Amendment_0002.pdf

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

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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

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

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

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

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

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

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

NUMBER IN ITEM 10A.

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

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

D. OTHER (Specify type of modification and authority)

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

15C. DATE SIGNED

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

16C. DATE SIGNED

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

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

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

Change No. 0002 W9128F

RENOVATE INDUSTRIAL SHOPS, B546, MINOT AFB, NORTH DAKOTA

See attached documentation for content of the changes to RFP

Date for receipt of proposals is 15 JUN 2020 at 1400 hours

Government Point of Contact: Mr. Jae Chang, Contract Specialist jae.chang@usace.army.mil

U.S ARMY CORPS OF ENGINEERS, OMAHA DISTRICT

CONTRACTING OFFICE

5475 TECH CENTER DRIVE, SUITE 205

COLORADO SPRINGS, CO 80919

See Item 6

W9128F-20-R-0028

06/05/2020

04/30/2020

06/05/2020

Am #0002 - 2 (Continuation of SF30)

DEPARTMENT OF THE ARMY

Omaha District, Corps of Engineers

1616 Capitol Avenue Omaha, Nebraska 68102-4901

:NOTICE: Failure to acknowledge : Solicitation No. W9128F-20-R-0028 :all amendments may cause rejec-:

:tion of the offer. See FAR : Date of Issue: 30 APR 2020 :52.215-1 of Section 00 21 00. : Date of Receiving Proposals:

15 JUN 2020

Amendment No. 0002

5 JUN 2020

SUBJECT: Amendment No. 0002 to Request for Proposal Solicitation Package for Construction of RENOVATE INDUSTRIAL SHOPS, B546 at MINOT AFB, ND

TO: Prospective Offerors and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications (New and/or Revised and Reissued). Delete and substitute or add specification pages as noted below. The substituted pages are revised and reissued with this amendment. Please note that sections marked with asterisks have changed tracked within them for convenience.

Pages Deleted Pages Substituted or Added 07 52 00 07 52 00* 21 30 00 21 30 00*

b. Drawings (Reissued). The following drawing is revised with a revision date as indicated in the title block, and reissued with this amendment.

(1) Sheet MID1S-501, STRUCTURAL DETAILS

2. This amendment is a part of the proposing papers and its receipt shall be acknowledged on the Standard Form 1442. All other conditions and requirements of the request for proposal remain unchanged.

3. Offers will be received until 2:00 p.m., local time at place of receiving proposals, 15 JUN 2020.

Attachments:

Specification Page(s) listed in 1.a., above Drawings listed in 1.b., above (under separate cover) As-Built Drawing (provided For Information Only)

U.S. Army Corps of Engineers, Omaha District 1616 Capitol Avenue Omaha, Nebraska 68102-4901

5 JUN 2020

jlb/2099

Minot Missile CMD HQ Design 043012MINOT

SECTION TABLE OF CONTENTS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 52 00

MODIFIED BITUMINOUS MEMBRANE ROOFING

PART 1 GENERAL

1.1 REFERENCES

1.2 DESCRIPTION OF ROOF MEMBRANE SYSTEM

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Manufacturer

1.4.2 Qualification of Applicator

1.4.3 Letter of Acceptance From Manufacturer

1.4.4 Preroofing Conference

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

1.5.2 Storage

1.5.3 Handling

1.6 ENVIRONMENTAL REQUIREMENTS

1.7 MODIFIED BITUMEN MEMBRANE SAFETY

1.7.1 Property Protection

1.8 SEQUENCING

1.9 CONFORMANCE AND COMPATIBILITY

PART 2 PRODUCTS

2.1 MATERIALS

2.2 MODIFIED BITUMEN SHEETS MATERIALS

2.3 BASE FLASHING MEMBRANE

2.4 COLD-APPLIED MEMBRANE ADHESIVE

2.5 MEMBRANE SURFACING

2.6 PRIMER

2.7 MODIFIED BITUMEN ROOF CEMENT

2.8 CANT AND TAPERED EDGE STRIPS

2.9 FASTENERS AND PLATES

2.9.1 Vertical Surfaces

2.9.2 Metal Plates

2.10 PRE-MANUFACTURED ACCESSORIES AND CURB

2.10.1 Pre-fabricated Curbs

2.10.1.1 Fasteners

2.10.1.2 Finish

2.10.1.3 Curb Attachments to Structure

2.10.1.4 Basis of Design - Manufacturer and Product

2.11 ROOF INSULATION BELOW MODIFIED BITUMEN MEMBRANE SYSTEM

2.12 MEMBRANE LINER

PART 3 EXECUTION

3.1 EXAMINATION

3.2 PREPARATION

SECTION 07 52 00 Page 1

Am_0002

3.2.1 Protection of Property

3.2.1.1 Protective Coverings

3.2.2 Priming of Surfaces

3.2.2.1 Priming of Metal Surfaces

3.3 APPLICATION

3.3.1 Temporary Roofing and Flashing

3.3.1.1 Removal

3.3.2 Application Method

3.3.2.1 Cold Adhesive Applied Modified Bitumen Membrane

3.3.3 Base Sheet

3.3.4 Membrane Flashing

3.3.4.1 Membrane Strip Flashing

3.3.4.2 Pre-fabricated Curbs

3.3.5 Correction of Deficiencies

3.3.6 Clean Up

3.4 CORRECTION OF DEFICIENCIES

3.5 PROTECTION OF APPLIED ROOFING

3.6 FIELD QUALITY CONTROL

3.6.1 Construction Monitoring

3.6.1.1 Manufacturer's Inspection

3.7 INSTRUCTIONS TO GOVERNMENT PERSONNEL

3.8 INFORMATION CARD

-- End of Section Table of Contents --

SECTION 07 52 00 Page 2

SECTION 07 52 00

MODIFIED BITUMINOUS MEMBRANE ROOFING

PART 1 GENERAL

1.1 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 SAFETY PROFESSIONALS (ASSP)

ASSP A10.24 (2014) Roofing - Safety Requirements of Low-Sloped Roofs

ASPHALT ROOFING MANUFACTURER'S ASSOCIATION (ARMA)

ARMA PMBRG98 (1998) Quality Control Guideline for the Application of Polymer Modified Bitumen Roofing

ASTM INTERNATIONAL (ASTM)

ASTM D1970/D1970M (2018) Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection

ASTM D41/D41M (2011; R 2016) Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing

ASTM D4586/D4586M (2007; E 2012; R 2012) Asphalt Roof Cement, Asbestos-Free

ASTM D4637/D4637M (2015) EPDM Sheet Used in Single-Ply Roof Membrane

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

GREEN SEAL (GS)

GS-36 (2013) Adhesives for Commercial Use

SECTION 07 52 00 Page 3

NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA CONDET (2014) Construction Details Manual

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD)

SCAQMD Rule 1168 (2017) Adhesive and Sealant Applications

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA 1793 (2012) Architectural Sheet Metal Manual, 7th Edition

SINGLE PLY ROOFING INDUSTRY (SPRI)

ANSI/SPRI/FM 4435/ES-1 (2017) Test Standard for Edge Systems Used with Low Slope Roofing Systems

1.2 DESCRIPTION OF ROOF MEMBRANE SYSTEM

This specification covers a very limited amount of roof work including the new roof curb and required flashing installed over the mechanical room

714. The success of this new roof curb and flashing is highly dependent on installing a compatible system with existing systems. The Design Team information about the existing roof system is very limited.

The Minot AFB has described the roof system generically as a 4-ply roof system with gravel topping over perlite board over 4” of polyiso insulation over vapor barrier over fiberglass substrate over steel roof deck, which was installed in 2010.

Current as-builts show the roof structure slopes 1/2”/foot.

Contractor will need to field verify all architectural and structural conditions.

The Design Team is assuming that the existing roof is a modified bitumen roof and that the new roof flashing can be cold adhered to the existing roofing membranes to maintain a watertight system. Because of the small area being renovated it is assumed that no torch or hot-mopping is needed.

The new roof curb is over 24” tall to accommodate the snow load. The Design Team assumes a custom pre-manufactured roof curb shall be engineered and installed to accommodate the wind load. The new curb will need to be engineered to securely fasten to the existing structure, which needs to be field verified.

Some new roofing elements may be needed if existing elements cannot be salvaged and re-used such as insulation, vapor barrier, and substrate boards.

1.3 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. Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance with

SECTION 07 52 00 Page 4

Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Roof plan and several curb cross sections ; G, AE

Roof plan and several curb cross sections as necessary to describe new and existing assembly similar to detail 7/A-502 scope. Include all new and adjacent existing roof assemblies, inclusive of curb systems, metal supports, and fasteners.

SD-03 Product Data /Sustainable Design Requirements

Modified Bitumen Sheets ; G, AE

Cold-Applied Membrane Adhesive ; G, AE

Primer ; G, AE

Modified Bitumen Roof Cement ; G, AE

Pre-Manufactured Accessories and Curb ; G, AE

Fasteners And Plates ; G, AE

Sample Warranty certificate; G, AE

Submit all data required by this section. Include in data written acceptance by the roof membrane manufacturer of the products and accessories provided. Provide oroducts as listed in the applicable wind uplift classification listings.

Recycled Content ; G AE S

Sustainable strategies documentation relative to recycled content materials credit in accordance with LEED Reference Guide. Include in Sustainable Strategies Documentation Notebook.

Low-Emitting Materials - Adhesives and Sealants ; G AE S

Sustainable strategies documentation relative to low-emitting materials - adhesives and sealants credit in accordance with LEED Reference Guide. Include documentation showing that product complies with SCAQMD Rule 1168 and GS-36. Include in Sustainable Strategies Documentation Notebook.

SD-05 Design Data

Wind Calculations ; G, AE

Provide Engineering calculations, signed, sealed, and dated by a qualified Engineer validating the wind resistance per ASCE 7, ASTM D4073, and ANSI/SPRI/FM 4435/ES-1 of non-rated roof system.

SD-07 Certificates

Provide evidence that products used within this specification are manufactured in the United States.

SECTION 07 52 00 Page 5

Letter of Acceptance from Manufacturer

Qualification of Manufacturer

Certify that the manufacturer of the modified bitumen membrane meets requirements specified under paragraph QUALIFICATION OF

MANUFACTURER.

Qualification of Applicator

Certify that the applicator meets requirements specified under paragraph QUALIFICATION OF APPLICATOR.

Qualification of Engineer of Record

Certify that the Engineer of Record is fully qualified, competent, and currently licensed to practice in the project jurisdiction.

Wind Resistance ; G classification, as applicable

SD-08 Manufacturer's Instructions

Flashing ; G

Cold Adhesive Applied Modified Bitumen Membrane ; G

Base Sheet attachment, including pattern and frequency of mechanical attachments required in field of roof, corners, and perimeters to provide for the specified wind resistance.

Primer

Fasteners

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 instructions and the specified requirements.

SD-11 Closeout Submittals

Warranty

Information Card

Instructions To Government Personnel

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

Submit 20 year "No-Dollar-Limit" warranty for labor and materials.

SECTION 07 52 00 Page 6

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Manufacturer

Modified bitumen sheet roofing system manufacturer must have a minimum of 5 years experience in manufacturing modified bitumen roofing products.

1.4.2 Qualification of Applicator

Roofing system applicator must be approved, authorized, or licensed in writing by the modified bitumen sheet roofing system manufacturer and 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 five 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.

1.4.3 Qualification of Engineer of Record

Engineer of Record must be currently licensed within the jurisdiction of the project.

Engineer of Record must be approved, authorized, and currently licensed by the state of North Dakota, and have a minimum of five years experience as an approved Engineer for manufacturers of similar roof systems. Engineer of Record must supply the names and locations of five projects of similar size and scope for which he has provided engineering calculations using the manufacturer's products submitted for this project within the previous three years. Engineer of Record must provide certified engineering calculations for:

Wind uplift requirements in accordance with State codes

ASCE 7,in accordance with International Building Code.

Seismic requirements per state building codes

Seismic requirements per ICC IBC Chapter 16, Section 1608.3

Snow load requirements per ICC IBC Chapter 16 Section 1608.3 and Section 7 of ASCE 7

1.4.4 Wind Resistance

Provide a complete roof system assembly that is 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 calculations and substantiating data to validate any non-rated roof system. Base wind uplift measurements on a design wind speed of 115 mph in accordance with ASCE 7 and other applicable building code requirements.

1.4.3 Letter of Acceptance From Manufacturer

Provide letter from roofing manufacturer that new system is compatible with existing roofing system. Furthermore the letter

SECTION 07 52 00 Page 7 to state that the manufacturer has reviewed the existing conditions and installation details and has approved the design to meet the warranty.

1.4.4 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, including shop drawings of Roof Plan and several curb cross sections , specifications and submittals related to the roof work.

Field inspection and verification of all existing conditions, including all fire safety issues, existing structure, and existing materials, including concealed combustibles, which may require additional protection during installation.

b. Roof system components installation

c. Procedure for the roof manufacturer's technical representative's onsite inspection and acceptance of the roof structure, and 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 representatives to roof manufacturer

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

e. Quality control, (ARMA PMBRG98) 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, and personnel directly responsible for the installation of roofing and insulation, flashing and sheet metal work, mechanical work, other trades interfacing with the roof work, designated safety personnel trained to enforce and comply with ASSP A10.24 and a 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.

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

Deliver materials in manufacturers' original unopened containers and rolls with labels intact and legible. Mark and remove wet or damaged materials from the site. Where materials are covered by a referenced specification, the container must bear the specification number, type, and class, as applicable. Deliver materials in sufficient quantity to allow work to proceed without interruption.

SECTION 07 52 00 Page 8

1.5.2 Storage

Protect materials against moisture absorption and contamination or other damage. Avoid crushing or crinkling of roll materials. Store roll materials on end on clean raised platforms or pallets one level high in dry locations with adequate ventilation, such as an enclosed building or closed trailer. Do not store roll materials in buildings under construction until concrete, mortar, and plaster work is finished and dry. Maintain roll materials at temperatures above 50 degrees F for 24 hours immediately before application. Do not store materials outdoors unless approved by the Contracting Officer. Completely cover felts stored outdoors, on and off roof, with waterproof canvas protective covering. Do not use polyethylene sheet as a covering. Tie covering securely to pallets to make completely weatherproof. Provide sufficient ventilation to prevent condensation. Do not store more materials on roof than can be installed the same day and remove unused materials at end of each days work. Distribute materials temporarily stored on roof to stay within live load limits of the roof construction.

Immediately remove wet, contaminated or otherwise damaged or unsuitable materials from the site. Damaged materials may be marked by the Contracting Officer.

1.5.3 Handling

Prevent damage to edges and ends of roll materials. Do not install damaged materials in the work. Select and operate material handling equipment to prevent damage to materials or applied roofing.

1.6 ENVIRONMENTAL REQUIREMENTS

Do not install roofing system when air temperature is below 40 degrees F , during any form of precipitation, including fog, or when there is ice, frost, moisture, or any other visible dampness on the roof deck. Follow manufacturer's printed instructions for Cold Weather Installation .

1.7 MODIFIED BITUMEN MEMBRANE SAFETY

1.7.1 Property Protection

Do not store flammable liquids on the roof.

1.8 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, per NRCA CONDET, and are installed as the work progresses. Ensure temporary protection measures are in place to preclude moisture intrusion or damage to installed materials.

1.9 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. Provide a manufacturer's warranty that has no dollar limit, covers full system water-tightness, and has a minimum duration of 20 years.

SECTION 07 52 00 Page 9

1.9.1 Roof Membrane and Flashing Manufacturer Warranty

Furnish the roof membrane and flashing manufacturer's 20-year no dollar limit roof system materials and installation workmanship warranty, including flashing, insulation in compliance with ASTM C1289, and accessories necessary for a watertight roof system construction. Provide warranty directly to the Government and commence warranty effective date 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, blisters, splits, tears, 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 are the responsibility of the roof membrane manufacturer. All costs associated with the repair or replacement work are the responsibility of the roof membrane manufacturer.

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.

c. Upon completion of installation, and acceptance by the Contracting Office and Roofing System Engineer of Record, the manufacturer must supply the appropriate warranty to the Owner.

d. Installer must submit a minimum two year warranty to the membrane manufacturer from the date of acceptance, with a copy to the Contracting Officer and Roofing System Engineer of Record.

1.9.2 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.

1.9.3 Continuance of Warranty

Repair or replacement work, ARMA 410BUR88, NRCA C3701 that becomes necessary within the warranty period and accomplished 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.

1.9 CONFORMANCE AND COMPATIBILITY

Provide the entire roofing and flashing system in accordance with specified and indicated requirements, including fire and wind resistance ( ANSI/SPRI/FM 4435/ES-1 ) requirements. Work not specifically addressed and

SECTION 07 52 00 Page 10 any deviation from specified requirements must be in general accordance with recommendations of the NRCA Roofing and Waterproofing Manual, membrane manufacturer published recommendations and details, and compatible with surrounding components and construction. Submit any deviation from specified or indicated requirements to the Contracting Officer for approval prior to installation.

PART 2 PRODUCTS

2.1 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.

2.2 MODIFIED BITUMEN SHEETS MATERIALS

Furnish a combination of specified materials that comprise the modified bitumen manufacturer's standard system of the number and type of plies specified. Provide materials suitable for the service and climatic conditions of the installation. Modified bitumen sheets must be watertight and visually free of pinholes, particles of foreign matter, non-dispersed raw material, factory splices, or other conditions that might affect serviceability. Polymer modifier must comply with ARMA PMBRG98 and be uniformly dispersed throughout the sheet. Edges of sheet must be straight and flat.

2.3 BASE FLASHING MEMBRANE

Membrane manufacturer's standard, minimum two-ply modified bitumen membrane flashing system compatible with the roof membrane specified and as recommended in membrane manufacturer's published literature. Provide flashing membranes that meet or exceed the properties of the material standards specified for the modified bitumen base, interply and cap sheet, except that flashing membrane thickness must be as recommended by the membrane manufacturer.

2.4 COLD-APPLIED MEMBRANE ADHESIVE

Membrane manufacturer's recommended low volatile organic compound (VOC) cold process adhesive for application of the membrane plies.

2.5 MEMBRANE SURFACING

Provide modified bitumen roof membrane cap sheet with factory-applied granule surfacing to match existing.

2.6 PRIMER

ASTM D41/D41M, or other primer compatible with the application and as approved in writing by the modified bitumen membrane manufacturer.

2.7 MODIFIED BITUMEN ROOF CEMENT

ASTM D4586/D4586M , Type II for vertical surfaces, Type I for horizontal surfaces, compatible with the modified bitumen roof membrane and as recommended by the modified bitumen membrane manufacturer.

SECTION 07 52 00 Page 11

2.8 CANT AND TAPERED EDGE STRIPS

Provide standard cants and tapered edge strips as recommended by manufacturer.

2.9 FASTENERS AND PLATES

Provide coated, corrosion-resistant fasteners as recommended by the modified bitumen sheet manufacturer's printed instructions and meeting the requirements of FM 4470 and FM APP GUIDE for Class I roof deck construction and the wind uplift resistance specified. For fastening of membrane or felts to wood materials, provide fasteners driven through 1 inch diameter metal discs, or one piece composite fasteners with heads not less than 1 inch in diameter or 1 inch square with rounded or 45 degree tapered corners.

2.9.1 Vertical Surfaces

Use hardened steel nails or screws with flat heads, diamond shaped points, and mechanically deformed shanks not less than 1 inch long for securing felts, modified bitumen sheets, metal items, and accessories to masonry or concrete walls and vertical surfaces. Use power-driven fasteners only when approved in writing by the Contracting Officer.

2.9.2 Metal Plates

Provide flat corrosion-resistant round stress plates as recommended by the modified bitumen sheet manufacturer's printed instructions and meeting the requirements of FM 4470 ; not less than 2 inch in diameter. Form discs to prevent dishing or cupping.

2.10 PRE-MANUFACTURED ACCESSORIES AND CURB

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

2.10.1 Pre-fabricated Curbs

Provide insulated aluminum curb with minimum 5 inch flange for attachment to roof structure. Aluminum to be minimum 0.063 thick. Includes integral lap jointed wood mailer at top. Insulation to be three pound density and minimum 1-1/2” thick. Fully welded assembly. Height exceeds 2’-0” as noted on drawings.

2.10.1.1 Fasteners

Use the same metal as, or a metal compatible with the item fastened to avoid galvanic corrosion due to dissimilar materials. Provide compatible washers where required to protect surface of metal and to provide a watertight connection.

2.10.1.2 Finish

a. At unexposed areas mill finish aluminum.

b. At exposed areas, if any, provide aluminum curb with factory applied, organic finish recommended by manufacturer. Color to match custom

SECTION 07 52 00 Page 12 color as defined in Section 09 06 00 SCHEDULES FOR FINISHES.

2.10.1.3 Curb Attachments to Structure

Manufacturer to engineer and design curb to meet design loads as defined in this specification. This includes designing and supplying fasteners to new and existing structure and possibly some new support structure as necessary.

2.10.1.4 Basis of Design - Manufacturer and Product

Manufacturer:

GREENHECK

P.O. Box 410, Schofield, WI 54476-0410 Phone (715) 359-6171 Model: custom design

2.11 ROOF INSULATION BELOW MODIFIED BITUMEN MEMBRANE SYSTEM

Provide insulation compatible with the roof membrane to match existing.

2.12 MEMBRANE LINER

Provide self-adhering modified bitumen underlayment conforming to ASTM D1970/D1970M , EPDM membrane liner conforming to ASTM D4637/D4637M , or other waterproof membrane liner material as approved by the Contracting Officer.

PART 3 EXECUTION

3.1 EXAMINATION

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

a. Do not install items that show visual evidence of biological growth.

b. Surfaces are rigid, clean, dry, smooth, and free from cracks, holes, and sharp changes in elevation. Joints in the substrate are sealed to prevent dripping of bitumen into building or down exterior walls.

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

d. Substrate is sloped as indicated to provide positive drainage.

e. Walls and vertical surfaces are constructed to receive counter flashing, 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 8 inch above finished roofing surface.

g. Protect all combustible materials and surfaces which may contain concealed combustible or flammable materials. All fire extinguishing equipment has been placed as specified.

SECTION 07 52 00 Page 13

h. 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 .

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

j. 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.

k. Roof deck and framing are sloped as indicated to provide positive drainage.

3.2 PREPARATION

3.2.1 Protection of Property

3.2.1.1 Protective Coverings

Install protective coverings at paving and building walls prior to starting the work. Lap protective coverings not less than 6 inch , secure against wind, and vent to prevent collection of moisture on covered surfaces. Keep protective coverings in place for the duration of the roofing work.

3.2.2 Priming of Surfaces

Prime all surfaces to be in contact with adhered membrane materials.

Apply primer at the rate of 0.75 gallon per 100 sq. ft. or as recommended by modified bitumen sheet manufacturer's printed instructions to promote adhesion of membrane materials. Allow primer to dry prior to application of membrane materials to primed surface. Avoid flammable primer material conditions in torch applied membrane applications.

3.2.2.1 Priming of Metal Surfaces

Prime flanges of metal components to be embedded into the roof system prior to setting in bituminous materials or stripping into roofing system.

3.3 APPLICATION

Apply roofing materials as specified herein unless approved otherwise by the Contracting Officer. Keep roofing materials dry before and during application. Complete application of roofing in a continuous operation.

Begin and apply only as much roofing in one day as can be completed that same day. Maintain specified temperatures.

3.3.1 Temporary Roofing and Flashing

Provide watertight temporary roofing and flashing where work is to be performed on the roof or where construction scheduling or weather conditions require protection of the building's interior before permanent roofing system can be installed. Do not install temporary roofing over permanently installed insulation. Provide rigid pads for traffic over temporary roofing.

SECTION 07 52 00 Page 14

3.3.1.1 Removal

Completely remove temporary roofing and flashing before continuing with application of the permanent roofing system.

3.3.2 Application Method

3.3.2.1 Cold Adhesive Applied Modified Bitumen Membrane

Apply cold adhesive with airless sprayer or 1/4 inch saw-toothed rubber squeegee to prepared surfaces in accordance with membrane manufacturer's application instructions. Fully cover substrate with adhesive. Roll or lay membrane in adhesive in accordance with manufacturer's recommendations and within the time limitations of adhesive application. Broom the membrane to ensure full contact with adhesive. Seal laps with adhesive or by heat fusing with torch or hot air welder as required by membrane manufacturer. Minimize traffic on installed membrane during the adhesive cure and set time.

3.3.3 Base Sheet

Fully adhere base sheets in accordance with membrane manufacturer's printed instructions. Application must be free of ridges, wrinkles, and buckles.

3.3.4 Membrane Flashing

Apply two-ply modified bitumen strip flashing and sheet flashing in the angles formed where the roof deck abuts walls, curbs, ventilators, pipes, and other vertical surfaces, and where necessary to make the work watertight. Apply membrane flashing in accordance with the roof membrane manufacturers printed instructions and as specified. Cut at a 45 degree angle across terminating end lap area of cap membrane prior to applying adjacent overlapping cap membrane. Press flashing into place to ensure full adhesion and avoid bridging. Ensure full lap seal in all lap areas.

Mechanically fasten top edge of modified bituminous base flashing 150 mm (6 inches) on center through minimum 1 inch diameter tin caps with fasteners of sufficient length to embed minimum one inch into attachment substrate. Apply matching granules in any areas of adhesive bleed out while the adhesive is still tacky. Apply membrane liner over top of exposed nailers and blocking and to overlap top edge of base flashing installation at curbs, parapet walls, expansion joints and as otherwise indicated to serve as waterproof lining under sheet metal flashing components. Metal flashing per SMACNA 1793 guidelines and standards is specified under Section 07 60 00 FLASHING AND SHEET METAL. Do not set metal flashing in hot asphalt.

3.3.4.1 Membrane Strip Flashing

Set primed flanges of metal flashing in full bed of modified bituminous cement material and securely fasten through to attachment substrate.

Strip-in with membrane flashing so that strip extends not less than 4 inch beyond outer edge of flange. Where multiple membrane stripping plies are installed, extend each additional stripping ply minimum 4 inch beyond edge of previous ply.

3.3.4.2 Pre-fabricated Curbs

Securely anchor prefabricated curbs to nailer or other base substrate and

SECTION 07 52 00 Page 15 flash.

3.3.5 Correction of Deficiencies

Where any form of deficiency is found, take additional measures as deemed necessary by the Contracting Officer to determine the extent of the deficiency and perform corrective actions as directed by the Contracting Officer.

3.3.6 Clean Up

Remove debris, scraps, containers and other rubbish and trash resulting from installation of the roofing system from job site each day.

3.4 CORRECTION OF DEFICIENCIES

Where any form of deficiency is found, take additional measures as deemed necessary by the Contracting Officer to determine the extent of the deficiency and perform corrective actions as directed by the Contracting Officer.

3.5 PROTECTION OF APPLIED ROOFING

At the end of the day's work and when precipitation is imminent, protect applied modified bitumen roofing system from water intrusion.

3.6 FIELD QUALITY CONTROL

Perform field tests in the presence of the Contracting Officer. Notify the Contracting Officer one day before performing tests.

3.6.1 Construction Monitoring

During progress of the roof work, make visual inspections as necessary to ensure compliance with specified parameters. Additionally, verify the following:

a. Materials comply with the specified requirements.

b. Materials are not installed in adverse weather conditions.

All materials are properly stored, handled and protected from moisture or other damages.

c. Substrates are in acceptable condition, in compliance with specification, prior to application of subsequent materials.

(1) Nailers and blocking are provided where and as needed.

Insulation substrate is smooth, properly secured to its substrate, and without excessive gaps prior to membrane application.

(2) The proper number, type, and spacing of fasteners are installed.

Membrane adhesive application is provided uniformly and as necessary to ensure full adhesion of roll materials.

The proper number and types of plies are installed, with the specified overlaps.

SECTION 07 52 00 Page 16

Applied membrane surface is inspected, cleaned, dry, and repaired as necessary prior to cap sheet installation.

(3) Lap areas of all plies are completely sealed.

Membrane is fully adhered without ridges, wrinkles, kinks, fishmouths, or other voids or delaminations.

Installer adheres to specified and detailed application parameters.

Associated flashing and sheet metal are installed in a timely manner in accord with the specified requirements.

Temporary protection measures are in place at the end of each work shift.

3.6.1.1 Manufacturer's Inspection

Manufacturer's technical representative must visit the site for purposes of reviewing materials installation practices and adequacy of work in place.

3.7 INSTRUCTIONS TO GOVERNMENT PERSONNEL

Furnish written and verbal instructions on proper maintenance procedures to designated Government personnel. Furnish instructions by a competent representative of the modified bitumen membrane manufacturer and include a minimum of 4 hours on maintenance and emergency repair of the membrane.

Include a demonstration of membrane repair, and give sources of required special tools. Furnish information on safety requirements during maintenance and emergency repair operations.

3.8 INFORMATION CARD

For each roof, furnish a typewritten information card for facility Records and a card laminated in plastic and framed for interior display at roof access point, or a photoengraved 0.039 inch thick aluminum card for exterior display. Card must be 8 1/2 by 11 inch minimum, identifying facility name and number; location; contract number; approximate roof area; detailed roof system description, including deck type, membrane, number of plies, method of application, manufacturer, insulation and cover board system and thickness; presence of tapered insulation for primary drainage, presence of vapor retarder; date of completion; installing contractor identification and contact information; membrane manufacturer warranty expiration, warranty reference number, and contact information.

Install card at roof top or access location as directed by the Contracting Officer and provide a paper copy to the Contracting Officer.

-- End of Section --

SECTION 07 52 00 Page 17

SECTION TABLE OF CONTENTS

DIVISION 21 - FIRE SUPPRESSION

SECTION 21 30 00

FIRE PUMPS

PART 1 GENERAL

1.1 SUMMARY

1.2 SEQUENCING

1.3 REFERENCES

1.4 SUBMITTALS

1.5 EXTRA MATERIALS

1.6 QUALITY ASSURANCE

1.6.1 Fire Protection Specialist

1.6.2 Qualifications of Welders

1.6.3 Qualifications of Installer

1.6.4 Preliminary Test Certification

1.6.5 Final Test Certification

1.6.6 Manufacturer's Representative

1.7 DELIVERY, STORAGE, AND HANDLING

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.2 FIRE PUMP

2.3 REQUIREMENTS FOR FIRE PROTECTION SERVICE

2.3.1 General Requirements

2.3.2 Alarms

2.4 ABOVEGROUND PIPING COMPONENTS

2.4.1 Steel Pipe

2.4.2 Fittings for Non-Grooved Steel Pipe

2.4.3 Grooved Mechanical Joints and Fittings

2.4.4 Flanges

2.4.5 Bolts, Nut, and Washers

2.4.6 Pipe Hangers and Supports

2.4.7 Valves

2.4.7.1 Gate Valves

2.4.7.2 Tamper Switch

2.4.7.3 Check Valve

2.4.7.4 Circulating Relief Valve

2.5 ELECTRIC MOTOR DRIVER

2.6 FIRE PUMP CONTROLLER

2.6.1 Controller for Electric Motor Driven Fire Pump

2.7 PRESSURE SENSING LINE

2.8 PRESSURE MAINTENANCE PUMP

2.8.1 General

2.8.2 Pressure Maintenance Pump Controller

2.9 HOSE VALVE MANIFOLD TEST HEADER

2.10 FLOW METER

PART 3 EXECUTION

SECTION 21 30 00 Page 1

3.1 EXAMINATION

3.2 INSPECTION BY FIRE PROTECTION SPECIALIST

3.3 INSTALLATION

3.3.1 Installation Drawings

3.3.2 Pump Room Configuration

3.4 PIPE AND FITTINGS

3.4.1 Cleaning of Piping

3.4.2 Threaded Connections

3.4.3 Pipe Hangers and Supports

3.4.3.1 Horizontal Piping

3.4.4 Grooved Mechanical Joint

3.5 ELECTRICAL WORK

3.6 PIPE COLOR CODE MARKING

3.7 FLUSHING

3.8 FIELD TESTS

3.8.1 Hydrostatic Test

3.8.2 Preliminary Tests

3.8.3 Army Final Acceptance Test

3.8.3.1 Flow Tests

3.8.3.2 Starting Tests

3.8.3.3 Alarms

3.8.3.4 Miscellaneous

3.8.3.5 Correction of Deficiencies

3.8.3.6 Test Documentation

3.8.4 Test Equipment

3.9 SYSTEM STARTUP

3.10 CLOSEOUT ACTIVITIES

3.10.1 Field Training

3.10.2 As-Built Drawings

3.11 PROTECTION

-- End of Section Table of Contents --

SECTION 21 30 00 Page 2

SECTION 21 30 00

FIRE PUMPS

PART 1 GENERAL

1.1 SUMMARY

Except as modified in this Section or on the drawings, install fire pumps in conformance with NFPA 20 , NFPA 70 , and NFPA 72 . In the event of a conflict between specific provisions of this specification and applicable NFPA standards, this specification governs. Devices and equipment for fire protection service must be UL Fire Prot Dir listed or FM APP GUIDE approved. Interpret all reference to the authority having jurisdiction to mean the Contracting Officer.

1.2 SEQUENCING

The fire pump system shall be arranged in accordance with NFPA 20 , Section A.14.2.6(4)

1.3 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.

ASME INTERNATIONAL (ASME)

ASME B16.1 (2015) Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250

ASME B16.11 (2016) Forged Fittings, Socket-Welding and Threaded

ASME B16.21 (2016) Nonmetallic Flat Gaskets for Pipe Flanges

ASME B16.3 (2016) Malleable Iron Threaded Fittings, Classes 150 and 300

ASME B16.4 (2011) Standard for Gray Iron Threaded Fittings; Classes 125 and 250

ASME B16.5 (2017) Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard

ASME B16.9 (2012) Standard for Factory-Made Wrought Steel Buttwelding Fittings

ASME B18.2.2 (2015) Nuts for General Applications:

Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)

SECTION 21 30 00 Page 3

ASTM INTERNATIONAL (ASTM)

ASTM A135/A135M (2009; R2014) Standard Specification for Electric-Resistance-Welded Steel Pipe

ASTM A183 (2014) Standard Specification for Carbon Steel Track Bolts and Nuts

ASTM A449 (2014) Standard Specification for Hex Cap Screws, Bolts, and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use

ASTM A47/A47M (1999; R 2014) Standard Specification for Ferritic Malleable Iron Castings

ASTM A53/A53M (2018) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A536 (1984; R 2014) Standard Specification for Ductile Iron Castings

ASTM A795/A795M (2013) Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use

ASTM B135/B135M (2017) Standard Specification for Seamless Brass Tube

ASTM D3308 (2012; R 2017) PStandard Specification for TFE Resin Skived Tape

ASTM F436 (2011) Hardened Steel Washers

FM GLOBAL (FM)

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

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA MG 1 (2016; SUPP 2016) Motors and Generators

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 13 (2016; TIA 16-1; TIA 16-2; TIA 16-3 2016;

Errata 17-1; Errata 17-2) Standard for the Installation of Sprinkler Systems

NFPA 1963 (2014) Standard for Fire Hose Connections

NFPA 20 (2016; Errata 1 2016; Errata 2 2018) Standard for the Installation of Stationary Pumps for Fire Protection

NFPA 70 (2017; ERTA 1-2 2017; TIA 17-1; TIA 17-2;

TIA 17-3; TIA 17-4; TIA 17-5; TIA 17-6;

SECTION 21 30 00 Page 4

TIA 17-7; TIA 17-8; TIA 17-9; TIA 17-10;

TIA 17-11; TIA 17-12; TIA 17-13; TIA

17-14; TIA 17-15; TIA 17-16; TIA 17-17 )

National Electrical Code

NFPA 72 (2016; Errata 1 2018) National Fire Alarm and Signaling Code

UNDERWRITERS LABORATORIES (UL)

UL 448 (2017) UL Standard for Safety Centrifugal Stationary Pumps for Fire-Protection Service

UL Fire Prot Dir (2012) Fire Protection Equipment Directory

1.4 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.

Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Installation Drawings ; G As-Built Drawings ; G Piping Layout ; G Pump Room; G

SD-03 Product Data

Flow Meter Spare Parts Steel Pipe ; G Fittings For Non-Grooved Steel Pipe ; G Grooved Mechanical Joints And Fittings ; G Flanges ; G Fire Pump ; G Pipe Hangers And Supports ; G Gate Valves ; G Tamper Switch ; G Check Valve ; G Circulating Relief Valve ; G Hose Valve Manifold Test Header ; G Fire Pump Controller ; G Pressure Maintenance Pump ; G Pressure Maintenance Pump Controller ; G

SD-06 Test Reports

Preliminary Tests ; G Army Final Acceptance Test

SD-07 Certificates

SECTION 21 30 00 Page 5

Fire Protection Specialist ; G Qualifications of Welders Qualifications of Installer Preliminary Test Certification Final Test Certification Manufacturer's Representative ; G

SD-08 Manufacturer's Instructions

Field Training ; G

SD-10 Operation and Maintenance Data

Operating and Maintenance Instructions ; G

1.5 EXTRA MATERIALS

Submit Spare Parts data for each different item of equipment and material specified. The data shall include a complete list of parts and supplies, with current unit prices and source of supply, and a list of parts recommended by the manufacturer to be replaced after 1 year and 3 years of service. Include a list of special tools and test equipment required for maintenance and testing of the products supplied by the Contractor.

1.6 QUALITY ASSURANCE

Compliance with referenced NFPA standards is mandatory. This includes advisory provisions listed in the appendices of such standards, as though the word "shall" had been substituted for the word "should" wherever it appears. In the event of a conflict between specific provisions of this specification and applicable NFPA standards, this specification shall govern. Reference to "authority having jurisdiction" shall be interpreted to mean the USACE - Omaha District Fire Protection Engineer.

1.6.1 Fire Protection Specialist

Refer to Specification section 21 13 13.00 10 WET PIPE SPRINKLER SYSTEM, FIRE PROTECTION for Fire Protection Specialist requirements.

1.6.2 Qualifications of Welders

Submit certificates of each welder's qualifications prior to site welding;

certifications shall not be more than one year old.

1.6.3 Qualifications of Installer

Prior to installation, submit data for approval showing that the Contractor has successfully installed fire pumps and associated equipment of the same type and design as specified herein, or that he has a firm contractual agreement with a subcontractor having such required experience. The data shall include the names and locations of at least two installations where the Contractor, or the subcontractor referred to above, has installed such systems. Indicate the type and design of each system and certify that each system has performed satisfactorily in the manner intended for a period of not less than 18 months.

SECTION 21 30 00 Page 6

1.6.4 Preliminary Test Certification

When preliminary tests have been completed and corrections made, submit a signed and dated certificate…