Amendment W912WJ26QA007-0004.pdf

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER.

If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE OF PAGES

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

6. ISSUED BY CODE 7. ADMINISTERED BY (If other than Item 6) CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X) 9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

Section A - Solicitation/Contract Form

The following changes have been made:

INFORMATION FROM TO

Response Due Date 29 Oct 2025 31 Oct 2025

Miscellaneous text in this section has been modified to:

SITE VISIT ATTENDEE LIST

NAME COMPANY

Gavin Mullon Premier Mechanical Arthur Cohen Titan Roofing, Inc Herbert LePage LePage and Sons Mike LePage LePage and Sons Eric Roth Greenwood Industries Lamont Davis Anvil Steel Vitor DeFigueiredo Miller's Pro Jason Lee HGC Nimesh Patel Vedant Construction Rob Dondita PLJ Carpentry Gahritt Meika *unreadable* Dmitry Labkovich Roofing and Siding of Cape Cod Sergio Verga Coastal Roofing & Siding

REQUEST FOR INFORMATION

Question 1: Who is the incumbent?

Response 1: This is a new requirement, therefore, there is no incumbent.

Question 2: What is the past contract award number?

Response 2: See response to question 1.

W912WJ26QA0070004

Question 3: Has the budget been approved for this contract?

Response 3: Funds are available for this requirement.

Question 4: Is there a scheduled site visit day, date and time?

Response 4: Information on scheduled site visit is listed in clause 52.236-27 Alternate I, "Site Visit (Construction). Alternate I)".

Question 5: Do you have the pricing template in an Excel, pdf, or another form to submit back in a clean format?

Response 5: Pricing shall be entered in the contract line item as included in the solicitation.

Question 6: The scope appears to contain conflicting language. It states, "remove and replace" and also "reinstall existing" ("replacing (3) existing roof top exhaust fans, replacing (2) existing fresh air intakes, remove and reinstall existing"). Please provide confirmation on which action applies. Please provide specifications on what type of exhaust fan. At the site visit we were only allowed to see one fan.

Response 6: The scope states "replacing (3) existing roof top exhaust fans, replacing (2) existing fresh air intakes, remove and reinstall existing lightning protection system", therefore the Contractor is required to replace the exhaust fans and air intakes. For specifications for exhaust fans, refer to Part 2 Materials, Item 15 and photo 8.

Question 7: Specification #23 states that insulation shall be extruded polystyrene foam board. Would polyisocyanurate insulation be an acceptable alternative?

Response 7: Revised response is No, Contractor shall provide and install the material specified.

provided in response 11 below.

Question 8: Specification #20 references a concrete sealer and vapor barrier. Could a self-adhered modified membrane, such as V-Force by Firestone or Carlisle 725 TR be used instead?

Response 8: Contractor shall provide a concrete sealer in accordance with the requirements. Specific manufacturer products will not be reviewed during the solicitation phase. Products will be reviewed and accepted during the post-award submittal process if they meet the contractual requirements.

Question 9: During the site visit it was noted the existing building in some areas has a crown molding where we are to replace the soffit and facia and other areas where there is no crown molding. Is the existing crown molding to be replaced with a PVC Crown molding while replacing the facia and soffit?

Also, are we to install Crown Molding where it does not currently exist?

Response 9: Contractor shall remove and replace all existing soffit, facia, and crown molding except where existing aluminum gutters are to remain (includes lower entrance roof, gable end rakes, and dormers). The existing crown molding shall be replaced with a PVC Crown molding.

Question 10. In the scope of work line item # 20 calls for a concrete sealer and vapor barrier. Is the flat roof deck concrete? Also, please confirm/provide a BOD of these 2-part liquid applied urethan coating, or should this be a self-adhered vapor barrier provide by the roof manufacture such as V-FORCE or Carlise 725 TR?

Response 10: Yes, the flat roof deck is concrete. Provide a one or two-component, liquid-applied urethane coating, minimum dry film thickness of 20-30 mils, to form a tough elastomeric water-resistant coating able to bridge cracks followed by application of a membrane vapor barrier, minimum dry film thickness of 40-60 mils. Specific manufacturer products will not be reviewed during the solicitation phase.

Question 11. In the scope of work line item #23 insulation calls for extruded polystyrene foam board.

This is a typical to use on a flat roof system, typical it is a polyisocyanurate foam board. Please advise if polyisocyanurate foam board will be acceptable.

Response 11: Polyisocyanurate foam board is acceptable. Shall have a minimum of R-30 insulating value, ensure insulation system and facer material is compatible with membrane application specified and as approved by the roof membrane manufacturer.

Question 12. Scope of work line item #9, states to provide box-style commercia aluminum gutters. What style of box gutter is the USACE looking for. There are many different styles of box gutters.

Response 12: Gutters shall be box-style, style K, sized minimum 6", sloped at 1/16" per foot, and installed in continuous lengths with sealed, riveted joints and expansion joints every 40 feet.

Question 13. Please confirm a manufacturer's standard 30 year warranty (wind resistance 120 MPH) for the EPDM roof system is required. Is that correct?

Response 13: Yes, a manufacturer's standard 30 year warranty (wind resistance 120 MPH) for the EPDM roof system is required.

Section C - Description/Specifications/Statement of Work

Miscellaneous text in this section has been modified to:

ROOF REPLACEMENT

CAPE COD CANAL PROJECT - ADMINISTRATION BUILDING

U.S. ARMY CORPS OF ENGINEERS

BOURNE, MA

STATEMENT OF WORK

REVISED

I. General

1. Scope of work

Contractor shall include all labor, equipment, tools, and materials to demolish, remove, dispose of the existing roof components and install a new roof on the administration office building in accordance with this statement of work at the Cape Cod Canal, Bourne, MA. The administration building has (2) roof types, consisting of approximately 8000 square feet of asphalt shingles and approximately 1200 square feet of Ethylene Propylene Diene Monomer (EPDM) flat roof system. The new asphalt roof system shall be installed with asphalt laminated shingles, minimum 360 pounds per square, with a manufacturer's standard 25 year warranty . The new EPDM roof system (wind resistance 150 miles per hour (MPH)) shall be a fully adhered 90 mil nominal thickness with a manufacturer's standard 30 year warranty (wind

. Work includes providing new fascia trim boards, soffit trim boards, aluminum resistance 120 MPH) gutter system, perimeter aluminum drip edge flashing, chimney restoration, replacing (3) existing roof top exhaust fans, replacing (2) existing fresh air intakes, remove and reinstall existing lightning protection system, and cleaning out the existing gutters. (See Photos 1-16 and "Attachments"-Admin Building Roof - Information Drawings Only (9 Total)).

2. Location

The building is located on federal property at 40 Academy Drive, Buzzards Bay, MA. The Contractor will be working on an occupied building, that may be staffed 24 hours per day, seven days per week. The Contractor shall perform the work in a manner that allows employees and the general public to gain safe access to the buildings at all times. The Contractor shall take all practical measures to keep debris from falling onto active passageways. Work areas shall be maintained neat and orderly with debris picked up on a daily basis.

3. Site Visits

A scheduled site visit will be listed in the Solicitation. Interested vendors should attend the site visit to confirm understanding of the scope, inspect building conditions, inspect attic and roof access prior to submitting a quote. No extra payment will be allowed for perceived additional work caused by unfamiliarity with site conditions and requirements. The Technical Point of Contact (TPOC) for the project is Travis Germano, (978) 318-8550, travis.j.germano@usace.army.mil.

4. Schedule

The work shall be completed within 270 days from notice to proceed. The removal of the existing roof shall not occur until all materials for installation of the new roof are onsite. The schedule of work should be sequenced to help minimize time that bare roof is exposed to potential rain/wind damage to the building interiors. The hours available for work are Monday to Friday 0700 through 1700 hours.

5. Safety Requirements

A. General:

All work shall be conducted in accordance with the U.S. Army Corps of Engineers (USACE) Safety and Occupational Health Requirements (EM 385-1-1, most recent edition), and all applicable Occupational

Safety and Health Administration (OSHA), federal, state, and local safety and health requirements. A copy of EM 385-1-1 can be accessed electronically at the following link:

https://www.publications.usace.army.mil/Portals/76/EM%20385-1-1%20_EFFECTIVE% 2015March2024.pdf

Project staff reserve the right to cease work at any time should the safety of employees, Contractors, and /or the public become jeopardized.

B. Accident Prevention Plan (APP):

The Contractor shall prepare a site-specific Accident Prevention Plan. The APP must be written by a Competent Person (CP) and document the specific work processes, equipment, materials to be used, hazards and applicable control measures.

The mandatory ENG Form 6293 (Accident Prevention Plan Worksheet) must be submitted and accepted prior to beginning on site work:

https://www.publications.usace.army.mil/Portals/76/Eng_Form_6293_2023Aug31.pdf

A preparatory meeting shall be conducted by the Prime Contractor to discuss the APP contents with all effected onsite employees. The Prime Contractor is responsible for informing the subcontractors of the safety provisions under the terms of the contract, the penalties for noncompliance, and inspecting subcontractor operations to ensure that accident prevention responsibilities are being carried out.

Daily safety meetings shall be held and documented. Records shall be available to the Technical Point of Contact upon request.

C. Activity Hazard Analysis (AHA):

An AHA shall be submitted and accepted for each definable feature of work (DFOW) in accordance with EM 385-1-1, Chapter 2-6. A DFOW is defined as any task, which is separate and distinct from other tasks, has separate control requirements, or is identified as different trades or disciplines. The AHA shall be continuously reviewed and revised to address changing site conditions as appropriate.

For a non-mandatory formatted outline of an AHA, see ENG Form 6206 (Activity Hazard Analysis) https://www.publications.usace.army.mil/Portals/76/Eng_Form_6206_2023Aug24.pdf

D. Site Safety and Health Officer (SSHO) Requirements:

The Contractor shall employ a minimum of one person to function as a Level 3, SSHO. A Level 3 SSHO is a designated Qualified Person (QP) or Competent Person (CP) with Safety and Occupational Health (SOH) responsibility that meets the requirements of EM 385-1-1, Chapter 2-3.b and 2-4.b.

Level 3 SSHOs must have training, knowledge, and/or experience identifying hazards and implementing controls for the work being performed.

The SSHO shall be present at the project site and be responsible for overseeing the implementation of the Prime Contractor's SOH program. Contractor shall designate all SSHOs on a mandatory ENG Form 6282 (Site Safety and Health Officer Designation Letter):

https://www.publications.usace.army.mil/Portals/76/Eng_Form_6282_2023Aug28.pdf

E. First-Aid and CPR Personnel Requirements:

For shifts with multiple employees, provide at least two employees that are certified to administer First Aid and CPR. When employees work alone, they must be certified in First Aid and be provided an effective means of communication to call for assistance in the event of an emergency. Minimum First Aid and CPR qualifications are outlined in EM 385-1-1, Chapter 3-3.

F. Additional Personnel Requirements:

Other Competent Person (CP) or Qualified Persons (QP) may be required per EM 385-1-1 and/or other sections of this Scope of Work, based on the definable features of work for this project.

G. Accident Reporting:

All accidents and near misses shall be investigated by the Contractor and reported to the Technical Point of Contact in accordance with EM 385-1-1, Table 2-1.

The mandatory ENG Form 3394 shall be completed and submitted to the Technical Point of Contact within seven (7) days of an incident: https://www.publications.usace.army.mil/Portals/76/Publications /EngineerForms/Eng_Form_3394_2021Aug.pdf

H. Fall Protection:

The requirements of this section are applicable to contractors when their employees are working at heights above 6 feet, exposed to fall hazards, and/or using fall protection equipment. Every contractor is responsible for establishing, implementing, and managing a fall protection program in accordance with EM 385-1-1, Chapter 21.

A site-specific Fall Protection and Prevention Plan is required to be submitted and approved by the Technical Point of Contact (TPOC) prior to any work being completed at heights. USACE will provide a non-mandatory, fillable template plan. However, the Contractor is permitted to submit their own plan, at a minimum it must address the items listed in EM 385-1-1, Chapter 21-7:

i. General

1) Duties and responsibilities. Identify Competent Person (CP) and Qualified Person (QP) and their responsibilities and qualifications; Be trained in accordance with EM 385-1-1, Section 21-3. c, to include a minimum of 24-hour CP in fall protection training made up of classroom and practical hands-on components.

2) Detailed description of the activity being performed.

3) Description of anticipated hazards and fall hazard prevention and control.

4) Assignment of personnel and their duties and responsibilities; end user shall be trained and authorized by the employer on the use of assigned fall protection equipment in accordance with EM 385-1-1, Chapter 21-3. d, to include hands-on training and practical demonstrations.

5) Personal Fall Arrest System Requirements (PFAS) shall be Full body harnesses that meet the requirements of ANSI Z359 and be used in accordance with EM 385-1-1, Section 21-8. c.

6) Inspection and oversight methods to insure adherence to the plan.

7) Describe maintenance and storage of fall protection equipment.

6. Preconstruction Conference

Prior to the start of any work, the Contractor and Technical Point of Contact will schedule and conduct a "Preconstruction Conference". The Contractor's staff responsible for quality and safety on the job site will attend this meeting. No work may be performed under this contract prior to this conference. The purpose of the conference is to enable the Technical Point of Contact to outline the requirements in terms of safety, quality, communications, inspections, material storage, submittals, and payments.

7. Permits

The Contractor shall, without additional expense to the Government, be responsible for obtaining any necessary licenses, permits, and letters of certification. The Contractor shall comply with any applicable Federal, State, County, and Municipal laws, codes, and regulations in connection with the performance of the work specified under this contract.

8. Security

The contractor will comply with all established security policies at Cape Cod Canal Field Office.

Potential periods of heightened security may affect access to work areas. During periods of heightened security, the Government reserves the right, at any time, to close any property and reschedule work. The Contractor shall be given at least 24-hour notice of any such closure.

9. Contractor Conduct

The work area is located on Federal property. Contractor and employees must act in a safe and professional manner at all times. Alcohol and firearms are prohibited on project grounds.

10. Payment

Payment shall be made after final inspection and acceptance by the Government, the Contractor must submit an invoice, utilizing Form ENG 93, to the Technical Point of Contact. The invoice shall include the name of contractor (as per SAM registration), invoice date, contract number, description of work completed, and total amount due. For jobs greater than 30 days the contractor may request progress payments. Invoices may be emailed to:

US Army Corps of Engineers

Cape Cod Canal Field Office

P.O. Box 1555

Buzzards Bay, MA 02532

Attn: Travis Germano or email to travis.j.germano@usace.army.mil.

II. Technical Requirements:

Part 1 General:

Contractor's work and responsibility includes all job scheduling, personnel, equipment, materials, supervision, and quality control necessary to perform the work. Contractor shall provide bathroom and sanitation facilities for workers.

1. Requests for Information:

After notice to proceed, questions concerning the work of this project should be directed to the Technical Point of Contact at the Cape Cod Canal Office at (978) 318-8550 or travis.j.germano@usace.army.mil.

2. Submittals:

Contractor shall provide submittals that show pertinent details of proposed materials that allows confirmation the materials are in accordance with requirements listed in the materials section of this scope of work. Although the Government technically reviews submittals, the Contractor's work must be prosecuted using proper internal controls and review procedures. Contractor submittals must be reviewed and accepted by the Government prior to the commencement of any field activities. Contractor shall provide required submittals to the Technical Point of Contact within 45 days of notice to proceed.

Required submittals include:

A. ENG Form 6293 (Accident Prevention Plan Worksheet)

B. Activity Hazard Analysis; non-mandatory template available: ENG Form 6206

C. (Activity Hazard Analysis)

D. ENG Form 6282 (Site Safety and Health Officer Designation Letter)

E. First-Aid and CPR Personnel requirements

F. Fall Protection and Prevention Plan

G. Schedule and Coordination Plan - Prior to the start of work, Contractor shall present a plan to minimize onsite construction duration.

H. Work Plan - Plan that describes the proposed means and methods of access to the roof, debris removal, hoisting of materials, and installation.

I. Qualification of Applicator- Roofing system applicator must be approved, authorized, or licensed in writing by the roof membrane manufacturer and must have a minimum of (3) years' experience as an approved, authorized, or licensed applicator with that manufacturer and be approved at a level capable of providing the specified warranty. The applicator must supply the names, locations and client contact information of 3 projects of similar size and scope that the applicator has constructed using the manufacturer's roofing products submitted for this project within the previous (3) years.

J. For all materials to be used on the project, the contractor shall provide the following information:

i. Manufacturer's name

ii. Catalog number

iii. Specifications

iv. Finish Samples (Shingle, Membrane, Flashing, etc.)

v. Any other information necessary to approve the materials

vi. Safety Data Sheets (SDS) shall be submitted along with the product data for any potentially hazardous materials such as adhesives and flux materials. Use Low Volatile Organic Compound (VOC) materials wherever possible.

K. As-built Drawing - accurate as-built of the new roof system.

L. Manufacturer Warranty Fully Executed

i. Asphalt Shingle Roof System for 25 years minimum (wind resistance 150 mph)

ii. EPDM Roof System for 30 years minimum (wind resistance 120 mph)

3. Government Resources:

The contractor is responsible for providing all resources to complete the project. The Government will not provide any equipment or services.

4. Omissions:

This scope of work may not cover all specified activities, steps, and procedures required to supply the contract product. In cases where work is not specifically shown or specified, contract shall include miscellaneous items, appurtenances, devices, and materials obviously necessary for a sound, secure and complete installation. In case of omission, the normal industry, state, or federal standards, practices, specifications, and/or guides shall prevail. In no instance shall an omission be reason to produce less than an acceptable product.

5. Quality Control and Quality Assurance:

The contractor is responsible for the quality control of the contract work. The government has the right to inspect and test all items called for by the contract for Quality Assurance, to the extent practicable at all times and at all places during the term of the contract.

6. Other Contracts:

The Government may undertake or award other contracts for additional work not related to this contract, the Contractor shall fully cooperate with other Contractors and Government employees. The contractor shall not commit or permit any act, which will interfere with the performance of work by another contractor, or by Government employees.

7. Delivery, Receiving, and Storing Materials:

Deliver materials in the manufacturer's unopened bundles and containers bearing the manufacturer's brand name. Keep materials dry, completely covered, and protected from the weather. Store according to manufacturer's written instructions. Store roll goods on end in an upright position or in accordance with manufacturer's recommendations. Immediately before laying, store roofing felt for 24 hours in an area maintained at a temperature not lower than 50 degrees F. Storage areas for materials, equipment, and dumpsters will be coordinated with the Technical Point of Contact. A flat grassed area is available on the west side of the administration building for the contractor's use.

Security of equipment and materials is the contractor's responsibility. The contractor is responsible for receiving and unloading of delivered goods. Government employees will not receive material or supplies for the contractor and will not be responsible for damage or theft of contractor equipment or material. All storage areas shall be restored to their pre-construction condition at the contractor's expense and verified as such by the Government TPOC.

8. Clean Up:

Contractor shall inspect all equipment and materials used to prevent the release of any contaminants to the environment. The Contractor shall practice good housekeeping to maintain a safe job site. Remove rubbish and debris from the site daily, do not allow it to accumulate inside or outside of the building. The contractor shall keep the work area, including any storage areas, free from the accumulation of waste materials. Upon completing work, the contractor shall remove all tools, equipment, and materials that are not the property of the government and shall clean up the job site to the satisfaction of the Government.

9. Sustainability:

EPA Designated: Under the Comprehensive Procurement Guidelines (CPG) program, the Environmental Protection Agency (EPA) designates products that are or can be made with recovered materials and recommends practices for buying these products. Any designated product that is being offered or supplied under this contract shall meet the minimum recommended content levels as identified under the CPG program. Visit https://www.epa.gov/smm/comprehensive-procurement-guideline-cpg-program for a complete list of designated products and the associated recommended contents levels. Offerors must be able to demonstrate that each offered products meets minimum content levels upon request.

Bio-Based: The United States Department of Agriculture (USDA) designates certain biobased products for federal procurement and specifies minimum bio based content levels for those products. Any designated product that is being offered or supplied under this contract shall meet USDA BioPreferred's minimum bio based content level. Visit the BioPreferred web site https://www.biopreferred.gov /BioPreferred/faces/pages/ProductCategories.xhtml for the complete list of designated products and the associated minimum bio based content level requirements.

10. Manufacturer's Warranty:

Furnish the asphalt shingle manufacturer's standard 25 year warranty for the (wind resistance 150 MPH) asphalt shingles. Furnish the EPDM manufacturer's standard 30 year warranty (wind resistance 120

The warranty must run directly to the Government. The warrant must MPH) for the EPDM roof system.

have a "no dollar limit,", shall covers full system watertightness, and is from the single source manufacturer.

Part 2 Materials:

1. All products shall be new, unused and to the satisfaction of the Technical Point of Contact prior to installation. The source of materials which will affect the appearance of the finished work shall not be changed after the work has started except with the Technical Point of Contact's written approval. All products shall be installed in accordance with the manufacturer's or supplier's recommendations.

Asphalt Shingle Roof System:

2. Shingles: Provide laminated asphalt shingles, UL 2218 Class 4 impact resistance, ASTM D3462 compliant, ASTM D7158 Class H wind resistance (150 MPH), algae-resistant, minimum 360 pounds per square with manufacturer's standard 25 year warranty. Provide full shingle sample and manufacturer's standard size samples of materials and products for color and finish selection by TPOC.

3. Hip and Ridge Shingles: Install mineral-surfaced asphalt hip and ridge shingles specifically manufactured for use on roof hips and ridges. Shingles shall be self-sealing, impact-resistant, and match the color and manufacturer of the field shingles. Installation shall conform to the shingle manufacturer's instructions to ensure proper adhesion, wind resistance, and a uniform finished appearance along all hips and ridges.

4. Shingle Starter Strip: Provide a shingle starter course along all eave and rake edges, consisting of full-width strips of mineral-surfaced asphalt shingles with tabs removed or manufacturer-supplied starter strips. Starter strips shall be installed in accordance with shingle manufacturer's instructions to ensure proper alignment, wind resistance, and waterproofing of the roof edge.

5. Self-Adhered Ice and Water Barrier: Self-adhering leak barrier or ice dam underlayment must comply with ASTM D1970/D1970M for sealability around nails.

A. 36" out from the centerline of all eaves, valleys, rakes, and roof edges

B. 24"out from side walls/chimney and 6" vertically up sidewalls/chimney

C. 18"out from plumbing vents

6. Roof Underlayment: Asphalt-saturated felt conforming to ASTM D4869/D4869M Type II, number 30, without perforations for use as an underlayment.

7. Asphalt Roof Cement: ASTM D4586/D4586M, Type II.

8. Asphalt Primer: ASTM D41/D41M.

9. Nail Type: Hot-dipped galvanized steel ring-shank roofing nails with a 3/8" diameter head, meeting ASTM F1667, minimum 1-1/2" length.

10. Plywood Roof Decking: Provide APA-rated exterior-grade plywood roof decking, minimum 3/4" thick, CDX grade or better, free from visible defects, dry, and suitable for asphalt shingle installation.

Assume 10% of existing plywood decking to be replaced where deteriorated or damaged, using plywood matching the existing thickness and grade.

11. Elastomeric Vent Boots: The vent boot shall have an elastomeric flange made of ultraviolet resistant EPDM or similar synthetic rubber for flexibility and weatherproofing. The metal base shall be corrosion-resistant aluminum or galvanized steel. It must fit standard pipe sizes (1.5" to 6") and accommodate roof pitches from 2:12 to 12:12. The materials should withstand temperature ranges from -40F to 240F and comply with ASTM D2000 standards for elastomeric products.

12. Aluminum Metal Flashing: 0.024" (20 Gauge) Thick Corrosion-Resistant Aluminum Alloy 3105. It must be pre-painted or mill finish color white, compatible with adjoining roofing materials, and shaped to fit roof details such as valleys, chimneys, and vents. The flashing shall withstand temperature extremes from -40F to 240F, resist corrosion, and comply with local building codes and industry standards for roofing materials.

13. Copper Metal Flashing: 0.027" (20 oz.) Cold-Rolled Copper Sheet, ASTM B370 compliant. Flashing must be natural (mill finish) copper, uncoated unless otherwise specified, and fully compatible with adjacent roofing and masonry materials. It shall be custom formed to fit all roof details including valleys, chimneys, step flashings, dormers, and vent penetrations. All joints shall be lapped and soldered or mechanically fastened with copper or stainless steel fasteners to ensure a watertight seal. Copper is only to be used with existing copper flashing (chimneys) and ductwork to prevent galvanic corrosion from dissimilar metals.

14. Drip Edge: 0.024" (20 Gauge) Thick Corrosion-Resistant Aluminum Alloy 3105, Type D

Exhaust Fans and Air Intake Vents:

15. Replace Roof Fans: Remove, Dispose, and Replace (3) 1800 CFM Heavy Gauge Aluminum Roof Axial Exhaust Fans. Provide fans with a bird screen, 1/2 horsepower motor, and adjustable temperature thermostat. Existing roof fan is approximate size is 20"x20". Contractor to measure and verify prior to providing submittal. Provide proper flashing under new roof shingles to provide a watertight penetration.

16. Replace Fresh Air Intake Forward Curved Vent: Remove, Dispose, and Replace (2) Heavy Gauge Aluminum Roof Top fresh air intake forward curved vent. Provide vent with bird screen. Existing vent is approximate size is 12"x12". Contractor to measure and verify prior to providing submittal. Provide proper flashing under new roof shingles to provide a watertight penetration.

Gutter/Trim Removal & PVC Replacement (Approximately 250 Linear Feet):

17. Remove and dispose of all existing wood gutters, downspouts, fascia boards, soffit boards, and associated fasteners without damaging adjacent roofing or siding; repair any incidental damage at no additional cost. Remove and replace all existing soffit, facia, and crown molding except where existing aluminum gutters are to remain (includes lower entrance roof, gable end rakes, and dormers). The existing crown molding shall be replaced with a PVC Crown molding. Install new fascia and soffit boards using solid cellular PVC boards, with fascia sized minimum 1"x8" and soffit a minimum of 1/2" thick, securely fastened with stainless steel fasteners. Provide pressure-treated wood or PVC blocking and nailers as needed to ensure full structural support for the new trim and gutter system, particularly at corners, downspout outlets, and expansion joints. Ensure all cuts are clean, joints are sealed, using a PVC-compatible adhesive/sealant, and the finished assembly is square, true, and ready to receive the new aluminum gutter system. All debris shall be removed from the site and the work area left clean.

Aluminum Gutter: (Approximately 250 Linear Feet)

18. Provide and install a commercial-grade aluminum gutter and downspout system fabricated from 3105- H14 or 3003-H14 aluminum alloy with a minimum thickness of 0.050", finished with a factory-applied polyvinylidene fluoride (PVDF) coating. Gutters shall be box-style, sized minimum 6", sloped at style K, 1/16" per foot, and installed in continuous lengths with sealed, riveted joints and expansion joints every 40feet. Downspouts shall match existing locations and be rectangular, minimum 3"x4", heavy-duty straps and stainless steel fasteners, discharging to grade to transition tightly to existing drains. All accessories, including end caps, miters, and brackets, shall be color-matched aluminum; hidden hangers spaced no more than 16" on center are required. Installation shall conform to SMACNA guidelines and include UV-stable sealants at all joints.

Ethylene Propylene Diene Monomer (EPDM) roof system:

19. EPDM: Membrane shall be fully adhered 90 mil nominal thickness, meeting ASTM D4637, Type 1 EPDM, watertight seams, and black in color.

20. Concrete Sealer and Vapor Barrier: Provide a two-component, liquid-applied urethane coating, one or minimum dry film thickness of 20-30 mils, to form a tough elastomeric water-resistant coating able to bridge cracks followed by application of a membrane vapor barrier, minimum dry film thickness of 40-60 mils. Install per manufacturer's requirements.

21. Walk Pads: The pads shall be made of UV-resistant, reinforced rubber or compatible EPDM material, with a minimum thickness 1/4" to prevent membrane wear and damage.

22. Cover Board: Shall be 1/2" thickness, Gypsum Fiber, fully waterproof bonding, and Suitable for exterior applications that are subject to permanent exposure to the weather or moisture.

23. Insulation: Shall be inimum of R-30 insulating value, a Extruded polystyrene foam board m, M ensure insulation system and facer material is compatible with membrane application specified and as approved by the roof membrane manufacturer.

24. Seam Tape: Shall be double-sided synthetic rubber tape, minimum 0.03" thick, minimum 3" wide.

Utilize seam tape as recommended by the manufacturer's printed data for forming watertight bond of EPDM sheet materials to each other. A minimum 6-inch-wide tape is required for seam seals along lines of mechanical attachment of membrane.

25. Lap Splice Adhesive: Shall be Low volatile organic compound (VOC) synthetic rubber adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for forming watertight bond of EPDM sheet membrane materials to each other.

26. Bonding Adhesive: Shall be Low volatile organic compound (VOC) synthetic rubber adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for bonding EPDM membrane materials to insulation, wood, metal, concrete or other substrate materials.

27. Lap Cleaner, Lap Sealant, and Edge Treatment: Shall be as supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

28. Water Cutoff Mastic/Water Block: Shall be as recommended by the manufacturer's printed data.

29. Membrane Flashings and Flashing Accessories: Shall be membrane flashing, including self-adhering membrane flashing, perimeter flashing, flashing around roof penetrations, that is minimum 0.045-inch cured EPDM, as recommended by the roof membrane manufacturer or minimum 0.055-inch-thick uncured EPDM sheet in compliance with ASTM D4811/D4811M, Type I. Use cured EPDM membrane to the maximum extent recommended by the roof membrane manufacturer.

30. Flashing Tape: Shall be EPDM-backed synthetic rubber tape, minimum 6" wide as supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

31. Mechanical Fasteners: Shall be coated, corrosion-resistant fasteners as recommended by the roof membrane manufacturer and meeting the requirements of FM 4470 and FM APP GUIDE for Class I roof deck construction and the wind uplift resistance specified. As supplied and warranted for the substrate type(s) by EPDM sheet manufacturer and recommended by EPDM sheet manufacturer's printed data.

32. Stress Plates for Fasteners: Shall be Flat corrosion-resistant round stress plates as recommended by the roof membrane manufacturer's printed instructions and meeting the requirements of FM 4470; not less than 2" in diameter. Provide pre-formed discs to prevent dishing or cupping.

33. Auxiliary Fasteners: Shall be Corrosion resistant screws, nails, or anchors suitable for intended attachment purpose and as recommended by the roof membrane manufacturer to meet + mph 120150 design standard.

34. Flashing Cement: Shall be a self-vulcanizing butyl compound flashing cement for splicing laps.

35. Caulk: Shall be Fast-Cure, Low VOC, High Solids Polyurethane Sealant, Exterior grade adhesive sealant product, compatible with new membrane material, as recommended by manufacturer, and the color shall match the surrounding substrate

36. Wood Blocking: Provide continuous pressure-treated wood blocking at all roof perimeters, curbs, and penetrations as required to support membrane terminations, metal edge flashings, and other roofing components. Blocking shall be a minimum of #2 grade Southern Yellow Pine or equivalent, pressure-treated for using non-oil-based preservatives compatible with roofing materials. Wood shall be sized to match the height of adjacent insulation layers and installed flat, level, and securely anchored 12" on center or less. All fasteners used shall be corrosion-resistant and compatible with treated wood. Blocking shall be kiln-dried after treatment and joints shall be tight-fitting to provide a continuous, stable substrate for roofing system components. Blocking shall be a minimum 7-1/4" in height (6" of R-30 insulation & 1 /2" cover board).

37. Perimeter Aluminum Flashing: Provide heavy-duty extruded aluminum perimeter edge flashing system at all roof edges, fabricated from minimum 0.080-inch-thick 6063-T5 or 6061-T6 aluminum alloy, with a continuous drip edge profile and a raised vertical face extending not less than 4" above the roof membrane termination and continuing vertically down the exterior wall a minimum of 6". The metal edge shall be secured with continuous cleats fabricated from minimum 0.063-inch aluminum, mechanically fastened to pressure-treated wood blocking at a maximum of 12" on center, with fasteners positioned no more than 6" from each end. All joints shall be fully backed with internal splice plates and sealed using manufacturer-approved butyl sealant or gasketed joints to ensure a watertight seal and accommodate thermal movement. Exposed aluminum surfaces shall be finished with a factory-applied, high-performance polyvinylidene fluoride (PVDF) fluoropolymer coating containing a minimum of 70% resin by weight, conforming to AAMA 2605 specifications for superior color retention, chalk resistance, and durability suitable for exterior architectural applications. Color shall be white. The flashing system shall integrate with the EPDM roof membrane using a compatible termination bar and membrane cover strip, fully adhered and sealed per manufacturer's requirements.

Part 3 Execution:

1. All onsite work shall be coordinated with the Technical Point of Contact prior to start of mobilization.

The contractor shall take measures to protect the existing work areas during construction.

2. Although work is not specifically shown or specified, contract shall include miscellaneous items, appurtenances, devices, and materials obviously necessary for a sound, secure and complete installation.

3. Existing Conditions: Contractor shall be responsible for the protection of all existing equipment and work areas from damage during construction. Any items not included in the statement of work that are damaged or altered during construction shall be restored to their pre-construction condition at the contractor's expense and verified as such by the Government TPOC.

Access:

4. Access to the insulated attic of the project office is through the exterior single door access and through an internal access hatch (21"x45").

Pre-Roof Demolition:

5. Chimney Restoration: Pressure wash (2) existing masonry chimneys to remove dirt, debris, and biological growth. Inspect and re-point deteriorated mortar joints using Type N mortar conforming to ASTM C270, color-matched to existing where feasible. Allow mortar to cure per manufacturer's guidelines. After curing, apply a breathable, siloxane-based water repellent sealer in accordance with manufacturer's instructions. Sealer must meet ASTM E514 for water repellency and be vapor permeable.

All work shall be completed and inspected prior to demolition of the existing asphalt roof.

6. Lightning Protection System: As part of the roof replacement project, the existing lightning protection system (LPS) shall be carefully removed, labeled, and stored by a qualified contractor specializing in UL-listed lightning protection systems. All components, including air terminals, conductors, bonding jumpers, and grounding electrodes, must be protected from damage or loss during removal and stored in a secure, weather-protected location. Upon completion of the new roof installation, the LPS shall be reinstalled in accordance with NFPA 780 and UL 96A standards, maintaining the original configuration or improving it as required for compliance. All penetrations through the new roofing system shall be flashed and sealed per manufacturer's recommendations to preserve roof warranties and watertight integrity.

Roof Demolition:

7. Completely remove and dispose of the existing roofing system down to the structural substrate, including asphalt shingles, ice and water shield, underlayments, flashing, membranes, cover boards, insulation, mechanical fasteners, pressure-treated nailers, sealants, and blocking. Cut flush or remove any objects such as abandoned fasteners that may damage the new roofing system. Prepare the exposed deck--whether wood, concrete slab, or steel--so it is clean, dry, rigid, smooth, and free of cracks, holes, sharp edges, or other defects. For the flat roof, remove all wood blocking down to steel deck/concrete, repair visible cracks or penetrations and seal all in the concrete deck. Protect existing roof components, including gutters, adjacent flat roofs, and the lightning protection system, during demolition; remove and reinstall lightning protection equipment over the new roof. Do not disturb adjacent systems unless specifically directed. Immediately notify the Technical Point of Contact (TPOC) of any conditions or discrepancies that could impact demolition or new work.

Gutter/Trim Removal & PVC Replacement (Approximately 250 Linear Feet):

8. Remove and dispose of all existing wood gutters, downspouts, fascia boards, soffit boards, and associated fasteners without damaging adjacent roofing or siding; repair any incidental damage at no additional cost. Install new fascia and soffit boards using solid cellular PVC boards, with fascia sized minimum 1"x8" and soffit a minimum of 1/2" thick, securely fastened with stainless steel fasteners.

Provide pressure-treated wood or PVC blocking and nailers as needed to ensure full structural support for the new trim and gutter system, particularly at corners, downspout outlets, and expansion joints. Ensure all cuts are clean, joints are sealed, using a PVC-compatible adhesive/sealant, and the finished assembly is square, true, and ready to receive the new aluminum gutter system. All debris shall be removed from the site and the work area left clean.

Aluminum Gutter & Downspouts: (Approximately 250 Linear Feet)

9. Provide and install a commercial-grade aluminum gutter and downspout system fabricated from 3105- H14 or 3003-H14 aluminum alloy with a minimum thickness of 0.050", finished with a factory-applied polyvinylidene fluoride (PVDF) coating. Gutters shall be box-style, sized minimum 6", sloped at 1/16" per foot, and installed in continuous lengths with sealed, riveted joints and expansion joints every 40 feet.

Downspouts shall be rectangular, minimum 3"x4", heavy-duty straps and stainless steel fasteners, discharging to grade to transition tightly to existing drains. All accessories, including end caps, miters, and brackets, shall be color-matched aluminum; hidden hangers spaced no more than 16" on center are required. Installation shall conform to SMACNA guidelines and include UV-stable sealants at all joints.

Asphalt Shingle Roof Installation:

10. VERIFICATION OF CONDITIONS: 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 driven flush with the deck.

11. WOOD DECK: Repair 10% of existing plywood decking to be replaced where deteriorated or damaged, using plywood matching the existing thickness and grade.

12. SELF-ADHERED ICE AND WATER BARRIER FLASHING: From the eaves to a point 36" above gutters edge and inside interior wall line, apply one layer of Self-Adhered Ice and Water Barrier. It shall be installed to a point 36" from centerline of each roof valley. Follow membrane manufacturer's printed installation instructions.

13. METAL FLASHING: Provide and install sheet metal flashing and counterflashing at all roof penetrations and transitions, including but not limited to valleys, ridges, eaves, rakes, roof-to-wall intersections, and changes in slope or direction. Flashing shall also be installed around all existing drain piping, waste and vent piping, exhaust piping, ductwork, exhaust fans, chimneys, and similar penetrations to ensure a watertight seal. Flash small, round penetrations with pre-manufactured EPDM black rubber boots having a laminated aluminum compression ring at their base and secure at the top using a stainless steel draw band. All flashing shall be fabricated from corrosion-resistant metal, integrated with underlayment and shingles, and installed in strict accordance with the roofing manufacturer's requirements and applicable building codes.

14. METAL STEPPED FLASHING: For sloping roofs which abut vertical surfaces, provide stepped metal flashing.

15. METAL VENT AND STACK FLASHING: Apply shingles up to point where vent or stack pipe projects through roof and cut nearest shingle to fit around pipe. Before applying shingles beyond pipe, prepare flange of metal pipe vent flashing, by applying a 1/8" thick coating of asphalt roof cement on bottom side of flashing flange. Slip flashing collar and flange over pipe and set coated flange in 1/16" coating of asphalt roof cement. After applying flashing flange, continue shingling up roof. Lap lower part of flange over shingles. Overlap flange with side and upper shingles. Fit shingles around pipe and embed in 1/16" thick coating of asphalt roof cement where shingles overlay flange.

16. CHIMNEY FLASHING: The lead/copper flashing on two brick chimneys on the Administration Building roof shall be made secure, functional and watertight. Flashing may be reused if it is protected during demolition and still functional. New flashing shall be securely fastened into the brick. Work on the chimney flashing shall be neat and professional quality. Provide metal base and counterflashing.

Uniformly coat masonry surfaces which are to receive flashing with asphalt primer. Apply shingles over underlayment up to front face of chimney. Apply metal front base flashing with lower section extending at least 4" over shingles. Set base flashing in a 1/16" coating of asphalt roof cement on shingles and chimney face. Apply metal step flashing at sides in a coating of asphalt roof cement. Embed end shingles in each course that overlaps step flashing with asphalt roof cement. Apply metal rear base flashing over cricket and back of chimney in coating of asphalt roof cement. Apply end shingles in each course up to cricket, and cement in place. Lap base flashing minimum of 3" with metal counterflashing.

17. UNDERLAYMENT:…