Amendment 0005.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

5. PROJECT NO. (If applicable)2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ.NO.

PAGE OF PAGES

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

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

CODE

9A. AMENDMENT OF SOLICITATION NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

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

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 is extended, is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required.)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO THE AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation date, etc.) SET FORTH IN ITEM 14.

E. IMPORTANT: Contractor is not, is required to sign this document and return

ORDER NO. IN ITEM 10A.

1 1

0005 06/19/2020

AAQ-731 FAC. & AVIATION SAFETY ACQ

FAA AERONAUTICAL CENTER

PO BOX 25082

BLDG 014-AHQ, ROOM 233A

AAQ0731-AFN

OKLAHOMA CITY OK 73125

AAQ-731 FAC. & AVIATION SAFETY ACQ

FAA AERONAUTICAL CENTER

PO BOX 25082

BLDG 014-AHQ, ROOM 233A

AAQ731-AFN

OKLAHOMA CITY OK 73125

x

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

separate letter or telegram which includes a reference to the solicitation and amendment number. FAILURE OF YOUR ACKNOWLEDGEMENT 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 telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By ___________ 1 x x

6973GH-20-R-00062

1 copies to the issuing office.

06/19/2020

(x)

NOTE: The Line Items listed in Section B of this SIR are for Government use only.

Offerors shall complete Revised Attachment 1, Section B/Pricing of this document for the contract line item pricing.

Specification Section 07 5200 included in the original SIR is hereby superseded and replaced with Specification Section 07 5200, revised July 20, 2020.

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

15C. DATE SIGNED 16B. CONTRACT AUTHORITY 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

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

Technical Specification ISSUED FOR CONSTRUCTION

DTFAAC-16-D-00036

FAA BMB Renovation Type B

07 5200 - 1

AMENDMENT 005

MODIFIED BITUMINOUS

MEMBRANE ROOFING

7/20/2020

SECTION 07 5200

MODIFIED BITUMINOUS MEMBRANE ROOFING

PART 1 GENERAL

1.01 SUMMARY

A. Work shall include, but is not limited to, the following:

1. Preparation of existing and new steel roof deck, and all flashing substrates.

2. Mechanically attached polyisocyanurate flat insulation

3. Tapered insulation and ½” gypsum cover-board in low rise insulation adhesive.

4. SBS-modified bitumen base ply cold adhesive-applied.

5. SBS-modified bitumen cap sheet cold adhesive-applied

6. SBS-modified bitumen membrane flashings cold adhesive-applied.

7. Liquid-applied, reinforced flashings.

8. All related materials and labor required to complete specified roofing necessary to receive specified manufacturer’s warranty.

1.02 REFERENCE STANDARDS

A. ASTM C728 - Standard Specification for Perlite Thermal Insulation Board; 2017a.

B. ASTM C1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal

Insulation Board; 2017.

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

D. ASTM D226/D226M - Standard Specification for Asphalt-Saturated Organic Felt Used in

Roofing and Waterproofing; 2017.

E. ASTM D312/D312M - Standard Specification for Asphalt Used in Roofing; 2016a.

F. ASTM D4586/D4586M - Standard Specification for Asphalt Roof Cement, Asbestos-Free; 2007, with Editorial Revision (2012).

G. ASTM D4601/D4601M - Standard Specification for Asphalt-Coated Glass Fiber Base Sheet

Used in Roofing; 2004, with Editorial Revision (2012).

H. ASTM E108 - Standard Test Methods for Fire Tests of Roof Coverings; 2017.

I. ASTM E1980 - Standard Practice for Calculating Solar Reflectance Index of Horizontal and

Low-Sloped Opaque Surfaces; 2011.

J. FM (AG) - FM Approval Guide; current edition.

K. FM DS 1-28 - Wind Design; 2016.

L. NRCA (RM) - The NRCA Roofing Manual; 2018.

M. UL (FRD) - Fire Resistance Directory; Current Edition.

1.03 ADMINISTRATIVE REQUIREMENTS

A. Preinstallation Meeting: Convene one week before starting work of this section.

1. Review preparation and installation procedures and coordinating and scheduling required with related work.

1.04 SUBMITTALS

A. See Section 01 3000 - Administrative Requirements, for submittal procedures.

B. Product Data: Provide manufacturer's catalog data for membrane and bitumen materials, base flashing materials, insulation, vapor retarder, and surfacing.

1. Sustainable Design Submittal: Include testing documentation of solar reflectance index.

C. Shop Drawings: Indicate joint or termination detail conditions, conditions of interface with other materials, setting plan for tapered insulation, and mechanical fastener layout.

D. Samples of Aggregate: Submit two (2) one pound containers of roofing aggregate.

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E. Manufacturer's Installation Instructions: Indicate special procedures.

F. Warranty: Submit manufacturer warranty and ensure forms have been completed in Owner's name and registered with manufacturer.

1.05 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in manufacturing the products specified in this section with minimum three years of documented experience.

B. Installer Qualifications: Company specializing in performing the work of this section with minimum three years documented experience.

1.06 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials in manufacturer's original containers, dry and undamaged, with seals and labels intact.

B. Store materials in weather protected environment, clear of ground and moisture; ballast materials may be stored outdoors.

C. Ensure storage and staging of materials does not exceed static and dynamic load-bearing capacities of roof decking.

1.07 FIELD CONDITIONS

A. Do not apply roofing membrane when environmental conditions are outside the ranges recommended by manufacturer.

B. Do not apply roofing membrane during unsuitable weather.

C. Do not apply roofing membrane when ambient temperature is below 40 degrees F.

D. Do not apply roofing membrane to damp or frozen deck surface or when precipitation is expected or occurring.

E. Do not expose materials vulnerable to water or sun damage in quantities greater than can be weatherproofed the same day.

F. Schedule applications so that no partially completed sections of roof are left exposed at end of workday.

1.08 WARRANTY

A. Manufacturer's No Dollar Limit (NDL) Warranty. The manufacturer shall provide the owner with the manufacturer’s warranty providing labor and materials for 20 years from the date the warranty is issued.

B. The contractor shall guarantee the workmanship and shall provide the owner with the contractor’s warranty covering workmanship for a period of 2 years from completion date.

PART 2 PRODUCTS

2.01 PERFORMANCE REQUIREMENTS

A. MODIFIED BITUMINOUS ROOFING: Cold applied, two-ply membrane assembly, ½” cover board, R-30 minimum iso.

B. WIND UPLIFT RESISTANCE:

1. Performance testing shall be in accordance with ANSI/FM 4474, FM 4450, FM 4470, UL

580 or UL 1897.

a. Roof System Design Pressures: Calculated in accordance with ASCE 7, or applicable standard, for the specified roof system attachment requirements.

b. Approval Rating:

1) FM 1-90

C. FIRE CLASSIFICATION:

1. Performance testing shall be in accordance with UL 790, ASTM E108, FM 4450 or FM 4470 to meet the ¼”:12 roof slope requirement.

a. Meets requirements of UL Class A or FM Class A.

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AMENDMENT 005

MODIFIED BITUMINOUS

2. Performance testing shall be in accordance with UL 1256, FM 4450 or FM 4470 to meet the specified requirements for interior flame spread and fuel contribution.

a. Meets requirements of UL 1256, or FM Class 1.

D. ROOF SLOPE:

1. Finished roof slope for SBS modified bitumen surfaces shall be ¼ inch per foot (2 percent) minimum for roof drainage.

E. IMPACT RESISTANCE:

1. Performance testing for impact resistance shall be in accordance with FM 4450, FM 4470, ASTM D3746 or CGSB 37-GP 56M to meet the specified impact resistance requirements.

a. Meets requirements for FM-SH (Severe Hail), ASTM D3746, or CGSB 37-GP 56M.

F. CYCLIC FATIGUE:

1. The roof system shall pass ASTM D5849 Standard Test Method for Evaluating Resistance of Modified Bituminous Roofing Membrane to Cyclic Fatigue (Joint Displacement). Passing results shall show no signs of cracking, splitting or tearing over the joint.

a. Roof system shall pass Test Condition 5, tested at -4°F (-20°C) in accordance with

ASTM D5849.

G. ENERGY CONSERVATION REQUIREMENTS:

1. Polyisocyanurate Insulation "R" Value: Shall be determined in accordance with ASTM C1289-11a.

2. Thermal Resistance ‘R’ for the specified roof insulation system shall include the continuous insulation (ci) above the roof deck.

a. Total Thermal Resistance R Value, continuous insulation (ci) above-deck: R-30 minimum.

2.02 SBS-MODIFIED BITUMEN MEMBRANES

A. BASE PLY:

1. FIELD BASE PLY, COLD ADHESIVE:

a. SBS-modified bitumen membrane sanded on both top and bottom surfaces. Non-woven polyester reinforcement. Meets or exceeds ASTM D6163, Type I, Grade S, per ASTM D5147 test methods:

i. Thickness: 87 mils

ii. Peak load @ 0°F, lbf/in.

a) MD 100 lbf/in, XMD 90 lbf/in

iii. Elongation at peak load @ 0°F, lbf/in:

a) MD 4%, XMD 4%

iv. Ultimate Elongation @ 73.4°F, lbf/in:

a) MD 45%, XMD 45%

v. Tear Strength @ 73.4°F, lbf:

a) MD 60 lbf, XMD 60 lbf

vi. Low temperature flexibility, °F:

a) MD/XMD: -15°F

2. FLASHING BASE PLY, COLD ADHESIVE:

a. SBS-modified bitumen membrane with sand on the bottom surface and plastic burn-off film on the top surface for heat-welding side and end-laps and heat welding sheets above. Non-woven polyester reinforcement.

Meets or exceeds ASTM D6164, Type I, Grade S, per ASTM D5147 test methods:

i. Thickness: 97 mils

ii. Peak load @ 0°F, lbf/in.

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a) MD 110 lbf/in, XMD 85 lbf/in

iii. Elongation at peak load @ 0°F, lbf/in:

a) MD 35%, XMD 40%

iv. Ultimate Elongation @ 73.4°F, lbf/in:

a) MD 60%, XMD 65%

v. Tear Strength @ 73.4°F, lbf:

a) MD 125 lbf, XMD 85 lbf

vi. Low temperature flexibility, °F:

a) MD/XMD: -15°F

B. CAP SHEET:

1. FIELD CAP SHEET, COLD ADHESIVE APPLIED:

a. SBS-modified bitumen membrane Cap Sheet with a sanded bottom surface and mineral granule top surface. Glass fiber reinforced. UL Class A for low-slope (LS) roof applications. Meets or exceeds ASTM D6163, Type I, Grade G, per ASTM D5147 test methods: Thickness: 138 mils

i. Peak load @ 0°F, lbf/in.

a) MD 110 lbf/in, XMD 95 lbf/in

ii. Elongation at peak load @ 0°F, lbf/in:

a) MD 4%, XMD 4%

iii. Ultimate Elongation @ 73.4°F, lbf/in:

a) MD 50%, XMD 50%

iv. Tear Strength @ 73.4°F, lbf:

a) MD 60 lbf, XMD 60 lbf

v. Low temperature flexibility, °F:

a) MD/XMD: -15°F

vi. Granule Surfacing:

a) White mineral granules.

2. FLASHING CAP SHEET, EAT WELDED:

a. SBS-modified bitumen membrane Cap Sheet with a plastic burn-off film bottom surface and aluminum foil-clad top surface. Glass grid reinforced.

All SBS modified bitumen foil-clad membrane and flashing sheets shall be manufactured by the supplier. Meets or exceeds ASTM D6298, per ASTM D5147 test methods:

i. Thickness: 157 mils

ii. Peak load @ 0°F, lbf/in.

a) MD 200 lbf/in, XMD 175 lbf/in

iii. Elongation at peak load @ 0°F, lbf/in:

a) MD 10%, XMD 10%

iv. Ultimate Elongation @ 73.4°F, lbf/in:

a) MD 50%, XMD 50%

v. Tear Strength @ 73.4°F, lbf:

a) MD 190 lbf, XMD 205 lbf

vi. Low temperature flexibility, °F:

a) MD/XMD: -15°F

vii. Aluminum foil-clad surfacing listed by the Cool Roof Rating Council

(CRRC) and EPA EnergyStar Approved:

FAA BMB Renovation Type B

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AMENDMENT 005

MODIFIED BITUMINOUS

2.03 THERMAL INSULATION SYSTEM

A. RIGID INSULATION

1. POLYISOCYANRATE INSULATION

a. Closed cell polyisocyanurate foam core bonded on each side to a glass fiber-reinforced felt facer.

i. Thickness: 1.5 in minimum board thickness. Total thickness to meet specified insulation system thermal resistance ‘R’ value

ii. Dimensions: 4 x 4 ft or 4 x 8 ft boards

b. Meets or exceeds ASTM C1289, Type II, Class 1, Grade 2 (20 psi).

2. Closed cell polyisocyanurate foam core bonded on each side to a glass fiber-reinforced felt facer, tapered to provide slope.

i. Taper: 1/4 in per foot minimum and as shown on drawings. Insulation, crickets and saddles provided with taper as required for positive roof slope.

ii. Dimensions: 4 x 4 ft boards

3. Meets or exceeds ASTM C1289, Type II, Class 1, Grade 2 (20 psi).

B. COVER-BOARD

1. GYPSUM ROOF BOARD

a. National Gypsum Company, DEXcell FA Glass Mat Roof Board:

i. Gypsum core, glass fiber-faced, roof board:

ii. Thickness: 1/2 in

iii. Dimensions: 4 x 4 ft or 4 x 8 ft boards

iv. Facer: Glass fiber.

v. Meets or exceeds ASTM C1177/C1177M.

2.04 ACCESSORIES

A. POLYURETHANE FOAM INSULATION ADHESIVE

a. Two-component, polyurethane foam insulation adhesive, applied in ribbons from cartridges or two-component bulk packaging with pump-driven delivery system.

i. Ribbon size: 1/2 in to 3/4 in wide.

ii. Ribbon spacing: As required to meet specified wind uplift resistance performance.

a) Field of Roof (Zone 1): 12 in on-centers

b) Perimeter of Roof (Zone 2): 6 in on-centers

c) Corners of Roof (Zone 3): 4 in on-centers

B. INSULATION FASTENERS AND PLATES

1. #14 MP FASTENER and SOPREMA 3 IN INSULATION PLATE: Insulation system fasteners and metal stress plates.

C. PRIMERS:

1. Asphalt cut-back primer. Primer for the preparation of membrane substrates for asphalt, heat-welded, hot asphalt and COLPLY ADHESIVE, solvent-based, cold adhesive-applied and cement applications.

a. Meets or exceeds ASTM D41

D. FLASHING CEMENT

1. SBS-modified bitumen membrane flashing cement for use with sanded base ply flashing and granule-surfaced Cap Sheet flashing.

a. Meets or exceeds ASTM D4586

FAA BMB Renovation Type B

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AMENDMENT 005

MODIFIED BITUMINOUS

2. Premium , non-toxic, low-odor, solvent-free, polymeric membrane flashing cement for use with sanded base ply and all sanded Cap Sheet flashing applications.

a. For adhering membranes that will receive PMMA flashing resin

E. GENERAL PURPOSE ROOFING CEMENT AND MASTIC

1. SBS Mastic. Fiber-reinforced, roofing cement. General purpose roofing cement for low-slope roofing used for sealing membrane T-joints and membrane edges along terminations, transitions and at roof penetrations.

a. Meets or exceeds ASTM D4586, Type I, Class II.

F. GENERAL PURPOSE SEALANT

1. General purpose, paintable, gun-grade, elastomeric, polyether moisture curing sealant for sealing SBS membrane terminations, Kynar 500 PVDF, horizontal and vertical construction joints.

a. Meets or exceeds ASTM C920, Type S, Grade NS, Class 50.

G. LIQUID-APPLIED REINFORCED FLASHING SYSTEM:

1. Catalyzed polymethyl methacrylate (PMMA) resin with polyester reinforcing fleece fabric fully embedded into the resin to form fully-reinforced waterproofing membrane flashings.

a. Reactive agent added to the PMMA liquid resin to induce curing.

b. Polyester reinforcement fabric.

c. Color: White

H. MINERAL GRANULES:

1. No. 11, mineral coated colored granules, color to match cap sheet, supplied by membrane cap sheet manufacturer.

I. WALKWAY PROTECTION:

1. SOPREMA SOPRAWALK: Polyester reinforced SBS modified bitumen walkway protection with a granule surface and sanded underside.

a. Thickness: 200 mils

b. Width: 39.4 in

c. Granule Surfacing:

i. Color: grey

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that surfaces and site conditions are ready to receive work.

B. Verify deck is supported and secure.

C. Verify deck is clean and smooth, flat, free of depressions, waves, or projections, properly sloped and suitable for installation of roof system.

D. Verify deck surfaces are dry and free of snow or ice.

E. Verify that roof openings, curbs, and penetrations through roof are solidly set, and cant strips are in place.

3.02 INSULATION INSTALLATION

A. Fasten insulation to the deck using specified insulation fasteners and plates.

B. Evenly distribute fasteners as required by the board manufacturer’s published requirements.

C. Fasten the insulation to meet the specified wind uplift resistance performance requirements and warranty requirements.

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MODIFIED BITUMINOUS

D. For insulation and Cover-boards located partially within the defined perimeter and/or corners, install fastening for the entire board as specified herein.

COVER BOARD APPLICATION

A. Apply the specified two-component insulation adhesive to adhere Cover-board to the deck and insulation substrate(s).

B. Follow insulation adhesive product data sheets and published general requirements for installation requirements.

C. Apply insulation adhesive in uniform ribbons, 1/2 in to 3/4 in wide.

D. Immediately install insulation components into insulation adhesive, and apply weight to ensure the materials maintain full contact with all ribbons for complete adhesion. Do not allow insulation adhesive to skin-over before placing the insulation materials into the adhesive.

E. Adhere the insulation system to meet the specified wind uplift resistance performance and specified warranty requirements.

F. Minimum insulation adhesive ribbon spacing:

1. Field of Roof (Zone 1): 12 in on-centers.

2. Perimeter of Roof (Zone 2): 6 in on-centers.

3. Corners of Roof (Zone 3): 4 in on-centers.

3.03 MEMBRANE APPLICATION

A. Apply modified bituminous membrane roofing system in accordance with manufacturer's recommendations and NRCA (RM) applicable requirements.

B. Apply membrane; lap and seal edges and ends permanently waterproof.

C. Apply smooth, free from air pockets, wrinkles, fish-mouths, or tears. Ensure full bond of membrane to substrate.

D. At end of day's operation, install waterproof cut-off. Remove cut-off before resuming roofing.

E. At intersections with vertical surfaces:

1. Extend membrane over cant strips and up a minimum of 8 inches onto vertical surfaces.

2. Apply flexible flashing over membrane.

F. Around roof penetrations, mop in and seal flanges and flashings with flexible flashing.

G. Install roofing expansion joints. Make joints watertight.

H. Coordinate installation of roof drains and sumps and related flashings.

3.04 SURFACING - CONVENTIONAL APPLICATION

A. Install walkway pads by setting in hot bitumen. Set joints 6 inches apart.

3.05 FIELD QUALITY CONTROL

A. See Section 01 4000 - Quality Requirements, for general requirements for field quality control and inspection.

B. Require site attendance of roofing and insulation material manufacturers daily during installation of the Work.

3.06 CLEANING

A. Remove bituminous markings from finished surfaces.

B. In areas where finished surfaces are soiled by bitumen or other source of soiling caused by work of this section, consult manufacturer of surfaces for cleaning advice and comply with their documented instructions.

C. Repair or replace defaced or damaged finishes caused by work of this section.

3.07 PROTECTION

A. Protect installed roofing and flashings from construction operations.

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B. Where traffic must continue over finished roof membrane, protect surfaces using durable materials.

END OF SECTION