W9128F24Q0087 - MRPO Asphalt Roof Replacement.pdf

COE MISSOURI RIVER PROJECT OFFICE

THOMAS E ALDMEYER

USAED, OMAHACENWO-OD-MR

9901 PERSHING DRIVE

OMAHA NE 68112-1547

TEL: 402-996-3757 FAX:

REQUEST FOR QUOTATIONS

(THIS IS NOT AN ORDER) 1

PAGE OF PAGES

1. REQUEST NO. 2. DATE ISSUED RATING

W9128F24Q0087 19-Aug-2024 5a. ISSUED BY

8. TO: NAME AND ADDRESS, INCLUDING ZIP CODE

IMPORTANT: This is a request for information, and quotations furnished are not offers. If you are unable to quote, please so indicate on this form and return it to the address in Block 5a. This request does not commit the Government to pay any costs incurred in the preparation of the submission of this quotation or to contract for supplies or services. Supplies are of domestic origin unless otherwise indicated by quoter. Any representations and/or certifications attached to this

Request for Quotations must be completed by the quoter.

11. SCHEDULE (Include applicable Federal, State, and local taxes)

ITEM NO.

(a)

SUPPLIES/ SERVICES

(b)

QUANTITY

(c)

UNIT

(d)

UNIT PRICE

(e) (f)

SEE SCHEDULE

AMOUNT

% No. %

NOTE: Additional provisions and representations [ ] are [ ] are not attached.

13. NAME AND ADDRESS OF QUOTER (Street, City, County, State, and ZIP Code)

14. SIGNATURE OF PERSON AUTHORIZED TO

SIGN QUOTATION

15. DATE OF

QUOTATION

16. NAME AND TITLE OF SIGNER (Type or print) (Include area code)

TELEPHONE NO.

AUTHORIZED FOR LOCAL REPRODUCTION STANDARD FORM 18 (REV. 6-95)

PREVIOUS EDITION NOT USABLE Prescribed by GSA FAR (48 CFR) 53.215-1(a)

THIS RFQ X[ ] IS [ ] IS NOT A SMALL BUSINESS SET-ASIDE

6. DELIVER BY (Date)

SEE SCHEDULE

AND/OR DMS REG. 1

UNDER BDSA REG. 2

4. CERT. FOR NAT. DEF.3. REQUISITION/PURCHASE

REQUEST NO.

U.S. ARMY CORPS OF ENGINEERS, OMAHA DIST

CONTRACTING OFFICE

1616 CAPITOL AVENUE

OMAHA NE 68102-4901

9. DESTINATION (Consignee and address, including ZIP Code)

7. DELIVERY

[ ]X FOB

DESTINATION

[ ] OTHER

(See Schedule)

05-Sep-2024(Date)

PLEASE FURNISH QUOTATIONS TO THE ISSUING OFFICE IN BLOCK 5a ON OR BEFORE CLOSE OF BUSINESS:10.

AARON T DUGICK

(Name and Telephone no.) (No collect calls)5b. FOR INFORMATION CALL:

d. CALENDAR DAYSc. 30 CALENDAR DAYSb. 20 CALENDAR DAYS12. DISCOUNT FOR PROMPT PAYMENT a. 10 CALENDAR DAYS

W9128F24Q0087

Section 00 10 00 - Solicitation, Contract Line Item Number (CLIN) Schedule

SOW

Missouri River Project Office Asphalt Roof Replacement July 15, 2024

DESCRIPTION/SPECIFICATIONS/SCOPE OF WORK

1. BACKGROUND: The Corps of Engineers has a requirement for replacement of the Missouri River Project Administration Building Asphalt Roof system and associated features. The building is a single-story that was originally constructed in 2005 and needs a new roof due to the buildings age and recent high wind and storm events.

2. SCOPE OF WORK: The work of this contract is to replace the existing building asphalt roof system and associated features at the Corps of Engineers Missouri River Project Administration Building. All work shall be completed 60 days after issuance of the Notice to Proceed. The work includes the following CLIN items.

CLIN 0001 (Complete Roof System Replacement):

Remove and replace the entire existing asphalt roof system and associated features, work includes but not limited to:

o Remove all the existing roof system. Such as asphalt shingles, screws, nails, fasteners, underlayment, tar felt paper, metal tin, metal flashing, drip edges, valley tin, vents, as required to expose the bare roof substrate.

o Clean the entire substrate of any projections and substances detrimental to shingling work.

o Inspect entire roof for damaged sheathing and report the findings to the COR.

o Remove damaged roof sheathing, screws, nails, fasteners as approved by COR.

o Install new 5/8-inch thick oriented strand board (OSB) sheathing as approved by

COR

o Install new ice dam barrier at eave edges, valleys, gutter edges, roof-to-wall conditions and tape and apply sealants as required.

o Install 2 layers of new 15-pound asphalt saturated non-perforated roof felt to the entire roof.

o Install new 24-gauge hot dipped galvanized pre-formed, prefinished architectural roofing flashing and sheet metal accessories. Includes metal flashing, drip edge, valley tin to match existing in quality, size, color as required for a complete roofing system.

o Install new fiberglass-core, asphalt self-sealing multi-layer construction, rustic heavyweight asphalt shingle system to match the existing in quality, size, color as required for a complete roofing system.

o Install new shingle-over ridge vent to match existing in quality, size, color as required for a complete roofing system.

CLIN 0002 (Sheathing Replacement):

After inspection of entire roof sheathing, prior to installing new underlayment/tar felt paper assembly, replace any damaged sheathing as required and approved by the COR.

Payment shall be made for each sheet of sheathing approved for removal/replacement and accepted by the COR.

3. PLACE OF PERFORMANCE: The project is at the Missouri River Project

Office located in Omaha, NE at 9901 John J Pershing Dr, Omaha, NE 68112.

3.1 HOURS OF OPERATION. The Contractor shall be required to complete construction services during normal duty hours of work, 7:00 a.m. to 3:30 p.m., Monday through Fridays, except Federal holidays or when the Government facility is closed due to local or national emergencies, administrative closings, or similar Government directed facility closings. For other than firm fixed price contracts, the Contractor shall not be reimbursed when the government facility is closed for the above reasons. Requests for additional work hours shall require written approval from the COR, 7 days in advance of the proposed work period.

The Contractor must at all times, maintain an adequate workforce for the uninterrupted performance of all tasks defined within this SOW when the Government facility is not closed for the above reasons.

3.2 CONTRACTOR USE OF PREMISES: During the construction period the Contractor will have full use of the premises for construction operations, including use of the site from 7:00 am – 3:30 pm Monday through Fridays. The Contractor will schedule their operations to minimize disruption to occupants and employees.

The existing building will be continually occupied throughout the duration of the construction and operations within the building must not be disrupted. The Contractor shall coordinate construction activities with the Contracting Officers Representative (COR). Contractor shall not remove more of of the moisture barrier/ weather protection in one day than can be replaced in the same day. Facilities shall not be left open or unsecured at the end of the workday. The Government restrooms are for Government employees only and the contractor shall have appropriate portable restroom facilities for the employees. Government phones are not available for Contractor’s use.

4. PERIOD OF PERFORMANCE: Period of performance for this contact will be 60 days after issance of the Notice to Proceed.

5. SPECIFICATIONS and SUBMITALS: The following listed project specifications are a part of this solicitations and any resultant contract. The contract drawings are modified versions of the original construction drawings and any questions on the drawings shall be directed to the COR for clarification.

5.1 SUBMITTALS: The following Table 6.1A lists the required submittals as stated in this Scope of Work.

Table 6.1A - Submittals Notes Administrative

Certificate of Insurance The contractor shall submit a valid certificate of insurance. Work will not begin until the certificate of insurance has been received, reviewed, and accepted by the COR.

Project Schedule The contractor shall submit a project completion schedule. Work will not begin until the project completion schedule has been received, reviewed, and accepted by the COR.

Training AT Level 1 The Contractor shall submit certificates of completion for each

Contractor employee and subcontractor employee.

iWatch This training shall be completed within 5 calendar days of contract award and within 3 calendar days of new employees commencing performance with the results reported to the COR NLT 5 calendar days after contract award.

Security Personnel list Contractor shall submit a complete, updated and signed, list of all contractor and subcontractor personnel, including their titles and intended working hours, who will be working on site prior to start of work. This listing shall be revised and resubmitted when personnel changes occur.

Identity Verification Contractor employees shall provide positive verification of individual identity prior to authorized access to the Jobsite.

Acceptable forms of identity verification are documents issued by a federal Government agency that include: the individual's photograph, name, and date of birth, such as a passport or military identification (ID) card. Additionally, a state issued driver's license or ID card is acceptable for identity verification.

Personal Risk Assessment A minimum of seven days prior to engaging in work submit, to the COR, a Personnel Risk Assessment (PRA) for each employee requiring authorized unescorted access to the Jobsite. The Contractor employee will only be allowed authorized unescorted physical access after the PRA is shown to and approved by the Government.

Asphalt Shingles Samples a minimum of four (4) full size shingles of the type specified in accordance with these specifications. Samples shall be representative of the range of colors that can be anticipated on the completed roof.

Guarantee Submit two (2) copies of the manufacturer's standard guarantee on shingle materials in accordance with these specifications. Shingle roofs and flashings shall also be guaranteed by the roofing subcontractor (material and labor) to be leak proof for a period of two years. This guarantee shall also be signed by the Prime Contractor.

Flashing and Sheet Metal Shop Drawings Contractor shall submit Shop Drawings in accordance with these specifications. Shop Drawings shall show manner of forming, jointing, and securing of flashing and sheet metal, and shall also show the relationship to the roofing membranes, substrate, vertical surfaces, expansion joint provisions, etc.

Samples Contractor shall submit color samples of specified sheet metal color(s) in accordance with these specifications. Submit actual samples on sheet metal, not paper samples.

Joint Sealers Samples Color samples shall be submitted to the COR in accordance with these specifications. Samples shall be strips of actual caulking.

Paper samples will not be acceptable.

5.2 SECTION 07300 - ASPHALT SHINGLES

A. GENERAL

RELATED WORK SPECIFIED

Asphalt Shingles Section 07300 Flashing and Sheet Metal Section 07600 Caulking and Sealants Section 07900

SUBMITTALS

Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with these specifications.

SD-4 Samples

Asphalt Shingles; G-MRPO

Before ordering the shingles, submit a minimum of four (4) full size shingles of the type specified in accordance with these specifications. Samples shall be representative of the range of colors that can be anticipated on the completed roof.

GUARANTEE

Submit two (2) copies of the manufacturer's standard guarantee on shingle materials in accordance with these specifications prior to project closeout. Shingle roofs and flashings shall also be guaranteed by the roofing subcontractor (material and labor) to be leak proof for a period of two years. This guarantee shall also be signed by the Prime Contractor.

DELIVERY, STORAGE AND HANDLING

Deliver materials in manufacturer's unopened, labeled containers.

Store materials to avoid water damage, and store rolled goods on end. Comply with manufacturer's recommendations for job-site storage and protection.

JOB CONDITIONS

Proceed with shingle work only when weather conditions are in compliance with manufacturer's recommendations and when substrate is completely dry.

B. PRODUCTS

ASPHALT SHINGLES

Asphalt shingles shall be fiberglass-core, asphalt self-sealing multi-layer (“weathered” look) construction, Rustic Heavyweight Asphalt Shingles. Existing Color is Weathered Wood. Shingles are subject to approval. Such approval will be based on an evaluation of the product's following salient characteristics:

Warranty Material used for fabrication Construction (multiple layers per shingle) Color Design Weight

Roof felt shall be 15-pound asphalt saturated non-perforated felt conforming to ASTM D4869/D4869M or ASTM D226/D226M. Other material specified by the shingle manufacturer for use as underlayment shall be submitted and approved before use.

Nails for fastening asphalt shingles shall be large-head galvanized roofing nails, 12 gauge with ring shank or barbed shaft x length sufficient to penetrate through sheathing layers by 3/8”.

Ice dam barrier for use shall be self-adhering leak barrier or ice dam underlayment and must comply with ASTM D1970/D1970M for sealability around nails. Self-adhering rubberized asphaltic membrane, a minimum of 40 mils thick, and recommended by the shingle manufacturer for use at eave edges, valleys, gutter edges, roof-to-wall conditions and other locations shown on the drawings.

Asphalt plastic cement shall be fibrated asphalt cement complying with ASTM D 2822, designed for trowel application.

Shingle over ridge vents must be constructed of UV stabilized nailable rigid polypropylene material, approximately 9 inches wide and 5/8 inch thick, and must be corrugated polyethylene rigid roll with a net free area of 12.5 square inches/linear foot. Size shall be length as shown on Drawings by approximately 9” wide. Vents must be designed to prevent infiltration of insects, rain, and snow.

C. EXECUTION

INSPECTION

Installer of shingles must examine substrate and must notify Contractor of unsatisfactory conditions. Do not proceed with work until conditions have been corrected. Do not install building construction materials that show visual evidence of biological growth. Ensure that roof deck is smooth, clean, dry, and without loose knots. Roof surfaces must be firm and free from loose boards, large cracks, and projecting ends that might damage the roofing. Vents and other projections through roofs must be properly flashed and secured in position, and projecting nails must be removed or driven flush with the deck.

PREPARATION OF SUBSTRATE

Clean substrate of any projections and substances detrimental to shingling work. Cover knotholes and cracks with sheet metal nailed securely to sheathing. Flash and secure vents and other roof projections and remove or drive projecting nails firmly home.

INSTALLATION OF ASPHALT SHINGLE ROOFS

GENERAL

Comply with the instructions and recommendations of the shingle manufacturer, except to the extent more stringent requirements are indicated.

Installation shall conform to the requirements contained in the latest edition of the publication issued by the Asphalt Roofing Manufacturer's Association entitled "Residential Asphalt Roofing Manual."

UNDERLAYMENTS

From a point 3 feet inside of all roof edges, all around dormers and chimneys, along both sides of all valleys, and at other locations shown on the Drawings, install ice dam barrier in accordance with the manufacturer’s printed instructions. At all other roof areas, install two layers of roofing felt. Overlap felt layers a minimum of one-half of the width of the felt paper. Secure underlayment to deck with sufficient fasteners to hold in place until shingles are applied.

DRIP EDGES

Provide metal drip edges as specified in Section 07 60 00 FLASHING AND SHEET METAL applied directly on the wood deck at eaves and over the underlayment at rakes.

Extend back from edge of deck a minimum of 3 inches, and secure with nails spaced a maximum of 4 inches o.c. along inner edge.

RIDGE VENT

Prior to installation of shingle-over ridge vents, Contractor shall confirm roof sheathing has a gap for air flow at ridge. See Drawings for further description of this work.

Install shingle-over ridge vent in compliance with manufacturer’s printed recommendations.

Nail to supporting roof framing (16” O.C.), down on top of roofing felts. Install shingles on top of ridge vent, in accordance with manufacturer’s printed recommendations.

STARTER STRIP

Apply starter strip at eaves, using 9 inch wide strip of mineral-surfaced roll roofing of a color to match shingles. Optionally, use a row of shingles with tabs removed and trimmed to ensure that joints are not exposed at shingle cutouts. Apply starter strip along eaves, overhanging the metal drip edge at eaves and rake edges 1/4 inch to 3/8 inch; fasten in a line parallel to and 3 to 4 inches above eave edge. Place nails so top of nail is not exposed in cutouts of first course of shingles. Fasten with 6 nails per strip of shingles or space nails at 6 inches o.c. for roll roofing. Seal tabs of first course of shingles with asphalt roof cement as recommended by manufacturer.

SHINGLES

Shingles shall be laid with true horizontal and vertical lines, with not more than 5" exposure and not less than 2" head lap unless recommended otherwise by the shingle manufacturer. At eaves, install starter strip of roll roofing or inverted shingles with tabs removed.

Each tab of strip shingles shall be securely sealed to the undercourse by means of a factory-applied adhesive strip with a biodegradable cover strip that will dissolve after installation.

Nail shingles to substrate as recommended by the shingle manufacturer.

Hips and ridges shall be capped with hip and ridge shingles, secured in place with two concealed nails or as otherwise recommended by the manufacturer. Start at lower end of hip finishing with ridge capping starting at the end opposite the prevailing wind end of ridge. Ridge and hip shingles shall extend approximately 4 inches on both sides of the ridge or hip, making sure that the hip and ridge shingles do not extend beyond the edges of the roof.

ROOF SHEATHING

Roof sheathing shall be 5/8-inch thick oriented strand board (OSB) sheathing and shall meet the following requirements:

Exposure Durability Classification: Exposure 1 Span Rating: As required to suit 24” spacing of structural members Provide ply clips at all unsupported edges.

INSTALLATION OF ROOF SHEATHING

Install roof sheathing with long dimensions perpendicular to roof framing members and ends on support centerlines. Space panels 1/16” at the short end and 3/8” at the long edges. Roof sheathing shall be nailed every 6” on center (8 nails) on panel edges and every 12” on center (4 nails) along intermediate supports.

5.3 SECTION 07600 - FLASHING AND SHEET METAL

A. GENERAL

SCOPE

This Section refers to all sheet metal flashing associated with roofing work as shown on the Drawings.

RELATED WORK SPECIFIED

Asphalt Shingles Section 07300 Caulking and Sealants Section 07900

QUALITY ASSURANCE

Fabrication/installation shall be by installers with a minimum of five years experience in the fabrication and installation of the herein described pre-formed sheet metal assemblies.

Prior to fabrication, take field measurements of structure or substrates to receive panel system. Maximum deviation from vertical and horizontal alignment of erected panels: 1/4" in 20 feet.

Except as otherwise shown, detailed, or specified, all flashing and sheet metal work shall comply with applicable recommendations and details of the latest edition of the Architectural Sheet Metal Manual of the Sheet Metal and Air Conditioning Contractors National Association.

All sheet metal, flashing and associated work shall be subcontracted to a single firm, with undivided responsibility for the specified performance of component parts (even though some components may be sub- contracted to others).

SUBMITTALS

Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with these specifications:

SD-02 Shop Drawings

Flashing and Sheet Metal; G-MRPO

Contractor shall submit Shop Drawings in accordance with these specifications. Shop Drawings shall show manner of forming, jointing, and securing of flashing and sheet metal, and shall also show the relationship to the roofing membranes, substrate, vertical surfaces, expansion joint provisions, etc.

SD-04 Samples

Flashing and Sheet Metal; G-MRPO

Contractor shall submit color samples of specified sheet metal color(s) in accordance with these specifications. Submit actual samples on sheet metal, not paper samples.

INSTALLERS' FIELD SUPERVISION

The roofing subcontractor must maintain a full-time, experienced supervisor/foreman on the jobsite during times that roofing work and associated roofing work (as described above) is in progress.

DELIVERY, STORAGE, AND HANDLING

All sheet metal shall be stored flat in areas protected from heat, direct sunlight, weather, wind, construction activities, and other conditions which might cause damage to the form or finish of the metal. Damaged materials are to be removed and replaced with new material.

Sheet metal, roofing materials, and methods of installation shall be coordinated to develop assemblies approved by the roofing material and flashing material manufacturers. The Built-Up Roofing Manufacturer shall coordinate with the metal manufacturer to assure that proper bond between their respective materials will take place where required. In case of conflict between these Specifications for the above-referenced materials and the latest manufacturer's printed recommendations, the latter shall govern, but the difference shall be brought to the attention of the COR immediately.

WARRANTY

All pre-finished sheet metal flashing materials shall receive a written 20-year non-prorated warranty covering face, chalking, and film integrity. The warranty shall include labor and materials through the 20th year.

B. PRODUCTS

SHEET METAL MATERIALS

All sheet metal components shall comply with ASTM A755/A755M with G-90 coating designation.

Pre-formed, prefinished architectural roofing flashing and sheet metal accessories shall be pre-finished sheet metal for all roof edge flashings and all associated accessories shall be 24 gauge hot- dipped galvanized sheet metal and shall be factory-primed and finished one side with ColorKlad Kynar based flouropolymer coating 1.0 mil total dry film thickness. A wash coat of .3-.4 mil dry film thickness shall be applied to the reverse side. The finished side shall be coated with a liquid applied factory installed strippable film for protection of the finished surface during shipping, fabrication and installation. The material shall be protected from heat and direct sunlight to prevent deterioration of the strippable film and finished coating. Finish shall be smooth. Color will be selected from manufacturer’s standards by the COR during the review process.

Solder for use with galvanized sheet metal shall meet the requirements of ASTM B 32, 50 percent tin and 50 percent lead used with rosin flux unless other types of solder or flux are recommended by the sheet metal manufacturer.

MISCELLANEOUS MATERIAL AND ACCESSORIES

Sealants for use with sheet metal flashing shall be furnished and installed under this Section and shall be as specified and scheduled in Section 07900.

Fasteners shall be the same metal as the flashing/sheet metal or other non-corrosive metal as recommended by the sheet metal manufacturer. Match finish of exposed heads with material being fastened.

Nails shall be not less than No. 12 gauge, with large flat heads, diamond points, barbed shafts, and of sufficient length to penetrate substrate at least 7/8". Nails shall have neoprene washers where heads are exposed to the weather.

Screws shall be No. 12 stainless steel, bronze or brass round-head wood or sheet metal screws of sufficient length to penetrate substrate 7/8". Washers shall be neoprene or lead where screws are exposed to the weather.

ISOLATION MATERIALS

Coating and tapes, for isolation of dissimilar materials, shall meet the recommendations of the sheet metal manufacturer.

FABRICATION - GENERAL

Shop fabricate work to greatest extent possible. Comply with details shown, and with applicable requirements of SMACNA "Architectural Sheet Metal Manual" and other recognized industry practices. Fabricate for waterproof and weather-resistant performance and with expansion provisions for running work, sufficient to permanently prevent leakage, damage or deterioration of the work. Form exposed sheet metal work without excessive oil canning, buckling, and tool marks, true to line and levels as indicated, with exposed edges folded back to form hems. Provide uniform neat seams with minimum exposure of solder, welds, and sealant. Follow with metal manufacturer's recommendations of tinning, soldering, welding, and cleaning flux from metal.

All joints shall be sealed and designed to accommodate movement.

Where lapped or bayonet-type expansion provisions in work cannot be used, or would not be sufficiently water/weatherproof, form expansion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with sealant (concealed within joints).

Where movable, non-expansion type joints are indicated or required for proper performance of work, form metal to provide for proper installation of clear silicone sealant, as scheduled in Section 07900, in compliance with industry standards.

FABRICATION

FABRICATION OF ROOF EDGE FLASHING

1. Form exposed cap flashing from sheet metal to the profiles shown on the Drawings in maximum 10-foot lengths. Provide 8-inch wide coverplates for joints at cap flashing to the same profile as the cap flashing and for installation over the cap flashing as shown in Detail 3-3.19 of the SMACNA Manual.

2. Form concealed or exposed two-piece receiver and counterflashing from pre-finished sheet metal to the profiles shown on the Drawings in maximum 10-foot lengths.

3. Form concealed continuous or intermittent cleats from sheet metal to match the profiles shown on the Drawings.

4. Fabricate flashing at rake edge of sloping roof areas to the profiles shown on the Drawings.

Form hot pipe penetration pans as shown in the SMACNA Manual and as otherwise indicated on the Drawings and required by the Roofing Manufacturer.

Formed sheet metal items shall be cut, formed or riveted using hand or power tools. Fabricate and install in accordance with Drawings and Specifications using recognized sheet metal practices.

Keep cutting edges sharp, clean, properly dressed and closely aligned. Exercise care during fabrication and erection to avoid damage.

Use color matched touch-up paint and rivets where required.

Pre-painted coating must be mechanically removed if soldering is necessary.

Form miscellaneous items from galvanized sheet metal at special flashings where shown on the Drawings and install with clips, cleats or other fastenings as required.

C. EXECUTION

Substrate condition shall be smooth, free from defects, dust, rubbish and other foreign material and with projecting nails driven flush.

PREPARATION

Separate concealed surfaces of dissimilar metals by painting with a dielectric coating or by using an uncured non-conducting elastomeric sheet gasket.

INSTALLATION

Install work with lines and corners true and accurate in alignment. Install faces flat and free of buckles, excessive waves, and avoidable tool marks, considering the temper and reflectivity of the metal. Provide uniform neat seams with minimum exposure of solder, welds, and sealant. Fold back sheet metal to form a hem on the concealed side of exposed edges. Follow the metal manufacturer's recommendations for tinning, soldering, welding, and cleaning flux from metal.

Install work to meet the recommendations shown in the SMACNA Manual and the recommendations of the sheet metal manufacturer, except when otherwise shown or specified. In the event of a conflict between recommendations of SMACNA and the sheet metal manufacturer, the latter shall govern.

Conceal fasteners and expansion provisions wherever possible in exposed work, and locate to minimize the possibility of leakage. Cover and seal work for a watertight installation. Provide cleat-type anchorages for metal flashing and trim wherever practical, arranged to relieve stresses resulting from building movement and thermal expansion.

Provide flanges, minimum 4 inches wide, for stripping in roofing.

Provide for thermal expansion for items, which exceed 15 feet in length. Expansion joints shall be watertight, and shall be located as follows:

5. Flashing: At 2 feet from corners and intersections and at 10-foot centers elsewhere.

Overlaps shall be as follows:

Vertical surfaces Minimum 3 inches

Slopes 6 in 12 or less Minimum 6 inches

In installing drip edge flashing, after roofing membrane has been run out over the edge of the roof, secure flashing to wood blocking and construction with fasteners at 18-inch center maximum and lapping joints 4- inches minimum.

Install sealer pocket pans with pourable sealer and as otherwise required by the roofing system materials supplier.

Install sheet metal hood at hot pipes with draw band and sealant at top edge, and secure sheet metal sleeve to deck as required with 2" minimum air space between sleeve and hot pipe.

Install other miscellaneous sheet metal items as shown on the Drawings and as specified herein and in the SMACNA Manual to provide a neat weathertight installation.

All fabrication and installation shall be accomplished with the strippable film in place.

After installation is complete, immediately remove strippable film. Extended exposure of strippable film to ultraviolet light may damage paint coating underneath.

CLEANING AND PROTECTION

Touch-up abraded zinc-coated areas where the galvanized coating has been damaged with a minimum 2-mil dry-film-thickness coating, with a high concentration of zinc dust, complying with MIL-P-21035, specifically intended for repair of zinc coatings on steel.

Clean exposed surfaces of substances which are visible or which might cause corrosion of metal or deterioration of finish.

Clean and neutralize flux to meet the recommendations of the metal manufacturer.

Application of sealants and caulking related to sheet metal flashing where indicated and required, shall be performed by the fabricator/installer using sealants as specified and scheduled in Section 07900, except where specified herein.

Installer shall advise Contractor of required procedures for surveillance and protection of flashings and sheet metal work during construction, to ensure that work will be without damage or deterioration, other than natural weathering, at time of Substantial Completion.

5.4 SECTION 07900 - JOINT SEALERS

B. GENERAL

RELATED WORK ELSEWHERE

Flashing and Sheet Metal Section 07600

SUBMITTALS

Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with these specifications.

SD-04 Samples Joint Sealers; G-MRPO Color samples shall be submitted to the COR in accordance with these specifications. Samples shall be strips of actual caulking. Paper samples will not be acceptable.

GENERAL PERFORMANCE

Joint sealers, except as otherwise indicated, are required to establish and maintain air tight and waterproof continuous seals on a permanent basis, within recognized limitations of wear and aging as indicated for each application. Failures of installed sealers to comply with this requirement will be recognized as failures of materials and workmanship.

JOB CONDITIONS

Sealants shall be installed on dry days preferably with temperatures between 40 deg. F and 55 def. F, but in no case shall sealants be installed when temperatures are below 40 deg. F or above 90 deg. F.

Special care shall be exercised to prevent damage to adjacent work during installation of sealants. Sealant installation shall not begin until all samples have been approved.

C. PRODUCTS

SEALANTS

Provide sealant products that have been tested, found suitable, and documented as such by the manufacturer for the particular substrates to which they will be applied.

For joints in vertical surfaces, provide ASTM C920, Type S (single component) or M (multicomponent), Grade NS (nonsag), Class 25, Use NT (nontraffic). For joints in horizontal surfaces, provide ASTM C920, Type S (single component) or M (multicomponent), Grade P (pourable or selfleveling), Class 25, Use T (pedestrian or traffic).

Provide the sealant manufacturer's recommended type of joint primer for joint surfaces to be primed. Verify with the sealant manufacturers which materials require priming for each of the sealants used.

D. EXECUTION

Installer must examine substrates (joint surfaces) and conditions under which joint sealer work is to be performed, and must notify Contractor in writing of unsatisfactory conditions. Do not proceed with joint sealer work until unsatisfactory conditions have been corrected in a manner acceptable to installer.

PREPARATION

Clean down joint surfaces using oil-free solvent for metal, glass, and other non-porous surfaces. Surfaces to receive sealant shall be sound, clean and dry, and free of frost, laitance, curing compounds, waterproofing compounds, mastic compounds, corrosion, mill scale, rust, oil, tar, wax, paint, mastic, and similar contaminates.

INSTALLATION

Comply with the manufacturer's printed instructions except where more stringent requirements are shown or specified, and except where manufacturer's technical representative directs otherwise.

Mix two-part sealants by mixing the activator with the resin uniformly and thoroughly, in the proportions supplied to meet the recommendations of the sealant manufacturer.

Sealant shall be mixed in a mechanical mixer, except very small amounts may be hand mixed with a trowel.

Install backer rod with a blunt rod or plain faced roller. Recess into joint to meet the requirements of the sealant manufacturer's recommendations for joint width and depth ratio. Do not puncture, fold, twist, or crease backer rod.

Install bond breaker where sealant would otherwise bond to backer rod or joint filler.

Do not allow sealants or compounds to overflow from confines of joints, to spill onto adjoining work, or to migrate into voids of exposed finishes. Clean adjoining surfaces by whatever means may be necessary to eliminate evidence of spillage.

Install sealants in uniform, continuous ribbons without gaps or air pockets, with complete "wetting" of joint bond surfaces equally on opposite sides. Except as otherwise indicated, fill sealant rabbet to a slightly concave surface, slightly below adjoining surfaces.

Where horizontal joints are between the horizontal surface and vertical surface, fill joint to form a slight cove, so that joint will not trap moisture and dirt.

Apply thermo-setting or silicone sealants, holding the gun nozzle at an angle of about 45 degrees and move steadily along the joint so that a uniform bead is applied without dragging, tearing, or leaving unfilled spaces. Push the bead rather than draw it with the gun leading. Fill joints in vertical surfaces level with adjacent surfaces and tool within ten minutes of application with one continuous stroke to insure intimate contact with the joint surfaces, to remove any trapped air or voids, to consolidate material, and to provide a neat, uniform, appearance. Fill joints in horizontal surfaces holding the top surface of the sealant slightly below the adjacent surfaces.

Install self-leveling sealants to a depth equal to 75 percent of joint width but neither more than 5/8-inch deep or less than 3/8-inch deep as recommended by sealant manufacturer.

Pour sealant into joints and fill to within 1/16-inch of adjacent surfaces, exercising care not to spill sealant on such surfaces. Refill any areas where sealant seeps out of joint through the expansion joint filler before sealant sets up.

CLEANING AND PROTECTION

Remove masking immediately after application and tooling operations are complete.

Clean excess or spilled sealant from non-porous surfaces with solvent before curing.

Clean excess or spilled sealant from porous surfaces with abrasive or mechanical means after curing.

Protect sealant where bituminous material is to be applied over thermosetting joint sealant with vinyl or polyethylene sheet material.

Cure sealants in compliance with manufacturer's instructions and recommendations, to obtain high early bond strength, internal cohesive strength and surface durability. Advise Contractor of procedures required for cure and protection of joint sealers during construction period, so that they will be without deterioration or damage (other than normal wear and weathering) at time of substantial completion. Replace or restore sealants which are damaged or deteriorated during construction period.

SCHEDULE OF APPLICATION

Apply thermosetting building sealant at the following locations:

At all exposed isolation, expansion, and control joints At flashing (where shown on the Drawings) At miscellaneous locations where caulking is shown on the Drawings

SCHEDULE OF SPECIAL SEALANT COLORS

Special sealant colors shall match colors as follows:

At miscellaneous locations shown on the drawings standard color to most closely match adjacent colors

7. MEETING WITH THE CONTRACTING OFFICER’S REPRESENTATIVE (COR)

7.1 PRE-CONSTRUCTION MEETING: The Contractor is required to meet with the

COR prior to commencement of the contract work to discuss and review the performance and administration requirements of the contract. The meeting location and time will be designated by the COR. At this meeting the Contractor shall provide the required submittals in accordance with these specifications. The contractor shall submit a project schedule and a Certificate of Insurance. Work will not begin until a project schedule and a Certificate of Insurance has been received, reviewed, and accepted by the COR.

8. SAFETY: All work shall be performed in accordance with applicable Occupational Safety and Health Act (OSHA) 29 CFR 1926 Construction Standard as well as the Corps of Engineers Safety Requirements (Safety Manual, EM 385-1-1). If requested a copy of the manual will be provided to the Contractor prior to start of work. The Contractor shall assure that the work site is checked and clear of any safety hazards while the site is unattended. The contractor shall coordinate with the COR regarding inclement weather.

9. SECURITY: All Contractor and all associated sub-contractors’ employees shall comply with applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative). The Contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by the USACE Security Office.

Directions for background check are in paragraph 9.3.

9.1 Submit a complete, updated and signed, list of all Contractor and subcontractor personnel, including their titles and intended working hours, who will be working on site prior to start of work. This listing shall be revised and resubmitted when personnel changes occur.

9.2 Personnel Risk Assessment. A minimum of seven days prior to engaging in work submit, to the COR, a Personnel Risk Assessment (PRA) for each employee requiring authorized unescorted access to the Jobsite. The Contractor employee will only be allowed authorized unescorted physical access after the PRA is shown to and approved by the Government.

9.3 Authorized Unescorted Access Requirements. Perform a PRA on all Contractor personnel that require authorized unescorted access to the Jobsite. Costs associated with the execution of the PRA shall be at the expense of the Contractor. The content of the PRA is defined by the requirements as follows:

a. Criminal Check - Obtain a criminal background check, completed within the last seven years, on all Contractor personnel that require authorized unescorted access to the Jobsite. A minimum of a 7-year criminal background check with the USACE Security Office or the state patrol office shall be performed from the state of residence and employment, for the past seven years. The COR through the Contacting Officer will approve, disapprove, or revoke authorized unescorted access to the Jobsite as a result of the seven-year background check in accordance with Army Directive 2014-05 Enclosure 2.

b. Identity Verification - Contractor employees shall provide positive verification of individual identity prior to authorized unescorted access to the Jobsite. Acceptable forms of identity verification are documents issued by a federal Government agency that include: the individual's photograph, name, and date of birth, such as a passport or military identification (ID) card. Additionally, a state issued driver's license or ID card is acceptable for identity verification.

c. Escort Requirements - Contractor personnel not cleared for authorized access to the Jobsite may be escorted by Government or Contractor personnel that have authorized unescorted access to the Jobsite. All costs related to the escorting of non-cleared personnel shall be at the expense of the Contractor. Additional burden shall not be placed upon the Government to provide these escorts. Prior to access, coordination with the Project Security Officer is required, including but not limited to:

a. Verification of identity with photo identification

b. Name of escorting individual and verification of unescorted status

c. Time of entry into the Jobsite

d. Time exiting the Jobsite.

9.4 All Contractor employees, to include subcontractor employees, requiring access to Army installations, facilities and controlled access areas shall complete the following trainings within 5 calendar days after contract award. All contract employees, including subcontractor employees who are not in possession of the appropriate security clearance, shall be escorted while on site by an approved contractor employee.

a. AT Level I awareness training. The Contractor shall submit certificates of completion for each affected Contractor employee and subcontractor employee, to the COR or to the contracting officer, if a COR is not assigned, within 5 calendar days after completion of training by all employees and subcontractor personnel. AT Level I awareness training is available at the following website: https://jko.jten.mil/courses/AT-level1/launch.html

b. iWatch Training. The Contractor and all associated sub-contractors shall brief all employees on the local iWATCH, Corps Watch, or See Something, Say Something program (training standards provided by the requiring activity ATO). This locally developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the COR. This training shall be completed within 5 calendar days of contract award and within 3 calendar days of new employees commencing performance with the results reported to the COR NLT 5 calendar days after contract award.

https://www.dvidshub.net/video/583923/iwatch-2018

c. E-Verify. The Contractor must pre-screen Candidates using the E-verify

Program (https://www.e-verify.gov/) 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. An initial list of verified/eligible Candidates must be provided to the COR no later than 5 business days after the initial contract award.

10. PROJECT CLEAN UP: All refuse generated from this work shall be removed from the site. All debris shall be disposed of off Government lands in accordance with local, state, and federal regulations. No separate payment shall be made for work specified in this section. Compensation for this work will be considered included in the payment for the completed project.

11. POINTS OF CONTACT:

For Technical questions contact:

TBD

For Contracting questions contact:

Nadine L. Catania, email nadine.l.catania@usace.army.mil

DRAWINGS

See Attachment 1 for Drawings

(End of Statement of Work)

PRICE SCHEDULE

***The contractors shall provide the Price Schedule below with their quote.***

PRICE SCHEDULE

ITEM

NO.

DESCRIPTION QTY Unit Unit Price Total Price

BASE BID

0001 All cost associated with the complete removal and replacement of the existing asphalt roof system and associated features in accordance with the Scope of Work and Specifications.

1 JOB

OPTION 1 - SHEATHING

0002 All Cost associated with the removal and replacement of a single sheet of 5/8 inch OSB in accordance with the scope of work and specifcations.

25 EACH

BASE AND OPTION TOTAL

Note: Line Item 0002 payment shall be made for each sheet of sheething approved for removal/replacement and accepted by the COR at completion of the project.

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

0001 1 Job Complete Roof System Replacement

FFP

The contractor shall provide all equipment, material and labor to remove and replace the existing asphalt roof system and associated features in accordance with the Scope of Work and Specifications.

FOB: Destination

PSC CD: Z2AA

NET AMT

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

0002 25 Each OPTION Sheathing Replacement

FFP

The contractor shall remove and replace a single sheet of 5/8 inch OSB in accordance with the scope of work and specifications. The contractor shall provide all cost associated with each single sheet of OSB removed and replaced in the unit cost.

FOB: Destination

PSC CD: Z2AA

NET AMT

Section 00 21 00 - Instructions

CLAUSES INCORPORATED BY REFERENCE

52.204-7 System for Award Management OCT 2018 52.204-16 Commercial and Government Entity Code Reporting AUG 2020 52.204-22 Alternative Line Item Proposal JAN 2017 52.207-1 Notice Of Standard Competition MAY 2006 52.215-1 Instructions to Offerors--Competitive Acquisition NOV 2021 52.222-5 Construction Wage Rate Requirements--Secondary Site of the

Work

MAY 2014

52.225-10 Notice of Buy American Requirement--Construction Materials

MAY 2014

252.204-7019 Notice of NIST SP 800-171 DoD Assessment Requirements NOV 2023 252.215-7008 Only One Offer DEC 2022 252.215-7013 Supplies and Services Provided by Nontraditional Defense

Contractors

JAN 2023

CLAUSES INCORPORATED BY FULL TEXT

52.216-1 TYPE OF CONTRACT (APR 1984)

The Government contemplates award of a Firm-Fixed Price Construction contract resulting from this solicitation.

(End of provision)

52.236-27 SITE VISIT (CONSTRUCTION) (FEB 1995)

(a) The clauses at 52.236-2, Differing Site Conditions, and 52.236-3, Site Investigations and Conditions Affecting the Work, will be included in any contract awarded as a result of this solicitation. Accordingly, offerors or quoters are urged and expected to inspect the site where the work will be performed.

(b) Site visit will be held on 29 August 2024 at 10:00am Central Time.

Address for the site visit is as follows:

Missouri River Project Office 9901 John J Pershing Dr Omaha, NE 68112

Contractors shall submit the name of each attendee, company being represented and email address for each attendee to Aaron Dugick and Nadine Catania at aaron.t.dugick@usace.army.mil and Nadine.L.Catania@usace.army.mil by 3pm Central Time on 28 August 2024.

52.252-1 SOLICITATION PROVISIONS INCORPORATED BY REFERENCE (FEB 1998)

This solicitation incorporates one or more solicitation provisions by reference, with the same force and effect as if they were given in full text. Upon request, the Contracting Officer will make their full text available. The offeror is cautioned that the listed provisions may include blocks that must be completed by the offeror and submitted with its quotation or offer. In lieu of submitting the full text of those provisions, the offeror may identify the provision by paragraph identifier and provide the appropriate information with its quotation or offer. Also, the full text of a solicitation provision may be accessed electronically at this/these address(es):

https://www.acquisition.gov/

Section 00 22 00 - Supplementary Instructions

EVALUATION CRITERIA

Evaluation Criteria

1. Relevant Experience of Contractor:

a. Provide 3 projects (of similar magnitude) successfully completed in the last 5 years that provides evidence that the firm has the experience required for the project and include years of experience. Provide a point of contact for each project with POC name, phone number, active email address, and physical address.

2. Relevant Past and Current Performance:

b. Past performance is a measure of the degree to which an offeror satisfied its customers in the past and complied with Federal, State and Local laws and regulations. The Government may contact some of each offeror’s customers to verify that: (1) that the offeror was capable, efficient, and effective; (2) the offeror’s performance conformed to the terms and conditions of the contract; (3) the offeror finished within contract time; (4) the offeror was reasonable and cooperative during performance; and (5) the offeror was committed to customer satisfaction. In evaluating past performance, the Government may also check other sources of information, including but not limited to: Federal, State and local government agencies, better business bureaus, published media and electronic databases.

3. Price - The quote shall include all costs that might be incurred by the contractor during the contract such as, but not limited to, labor, travel (i.e., fuel, mileage, airfare), materials (i.e., tools, equipment, software, etc.), licenses, insurance, etc.

Experience and Relevant Past and Current Performance, when combined, are equal to price. The contractor shall quote a price for each item on the quote sheet.

Price will be evaluated based on a price…