Technical_Specifications_and_Contract-Reference_Drawings.pdf

ALLEGHENY LOCK AND DAM #2

SCOPE OF WORK AND SPECIFICATIONS TO REPLACE OPERATIONS BUILDING

POWERHOUSE ROOF

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Table of Contents

ALLEGHENY LOCK AND DAM #2

SCOPE OF WORK AND SPECIFICATIONS TO REPLACE OPERATIONS BUILDING

POWERHOUSE ROOF

SCOPE OF WORK

1. GENERAL REQUIREMENTS

General

1.1.1. Operations Building Powerhouse Roof

1.1.2. Labor and materials

1.1.3. Scuttle structure roof

1.1.4. Existing items

1.1.5. Protection

1.1.6. Existing roof

Safety Requirements

1.2.1. Accident Prevention Plan (APP)

1.2.2. Risk Management

1.2.3. Implementation of SOH Program

1.2.4. Mishap Reporting

1.2.5. Unforeseen Hazardous Material

1.2.6. Damage Reports

1.2.7. Minimum Personal Protective Equipment

1.2.8. Pre-Work Conference

1.2.9. Notes

Contractor data submission Project Government personnel contacts Quality Control

1.5.1. Fire Resistance

Certification of Compliance Bid Submittals

1.7.1. Product Data Submittals

1.7.2. Qualifications of Installer

1.7.3. Manufacturer’s Certificate

1.7.4. Roof Plan

Project/Site Conditions

1.8.1. Reference Drawings

1.8.2. Verification of Field Conditions

1.8.3. Work Areas

1.8.4. Time of Performance

1.8.5. Period of Performance

1.8.6. Permits

Protection of Government Property

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Inspections and Acceptance of Work Demolition and Disposal Points of Contact (POC)

ALLEGHENY LOCK AND DAM #2

SCOPE OF WORK AND SPECIFICATIONS TO REPLACE OPERATIONS BUILDING

POWERHOUSE ROOF

SPECIFICATIONS- ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING

2. GENERAL REQUIREMENTS

References Security Requirements

2.2.1. AT Level I Training

2.2.2. Access and General Protection and Security Policy and Procedures

2.2.3. For contractors who do not require CAC, but require access to a DOD facility or installation

2.2.4. Suspicious Activity Reporting Training

2.2.5. Pre-screen candidates using E-Verify Program

2.2.6. Employee Identification and Background Check

Description of Roof Membrane System Submittals

2.4.1. Shop Drawings

Quality Assurance

2.5.1. Qualification of Manufacturer

2.5.2. Qualification of Applicator

2.5.3. Fire Resistance

2.5.4. Pre-roofing Conference

Delivery, Storage, and Handling

2.6.1. Delivery

2.6.2. Storage

2.6.3. Handling

Environmental Requirements Sequencing Warranty

2.9.1. Roofing System Installer Warranty

2.9.2. Roof Membrane Manufacturer Warranty

2.9.3. Continuance of Warranty

Operations and Maintenance manual/data Conformance and Compatibility

3. Products

Materials

3.1.1. EPDM Sheet

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3.1.2. Energy Performance

3.1.3. Seam Tape

3.1.4. Lap Splice Adhesive

3.1.5. Bonding Adhesive

3.1.6. Lap Cleaner, Lap Sealant, and Edge Treatment

3.1.7. Water Cutoff Mastic/Water Block

3.1.8. Membrane Fasteners and Plates

3.1.9. Roof Insulation below EPDM Sheet

3.1.10. Wood Products

3.1.11. Membrane Liner

3.1.12. Flashing Cement

4. Execution

Examination Application

4.2.1. Special Precautions

4.2.2. EPDM Sheet Roofing

4.2.3. Application Method

Substrate Preparation Application of Insulation

4.4.1. Protection of Aluminum

4.4.2. Connections and Jointing

4.4.3. Reglets

Coordination Requirements Fully Adhered Membrane Application

4.6.1. Tape Seams / Lap Splices

4.6.2. Adhesive Seams / Lap Splices

4.6.3. Perimeter Attachment

4.6.4. Securement at Base Tie-In Conditions

Flashings

4.7.1. General

4.7.2. Membrane Flashing

4.7.3. Flashing Accessories

4.7.4. Flashing at Roof Drain

4.7.5. Flashing along Parapet Walls

Isolated Paver Blocks Set-On Accessories

Correction of Deficiencies Clean Up Protection of Applied Roofing

4.12.1. Temporary Flashing for Permanent Roofing

4.12.2. Temporary Walkways, Runways, and Platforms

Field Quality Control

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4.13.1. Construction Monitoring

4.13.2. Roof Drain Test

Information Card

5. Measurement and Payment

SUMMARY OF REQUIRED SUBMITTALS

1. Accident Prevention Plan, Section 1.2.1

2. Activity Hazard Analyses (AHAs), Section 1.3

3. Credentials of Designated Persons to Include: SSHO, DR, CP, Fall Protection, QP, Electrical, Material Handling Equipment operators, Section 1.3

4. Quality Control Plan, Section 1.5

5. Product Data Submittals, Section 1.7.1

6. Qualifications of Installer, Section 1.7.2

7. Manufacturer’s Certificate, Section 1.7.3

8. Roof Plan, Section 1.7.4

9. Demolition Plan, Section 1.11

10. Roofing System Installer Warranty, Section 2.9.1

11. Roof Membrane Manufacturer Warranty, Section 2.9.2

12. Operations and Maintenance manual/data, Section 2.10

Appendix 1 – Pictures

1. Figure 1 – Picture of roof from scuttle structure viewing downstream

2. Figure 2 – Contractor to remove the mounting plates, flash over, and seal the hole into the Dryvit system – 2 locations

3. Figure 3 – Picture of roof viewing scuttle structure upstream, scuttle roof remains as is32

4. Figure 4 – Picture of flag pole mount (to be flashed over), flashing, electrical conduit (to be brought up to code), and three roof drains and drain heating wires that need replaced .. 32

5. Figure 5 – LOMA system- needs to cribbed and remain in place while during roof construction

6. Figure 6 – Part of LOMA system to be cribbed and remain in place

7. Figures 7 and 8 – Communication lines will remain as is

8. Figure 9 – Flashing around scuttle structure base

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POWERHOUSE ROOF

SCOPE OF WORK

1. GENERAL REQUIREMENTS

General The work is located at 7451 Lockway West, Pittsburgh, PA 15206-1104. The site of the work may be reached from state and local roads and streets. All work shall be done in a professional manner and in accordance with industry standards. The general description of the work pertains to the following building.

1.1.1. Operations Building Powerhouse Roof

The general description of the work is to furnish all equipment, labor, layout of work, supervision, and materials necessary to complete the work as shown and as specified.

Remove the existing roofing materials down to the concrete deck, roof drains, insulation, vent covers, and gravel stop from an approximately 1,700 square foot building and dispose of properly. Install a new air/vapor barrier on concrete deck and adhere one layer of 3.5-inch Polyiso insulation. Install a new, fully adhered, 60 mil EPDM roofing system, conforming to ASTM D4637/D4637M, with a new flashing system around the perimeter and all roof top penetrations. The roofing system shall have new roof drain inserts equivalent to Firestone TIS #1513, new tapered insulation minimum thickness of 1 inch and the roof shall have a 1/4 inch drop per foot towards the roof drains, and include the addition of any features to ensure positive drainage towards the roof drains. New flashing shall be installed on pipe vents protruding from roof surface. New vent cover and caps shall be installed on the generator exhaust pipe. The existing lights and electric conduit, junction boxes, etc. shall be relocated only if necessary. Once altered, they must be placed back on the new roof in fully working condition and to appropriate codes. Though the cameras have been removed, the camera systems’ mounting plates need to be permanently removed so the flashing can be placed in these areas – see pictures.

1.1.2. Labor and materials

The contractor shall provide all labor and materials necessary to replace the existing built up roof, roof drains, and associated items. Details of the building construction are shown on the attached reference drawings. The work shall include removal and disposal of all roofing materials over the entire roof down to the existing concrete deck, including all flashing, roof drains, flashing around base of the scuttle structure, and installation of new tapered insulation, flashing, roof drains, and all other work to furnish all equipment, labor, layout of work, supervision, and materials necessary to complete the work as shown and as specified.

The Contractor shall be responsible for transport of materials to the site and to prevent demolished materials from entering the river. All material provided in the performance of this contract shall be unused and meet the requirements of the specifications.

1.1.3. Scuttle structure roof

This project does not include replacement of the scuttle structure roof.

1.1.4. Existing items

The EPDM shall have a proper waterproof seal around all existing items that protrude thru or

7 | P a g e from the roof. All fixtures, such as, but not limited to: stairs, grated walkways, hatches, shall be cleaned up, touched up as necessary, and repaired to the satisfactory of the COR. The flagpole mount shall be flashed over and sealed on the inside of the wall.

1.1.5. Protection

If an electrical circuit is altered, that circuit must meet the current code. The LOMA unit shall be cribbed so the contractor can work underneath, removing roofing material and installing the new roofing. The LOMA, and any other surface bearing items, shall have paver blocks on a layer of reinforced membrane or walkpad applied over the completed roof membrane to protect the new roof, as discussed in 4.8 Isolated Paver Blocks. The two communication lines will stay in place and should not be disturbed.

1.1.6. Existing roof

The existing roof is approximately 1,700 square feet and consists of a concrete roof deck.

The Contractor shall verify dimensions and clearances in the field before beginning work. It does not include the roof of the scuttle roof, but does include flashing around the base of the scuttle structure. Roof elevation is approximately thirty feet above lot. See Reference drawings, “AR2 Roof Reference drawings” sheet numbers 3 for details of the existing sloped concrete substrate. The existing roof system is about 4” thick and consists of the following layers over the concrete substrate:

o Mopped asphalt o 2 ply built up roof o 0.5-inch wood fiber board o 3-inches of insulation

Safety Requirements All work shall be performed in accordance with Federal, State, and Local safety requirements, including those specified by the Occupational Safety and Health Administration (OSHA) and the U.S. Army Corps of Engineers Safety and Health Requirements Manual, EM 385-1-1. Where a conflict exists between safety standards/requirements, the Contractor shall comply with the more stringent requirement.

Any employee has the authority to halt any work if unsafe work practices or conditions are identified. The Resource/Project Manager or Lockmaster has the authority to halt all work should it be necessary to protect life or property. Work may not proceed until satisfactory corrective action has been taken. No part of any lost time due to such work stoppage shall be made subject to any claims for extension of time or excess costs or damages sustained by the Contractor, nor will the Contractor be paid for work not performed as a result of the stop order.

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

https://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_385- 1-1.pdf?ver=2015-04-09-142531-467.

1.2.1. Accident Prevention Plan (APP)

Due to the nature of anticipated work, the Contractor may submit an abbreviated Accident Prevention Plan (APP). The Abbreviated APP shall be developed in accordance with EM 385-1-1 Appendix A, Paragraph K. In addition to the items specified as part of the Abbreviated APP, other programs and procedures pertinent to the Contract’s anticipated activities shall be submitted as appendices to the APP, to include, but not limited to, 8 | P a g e

“Hazardous Energy Control Program and Procedures” (12.A.01) and “Fall Protection and Prevention Plans” (21.D). The APP and applicable appendices shall be submitted to the Contacting Officer within 15 calendar days after receipt of the Notice to Proceed. The APP shall be reviewed and accepted by the Contracting Officer prior to any commencement of work.

The abbreviated APP Form, Form A-01, may be used to ensure each area of the required information has been provided.

1.2.2. Risk Management

Risk management is a business process that includes the identification, assessment, and prioritization of risks, followed by coordinated and economical application of resources to minimize, monitor, and control the probability and/or impact of unfortunate events to an acceptable level. A risk management assessment tool, such as activity hazard analysis (AHA), job safety analysis (JSA), or job hazard analysis (JHA) shall be developed by the contractor performing the work for each activity, task, or defined feature of work (DFOW).

The assessment shall identify the work sequence, specific anticipated hazards, site conditions, equipment, materials, personnel, and the control measures to be implemented to control the hazards. A Risk Assessment Code (RAC) shall be assigned to each job step based on the residual risk remaining after controls are implemented. A RAC shall then be assigned to the overall activity consistent with the highest RAC identified for the job steps. If developed by a subcontractor, the Prime Contractor shall review and approve the assessment before submission to the Contracting Officer. The Risk Assessment shall be signed by the SSHO, Superintendent, QC Manager, and any subcontracting Foreman's performing the work. If Qualified or Competent Persons are required for a particular activity, they shall be identified and included in the assessment, and their competency/qualification identified. Work shall not begin until the assessment has been accepted by the Contracting Officer and discussed with all engaged in the activity.

These risk assessment tools are considered living documents and shall be updated as needed. If the RAC increases from what was originally accepted by the Contracting Officer, the assessment shall be re-submitted for acceptance prior to work proceeding. Changes that do not increase the RAC are not required to be resubmitted for acceptance.

The risk assessment shall be developed in accordance with EM 385-1-1 Section 1, or as specified by the Contracting Officer. Risk assessments shall be submitted for review at least 15 working days prior to the start of the activity, task, or defined feature of work is set to begin. The Government reserves the right to require the Contractor to revise and resubmit any documents if they fail to effectively identify the work sequence, specific anticipated hazards, site conditions, equipment, materials, personnel, and the control measures to be implemented.

Each employee performing work as part of an activity, task, or defined feature of work shall review the risk assessment for the activity and sign the signature log designated for the assessment prior to beginning work. A signature log shall be maintained for each risk assessment.

Completed risk assessments need not be submitted at the time of the APP submission, but the Contractor shall identify each activity, task, or DFOW that will require a risk assessment to be completed at the time of submission.

1.2.3. Implementation of SOH Program

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Based on the limited-scope of this Contract, in lieu of appointing a Site Safety and Health Officer (SSHO) at the project site, the Contractor may appoint a Designated Representative (DR) at the site to function as a collateral duty safety person, provided that an individual meeting the requirements of an SSHO as stated in EM 385-1-1 Section 1, Paragraph A.17 supervises the functioning of the DR. The DR shall perform safety programs and tasks as prescribed by the SSHO and report safety findings to the SSHO. SSHO or DR shall be on site at all times work is being done.

Note: Any activities that have a RAC of high or extremely high retracts the allowance to only have a DR, and shall have an SSHO on site.

1.2.4. Mishap Reporting

A mishap is any unplanned, undesired event that occurs during the course of work being performed, to include, accidents, incidents, and near misses. All mishaps shall be reported to the Contracting Officer within 24-hours after notification from the affected employee(s).

Contractors are responsible for maintaining an OSHA Log of Work Related Injuries and Illnesses (Form 300) and complying with all reporting and recordkeeping requirements specified in 29 CFR 1904.

1.2.5. Unforeseen Hazardous Material

USACE shall identify and communicate all known hazardous materials such as PCB, lead paint, asbestos, and other OSHA regulated chemicals (i.e. 29 CFR 1910.1000) in which the Contractor may come into contact with during the course of activities. If material is encountered that was not indicated, but may be hazardous to human health upon disturbance, that portion of the work shall stop and the Contracting Officer immediately notified. The Government will determine within 14 days of notification if the material is or is not considered hazardous. If the material is not hazardous or poses no danger, the Government will direct the Contractor to proceed without change. If the material is determined to be hazardous or dangerous and handling of the material is necessary to accomplish the work, the Government will issue a modification pursuant to FAR 52.243-4, Changes and FAR 52.236-2, Differing Site Conditions.

1.2.6. Damage Reports

All instances where Government materials supplies, property, and/or equipment are damaged shall be reported immediately to the Contracting Officer and Lockmaster.

1.2.7. Minimum Personal Protective Equipment

Personal Protective Equipment (PPE) is governed in all areas by the nature of the work that personnel are performing and should be described in the applicable Activity Hazard Analysis (AHA). Mandatory PPE, at minimum, shall include: hard hat, long pants, safety toe shoes/boots, and short sleeve shirts.

1.2.8. Pre-Work Conference

The Contractor shall attend a pre-work conference, prior to the initiation of installation work under this contract. During the pre-work conference, the Contractor's APP, AHAs, and plans, programs, and procedures will be discussed, thus the Contractors submittal shall be accepted by the Contracting Officer prior to this meeting. Work shall not be started until all submittals have been accepted and the pre-work conference completed.

1.2.9. Notes

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The Contractor shall provide Competent Persons in accordance with EM 385-1-1 and where specified herein. Competent Persons shall be designated in writing and shall meet the requirements for the specific activity for which they are designated. Competent Persons shall be on-site during all times work that present the hazards associated with their competency is being performed.

Contractor data submission The Contractor shall submit the following:

1. Abbreviated Accident Prevention Plan (APP)

2. Activity Hazard Analyses (AHAs)

3. Credentials of Designated Persons to Include: SSHO, DR, CP, Fall Protection, QP, Electrical, Material Handling Equipment operators All contractor data submissions shall be submitted to:

U.S. Army Corps of Engineers Pittsburgh District ATTN: OPT-M (Joe Ostrosky) 1000 Liberty Avenue Pittsburgh, PA 15222-4186 Phone: 412-395-7191

Project Government personnel contacts Pre-quote site visits are encouraged. Pre-work notifications are required. Coordination with the projects for early planning and tentative schedule compilation purposes and schedule submission is expected. Advance notice to the projects prior to the inspection visits is required. The appropriate Government contact is listed by location, along with their telephone number, as shown above.

Quality Control The contractor shall complete and submit a Quality Control Plan. There shall be one qualified Superintendent and one qualified Quality Control inspector. The Safety person and the Quality Control inspector may be the same person and may be the DR. The quality control system shall consist of plans, procedures, and organization necessary to produce an end product which complies with the contract requirements. Cover all construction operations, both onsite and offsite, and be keyed to the proposed construction sequence.

The project superintendent will be held responsible for the quality of work and is subject to removal by the Contracting Officer. The Contracting Officer reserves the right to conduct any inspections or perform any tests deemed necessary at any time during the execution of the contract to determine conformance with the requirements of theses specifications.

Superintendent and QC shall be on site at all times work is being done.

1.5.1. Fire Resistance

Complete roof covering assembly must:

o Be Class A rated in accordance with ASTM E108, FM 4470, or UL 790;

o Be listed as part of Fire-Classified roof deck construction in the UL RMSD or

Class I roof deck construction in the FM APP GUIDE.

o FM or UL approved components of the roof covering assembly must bear the appropriate FM or UL label.

Certification of Compliance

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For all proposed equipment or materials to be furnished under this contract, the Contractor shall furnish a statement signed by an official authorized to certify on behalf of the manufacturer of a product, system, or material, attesting that the product, system, or material meets the specified requirements. The statement must be dated after the award of the contract, must state the Contractor's name and address, must name the project and location, and must list the specific requirements which are being certified. The Certificate of Compliance shall be submitted prior to shipment of equipment or materials or the incorporation of equipment or materials into the finished work. In no case shall the Government’s right to inspect supplies under the inspection provisions of this contract be prejudiced. The Government has the right to reject defective supplies or services within a reasonable time after delivery by written notification to the Contractor. The Contractor shall in such event promptly replace, correct, or repair the rejected supplies or services at the Contractor’s expense.

Bid Submittals The contractor shall provide submittals for Government Approval. The Government reserves the right to require the Contractor to resubmit any item found not to comply with the contract.

This does not relieve the Contractor from the obligation to furnish material conforming to the plans and specifications. It will not prevent the Contracting Officer from requiring removal and replacement of nonconforming material incorporated in the work.

1.7.1. Product Data Submittals

For evaluation purposes, the bidder shall submit for approval product literature for the roof membrane, insulation, adhesives, roof edging, and accessories. Product data shall include catalog cuts, specifications, or other descriptive data for materials proposed for use, including copies of Manufacturer’s warranties. All appropriate descriptive data shall be clearly indicated on the submittal.

1.7.2. Qualifications of Installer

Roofing system installer shall be approved, authorized, or licensed in writing by the roofing system manufacturer and shall have at least the minimum years’ experience required by the manufacturer as an approved, authorized, or licensed installer with that manufacturer and be approved at a level capable of providing the specified warranty.

1.7.3. Manufacturer’s Certificate

Submit certificate from the roof system manufacturer attesting that the installer has the proper qualifications for installing tapered roof systems. Installer must possess a minimum of five years’ experience with similar projects, unless otherwise approved by the Contracting Officer.

1.7.4. Roof Plan

Submit a Roof Plan that displays the layout of insulation and how it will be tapered to ensure positive drainage and as required to maintain the minimum 1 inch insulation thickness.

Additionally, provide manufacturer recommendations for fastener attachment patterns of insulation at the field, perimeter, and corners of the roof.

Project/Site Conditions

1.8.1. Reference Drawings

Attached Reference Drawings show existing conditions to the best knowledge of the

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Government. Unless otherwise noted, dimension, elevations, and other features shown on contract drawings, are generally based on the reference drawings supplemented by field surveys. The Government cannot guarantee the accuracy of the dimensions, elevations, and features shown on reference drawings or on contract drawings which are based on the reference drawings, and it shall be the responsibility of the Contractor, whenever necessary, to verify all elevations and the dimensions by measurements in the field. All elevations are referenced to the local datum used for the original construction of the structure. The Contractor shall verify elevations and dimensions before laying out the work. The Contracting Officer shall be notified of any discrepancies prior to commencing work.

1.8.2. Verification of Field Conditions

The Contractor shall verify all dimensions and conditions in the field and shall advise the Contracting Officer of any discrepancy before performing any work.

1.8.3. Work Areas

Neither the contractor nor the contractor’s employees will be permitted inside of the building for any reason. Transport of materials and equipment shall be the responsibility of the Contractor. The Contractor shall be fully responsible for determining the methods used to transport materials and equipment to and from the areas as well as the removal of waste materials from such spaces. The Contractor shall ensure that his operations will not interfere with the operation of the project or the duties of project personnel. Work area will be coordinated and agreed on with the Lockmaster, dependent on other contracts being carried out at the time. (See 1.12 POC)

1.8.4. Time of Performance

The Contractor shall notify the Points of Contact (POCs section 1.12.) prior to start of work.

The Contractor shall schedule work through the POCs. The Contractor shall coordinate work with the POCs NLT 3 days before starting work. Work shall be completed with-in sixty (60) days of start date. Other contractors may be working in the same area performing other work. The contractor shall execute work in a manner so as not to impede other contract work. The Contractor shall confine all operations at the work site between the hours of 7:30 AM and 4:00 PM, Monday through Friday, unless otherwise approved. Work will not be permitted on weekends or Federal holidays unless otherwise approved. Work shall be scheduled so that all work shall be completed in one construction season.

1.8.5. Period of Performance

The Contractor shall complete the work at all locations within 120 calendar days after written notice of Contract Award.

1.8.6. Permits

The Contractor shall be responsible for obtaining any licenses and permits and complying with any laws, codes, and regulations applicable to the execution of this work as required federally and by the State of Pennsylvania.

Protection of Government Property The contractor shall protect all government property during the performance of this contract.

All damage to existing government property as a result of the contractors work shall be repaired or replaced to the satisfaction of the Contracting Officer. Exposed roof and building interior shall be protected at all times. At areas where existing roofing materials have been

13 | P a g e removed, the contractor shall install and maintain temporary protection from the weather until permanent installation of roofing materials can be made. The Contractor shall coordinate roof demolition with the Contracting Officer. Work area shall be cleaned by the contractor after construction is complete.

Inspections and Acceptance of Work Notwithstanding other provisions of this contract, all materials and work to be performed under this contract shall be inspected and accepted by the Contracting Officer. The Contracting Officer shall be the individuals solely authorized to reject materials, disapprove or approve any work in progress, or order or direct any revision or change to the plans and specifications as presently shown and stated.

Demolition and Disposal Contractor shall submit demolition plan, per EM 385-1-1, section 23.A.01. All existing roofing materials shall be removed. All existing reglets, metal sealing strips, membranes and other material shall be removed and disposed of, without damaging the underlying concrete deck.

All materials removed in the performance of this contract and not reused shall become the property of the contractor and be disposed of offsite in accordance with Federal, State, and Local regulations. On-site burning will not be permitted, and materials will not be permitted to fall into the river.

Points of Contact (POC) Prior to commencement of any work being performed on site, the contractor shall participate in a Pre-work Meeting with the Administrative Contacting Officer (ACO) and the Lockmaster on-site.

• Allegheny Lock and Dam #2 L/D Lockmaster – Paul Meininger 412-661-2217 louis.p.meininger@usace.army.mil

• ACO – Denise Polizzano (412) 395-7680 Denise.M.Polizzano@usace.army.mil

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POWERHOUSE ROOF

SPECIFICATIONS- ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING

2. GENERAL REQUIREMENTS

References The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. Latest reference version should always be used.

o American Society of Civil Engineers (ASCE) o ASCE 7 - Minimum Design Loads for Buildings and Other Structures o ASTM International (ASTM) o ASTM D4637/D4637M - EPDM Sheet Used in Single-Ply Roof Membrane o ASTM D4811/D4811M - Standard Specification for Non-vulcanized

(Uncured) Rubber Sheet Used as Roof Flashing o ASTM D6369 - Design of Standard Flashing Details for EPDM Roof

Membranes o ASTM E108 - Fire Tests of Roof Coverings o FM GLOBAL (FM) o FM 4470 - Single-Ply, Polymer-Modified Bitumen Sheet, Built-up Roof

(BUR), and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction o FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/ o National Roofing Contractors Association (NRCA) o NRCA RoofMan - The NRCA Roofing Manual Single Ply Roofing Industry

(SPRI)

o ANSI/SPRI RD-1 - Performance Standard for Retrofit Drains o U.S. Department Of Energy (DOE) o Energy Star - Energy Star Energy Efficiency Labeling System (FEMP) o Underwriters Laboratories (UL) o UL 790 - Standard Test Methods for Fire Tests of Roof Coverings o UL RMSD - Roofing Materials and Systems Directory

Security Requirements

2.2.1. AT Level I Training

All contractor employees, to include subcontractor employees, requiring access to Army installations, facilities, controlled access areas, or require network access, shall complete AT Level I awareness training within 30 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. Upon request, 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:

http://jko.jten.mil/courses/atl1/launch.html; or it can be provided by the RA ATO in http://www.approvalguide.com/

15 | P a g e presentation form which will be documented via memorandum.

2.2.2. Access and General Protection and Security Policy and Procedures

The contractor and all associated subcontractors' employees shall comply with applicable installation, facility, and area commander installation and facility access and local security policies and procedures (provided by the Government Representative). The contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by the installation the USACE Security Office. The contractor workforce must comply with all personal identity verification requirements as directed by DOD, HQDA, and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in contractor security matters or processes. The contractor must submit the full name, Social Security Number, Date of Birth, and Place of Birth for all associated contractor or subcontractor employees to the USACE Security Stephen Davidson, 412-395-7504, stephen.davidson@usace.army.mil. The District retains the right to deny any contractor and subcontractor employee from working on one of its contracts based on final background investigation results.

2.2.3. For contractors who do not require CAC, but require access to a DOD facility or installation

Contractor and all associated sub-contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and Terrorist Screening Database (TSDB) (Army Directive 2014-05 / AR 190-13), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative, as NCIC and TSDB are available), or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

2.2.4. Suspicious Activity Reporting Training

The contractor and all associated sub-contractors shall receive a brief/training (provided by the RA) on the local suspicious activity reporting program. 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 project manager, security representative or law enforcement entity. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR NLT 5 calendar days after the completion of the training.

2.2.5. Pre-screen candidates using E-Verify Program

The Contractor must pre‐screen Candidates using the E‐verify Program (http://www.uscis.gov/e-verify ) website to meet the established employment eligibility requirements. The Vendor must ensure that the Candidate has two valid forms of Government issued identification prior to ensure the correct information is entered into the E‐ verify system. An initial list of verified/eligible Candidates must be provided to the COR no later than 3 business days after the initial contract award.

2.2.6. Employee Identification and Background Check

The Contractor shall be responsible for furnishing an identification badge/card to each employee prior to the employee working on-site and for requiring each employee engaged http://www.uscis.gov/e-verify http://www.uscis.gov/e-verify http://www.uscis.gov/e-verify

16 | P a g e on the work to display identification. Identification shall consist of name tags with the name of the Contractor and the employee's name. Additionally, a valid state driver's license or other Government-issued photo identification card is required for positive identification. Each employee will be subject to a background check in accordance with "Homeland Security Presidential Directive 12: Policy for a Common Identification Standard for Federal Employees and Contractors" (HSPD- 12). Only those individual employees that were specifically identified and approved will be cleared to work on Government property.

Description of Roof Membrane System Fully adhered EPDM roof membrane system applied over insulation substrate.

Submittals Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for Contractor Quality Control approval:

o SD-02 Shop Drawings Roof Plan Drawing o Corner Attachments of Roof System Components Spacing of Perimeter, Corner, and Infield Fasteners Slopes and Drain Locations o SD-03 Product Data Cement o EPDM Sheet; G o Seam Tape Bonding Adhesive o Lap Splice Adhesive o Lap Cleaner, Lap Sealant, and Edge Treatment Flashings o Flashing and counter-flashing o Flashing Accessories Flashing Tape Fasteners and Plates Roof Insulation o Sample Warranty Certificate; G

Submit all data required together with requirements of this section. Include a written acceptance by the roof membrane manufacturer of the insulation and other products and accessories to be provided. List products in the applicable fire rating classification listings, unless approved otherwise by the Contracting Officer.

o SD-07 Certificates o Qualification of Manufacturer

Certify that the manufacturer of the roof membrane meets requirements specified under paragraph entitled "Qualification of Manufacturer."

o Qualification of Applicator Certify that the applicator meets requirements specified under paragraph entitled "Qualification of Applicator."

o Fire Resistance classification; G Submit the roof system assembly fire rating classification listings.

o SD-08 Manufacturer's Instructions Application; G o Application Method; G, including pattern and frequency of mechanical attachments required in the field of roof, corners, and perimeters to provide for the specified wind resistance o Membrane Flashing; G Seam Tape o Tape Seams / Lap Splices Adhesive Seams / Lap Splices Perimeter

Attachment o Primer Fasteners o Cold Weather Installation; G

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Include detailed application instructions and standard manufacturer drawings altered as required by these specifications. Explicitly identify in writing, differences between manufacturer's printed instructions and the specified requirements.

o SD-11 Closeout Submittals Warranty o Information Card o Instructions to Government Personnel o Include copies of Safety Data Sheets (SDS) for maintenance/repair materials.

2.4.1. Shop Drawings

Roof plan drawing depicting boundaries of enhanced perimeter and corner attachments of roof system components, as applicable. Include the project roof plan and conditions indicated. Provide all slopes and drain locations.

Quality Assurance

2.5.1. Qualification of Manufacturer

EPDM sheet roofing membrane manufacturer must have at least 5 years’ experience in manufacturing EPDM roofing products.

2.5.2. 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 three 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 5 projects of similar size and scope that the applicator has constructed using the manufacturer's roofing products submitted for this project within the previous three years.

2.5.3. Fire Resistance

Complete roof covering assembly must:

o Be Class A rated in accordance with ASTM E108, FM 4470, or UL 790; and be listed as part of Fire-Classified roof deck construction in the UL RMSD or Class I roof deck construction in the FM APP GUIDE.

FM or UL approved components of the roof covering assembly must bear the appropriate FM or UL label.

2.5.4. Pre-roofing Conference

After approval of submittals and before performing roofing and insulation system installation work, hold a Pre-roofing conference to review the following:

o Drawings, specifications and submittals related to the roof work;

o Roof system components installation;

o Procedure for the roof manufacturer's technical representative's onsite inspection and acceptance of the roofing substrate, the name of the manufacturer's technical representatives, the frequency of the onsite visits, distribution of copies of the inspection reports from the manufacturer's technical representative;

o Contractor's plan for coordination of the work of the various trades involved in providing the roofing system and other components secured to the roofing; and

18 | P a g e o Quality control plan for the roof system installation;

o Safety requirements.

Coordinate pre-roofing conference scheduling with the Contracting Officer. The conference must be attended by the Contractor, the Contracting Officer's designated personnel, personnel directly responsible for the installation of roofing and insulation, flashing and sheet metal work, mechanical and electrical work, other trades interfacing with the roof work, and representative of the roofing materials manufacturer. Before beginning roofing work, provide a copy of meeting notes and action items to all attending parties. Note action items requiring resolution prior to start of roof work.

Delivery, Storage, and Handling

2.6.1. Delivery

Deliver materials in their original, unopened containers or wrappings with labels intact and legible. Where materials are covered by a referenced specification number, the labels must bear the specification number, type, class, and shelf life expiration date where applicable.

Deliver materials in sufficient quantity to allow continuity of work.

2.6.2. Storage

Store and protect materials from damage and weather in accordance with manufacturer's printed instructions, except as specified otherwise. Keep materials clean and dry. Store and maintain adhesives, sealants, primers and other liquid materials in accordance with manufacturers’ recommendations. Utilize insulated hot boxes or other enclosed warming devices in cold weather. Mark and remove damaged materials from the site. Use pallets to support and canvas tarps to completely cover material materials stored outdoors. Do not use polyethylene as a covering. Storage of materials on the roof will not be permitted. Locate materials temporarily in approved areas. Remove unused materials from the roof at the end of each day’s work.

2.6.3. Handling

Prevent damage to edges and ends of roll materials. Do not install damaged materials in the work. Select and operate material handling equipment so as not to damage materials or applied roofing. Do not use materials contaminated by exposure or moisture. Remove contaminated materials from the site. When hazardous materials are involved, adhere to the special precautions of the manufacturer. Adhesives may contain petroleum distillates and may be extremely flammable; prevent personnel from breathing vapors, and do not use near sparks or open flame.

Environmental Requirements The temperature of the roofing materials shall be as required by the manufacturer. Do not install EPDM sheet roofing during high winds or inclement weather, or when there is ice, frost, moisture, or visible dampness on the substrate surface, or when condensation develops on surfaces during application.

Unless recommended otherwise by the EPDM sheet manufacturer and approved by the Contracting Officer, do not install EPDM sheet when air temperature is below 40 degrees F or within 5 degrees F of the dew point. Follow manufacturer's printed instructions for installation during cold weather conditions.

Wind conditions shall be suitable for installation of insulation: Wind chill may affect the proper application temperatures of materials; hot materials may be blown about, creating

19 | P a g e safety dangers; insulation boards may become difficult and hazardous to handle; wrappers, coverings, and other debris may become airborne, and possibly contaminate laps and seams.

Sequencing Coordinate the work with other trades to ensure that components which are to be secured to or stripped into the roofing system are available and that permanent flashing and counter-flashing are installed as the work progresses. Ensure temporary protection measures are in place to preclude moisture intrusion or damage to installed materials.

Warranty Submit sample certificates for approval.

Provide roof system material and workmanship warranties meeting specified requirements.

Provide revision or amendment to standard membrane manufacturer warranty as required to comply with the specified requirements. Provide a manufacturer's warranty that has no dollar limit, covers full system water-tightness, and has a minimum duration of 20 years.

2.9.1. Roofing System Installer Warranty

The roof system installer must warrant for a period of two years the roof system, as installed, is free from defects in installation workmanship, to include the roof membrane, flashing, insulation, accessories, attachments, and sheet metal installation integral to a complete watertight roof system assembly. Write the warranty directly to the Government. The roof system installer is responsible for correction of defective workmanship and replacement of damaged or affected materials. The roof system installer is responsible for all costs associated with the repair or replacement work. The contractor shall provide a warranty walk-thru with Project personnel at nine months and another prior to the two-year period.

2.9.2. Roof Membrane Manufacturer Warranty

Furnish roof membrane manufacturer's 20-year, no dollar limit, full roof system materials, and installation workmanship warranty, including all flashing, insulation, and accessory materials necessary to construct a complete, watertight roof system. Provide warranty directly to the Government and commence warranty effective date at the time of Government's acceptance of the roof work. The warranty shall state that:

o If within the warranty period the roof system, as installed for its intended use in the normal climatic and environmental conditions of the facility, becomes non-watertight, shows evidence of moisture intrusion within the assembly, splits, tears, cracks, delaminates, separates at the seams, or shows evidence of excessive weathering due to defective materials or installation workmanship, the repair or replacement of the defective and damaged materials of the roof system assembly and correction of defective workmanship shall be the responsibility of the roof membrane manufacturer. All costs associated with the repair or replacement work shall be the responsibility of the roof membrane manufacturer.

o When the manufacturer and his approved applicator fail to perform the repairs within 72 hours of notification, emergency temporary repairs performed by others shall not void the warranty.

2.9.3. Continuance of Warranty

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Approve repair or replacement work that becomes necessary within the warranty period and accomplish in a manner so as to restore the integrity of the roof system assembly and validity of the roof membrane manufacturer warranty for the remainder of the manufacturer warranty period.

Operations and Maintenance manual/data.

Provide information and instructions on routine care and maintenance requirements.

Conformance and Compatibility Provide the entire roofing and flashing system in accordance with specified and indicated requirements, including fire and wind resistance requirements. Work not specifically addressed and any deviation from specified requirements must be in general accordance with recommendations of the NRCA RoofMan, membrane manufacturer published recommendations and details, ASTM D6369, and compatible with surrounding components and construction. Submit any deviation from specified or indicated requirements to the Contracting Officer for approval prior to installation.

3. Products

Materials Coordinate with other specification sections related to the roof work. Furnish a combination of specified materials that comprise a roof system acceptable to the roof membrane manufacturer and meeting specified requirements. Protect materials provided from defects and make suitable for the service and climatic conditions of the installation.

3.1.1. EPDM Sheet

Ethylene Propylene Diene Terpolymer (EPDM), ASTM D4637/D4637M, Type I, non-reinforced, 0.060 inch nominal thickness for fully adhered application. Provide membrane with minimum thickness not less than minus 10 percent of the specified thickness value.

EPDM membrane thickness specified is exclusive of backing material on the EPDM membrane. Principal polymer used in manufacture of the membrane sheet must be greater than 95 percent EPDM. Width and length of sheet must be as recommended by the manufacturer. Provide a fully adhered rubber roof system similar to Versico Roofing Systems VersiGard EPDM or an approved equal.

3.1.2. Energy Performance

Install a roof system that meets an overall performance as specified on the drawings or by insulation specified in other sections.

3.1.3. Seam Tape

Double-sided synthetic rubber tape, minimum 0.03 inch thick, minimum 3 inch wide. Utilize seam tape as recommended by the manufacturer's printed data for forming watertight bond of EPDM sheet materials to each other for the application specified and conditions encountered. 6 inch wide tape is required for seam seals along lines of mechanical attachment of membrane.

3.1.4. Lap Splice Adhesive

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.

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3.1.5. Bonding Adhesive

Low volatile organic compound (VOC) 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. Do not use bonding adhesive to bond membrane materials to each other.

3.1.6. Lap Cleaner, Lap Sealant, and Edge Treatment

As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

3.1.7. Water Cutoff Mastic/Water Block

As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

3.1.8. Membrane Fasteners and Plates

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 specified. As supplied and warranted for the substrate type(s) by EPDM sheet manufacturer and recommended by EPDM sheet manufacturer's printed data.

o Stress Plates for Fasteners 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 inch in diameter.