B01 DRAFT SOW.pdf

4 June, 2021 TYAD Building 5 Bay 3 & 334 SOW

Building 5 Bay 3 Scope of Work Page 1 of 12

BUILDING 5 BAY 3 & 334 ROOF REPLACEMENT

SCOPE OF WORK

TOBYHANNA ARMY DEPOT

Table of Contents:

1.0 General Overview

1.1 Summary

1.2 Site Visit

1.3 Existing Conditions & Demolition

1.4 Construction

1.5 Specifications and Requirements

2.0 Products, Materials, and Execution

3.0 Submittals

4.0 - 16.0 TYAD Program Requirements

17.0 Bid Schedule

18.0 Additional Attachments

1.0 GENERAL OVERVIEW

1.1. SUMMARY:

1.1.1. This order shall consist of the construction services associated with the removal and replacement of two existing roofs (approximately 40,000 square feet for Building 5 Bay 3 and 16,900 square feet for Building 334) with a 60 mil reinforced, EPDM roof system at the Tobyhanna Army Depot. The construction services necessary to complete this project includes providing all licenses, permits, labor, materials, equipment, supervision and management to complete the project and return all disturbed areas to pre-existing conditions. Any exceptions shall be submitted in writing for government review and approval. Area specific details are included on the site layout drawing provided. Accuracy of the provided drawing needs to be confirmed and Tobyhanna is not responsible for the accuracy of the drawings provided.

1.1.2. The contractor shall complete construction in 90 total calendar days. The Government may extend its review time when reasonable and necessary without penalty or claim. The Government review will be primarily for the purpose of determining if the in conformance with the scope.

Building 5 Bay 3 Scope of Work Page 2 of 12

1.1.3. This work includes but is not limited to:

1.2. SITE VISIT

1.2.1. In order to gain an understanding of the project, it is that bidders attend the scheduled site visit on n order to obtain any desired measurements and other possible roofing related issues.

1.3. EXISTING CONDITIONS & DEMOLITION:

1.3.1. Building 5 Bay 3: The existing roof is comprised of poured gypsum concrete, insulation, and an EPDM membrane. The existing roof base on building 5 Bay 3 is lightweight poured gypsum concrete. If gypsum is found to be damaged and needing repair, the gypsum will be cut until sound, steel decking shall be cut and fitted to rest on supporting rails. The steel decking shall then be attached to the supports to resist movement. The contractor shall remove the existing EPDM membrane. All existing ISO board shall be inspected. If wet, it shall be removed and replaced with new insulation of same thickness before installing the additional insulation and new roof system. Any damaged or wet insulation shall also be removed from the Depot by the contractor. All roofing debris must go to a certified landfill. The new roof will connect into the existing metal canopy. All tie-ins to this metal canopy will be made water tight by the contractor in

1.3.2. Building 334: The existing roof on Building 334 is comprised of steel decking, ISO board, EPDM membrane, and stone ballast. The contractor shall remove all ballast gravel from the 334 roof. This work shall include transporting the disposed ballast gravel to the Tobyhanna Army DPW (Department of Public Works) storage yard approximately 1,700 feet away. The contractor shall remove the existing EPDM membrane. All existing ISO board shall be inspected. If wet, it shall be removed and replaced with new insulation of same thickness before installing the additional insulation and new roof system. Any damaged or wet insulation shall also be removed from the Depot by the contractor. All roofing debris must go to a certified landfill.

1.3.3. If additional steel supports are required, be advised existing roof steel contains lead based primer and will require abatement of paint prior to any welding or drilling of existing members.

1.3.4. Building 5 Bay 3 and building 334 may be operational/occupied during all times and during the working hours of the roof project. Care must be taken to ensure employees have safe access while entering and exiting the building. Building 334 operation hours are Tuesday through Friday 10am to 5pm and Saturday 9am to 4pm.

If an impedance or shut down of Building 334 must occur to conduct roofing operations, notice must be sent to the TYAD COR 7 days prior to the shutdown.

In order to gain an understanding of the project, it n order to obtain n order to obtain n order to obtain n order to obtain anyany

Building 5 Bay 3 Scope of Work Page 3 of 12

1.3.5. Coordinate all daily work activities prior to start with TYAD COR and Building Supervision in area to ensure personnel and assets are protected from dust or other hazards from work above

1.4. CONSTRUCTION:

1.4.1. Installation of ISO (Polyiso) roof insulation (to achieve an R-value of 30) over the existing insulation and poured gypsum concrete.

1.4.2. Installation of tapered insulation to achieve a minimum 1/8 existing taper on roof. (Building 5 Bay 3 ONLY)

1.4.3. Installation of EcoStorm VSH cover board (or approved equal to meet 95% recycled materials requirement) over ISO insulation.

1.4.4. Installation of a roofing system composing of a fully adhered, 60 mil reinforced EPDM membrane. Material shall be Carlisle Sure-Seal system or similar product to meet or exceed specifications in Appendix 2.

1.4.5. This work shall include tying into both parapets on the North (adjacent to bay 2) and South (adjacent to bay 4) side of Building 5 bay 3.

1.4.6. Installation of new dark bronze colored metal edging around roof perimeter (to be approved/designed per manufactures warranty).

1.4.7. Installation of curbs around any existing roof penetrations to ensure a minimum 12 curb is achieved where possible.

1.4.8. Installation of rubber walk boards from roof access point to all mechanical units

1.4.9. Installation of new scuppers and downspouts.

1.5. SPECIFICATIONS AND REQUIREMENTS:

1.5.1. The contractor shall provide a schedule 7 days in advance to the COR for the areas to be worked on in order to notify employees. The inside area below will be marked off as needed if any work activities could cause falling debris into the building area.

1.5.2. The roof system shall have a minimum 20 year warranty with no dollar limit that covers the full system water-tightness, and is from the single source manufacturer.

1.5.3. All new roof fasteners must be factory coated and installed to avoid penetrating of electrical conduit and boxes which may be mounted against or near the bottom of

Building 5 Bay 3 Scope of Work Page 4 of 12 the interior roof area.

1.5.4. Perform sample pull tests on anchors prior and provide results on pull out strengths achieved to COR prior to installing new insulation

1.5.5. All work shall follow the UFC 3-110-03 (Roofing) requirements or those included in this document, whichever is more stringent.

1.5.6. All seam overlaps shall be .

1.5.7. The contractor shall protect all Government property and clean all associated roofing debris on and near the jobsite. Cleanup shall be to the satisfaction of COR.

1.5.8. The contractor shall send all debris to a certified state landfill. Manifests of weights shall be supplied to COR if requested.

1.5.9. The contractor shall be available to respond to all emergency calls and be on site within 24 hours from time of call for any and all leaks arising during warranty.

1.5.10.All work areas or sites shall be clean and in equal or better condition once construction is completed.

1.5.11.Provide all labor, material, tools, equipment, and supervision necessary to complete the installation of 60 mil reinforced EPDM membrane Fully Adhered Roofing System or equal, including new flashing, ISO insulation, cover board, and tapered insulation.

1.5.12.The roofing contractor shall be fully knowledgeable of all requirements of the contract documents and shall make themselves aware of all job site conditions that will affect their work.

1.5.13.The roofing contractor shall confirm all given information and notify TYAD, prior to bid, of any conflicts that will affect their cost proposal.

1.5.14.Any contractor who intends to submit a bid using a roofing system other than the named approved manufacturer must submit for pre-qualification in writing fourteen (14) calendar days prior to the bid date. Any contractor who fails to submit all information

1.5.15.Reference attached Appendix 1 and 2 (spec section 07 53 23) for additional requirements.

2.0 PRODUCTS, MATERIALS, AND EXECUTION

2.1. All designs and installations shall comply The International Building Codes (IBC)

Building 5 Bay 3 Scope of Work Page 5 of 12 and Unified Facilities Criteria Specification (UFCS). Codes And Standards Include, but not limited to, the latest: National Electric Code (NEC), National Fire Protection boratory (UL), American Society Of Mechanical Engineers (ASME), American National Standards Institute (ANSI), Occupational Safety And Health Administration (OSHA), American Society For Testing And Materials (ASTM), American Society Of Heating, Refrigerating, And Air Conditioning Engineers (ASHRAE), International Mechanical Code (IMC), And International Plumbing Code(IPC).

2.2. All designs and installations shall comply with Tobyhanna Army Depot design/installation guidelines which are specific to the depot. In conflicts between specifications (codes) and TYAD design/installation guidelines, TYAD guidelines shall govern unless written approval by AHJ is obtained.

2.3. Appendix Checklist

2.3.1. The following is a list of TYAD design / installation guidelines and safety / fire / and environmental requirements and regulations which apply when working on the depot. These appendixes will be made available during the bidding process required for the project prior to submitting a bid. Failure to obtain copies of appendices by the contractor does not relieve the contractor of the requirements contained within. TYAD Garrison Engineering hority having

) and is responsible for approving equipment, materials and installation.

U.S. Army Garrison - Engineering Branch - TYAD

CONTRACT PACKAGE REQUIREMENTS CHECKLIST

BUILDING 5 BAY 3 & Building 334

ROOF REPLACEMENT

POC JEFF PRUZINSKY

REQUIRED

YES NO

APPENDIX A - TOBYHANNA EXECUTIVE SUMMARY FINAL NO

APPENDIX B - ROOM NUMBERING METHODOLOGY DEC 2014 NO

APPENDIX C - DESIGN SUBMISSION REQUIREMENTS MANUAL NO

APPENDIX D - TYAD CADD STANDARDS MANUAL NO

APPENDIX E - STANDARD NEPA SPECIFICATIONS FOR PROJECTS MAY 2020 YES

Building 5 Bay 3 Scope of Work Page 6 of 12

APPENDIX G - ELECTRICAL DESIGN and CONSTRUCTION STANDARDS REV 01-09-18 NO

APPENDIX H - MECHANICAL DESIGN JULY 2015 NO

APPENDIX I - REQUIREMENTS FOR CONTROLS AND INSTRUMENTS JUL 2015 NO

APPENDIX J - FIRE DETECTION & SUPPRESSION 02-14-18 YES

APPENDIX K - SAFETY STANDARDS FOR TYAD FEB 2021 YES

APPENDIX L - SOP FOR EXCAVATION & GROUND PENETRATIONS 07-21-15 NO

APPENDIX M - DOOR HARDWARE SPECIFICATION NO

Appendix F No Longer Required Incorporated Appendix E

3.0 SUBMITTALS

3.1. Submit to the TYAD POC two copies (electronically if able) of all submittals, except as noted below. Allow two weeks for Government review. The Contractor shall certify on all submittals that the material being proposed conforms to contract requirements. In the event of any variance, the Contractor shall state specifically which portions vary, and request approval of a substitute. The Contractor shall also certify that all Contractor-furnished equipment can be installed in the allocated spaces. Incomplete submittals and submittals with inadequate data will be rejected.

When required, catalog data shall be printed pages or permanent copies of manufacturer's catalogs.

3.1.1. Job Specific Safety Plan (To include Fall Protection Plan)

3.1.2. Installation Schedule

3.1.3. Maintenance Manuals (If needed)

3.1.4. Shop drawings showing tapered insulation details to attain positive drainage.

3.1.5. Prior to starting work, submit a sample warranty which will be identical to the signed warranty from manufacturer after the job is complete. Final payment will be made to the contractor after a complete system warranty from the manufacturer is received by Tobyhanna Army Depot.

4.0 SECURITY REQUIREMENTS

Building 5 Bay 3 Scope of Work Page 7 of 12

4.1. DEPOT ACCESS: See attachment 3: AT-OPSEC

4.2. Contractor personnel working on the Tobyhanna Army Depot must be fully identified.

Contractors register with the TYAD Security in Building 606. All employees, staff, and subcontractor personnel, etc., which will require access must present the following to access TYAD:

4.2.1. Full name

4.2.2. Drivers License

4.2.3. Nationality (if non-U.S. Citizen, alien registration number)

4.2.4. Completed Form ELTY 648C (Contractor Request for Access to TYAD)

4.2.5. Completed Form ELTY 648C must be submitted to TYAD prior to date of arrival as required by contract solicitation documentation.

4.3. If Contractor vehicles are required for use on TYAD, the following ID is required:

4.3.1. Make

4.3.2. Model

4.3.3. State Registration

4.3.4. Insurance

4.3.5. License Plate #

4.4. Contract personnel are expected to perform work during normal TYAD duty hours (0600-1700). If work must be performed otherwise, permission must be obtained three working days prior from the Security Office through the ISD Engineering POC.

ISD Engineering POC will also coordinate with changes in work schedules with Mission Modernization Branch and Mission Operations as needed to determine impact on production.

4.5. Contractor personnel must confine themselves to the work sites specified in their contract. Visiting other areas is prohibited.

4.6. Alcoholic beverages, weapons, cameras, sound recorders, proscribed drugs and explosives are prohibited on Government property.

4.7. Use of Government property without prior written approval of the COR is prohibited.

4.8. TYAD will arrange for special Contractor parking if required. Contractor personnel

Building 5 Bay 3 Scope of Work Page 8 of 12 must not park in numbered spaces, areas reserved for car pools, grassy areas or other prohibited areas. Posted speed limits and traffic restrictions must be observed at all times.

4.9. Accidents must be reported to the COR according to contractors approved APP and/or in accordance with OSHA and EM 385-1-1 requirements. Dial 911 for emergency and/or medical immediate attentions.

4.10. Security concerns should be immediately reported to the COR for action. Immediate emergency security needs or concerns can be directly relayed to TYADs security office thru calling (570.615.7550) immediately.

4.11. Contractor personnel working on station for less than 30 days may be required to log in and out at the Visitor Control Center (Bldg. 606) each day and will not be issued an Extended Entry Contractor's Badge. The ISD Engineering POC will provide information on how to obtain an Extended Entry Contractor's Badge if one is required.

4.12. Pursuant to federal regulations, all personnel and vehicles on Government property are subject to search by authorized personnel at any time.

4.13. All Contractors personnel are required to display the TYAD issued identification badge on their person at all times while present at the work site. Access to Government property will not be allowed without this identification badge. The badge is to be displayed on the person outer clothing, above the waist and in full view.

Identification badges and vehicle passes issued to Contractor personnel remain the property of the U.S. Government and must be surrendered upon completion of the Contractor at the termination of individual employment, and when requested by the Government. Badges will not be displayed when not on Tobyhanna property.

4.14. A list of all personnel working under this contract should be turned in immediately after award in order to allow sufficient time to process security information.

5.0 SMOKING RESTRICTIONS:

5.1. The bearing and use of lighted cigarettes, cigars, pipes, or any tobacco product is prohibited in the following areas:

5.1.1. All buildings including private offices, lobbies, and restroom

5.1.2. Alleys and passages between buildings

5.1.3. Stairways and ramps leading to building entries and exit

5.1.4. Within 50 feet of building entries and exits

Building 5 Bay 3 Scope of Work Page 9 of 12

5.1.5. Within 20 feet of heating, ventilation, and air conditioning intake ducts

5.1.6. Hazardous areas containing flammable liquids, gases, vapors, and all other locations where there is a collection of readily ignitable combustible material

6.0 STATION PERMITS and WRITTEN APPROVALS:

6.1. Permits are required for, excavation, welding and burning. Contractors must utilize the PA 1 Call system and obtain a permit coordinated with the POC for excavations in accordance with Appendix L prior to any groundbreaking including digging, drilling and stake driving. Burn/fire permits must be obtained daily from the Fire Department (Appendix K).

6.2. Written approval (Appendix K via e-mail) must be obtained from the Safety Office through the ISD Engineering Branch prior to executing any of the following

6.2.1. Trenching five feet or more in depth (Trench Plan)

6.2.2. Entry to a confined space

6.2.3. Crane Lift (Lift Plan)

7.0 STORM PROTECTION:

7.1. If a warning of gale force winds is issued, take precautions to minimize any danger to persons, and protect the work and any nearby Government property. Precautions shall include, but not be limited to, closing openings, removing loose materials, tools, and equipment from exposed locations, and removing or securing scaffolding and other temporary work. Close openings even if expected storms are of a lesser intensity but, may still pose a threat to the work site or any nearby Government property.

8.0 PCB, HAZARDOUS MATERIALS, ASBESTOS AND LEAD MATERIAL:

8.1.

and or lead and must be disturbed, do not touch the material. Should the discovery of such suspected material affect the Contractor's planned work schedule, the Contractor shall redirect the work crew to other portions of the unaffected work and modify the schedule at no additional cost to the Government. The ISD Engineering POC shall be notified immediately, in writing, regarding the discovery of the suspected material and of any adverse impact the Contractor may expect to incur due to this situation.

8.2. Within 10 calendar days, the Environmental, Safety and Occupational Health Branch (ESOH Branch) Representative will have laboratory tests performed to determine if the material is a hazard. If there is not a danger, the ESOH Branch Representative will direct the Contractor to proceed in the identified area without change. If the material is identified as hazardous, before proceeding, discussions will be held

Building 5 Bay 3 Scope of Work Page 10 of 12 between the Contracting Officer's Representative, ISD Engineering POC and ESOH Branch to determine the most cost-effective means for removal. The hazardous material will be removed, abated or rendered harmless before work commences.

9.0 SAFETY REQUIREMENTS:

9.1. (See Appendix K for TYAD specific Safety details)

9.2. Contractor will adhere to and enforce all site safety and health site controls, resources, management and regulations in accordance with OSHA and EM 385-1-1 standards.

Wherever any discrepancies exist, the most stringent of regulations shall apply.

Wherever any doubts or confusions exist the contractor will notify the COR via proper submittal and/or RFI procedures for clarification.

10.0 ENVIRONMENTAL PROTECTION REQUIREMENTS:

10.1. (See Appendix E for Environmental details)

11.0 STORAGE OF MATERIALS AND EQUIPMENT:

11.1. Government furnished storage facilities may not be available to the Contractor in the vicinity of the work site. The Contractor shall provide suitable storage facilities as required, located as approved by the ISD Engineering POC, if he intends to leave materials and equipment in the work area overnight or on weekends. The security of the Contractor's property or his personnel's property shall be the full responsibility of the Contractor. The Government will accept no liability in case of loss due to fire or theft.

12.0 AVAILABILITY OF UTILITY SERVICES:

12.1. The Government will furnish water and power in the quantity not to exceed the amount necessary for the normal prosecution of the work, at the nearest available outlet. The Contractor shall make all piping and wiring connections thereto and shall extend the services to the site of the work. On completion of the work, the Contractor shall remove all such temporary connections and any removed or damaged portions of the Government services at the points of connection shall be repaired or replaced.

12.1.1.Other Utilities: The Contractor shall make arrangements to obtain all utilities not furnished by the Government, at his/her own expense.

12.1.2.The Government will not provide refuse facilities. The Contractor will be required to dispose of all garbage and other waste materials generated by his work at a licensed off-site landfill.

13.0 ORAL MODIFICATION:

Building 5 Bay 3 Scope of Work Page 11 of 12

13.1. No oral statement of any person other than the Contracting Officer or as delegated by the Contracting Officer as provided in the Basic Contract shall in any manner or degree modify or otherwise affect the terms of this Contract.

14.0 TIME FOR COMPLETION:

14.1. All work and services under the base bid shall be completed within calendar days after award of the task order.

15.0 WORK SCHEDULE:

15.1. All work shall be performed during normal working hours, between 0600 and 1700, Monday through Friday, except (a) federal holidays, or (b) other days so designated by the Contracting Officer's Representative or the POC. Any work other than these hours or weekend work will be permitted only when advance written approval has been issued by the POC three working days in advance. All work associated with the pre-engineered enclosure affecting road closure, or restricted traffic flow shall be performed after normal working hours unless approved in advance as part of the construction schedule. To work on post at any other times will require a request to the POC 14 days in advance.

15.2. The Post Exchange operation hours are Tuesday through Friday 10am to 5pm and Saturday 9am to 4pm. Work shall not impede customers or deliveries entering or exiting the building. If an impedance or shut down of the Post Exchange must occur to conduct roofing operations, notice must be sent to the TYAD COR 7 days prior to the shut down.

16.0 DELIVERABLES:

16.1. Upon completion of the construction and prior to final payment, the Contractor will supply the On Site Representative with two (2) copies of the following:

16.1.1.Maintenance manuals. (If applicable) Information shall include: Safety precautions, Normal operations, Preventive maintenance plan and schedule.

16.1.2.Maintenance and repair procedures, (If applicable) Removal and replacement instructions, Spare parts and supply list, Parts identification, Warranty information, Test equipment and special tool information, and Contractor information.

Building 5 Bay 3 Scope of Work Page 12 of 12

18.0 ADDITIONAL ATTACHMENTS

18.1. Attachment 1 - Roof Package Drawings (Building 5 bay 3 ONLY)

18.2. Attachment 2 UFC Spec Section 07 53 23 (Ethylene-Propylene-Diene-Monomer Roofing) (Building 5 bay 3 ONLY)

18.3. Attachment 3 Proposed Tapered Roof Insulation Drawing (Building 5 bay 3

ONLY)

18.4. Attachment 4 - Roof Package Drawings (Building 334 ONLY)

18.5. Attachment 5 UFC Spec Section 07 53 23 (Ethylene-Propylene-Diene-Monomer Roofing) (Building 334 ONLY)

18.6. Attachment 6 UFC Spec Section 07 22 00 (Roof and Deck Insulation) (Building

334 ONLY)

18.7. Attachment 7 AT/OPSEC Requirements

18.8. Appendix E - Standard NEPA Specifications For Projects

18.9. Appendix J - Fire Detection & Suppression

18.10. Appendix K - Safety Standards For TYAD

***END OF SPECIFICATION*

5B3

5B2

5B4

5B4-LD10 40 8020 Feet

5B3 - Roof

Apr 2021

40,184 SF

SECTION 07 53 23

ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING

PART 1 GENERAL

1.01 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.

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

ASCE 7 (2010; Change 2010; Change 2011; Errata 2011; Change 2011) Minimum Design Loads for Buildings and Other Structures

ASTM INTERNATIONAL (ASTM)

ASTM D448 (2012) Sizes of Aggregate for Road and Bridge Construction

ASTM D4637/D4637M (2013) EPDM Sheet Used in Single-Ply Roof Membrane

ASTM D4811 (2006) Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing

ASTM D6369 (1999; R 2006) Design of Standard Flashing Details for EPDM Roof Membranes

ASTM E108 (2011) Fire Tests of Roof Coverings

FM GLOBAL (FM)

FM 4470 (2010) 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

FM 1-29 Roof Deck Securement

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA RoofMan (2013) The NRCA Roofing Manual

SINGLE PLY ROOFING INDUSTRY (SPRI)

ANSI/SPRI RD-1 (2009) Performance Standard for Retrofit Drains

UNDERWRITERS LABORATORIES (UL)

UL 790 (2004; Reprint Jul 2013) Standard Test

Methods for Fire Tests of Roof Coverings

UL RMSD (2012) Roofing Materials and Systems Directory

1.02 DESCRIPTION OF ROOF MEMBRANE SYSTEM

Fully adhered EPDM roof membrane system applied over insulation substrate.

1.03 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only.

When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.

SD-02 Shop Drawings

Roof Plan Drawing G, AE

Slopes and Drain Locations G, AE

SD-03 Product Data

EPDM Sheet; G

Roof Insulation G, AE

Pre-Manufactured Accessories G, AE

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 wind uplift and fire rating classification listings, unless approved otherwise by the Contracting Officer.

SD-05 Design Data

Wind Uplift Calculations; G

Engineering calculations validating the wind resistance of roof system.

SD-07 Certificates

Qualification of Manufacturer

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

Qualification of Applicator

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

Wind Uplift Resistance classification, as applicable; G

Fire Resistance classification; G

SD-08 Manufacturer's Instructions

Application; G

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

Membrane Flashing; G

Cold Weather Installation; G

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.

SD-11 Closeout Submittals

Warranty

Information Card

Instructions To Government Personnel

Include copies of Material Safety Data Sheets for maintenance/repair materials.

A. Shop Drawings

Roof plan drawing depicting wind load calculations and boundaries of enhanced perimeter and corner attachments of roof system components, spacing of perimeter, corner, and infield fasteners, as applicable. The roof plan drawing must reflect the project roof plan of each roof level and conditions indicated. Provide all slopes and drain locations.

1.04 QUALITY ASSURANCE

A. Qualification of Manufacturer

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

B. 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 five 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.

C. Fire Resistance

Complete roof covering assembly must:

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

b. 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.

D. Wind Uplift Resistance

The complete roof system assembly shall be rated and installed to resist wind loads calculated in accordance with ASCE 7 and validated by uplift resistance testing in accordance with Factory Mutual (FM) test procedures. Do not install non-rated systems except as approved by the Contracting Officer. Submit licensed engineer's wind uplift calculations and substantiating data to validate any non-rated roof system. Base wind uplift measurements based on a design wind speed of 110 mph in accordance with ASCE 7, with an Importance Factor of 1.15 in accordance with UFC requirements and/or other applicable building code requirements. Minimum peak wind gust coverage up to [___] MPH when measured 10 m above ground level.

E. Preroofing Conference

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

a. Drawings, specifications and submittals related to the roof work;

b. Roof system components installation;

c. 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;

d. 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

e. Quality control plan for the roof system installation;

f. Safety requirements.

Coordinate preroofing 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.

1.05 DELIVERY, STORAGE, AND HANDLING

A. 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.

B. 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 above 60 degrees F. Insulated hot boxes or other enclosed warming devices must be required in cold weather. Mark and remove damaged materials from the site. Use pallets to support and canvas tarpaulins to completely cover material materials stored outdoors. Do not use polyethylene as a covering. Do not store materials on the roof. Remove unused materials from the roof at the end of each days work.

C. 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.

1.06 ENVIRONMENTAL REQUIREMENTS

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 dewpoint. Follow manufacturer's printed instructions for installation during cold weather conditions.

1.07 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 counterflashing are installed as the work progresses. Ensure temporary protection measures are in place to preclude moisture intrusion or damage to installed materials.

Application of roofing must immediately follow application of insulation as a continuous operation. Coordinate roofing operations with insulation work so that all roof insulation applied each day is covered with roof membrane installation the same day.

1.08 WARRANTY

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. Minimum manufacturer warranty shall have no dollar limit, cover full system water-tightness, and shall have a minimum duration of 20 years.

A. Roof Membrane Manufacturer Warranty

Furnish the roof membrane manufacturer's 20 year no dollar limit roof system materials and installation workmanship warranty, including flashing, insulation, and accessories necessary for a watertight roof system construction. The warranty must run directly to the Government and commence at time of Government's acceptance of the roof work. The warranty must state that:

a. 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, shrinks to the point of bridging or tenting membrane at transitions, 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 must be the responsibility of the roof membrane manufacturer. The roof membrane manufacturer is responsible for all costs associated with the repair or replacement work.

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

B. Roofing System Installer Warranty

The roof system installer must warrant for a period of two years that 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.

C. Continuance of Warranty

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.

1.09 CONFORMANCE AND COMPATIBILITY

The entire roofing and flashing system must be 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.

1.10 ELIMINATION, PREVENTION OF FALL HAZARDS

A. Fall Protection

Provide fall protection, devices and implement procedures as required by ANSI/ASSE A1264.1 and OSHA 29CFR 1926.500 through

1926.503 safety standards as needed for project conditions.

1.11 SUSTAINABILITY REQUIREMENTS

Coordinate with Section 01 33 29 SUSTAINABILITY DOCUMENTATION.

PART 2 PRODUCTS

2.01 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.

EPDM Sheet Ethylene Propylene Diene Terpolymer (EPDM), ASTM D4637/D4637M, [Type I , reinforced] 0.0 0 inch nominal thickness for [fully adhered] application. Provid 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.][maximum width attainable as recommended by the manufacturer to minimize field formed seams in the field of the roof.]

Seam Tape Double-sided synthetic rubber tape, minimum 0.03 inch thick, minimum 3 inch wide. The roof membrane manufacturer must supply seam tape 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.

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 in areas of membrane flashing. Do not use splice adhesive to form membrane seams in field of roof or at standard base flashing conditions.

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.

Lap Cleaner, Lap Sealant, and Edge Treatment

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

Water Cutoff Mastic/Water Block

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

Prefabricated Roof Penetration Flashings Provide prefabricated/premolded roof penetration flashings of membrane material compatible with specified roofing minimum thickness of 0 mils. Flashings shall be fabricated for use on single or multiple configurations of pipe and conduit as well as square or rectangular shapes. Terminations of flashings shall be a minimum of 8 inches above finished roof surface with a stainless steel clamping ring. Flashings shall be secured to the membrane roofing system per roofing systems requirements so as not to void roofing system warranty.

Membrane Flashings and Flashing Accessories Membrane flashing, including self-adhering membrane flashing, perimeter flashing, flashing around roof penetrations, and prefabricated pipe seals, must be minimum 0.045 inch minimum cured EPDM, as recommended by the roof membrane manufacturer or minimum

0.055 inch thick uncured EPDM sheet in compliance with ASTM D4811, Type I. Use cured EPDM membrane to the maximum extent recommended by the roof membrane manufacturer. Limit uncured flashing material to reinforcing inside and outside corners and angle changes in plane of membrane, pourable sealer pockets, and other formed penetrations or unusually shaped conditions as recommended by the roof membrane manufacturer where the use of cured material is impractical.

Flashing Tape

EPDM-backed synthetic rubber tape, minimum 6 inch wide as supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

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 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.

J. Pre-Manufactured Accessories

Pre-manufactured accessories must be manufacturer's standard for intended purpose compatible with the membrane roof system and approved for use by the roof membrane manufacturer.

1. Pre-fabricated Curbs

Provide gauge curbs with minimum 4 inch flange for attachment to roof nailers. Provide minimum height of 10 inch above the finished roof membrane surface.

K. Rubber Walkboards

1. Preformed reprocessed rubber, compatible with the EPDM sheet, 1/4 inch minimum thickness, and weighing not less than 1-1/2 pounds per square foot.

L. Roof Insulation Below EPDM Sheet

Insulation system and facer material must be compatible with membrane application specified and as approved by the roof membrane manufacturer.

M. Wood Products

Do not allow fire retardant treated materials be in contact with EPDM membrane or EPDM accessory products, unless approved by the membrane manufacturer and the Contracting Officer.

N. Membrane Liner

Self-adhering EPDM membrane liner conforming to ASTM D4637/D4637M, or other waterproof membrane liner material as approved by the roof membrane manufacturer and the Contracting Officer.

2.02 FLASHING CEMENT

Provide a self-vulcanizing butyl compound flashing cement for splicing laps and for flashings workable at 20 degrees F. Obtain a recommendation for such flashing cement from the roofing membrane manufacturer.

PART 3 EXECUTION

3.01 EXAMINATION

Ensure that the following conditions exist prior to application of the roofing materials:

a. Drains, curbs, expansion joints, perimeter walls, roof penetrating components, and equipment supports are in place.

b. Surfaces are rigid, clean, dry, smooth, and free from cracks, holes, and sharp changes in elevation.

c. The plane of the substrate does not vary more than 1/4 inch within an area 10 by 10 feet when checked with a 10 foot straight edge placed anywhere on the substrate.

d. Substrate is sloped to provide positive drainage.

e. Walls and vertical surfaces are constructed to receive counterflashing, and will permit mechanical fastening of the base flashing materials.

f. Treated wood nailers are in place on non-nailable surfaces, to permit nailing of base flashing at minimum height of 18 inch above finished roofing surface.

g. Pressure-preservative treated wood nailers are fastened in place at openings and intersections with vertical surfaces for securing of membrane, edging strips, attachment flanges of sheet metal, and roof fixtures. Surface-applied nailers are the same thickness as the roof insulation.

h. Avoid contact of EPDM materials with fire retardant treated wood, except as approved by the roof membrane manufacturer and Contracting Officer.

i. Cants are securely fastened in place in the angles formed by walls and other vertical surfaces. The angle of the cant is 45 degrees and the height of the vertical leg is not less than 3-1/2 inch.

j. Exposed nail heads in wood substrates are properly set. Warped and split boards have been replaced. There are no cracks or end joints 1/4 inch in width or greater. Joints in plywood substrates are taped or otherwise sealed to prevent air leakage from the underside.

l. Insulation boards are installed smoothly and evenly, and are not broken, cracked, or curled. There are no gaps in insulation board joints exceeding 1/4 inch in width. Insulation is being roofed over on the same day the insulation is installed.

3.02 APPLICATION

Apply entire EPDM sheet utilizing fully adhered application method.

Apply roofing materials as specified herein unless approved otherwise by the Contracting Officer.

A. Special Precautions

a. Do not dilute coatings or sealants unless specifically recommended by the materials manufacturer's printed application instructions. Do not thin liquid materials with cleaners used for cleaning EPDM sheet.

b. Keep liquids in airtight containers, and keep containers closed except when removing materials.

c. Use liquid components, including adhesives, within their shelf life period. Store adhesives at 60 to 80 degrees F prior to use. Avoid excessive adhesive application and adhesive spills, as they can be destructive to some elastomeric sheets and insulations; follow adhesive manufacturer's printed application instructions. Mix and use liquid components in accordance with label directions and manufacturer's printed instructions.

d. Provide clean, dry cloths or pads for applying membrane cleaners and cleaning of membrane

e. Do not use heat guns or open flame to expedite drying of adhesives or primers.

f. Require workmen and others who walk on the membrane to wear clean, soft-soled shoes to avoid damage to roofing materials.

g. Do not use equipment with sharp edges which could puncture the EPDM sheet.

h. Shut down air intakes and any related mechanical systems and seal open vents and air intakes when applying solvent-based materials in the area of the opening or intake. Coordinate shutdowns with the Contracting Officer.

B. EPDM Sheet Roofing

Provide a watertight roof membrane sheet free of contaminants and defects that might affect serviceability. Provide a uniform, straight, and flat edge. Unroll EPDM sheet roofing in position without stretching membrane. Inspect for holes. Remove sections of EPDM sheet roofing that are damaged. Allow sheets to relax minimum 30 minutes before seaming. Lap sheets as specified, to shed water, and as recommended by the roof membrane manufacturer's published installation instructions for the application required but not less than 3 inch in any case.

C. Application Method

1. Fully Adhered Membrane Application

Layout membrane and side lap adjoining sheets in accordance with membrane manufacturer's printed installation instructions. Allow for sufficient membrane to form proper membrane terminations. Remove dusting agents and dirt from membrane and substrate areas where bonding adhesives are to be applied. Apply specified adhesive evenly and continuously to substrate at rates recommended by the roof membrane manufacturer's printed application instructions.

When adhesive is spray applied, roll with a paint roller to ensure proper contact and coverage. Do not apply bonding adhesive to surfaces of membrane in seam or lap areas. Allow adhesive to flash off or dry to consistency prescribed by manufacturer before adhering sheets to the substrate. Roll each sheet into adhesive slowly and evenly to avoid wrinkles; broom or roll the membrane to remove air pockets and fishmouths and to ensure full, continuous bonding of sheet to substrate. Form field lap splices or seams as specified. Check all seams and ensure full lap seal. Apply lap sealant to all adhesive formed seams and all cut edges of reinforced membrane materials.

D. Tape Seams / Lap Splices

Field form seams, or lap splices, with seam tape in accordance with membrane manufacturer's printed instructions and as specified. Clean and prime mating surfaces in the seam area.

After primer has dried or set in accordance with membrane manufacturer's instructions, apply seam tape to bottom membrane and roll with a 3 inch to 4 inch wide smooth silicone or steel hand roller, or other manufacturer approved rolling device, to ensure full contact and adhesion of tape to bottom membrane.

Tape end laps must be minimum 1 inch. Roll top membrane into position to check for proper overlap and alignment. Remove release paper from top of seam tape and form seam splice. Ensure top membrane contact with seam tape as release paper is removed.

Roll the closed seam with a smooth silicone or steel hand roller, rolling first across the width of the seam then along the entire length, being careful not to damage the membrane. Apply minimum 9 inch long strip of membrane-backed flashing tape over T-intersections of roof membrane. Roll tape to ensure full adhesion and seal over T-joint.

E. Adhesive Seams / Lap Splices

Use only field-applied adhesive formed seams in flashing areas where approved by the membrane manufacturer and the Contracting Officer. Do not use adhesive formed seams for field of roof membrane seaming. Thoroughly and completely clean mating surfaces of materials throughout the lap area. Remove all dirt, dust, and contaminants and allow to dry.

Apply primer as recommended by the membrane manufacturer. Apply splice adhesive with a 3 inch to 4 inch wide, 1/2 inch thick, solvent-resistant brush in a smooth, even coat with long brush strokes. Bleed out brush marks.