleaners to remove metallic staining.

iii. Remove melted air barrier membrane through manual removal and chemical cleaners.

b. Contractors shall prepare mockups for each type of soiling and staining in an inconspicuous area approved by GSA.

i. Test cleaners for adverse reactions

1. Begin with milder cleaner working up to stronger chemical cleaners taking care not to damage masonry surface.

ii. Allow for a waiting period of a minimum of seven days to review outcomes of mockups.

iii. All Products shall be used in accordance with manufacturer’s recommendations.

iv. All Products shall be approved by the government prior to usage.

v. Cleaning products shall conform with Green Seal (GS-37), or EcoLogo (UL

2759), or EPA Safer Choice (formerly Design for the Environment)

7. Additional Requirements

a. Pedestrian Control

i. Contractor is responsible for all aspects of pedestrian control for execution of all requirements associated with this project.

ii. Within two weeks of award, contractor shall submit for approval a pedestrian control plan to GSA.

1. Pedestrian control plan should address at a minimum the following:

a. Sidewalk detour points

b. Proposed closure equipment (Barriers, signs, etc)

c. Closure schedules

d. Coordination with facility manager

b. Permits

i. Contractor is responsible for coordinating and acquiring any permits for any road

(lane) closures that may be necessary during performance.

c. Safety Plan

i. Contractor is responsible for assuring safe performance of the work associated with this requirement.

ii. Within two weeks of award, contractor shall submit for review a performance safety plan addressing, but not limited to, the following information.

1. Proposed equipment (manlift, swing staging, etc.)

a. Training, inspection, etc.

2. Competent person onsite / supervisor

3. Personal Protective Equipment

d. Safety Data Sheets

i. Contractor shall keep on site and provide to the COR upon request safety data sheets for any product used in the performance of this requirement.

Final

SECTION: BASE BID

I. North Elevation

A. Contractor shall provide a base bid for all items listed in Section labeled: “Requirements” for the North Elevation of the facility.

B. The following quantities are for reference. Contractor is ultimately responsible for identification of quantities based on existing conditions.

1. Replace Cracked Brick 52 EA

2. Repair Mortar Joints 101 LM

3. Sealant Joints 560 LM

4. Replace Window Gaskets 240 LM

5. Cleaning Efflorescence 9 SM

6. Cleaning Atmospheric 362 SM

7. Cleaning Metallic 10 SM

8. Cleaning General 2190 SM

C. Price proposal for the base bid shall be submitted as standalone pricing.

SECTION: ADDITIONAL UNIT PRICING

I. Contractor shall provide unit pricing for the following. Price submittal shall be per defined unit as follows

a. Replace Brick Each

b. Repair Mortar Joint Linear Foot

c. Replace Sealant Linear Foot

d. Replace Gaskets Linear Foot

II. Additional unit pricing shall be valid for one year after date of proposal submission.

SECTION: PHOTO REFERENCES

North and East Elevations

Typical Atmospheric Soiling

Typical Cracking brick.

Typical Previous crack repair

Typical Gasket shrinkage

SECTION: SUPPLIES, MATERIALS AND EQUIPMENT.

Materials, supplies and equipment used shall be commercially available products of reputable manufacturer or suppliers and shall be approved by the COR prior to starting the work. The contractor shall not use any material which the COR determines would be unsuitable for any purpose.

SECTION: WORK RESTRICTIONS

CONTRACTOR USE OF PREMISES: During the construction period the Contractor shall limit use of the premises to the work area indicated, to allow for Government occupancy and public use. The following guidance shall be adhered to:

1. Prior to construction, provide a written list of employees and subcontractor employees that will be working within the building during the contract period to the COR.

2. Keep entrances serving the premises clear and available at all times to the Government, Government employees, and visitors. Do not use these areas for parking or storage of materials.

3. Schedule deliveries to minimize space and time required for storage of materials and equipment on site.

4. Take precautions to protect the building, its occupants, and the public during the construction period. The Contractor is responsible to provide all labor and materials for dust control, provide adequate barriers to prevent Government Employees or the public from entering the construction area, all signage indicating necessary requirements for entering the construction area, and any other precaution necessary to provide a safe environment for Contractor personnel, Government employees and the public.

5. Space on the premises shall be coordinated with the facility manager and COR for the Contractor’s storage and related activities. Contractor storage/staging shall not interfere with the operation of the Government.

6. Daily issuance of keys and / or key cards will be provided by an on-site GSA field office representative. Keys will only be issued to the General Contractor unless the General Contractor provides a list of sub’s authorized to sign for keys. Keys will only be issued to people that have received a favorable HSPD-12 security clearance. Keys must be returned to the GSA office daily.

7. Use of the loading dock facilities will be shared with Government activities on a first-come-first-served, wait-your-turn basis.

8. No apparatus with an open flame, grinding that creates sparks, or grinding that creates excessive dust is allowed to be used within the facility without prior receipt of a burn permit. Burn permits are required for each separate occurrence. Burn permits will be issued on a daily basis by a GSA representative and must be returned at close of business each day.

CONTRACT PERIOD: All work shall be completed within (60) calendar days of notice to proceed.

WORKING HOURS: Work shall be completed during normal working hours of 7 a.m. & 4 p.m. Monday through Friday. After hours work may be approved by the COR.

All work shall be scheduled through the COR at a minimum of two weeks in advance. Work shall be performed in a manner to avoid disruption of court proceedings. Contractor shall submit a comprehensive schedule/phasing plan within two weeks of award for approval by the COR prior to the commencement of any performance related activities.

SECTION: SECURITY CLEARANCE

All personnel performing work under the Contract on the Project site must obtain an Enter on Duty (EOD) determination before they will be granted access to the site. Refer to the Construction Contract Agreement Section III, Terms and Conditions, for HSPD-12 suitability investigation requirements for Contract employees requiring access to the facility. Contractor will be required to provide a designated point of contact for all security related processing. It is encouraged that the designated point of contact to attend clearance processing online meeting (1.5hrs) for instructions on processing clearances.

SECTION: SUBMITTALS AND SUBSTITUTIONS

SUBMITTALS: Contractor shall provide submittals to the COR for approval within 10 days after receiving notice to proceed. No work shall proceed until submittals are approved by the COR. The Contractor shall submit for review to the COR prior to demolition, purchase, fabrication, or installation of materials.

1. Construction Schedule, including:

a. Lead time for materials

b. Task with start, stop & duration

c. Description of work

d. Impact to tenants (work area access)

2. Waste Management Plan

3. Replacement Brick

4. Mortar

5. Sealant

6. Chemical Cleaners

7. Concrete Patch Material

PRODUCT SUBSTITUTIONS: For all items listed with a Brand Name or Equal, refer to FAR 52.211- 6 Brand Name or Equal. An Offeror who proposes to submit a quote based on an alternate or substitute construction material shall provide a sample of the alternate material with cut sheets, warranty, maintenance data, and sufficient technical information to ensure the material meets all salient characteristics of the building materials specified in this specification with their quote. The alternate or “equal” material information and material sample must be provided on or before the due date of the Request for Quote

(RFQ).

SECTION: QUALITY REQUIREMENT

All work performed to accomplish the work specified herein shall be in strict compliance with the manufacturers’ written recommendations and all nationally or locally recognized governing bodies. Qualified installers shall install each category of work. Contractor shall without additional expense to the Government, be responsible for obtaining any necessary licenses and permits, and for complying with any Federal, State, and municipal laws, codes and regulations applicable to the performance of this work. If two codes are in conflict, the most stringent will be applied.

All work to be performed under this contract shall be executed in a careful and orderly manner by workmen skilled in their respective trades or class of work. The work shall consist of furnishing and installing all new work and doing all necessary removing, patching, filling-in, repairing, and altering of existing work specified to be performed. The materials and methods of application for new work and for patching, filling-in, and repairing shall be similar and equal quality in its new state and shall be installed in compliance with standard trade practices.

All work shall be completed in compliance with Building Standards. Lists of Building Standards are available in the Field Office upon request.

SECTION: TEMPORARY FACILTIES AND CONTROLS

UTILITY SHUTDOWN: All utility (electrical, water, sanitary, sprinkler, or HVAC) shutdowns must be scheduled with the COR, at a minimum of seventy-two (72) hours in advance, and may be required to be completed after hours.

SECTION: EXECUTION REQUIREMENTS

All work must be performed by the Contractor unless noted otherwise.

WORKMANSHIP STANDARDS: The Contractor shall ensure that personnel performing tasks required under this contract are skilled and knowledgeable in the methods and craftsmanship needed to produce journeymen level of workmanship. Remove and replace work that does not comply with workmanship specified and standards recognized in the construction industry for the applications indicated. Any work performed by the Contractor that is found to be faulty or fails to meet acceptable construction standards shall be removed and replaced by the Contractor at no additional cost to the Government.

1. Manufacturer's Instructions: Where installations include manufactured products, comply with manufacturer's applicable installation instructions and recommendations to the extent that those instructions and recommendations are more explicit or stringent than requirements contained in the Contract Documents.

2. Specialists: Where the individual sections of the specifications require specialists to perform the work, comply with the requirements specified. The assignment of a specialist shall not relieve the Contractor of installation in accordance with all manufacturers’ written instructions and all nationally or locally recognized governing bodies.

CLEAN-UP: The Contractor shall be responsible for removal and legal disposal of all debris created by the work specified herein from the premises. The Contractor shall clean up the immediate area on a daily basis and must keep the area safe at all times.

SECTION: CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

The Contractor shall use all practical means to divert waste from landfills by salvaging, recycling, or reusing demolition and construction materials.

Unless state or local regulations require a higher percentage, it is required to achieve end-of-Project rates for diversion of [50] percent by weight of total non-hazardous solid waste generated by the Work, unless additional rates are indicated. Practice efficient waste management in the use of materials in the course of the Work. Use all reasonable means to divert construction and demolition waste from landfills and incinerators.

Waste Management Plan: Submit plan within 14 days of date established for the Notice to Proceed, prepare and submit a Solid Waste Management Plan including, but not limited to, the following:

1. List of the recycling facilities, reuse facilities, municipal solid waste landfills and other disposal area(s) to be used. Include name, location, and phone number.

2. Identify materials that cannot be recycled or reused. Provide explanation or justification.

3. Distinguish between demolition and construction waste.

4. List each type of waste and whether it will be salvaged, recycled, or disposed of in landfill or incinerator.

Waste Management Report: Contractors are required to submit a monthly Waste Management Report, and a final Waste Management Report concurrent with request for Substantial Completion and payment. Waste Management Reports shall detail the amount of construction and demolition waste by material diverted and/or recycled as well as the amount sent to the landfill on the project. The Waste Management Reports must be accompanied with the Weight Records, Receipts, Disposal Records, Certificate of Reclamation/Recycling, etc.

Implement approved waste management plan. Provide handling, containers, storage, signage, transportation, and other items as required to implement waste management plan during the entire duration of the Contract.

DISPOSAL OF WASTE: Except for items or materials to be salvaged, recycled, or otherwise reused, remove waste materials from Project site and legally dispose of them in a landfill or incinerator acceptable to authorities having jurisdiction.

SECTION: CLOSEOUT

SUBSTANTAL COMPLETION is defined as that state when the Contractor has complied with the Contract Requirements, except for minor deviations, and the project is sufficiently complete and capable of being occupied and used by the Government for the intended purpose.

INSPECTION PROCEDURES: On receipt of the Contractor’s request for inspection, the COR will either proceed with the inspection or advise the Contractor of unfilled requirements. If the Contractor is aware of any unfilled requirements prior to the inspection, the Contractor shall provide a list of incomplete items with a reason work is not complete. The COR will notify the Contractor once the project is substantially complete. This does not relieve the Contractor from correcting all punch list items. The Government may withhold funds until all items included in the Contract have been successfully completed.

SECTION: RECORD DOCUMENTS

1. Warranty, including all labor and material, dated one year from substantial completion.

2. Waste Diversion Report.

FINAL CLEANING: Employ experienced workers or professional cleaners for final cleaning. Clean each surface or unit to the condition expected in a normal, commercial cleaning and maintenance program.

Comply with the manufacturer’s instructions. Remove all temporary protection or facilities installed for the protection of new work and all barriers erected around the construction area for dust control, noise, fall protection, or any other barrier that was required for construction.

SECTION: SUSTAINABLE PURCHASING AND SUBMITTALS

To simplify compliance with the Federal sustainable purchasing requirements set forth in FAR Parts 11 and 23, and GSAM 523, PBS has identified those products (“Key Sustainable Products” or “KSPs”) that are used most frequently in its contracts and developed sustainability standards for those products that meet all Federal requirements. The Contractor must show compliance with the KSP standards, where KSPs are furnished by the Contractor in performance of the work. If the Contractor cannot meet the requirements of this section due to price, performance or availability, the Contractor must supply the Contracting Officer with justification and documentation (i.e. price comparisons) and must have Contracting Officer’s approval prior to beginning work , i.e. using existing stock, cannot match product, document any cost difference, etc.

Where KSPs are provided by the Contractor, the Contractor must submit specific documentation of compliance with all applicable sustainable attributes. Acceptable documentation includes: manufacturer specification sheets; technical data sheets; product data sheets; environmental product declarations;

manufacturer submittal sheets; and manufacturer letters.

Key Sustainable Products are listed in the Green Procurement Compilation at https://sftool.gov/green-products/1037/key-sustainable-products?agency=9 and have been pre-certified. For these products, correctly-dated screenshots showing each applicable product on the list are sufficient. All non-KSP products must comply with baseline Federal standards, which are all listed in the “Green Procurement Compilation” at sftool.gov”.

The Contractor must submit compliance documentation to the Contracting Officer at the time designated in this Contract for submittals generally. If no other submittals are required as part of this Contract, the Contractor shall submit proof of KSP compliance at least 10 business days before the start of work. The Contractor shall send KSP submittals electronically where possible and the words “KSP product submittal” included in filenames. The Key Sustainable Products and associated standards are listed in the table below.

PBS Key Sustainable Products and Standards

Construction Products

Product Category Sustainability Standard

Nylon carpet NSF 140 Gold certification, and ≥ 10% post-consumer recovered content

Interior latex paint ≤ 50 grams per liter (g/L) VOCs post-tint (i.e. SCAQMD Rule 1113 standard)

Gypsum board Greenguard Gold certification

Acoustical ceiling tiles Meets the California Section 01350 standard for low-VOC materials, and Total recycled content ≥ 20%, and Recyclable in a closed loop process, and USDA BioPreferred, and Environmental Product Declaration (EPD) available

Concrete (ready-mix and site-mix)

15% fly ash, or 25% ground granulated blast-furnace (GGBF) slag https://sftool.gov/green-products/1037/key-sustainable-products?agency=9 https://sftool.gov/greenprocurement

UTILITY SHUTDOWN: All utility (electrical, water, sanitary, sprinkler, or HVAC) shutdowns must be scheduled with the COR, at a minimum of seventy-two (72) hours in advance, and may be required to be completed after hours.