AMENDMENT 2 - Q and A.pdf

ADAL C-17 AGE ADDENDUM #2 Page 1 of 5

TO ALL BIDDERS ADDENDUM NO. 2

Date: 05/07/20

Project: ADAL C-17 AGE Facility Building 14415

Project No.: FXSB172535

The following changes, additions, and/or clarifications shall be made to the specifications and drawings for the work of the above project.

This addendum forms a part of the contract documents and in case of a conflict between drawings, specifications, and this addendum, the addendum shall govern.

Bid Questions, received 4/29/20 via email from Gerald Romig

1. In the specifications section Division 8, does the architectural team intend to provide a specification for the coiling doors

AE Response:

Specification –Table of Contents Add: Specification “083323 OVERHEAD COILING DOORS”.

Specification -See attached Add: Specification “083323 OVERHEAD COILING DOORS”.

2. Drawing # CD-101 – Note @ utility clean-out states “Unable to open”. Has clean-out been able to be opened since date of Lounsbury survey (01/31/2019) and will this clean-out need to be relocated?

AE Response: The design team was not able to open during initial site visit. The survey was not tasked with ‘opening’ the clean out. No, this Cleanout is not intended to be relocated. The intent is for the new to be adjacent to the cleanout

3. Drawing #CS-101 – Symbol 3 referencing bollards, calls out “(TYP (6))”, Drawing A-110, Symbol 5.16 referencing bollards, calls out “TYP (20))”.

AE Response: CS-101 is showing the 6 exterior bollards. A-110 is showing exterior and interior bollards. There are 20 total bollards.

ADAL C-17 AGE ADDENDUM #2 Page 2 of 5

4. Drawing #A-110 – Note 7.14 Calls for “expansion joint and cover”, Symbol 7.14 at gridline 4 says “TYP”. Typical of how many?

AE Response: Expansion joint and cover are linear, and need to be provided where the new walls and roof structure meets the existing. Refer to elevations, sections and roof plan for all the locations.

5. Drawing #A-110 – Note 0.30 calls out “cut existing slab to connect new floor drains”, Demo and replace note on Drawing #S-110, note 7 references same. No cut dimensions are given. Are the cut dimensions to be determined by the contractor and will overcutting be allowed? Is the existing slab to be cut thickness and reinforcement known? Are there any conduit/piping/structural elements to be aware of in the area of the referenced cut?

AE Response: Contractor to determine the cut dimensions to accomplish the work. The existing slab to be demolished is 8” thick, reinforced with #4@12” each way (Contractor to verify in field). See new attached Slab Patch detail to be located at #16/S-500. The existing wall footings which are shown graphically on the drawings are about 4’-0” below ground, so they should not be encountered during demo. We do not know of any existing below grade “conduit/piping/structural elements”.

Drawing -S-110 – Keynote 7 Replace: “DEMO AND REPLACE CONCRETE SLABE FOR DRAIN INSTALLATION. REPLACE

WITH MIN. 6” THICK CONCRETE REINFORCED WITH #4@12: O.C. EA. WAY”.

With: “DEMO AND REPLACE CONCRETE SLAB FOR DRAIN INSTALLATION. REPLACE WITH

8” THICK CONCRETE PER DETAIL 16/S-500”.

Drawing – S-500 Add: Detail #16 Slab Patch.

6. Drawing #A-110 – Under Legend, removal of existing CMU walls and veneer is referenced. Does the location of the CMU walls and veneer removal coincide with the dimensions given on Drawing #A-110 Floor Plan specific to Door 100F?

AE Response: Yes.

7. Drawing #A-201 – Detail 2 – Roof Plan calls for a ½:12 slope from building grids 4 & 5 to an apparent low point valley running from building grid B.2 towards the roof drain at the southeast corner of the new roof. Drawing #S-110 Detail 2 indicates a single slope with an approximate 10” elevation change running from building grid 4 to building grid 5. Is the intent for the new finished roof drainage configuration to adhere to Detail 2 on Drawing #A-201.

ADAL C-17 AGE ADDENDUM #2 Page 3 of 5

AE Response: The intent is for the slope to follow the ½:12 single slope of the roof joists.

See attached revised roof plan for the ¼:12 cricket to slope to the roof drain.

Drawing -A-201– Roof Plan Replace: Roof Plan 2 / A-201 With: Attached revised Roof Plan 2/A-201.

8. Note – At the southeast corner of the existing building (near building gridlines 4 & D), there are two existing fire department connection points to the building fire suppression system. The lower of the two connection points appears to be in very close proximity to the new foundation connection/intersection point with the existing building. Does this connection point need to be relocate to avoid conflict with the new building addition construction?

AE Response: Relocate both the backflow test header and fire department connection east along the existing wall until the FDC is 3’-0” from the new wall. Maintain the same orientation. The test header is not required to be 3’-0” from the new wall. Fill and patch remaining holes to match colors and finishes. Provide shop drawings for the piping revisions required within the Riser room. Provide signage to differentiate between the two connections. Relocate the FDC strobe.”

9. Arch Drawings A201 & S110 indicate a finished structural slope from Grids 4-5 of ½:12 slope. This would result in an approx.. drop in elevation of 15:. Roof drain is located on gridline 5 at one side of the addition at approx.. gridline C.7 Roof Plan indicates finished slope for the roof should be ½:12 . In order for the tapered insulation cricket to counter slope the structural slope and provide a finished ½:12 slope it will need to 1:12 taper.

This will make the cricket height at Grid B.2/5 Line approx.. 26” deep and with the R30 insulation and Coverboard well over 30” dep. Exterior parapet framing appears to show a 24: tall wall at this location. We suggest relocating the roof drains to the center of the addition along grid 5, to shorten the depth of the required cricketing.

AE Response: Add 4 courses of CMU to the perimeter parapet wall on all 4 sides.T.O.

CMU = 23'-4". See question #7, regarding the roof slope change.

Drawing -A-201 – Roof Plan #2/A-201, Elevation-West #3/A-201, Elevation-South #4/A-201 and Elevation-West #5/A-201.

Replace: Sheet A-201 With: revised Sheet A-201

Drawing -A-300 – Building Section E/W #1/A-300, Building Section N/S #2/A-300, Wall Section #3/A-300

ADAL C-17 AGE ADDENDUM #2 Page 4 of 5

Replace: Sheet A-300 With: revised Sheet A-300

10. Sheet A201 indicates metal roofing at two canopies, but there is no metal roof specification to indicate what type and profile is desired.

AE Response:. See attached ‘Standing Seam Metal Roofing Panel’ specification.

Specification –Table of Contents Add: Specification “074113.16 STANDING SEAM METAL ROOFING PANELS”.

Specification -See attached Add: Specification “074113.16 STANDING SEAM METAL ROOFING PANELS”.

11. Sect 75419 PVC roofing. Does not call a vapor barrier or thermal barrier for the roof assembly. Vapor barriers are standard for this region typically, due to our average winter temps. Thermal barriers are typically required to meet Class A fire ratings. In addition, no PVC membrane manufacturer is called out, however, insulation manufacturers are. In order to meet total system warranty requirements, the membrane manufacturer will need to be the manufacturer of all their components, including insulation. Suggest adding membrane manufacturer callout, standard for this region is Carlisle, Sarnafil & JM.

Standard insulation types for this region are Expanded Polystyrene and Isocyanate (Poly Iso). Suggest adding both to the roof specifications.

AE Response: See revised attached PVC Roofing specification and revised Roof System Detail #1/A-600.

Remove: existing Specification “075419 POLYVINYL-CHLORIDE (PVC) ROOFING”.

Replace with attached: Specification “075419 POLYVINYL-CHLORIDE (PVC) ROOFING”.

Drawing – A-600 Detail 1 Replace: Detail #1/A-600 With Attached: Detail #1/A-600

12. 075419 2.1 1.11 Warranty indicates a ten-year manufacturer material and watertight warranty, with a 2yr workmanship warranty from the Installer. No wind uplift warranty is called out.

AE Response: See response to question #11..

13. 2.1 Performance Requirements indicated uplift pressures that the assembly will withstand.

ADAL C-17 AGE ADDENDUM #2 Page 5 of 5

AE Response:. See response to question #11.

14. 3.10 Roofer installer warranty Sect B indicates damage from peak wind uplift gusts of over 132 mph are excluded from the installers warranty. This indicates two things: 1-intent is for the installer to warrant the roof for wind uplifts to 131 mph 2- That there is a desire for a wind warranty on this project.

AE Response:. See response to question #11.

15. Wind/Uplift warranties come from the manufacturer, not installers, and no wind uplift warranty is asked for in the roof warranty section. Suggest removing this line.

AE Response:. See response to question #11.

16. Will the data that needs to be run, be required for contractor to terminate at both ends?

AE Response:. Yes.

17. Will bollards with bolt down plates be acceptable at interior coil up door locations in the existing building.

AE Response:. Yes.

18. Specification Section 323300 – 2.5 Steel and Galvanized – Steel Finishes. Are the bollards to be provided to have a powder finish or are painted bollards acceptable?

AE Response:. Provide powder-coat finish per specification.

19. Wil mil certs need to be provided for all steel?

AE Response:. Refer to the individual specifications for all the required Certificates.

End of Questions

Joint Base Elmendorf Richardson (JBER) AK ANG Project No. FXSB162207 ADAL C-17 AGE Facility Building 14415 Jacobs Project No. FDZD9300 Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 1

SECTION 083323

OVERHEAD COILING DOORS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Insulated service doors.

B. Related Requirements:

1. Section 099123 "Interior Painting" for finish painting of factory-primed doors.

1.3 ACTION SUBMITTALS

A. Product Data: For each type and size of overhead coiling door and accessory.

1. Include construction details, material descriptions, dimensions of individual components, profiles for slats, and finishes.

2. Include rated capacities, operating characteristics, electrical characteristics, and furnished accessories.

3. Include description of automatic closing device and testing and resetting instructions.

B. Shop Drawings: For each installation and for special components not dimensioned or detailed in manufacturer's product data.

1. Include plans, elevations, sections, and mounting details.

2. Include details of equipment assemblies, and indicate dimensions, required clearances, method of field assembly, components, and location and size of each field connection.

3. Include points of attachment and their corresponding static and dynamic loads imposed on structure.

4. For exterior components, include details of provisions for assembly expansion and contraction and for excluding and draining moisture to the exterior.

Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 2

5. Show locations of controls, locking devices, and other accessories.

6. Include diagrams for power, signal, and control wiring.

1.4 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer.

1.5 CLOSEOUT SUBMITTALS

A. Maintenance Data: For overhead coiling doors to include in maintenance manuals.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by manufacturer for both installation and maintenance of units required for this Project.

1. Maintenance Proximity: Not more than four hours' normal travel time from Installer's place of business to Project site.

PART 2 - PRODUCTS

2.1 MANUFACTURERS, GENERAL

A. Source Limitations: Obtain overhead coiling doors from single source from single manufacturer.

1. Obtain operators and controls from overhead coiling door manufacturer.

2.2 PERFORMANCE REQUIREMENTS

A. Seismic Performance: Overhead coiling doors shall withstand the effects of earthquake motions determined according to ASCE/SEI 7-10.

1. Component Importance Factor: 1.0.

2.3 DOOR ASSEMBLY

A. Insulated Service Door: Overhead coiling door formed with curtain of interlocking metal slats.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 3

a. ACME Rolling Doors.

b. Alpine Overhead Doors, Inc.

c. Alumatec Pacific Products.

d. Amarr Garage Doors.

e. ASTA Door Corporation.

f. C.H.I. Overhead Doors, Inc.

g. City-Gates.

h. Clopay Building Products.

i. Cookson Company.

j. Cornell Iron Works, Inc.

k. Lawrence Roll-Up Doors, Inc.

l. McKeon Rolling Steel Door Company, Inc.

m. Metro Door.

n. Overhead Door Corporation.

o. Raynor.

p. Southwestern Rolling Steel Door Co.

q. Wayne-Dalton Corp.

B. Operation Cycles: Door components and operators capable of operating for not less than 10,000. One operation cycle is complete when a door is opened from the closed position to the fully open position and returned to the closed position.

C. Air Infiltration: Maximum rate of 1.0 cfm/sq. ft. at 15 and 25 mph when tested according to ASTM E 283.

D. STC Rating: 26.

E. Curtain R-Value: 6.0 deg F x h x sq. ft./Btu.

F. Door Curtain Material: Galvanized steel.

G. Door Curtain Slats: Flat profile slats of 3-1/4-inch center-to-center height.

1. Insulated-Slat Interior Facing: Metal.

2. Gasket Seal. Manufacturer's standard continuous gaskets between slats.

H. Bottom Bar: Two angles, each not less than 1-1/2 by 1-1/2 by 1/8 inch thick; fabricated from hot-dip galvanized steel and finished to match door.

I. Curtain Jamb Guides: Galvanized steel with exposed finish matching curtain slats.

J. Hood: Match curtain material and finish.

1. Shape: Square.

2. Mounting: Face of wall.

K. Locking Devices: Equip door with slide bolt for padlock.

L. Electric Door Operator:

Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 4

1. Usage Classification: Medium duty, up to 12 cycles per hour and up to 50 cycles per day.

2. Operator Location: Wall.

3. Safety: Listed according to UL 325 by a qualified testing agency for commercial or industrial use.

4. Motor Exposure: Interior.

5. Emergency Manual Operation: Chain type.

6. Obstruction-Detection Device: Automatic photoelectric sensor; self-monitoring type.

7. Control Station(s): Interior mounted.

M. Curtain Accessories: Equip door with weatherseals.

N. Door Finish:

1. Factory Prime Finish: Manufacturer's standard color.

2.4 MATERIALS, GENERAL

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

2.5 DOOR CURTAIN MATERIALS AND CONSTRUCTION

A. Door Curtains: Fabricate overhead coiling-door curtain of interlocking metal slats, designed to withstand wind loading indicated, in a continuous length for width of door without splices. Unless otherwise indicated, provide slats of thickness and mechanical properties recommended by door manufacturer for performance, size, and type of door indicated, and as follows:

1. Steel Door Curtain Slats: Zinc-coated (galvanized), cold-rolled structural steel sheet; complying with ASTM A 653/A 653M, with G90 zinc coating; nominal sheet thickness (coated) of 0.028 inch; and as required.

B. Curtain Jamb Guides: Manufacturer's standard angles or channels and angles of same material and finish as curtain slats unless otherwise indicated, with sufficient depth and strength to retain curtain, to allow curtain to operate smoothly, and to withstand loading. Slot bolt holes for guide adjustment. Provide removable stops on guides to prevent overtravel of curtain.

2.6 HOODS

A. General: Form sheet metal hood to entirely enclose coiled curtain and operating mechanism at opening head. Contour to fit end brackets to which hood is attached.

Roll and reinforce top and bottom edges for stiffness. Form closed ends for surface-mounted hoods and fascia for any portion of between-jamb mounting that projects

Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 5

beyond wall face. Equip hood with intermediate support brackets as required to prevent sagging.

1. Galvanized Steel: Nominal 0.028-inch-thick, hot-dip galvanized steel sheet with G90 zinc coating, complying with ASTM A 653/A 653M.

2.7 LOCKING DEVICES

A. Slide Bolt: Fabricate with side-locking bolts to engage through slots in tracks for locking by padlock, located on both left and right jamb sides, operable from coil side.

2.8 CURTAIN ACCESSORIES

A. Smoke Seals: Equip each fire-rated door with replaceable smoke-seal perimeter gaskets or brushes for smoke and draft control as required for door listing and labeling by a qualified testing agency.

2.9 ELECTRIC DOOR OPERATORS

A. General: Electric door operator assembly of size and capacity recommended and provided by door manufacturer for door and operation-cycles requirement specified, with electric motor and factory-prewired motor controls, starter, gear-reduction unit, solenoid-operated brake, clutch, control stations, control devices, integral gearing for locking door, and accessories required for proper operation.

1. Comply with NFPA 70.

2. Control equipment complying with NEMA ICS 1, NEMA ICS 2, and NEMA ICS 6, with NFPA 70 Class 2 control circuit, maximum 24-V ac or dc.

B. Usage Classification: Electric operator and components capable of operating for not less than number of cycles per hour indicated for each door.

C. Door Operator Location(s): Operator location indicated for each door.

1. Top-of-Hood Mounted: Operator is mounted to the right or left door head plate with the operator on top of the door-hood assembly and connected to the door drive shaft with drive chain and sprockets.

D. Motors: Reversible-type motor with controller (disconnect switch) for motor exposure indicated.

1. Electrical Characteristics:

a. Phase: Three phase.

b. Volts: 120 V.

c. Hertz: 60.

Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 6

2. Motor Size: Minimum size as indicated. If not indicated, large enough to start, accelerate, and operate door in either direction from any position, at a speed not less than 8 in./sec. and not more than 12 in./sec., without exceeding nameplate ratings or service factor.

3. Operating Controls, Controllers, Disconnect Switches, Wiring Devices, and Wiring: Manufacturer's standard unless otherwise indicated.

4. Coordinate wiring requirements and electrical characteristics of motors and other electrical devices with building electrical system and each location where installed.

E. Limit Switches: Equip each motorized door with adjustable switches interlocked with motor controls and set to automatically stop door at fully opened and fully closed positions.

F. Obstruction Detection Devices: External entrapment protection consisting of indicated automatic safety sensor capable of protecting full width of door opening. For non-fire-rated doors, activation of device immediately stops and reverses downward door travel.

1. Photoelectric Sensor: Manufacturer's standard system designed to detect an obstruction in door opening without contact between door and obstruction.

a. Self-Monitoring Type: Designed to interface with door operator control circuit to detect damage to or disconnection of sensing device. When self-monitoring feature is activated, door closes only with sustained or constant pressure on close button.

G. Control Station: Three-button control station in fixed location with momentary-contact push-button controls labeled "Open" and "Stop" and sustained- or constant-pressure push-button control labeled "Close."

1. Interior-Mounted Units: Full-guarded, surface-mounted, heavy-duty type, with general-purpose NEMA ICS 6, Type 1 enclosure.

H. Emergency Operation Disconnect Device: Equip operator with hand-operated disconnect mechanism for automatically engaging manual operator and releasing brake for emergency manual operation while disconnecting motor without affecting timing of limit switch. Mount mechanism so it is accessible from floor level. Include interlock device to automatically prevent motor from operating when emergency operator is engaged.

I. Motor Removal: Design operator so motor may be removed without disturbing limit-switch adjustment and without affecting emergency manual operation.

J. Audible and Visual Signals: Audible alarm and visual indicator lights in compliance with regulatory requirements for accessibility.

Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 7

2.10 GENERAL FINISH REQUIREMENTS

A. Comply with NAAMM/NOMMA's "Metal Finishes Manual for Architectural and Metal Products (AMP 500-06)" for recommendations for applying and designating finishes.

B. Appearance of Finished Work: Noticeable variations in same piece are not acceptable.

Variations in appearance of adjoining components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast.

2.11 STEEL AND GALVANIZED-STEEL FINISHES

A. Factory Prime Finish: Manufacturer's standard primer, compatible with field-applied finish. Comply with coating manufacturer's written instructions for cleaning, pretreatment, application, and minimum dry film thickness.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates areas and conditions, with Installer present, for compliance with requirements for substrate construction and other conditions affecting performance of the Work.

B. Examine locations of electrical connections.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install overhead coiling doors and operating equipment complete with necessary hardware, anchors, inserts, hangers, and equipment supports; according to manufacturer's written instructions and as specified.

B. Install overhead coiling doors, hoods, controls, and operators at the mounting locations indicated for each door.

C. Accessibility: Install overhead coiling doors, switches, and controls along accessible routes in compliance with regulatory requirements for accessibility.

3.3 STARTUP SERVICE

A. Engage a factory-authorized service representative to perform startup service.

1. Perform installation and startup checks according to manufacturer's written instructions.

Addendum #2 5 May 2020

OVERHEAD COILING DOORS 083323 - 8

2. Test and adjust controls and safety devices. Replace damaged and malfunctioning controls and equipment.

3. Test door closing when activated by detector or alarm-connected fire-release system. Reset door-closing mechanism after successful test.

3.4 ADJUSTING

A. Adjust hardware and moving parts to function smoothly so that doors operate easily, free of warp, twist, or distortion.

1. Adjust exterior doors and components to be weather-resistant.

B. Lubricate bearings and sliding parts as recommended by manufacturer.

C. Adjust seals to provide tight fit around entire perimeter.

3.5 MAINTENANCE SERVICE

A. Initial Maintenance Service: Beginning at Substantial Completion, maintenance service shall include 12 months' full maintenance by skilled employees of coiling-door Installer.

Include quarterly preventive maintenance, repair or replacement of worn or defective components, lubrication, cleaning, and adjusting as required for door operation. Parts and supplies shall be manufacturer's authorized replacement parts and supplies.

1. Perform maintenance, including emergency callback service, during normal working hours.

2. Include 24-hour-per-day, seven-day-per-week, emergency callback service.

3.6 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain overhead coiling doors.

END OF SECTION 083323

SAWCUT LIMIT

LINE, SEE PLANTYP.

4"

(1'-6" MIN.)

AS REQ'D.

E Q

2"

(E) CONC. S.O.G.

TO REMAIN

DRILL & EPOXY

DOWELS #4 x LENGTH

@ 12" O.C. TYP.

COMPACTED SOIL TO

95% MAX. DENSITY

#4 CONT. @ 12"

O.C. E.W.

UNDERGROUND

UTILITY LINE

NOTES:

1. EPOXY SHALL BE HILTI HIT-RE 500-SD, ICC-ESR #2322

OR SIMPSON SET-XP, ICC ESR #2508 OR APPROVED EQUAL.

2 PROVIDE 6" MAIN CONCRETE COVER FOR ENCASEMENT OF

EXISTING UNDERGROUND UTILITIES.

10 MIL VAPOR RETARDER

OVER 2" SAND

E Q

SCALE: 1" = 1'-0" S-9.01

1TYP. SLAB PATCH DETAIL

SD-2.01

S-500S-110

Addendum #2 05 May, 2020

STANDING SEAM METAL ROOFING PANELS 074113.16 - 1

SECTION 074113.16

STANDING SEAM METAL ROOFING PANELS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Standing-seam metal roof panels.

B. Related Requirements:

1. Section 052100 “Structural Steel Framing” for structural supports.

2. Section 053100 “Steel Decking” for structural support.

1.3 ACTION SUBMITTALS

A. Product Data: For each type product.

1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each type of panel and accessory.

B. Shop Drawings:

1. Include fabrication and installation layouts of metal panels; details of edge conditions, joints, panel profiles, corners, anchorages, attachment system, trim, flashings, closures, and accessories; and special details.

2. Accessories: Include details of the flashing, trim, and anchorage systems, at a scale of not less than 1-1/2 inches per 12 inches (1:10).

C. INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer.

Addendum #2 05 May, 2020

STANDING SEAM METAL ROOFING PANELS 074113.16 - 2

B. Product Test Reports: For each product, for tests performed by a qualified testing agency.

C. Field quality-control reports.

D. Sample Warranties: For special warranties.

1.4 CLOSEOUT SUBMITTALS

A. Maintenance Data: For metal panels to include in maintenance manuals.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by manufacturer. Retain "Maintenance Proximity" Subparagraph below if retaining "Maintenance Service" Article.

1.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver components, metal panels, and other manufactured items so as not to be damaged or deformed. Package metal panels for protection during transportation and handling.

B. Unload, store, and erect metal panels in a manner to prevent bending, warping, twisting, and surface damage.

C. Stack metal panels horizontally on platforms or pallets, covered with suitable weathertight and ventilated covering. Store metal panels to ensure dryness, with positive slope for drainage of water. Do not store metal panels in contact with other materials that might cause staining, denting, or other surface damage.

D. Retain strippable protective covering on metal panels during installation.

1.7 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of metal panel systems that fail in materials or workmanship within specified warranty period.

1. Failures include, but are not limited to, the following:

a. Structural failures including rupturing, cracking, or puncturing.

b. Deterioration of metals and other materials beyond normal weathering.

2. Warranty Period: Two years from date of Substantial Completion.

Addendum #2 05 May, 2020

STANDING SEAM METAL ROOFING PANELS 074113.16 - 3

B. Special Warranty on Panel Finishes: Manufacturer's standard form in which manufacturer agrees to repair finish or replace metal panels that show evidence of deterioration of factory-applied finishes within specified warranty period.

1. Exposed Panel Finish: Deterioration includes, but is not limited to, the following:

a. Color fading more than 5 Delta E units when tested according to

ASTM D2244.

b. Chalking in excess of a No. 8 rating when tested according to

ASTM D4214.

c. Cracking, checking, peeling, or failure of paint to adhere to bare metal.

2. Finish Warranty Period: 10 years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 STANDING-SEAM METAL ROOF PANELS

A. Provide factory-formed metal roof panels designed to be installed by lapping and interconnecting raised side edges of adjacent panels with joint type indicated and mechanically attaching panels to supports using concealed clips in side laps. Include clips, cleats, pressure plates, and accessories required for weathertight installation.

1. Steel Panel Systems: Unless more stringent requirements are indicated, comply with ASTM E1514.

B. Vertical-Rib, Snap-Joint, Standing-Seam Metal Roof Panels: Formed with vertical ribs at panel edges and intermediate stiffening ribs symmetrically spaced between ribs;

designed for sequential installation by mechanically attaching panels to supports using concealed clips located under one side of panels, engaging opposite edge of adjacent panels, and snapping panels together.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

a. AEP Span: A Blue Scope Steel Company.

b. Architectural Metal Systems

c. Centria Architectural Systems

d. MBCI

e. PAC-CLAD; Petersen Aluminum Corporation; a Carlisle company.

2. Metallic-Coated Steel Sheet: Zinc-coated (galvanized) steel sheet complying with ASTM A653/A653M, G90 (Z275) coating designation, or aluminum-zinc alloy-coated steel sheet complying with ASTM A792/A792M, Class AZ50 (Class AZM150) coating designation; structural quality. Prepainted by the coil-coating process to comply with ASTM A755/A755M.

Addendum #2 05 May, 2020

STANDING SEAM METAL ROOFING PANELS 074113.16 - 4

a. Nominal Thickness: 0.040 inch (1.02 mm).

b. Exterior Finish: Metallic fluoropolymer.

c. Color: As selected by Architect from manufacturer's full range.

2.1 MISCELLANEOUS MATERIALS

A. Miscellaneous Metal Subframing and Furring: ASTM C645; cold-formed, metallic-coated steel sheet, ASTM A653/A653M, G90 (Z275 hot-dip galvanized) coating designation or ASTM A792/A792M, Class AZ50 (Class AZM150) coating designation unless otherwise indicated. Provide manufacturer's standard sections as required for support and alignment of metal panel system.

B. Panel Accessories: Provide components required for a complete, weathertight panel system including trim, copings, fasciae, mullions, sills, corner units, clips, flashings, sealants, gaskets, fillers, closure strips, and similar items. Match material and finish of metal panels unless otherwise indicated.

1. Closures: Provide closures at eaves and ridges, fabricated of same metal as metal panels.

2. Backing Plates: Provide metal backing plates at panel end splices, fabricated from material recommended by manufacturer.

3. Closure Strips: Closed-cell, expanded, cellular, rubber or crosslinked, polyolefin-foam or closed-cell laminated polyethylene; minimum 1-inch- (25-mm-) thick, flexible closure strips; cut or premolded to match metal panel profile. Provide closure strips where indicated or necessary to ensure weathertight construction.

C. Flashing and Trim: Provide flashing and trim formed from same material as metal panels as required to seal against weather and to provide finished appearance.

Locations include, but are not limited to, eaves, rakes, corners, bases, framed openings, ridges, fasciae, and fillers. Finish flashing and trim with same finish system as adjacent metal panels.

2.2 FINISHES

A. Protect mechanical and painted finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping.

B. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are acceptable if they are within one-half of the range of approved Samples. Noticeable variations in same piece are unacceptable. Variations in appearance of other components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast.

C. Steel Panels and Accessories:

1. Metallic Fluoropolymer: AAMA 621. Three-coat fluoropolymer finish with suspended metallic flakes containing not less than 70 percent polyvinylidene fluoride (PVDF) resin by weight in both color coat and clear topcoat. Prepare, Addendum #2 05 May, 2020

STANDING SEAM METAL ROOFING PANELS 074113.16 - 5

pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions for seacoast and severe environments.

3.1 INSTALLATION OF STANDING SEAM METAL ROOF PANELS

D. Install metal panels according to manufacturer's written instructions in orientation, sizes, and locations indicated. Install panels perpendicular to supports unless otherwise indicated. Anchor metal panels and other components of the Work securely in place, with provisions for thermal and structural movement.

1. Shim or otherwise plumb substrates receiving metal panels.

2. Flash and seal metal panels at perimeter of all openings. Fasten with self-tapping screws. Do not begin installation until air- or water-resistive barriers and flashings that will be concealed by metal panels are installed.

3. Install screw fasteners in predrilled holes.

4. Locate and space fastenings in uniform vertical and horizontal alignment.

5. Install flashing and trim as metal panel work proceeds.

6. Locate panel splices over, but not attached to, structural supports. Stagger panel splices and end laps to avoid a four-panel lap splice condition.

7. Align bottoms of metal panels and fasten with blind rivets, bolts, or self-tapping screws. Fasten flashings and trim around openings and similar elements with self-tapping screws.

8. Provide weathertight escutcheons for pipe- and conduit-penetrating panels.

E. Fasteners:

1. Steel Panels: Use stainless steel fasteners for surfaces exposed to the exterior;

use galvanized-steel fasteners for surfaces exposed to the interior.

F. Anchor Clips: Anchor metal roof panels and other components of the Work securely in place, using manufacturer's approved fasteners according to manufacturers' written instructions.

G. Metal Protection: Where dissimilar metals contact each other or corrosive substrates, protect against galvanic action as recommended in writing by metal panel manufacturer.

H. Standing-Seam Metal Roof Panel Installation: Fasten metal roof panels to supports with concealed clips at each standing-seam joint at location, spacing, and with fasteners recommended in writing by manufacturer.

1. Install clips to supports with self-tapping fasteners.

2. Install pressure plates at locations indicated in manufacturer's written installation instructions.

I. Accessory Installation: Install accessories with positive anchorage to building and weathertight mounting, and provide for thermal expansion. Coordinate installation with flashings and other components.

Addendum #2 05 May, 2020

STANDING SEAM METAL ROOFING PANELS 074113.16 - 6

1. Install components required for a complete metal panel system including trim, copings, corners, seam covers, flashings, sealants, gaskets, fillers, closure strips, and similar items. Provide types indicated by metal roof panel manufacturers; or, if not indicated, types recommended by metal roof panel manufacturer.

J. Flashing and Trim: Comply with performance requirements, manufacturer's written installation instructions, and SMACNA's "Architectural Sheet Metal Manual." Provide concealed fasteners where possible, and set units true to line and level as indicated.

Install work with laps, joints, and seams that will be permanently watertight and weather resistant.

1. Install exposed flashing and trim that is without buckling and tool marks, and that is true to line and levels indicated, with exposed edges folded back to form hems.

Install sheet metal flashing and trim to fit substrates and achieve waterproof and weather-resistant performance.

END OF SECTION 074113.16

Joint Base Elmendorf Richardson (JBER) AK ANG Project No. FXSB172535

Addendum #2 6 May, 2020

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 1

SECTION 075419

POLYVINYL-CHLORIDE (PVC) ROOFING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Adhered polyvinyl chloride (PVC) roofing system.

2. Substrate board.

3. Vapor Barrier / Air Retarder.

4. Roof insulation.

B. Section includes installation of sound-absorbing insulation strips in ribs of roof deck.

Sound-absorbing insulation strips are furnished under Section 053100 "Steel Decking."

C. Related Requirements:

1. Section 061000 "Rough Carpentry" for wood nailers, curbs, and blocking; and for wood-based, structural-use roof deck panels.

2. Section 076200 "Sheet Metal Flashing and Trim" for metal roof flashings and counterflashings.

3. Section 079200 "Joint Sealants" for joint sealants, joint fillers, and joint preparation.

1.3 DEFINITIONS

A. Roofing Terminology: Definitions in ASTM D1079 and glossary in NRCA's "The NRCA Roofing Manual: Membrane Roof Systems" apply to work of this Section.

1.4 PREINSTALLATION MEETINGS

A. Preliminary Roofing Conference: Before starting roof deck construction, conduct conference at Project site.

Addendum #2 6 May, 2020

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 2

1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency representative, roofing Installer, roofing system manufacturer's representative, deck Installer, air barrier Installer, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

2. Review methods and procedures related to roofing installation, including manufacturer's written instructions.

3. Review and finalize construction schedule, and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

4. Review deck substrate requirements for conditions and finishes, including flatness and fastening.

5. Review structural loading limitations of roof deck during and after roofing.

6. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that affects roofing system.

7. Review governing regulations and requirements for insurance and certificates if applicable.

8. Review temporary protection requirements for roofing system during and after installation.

9. Review roof observation and repair procedures after roofing installation.

B. Preinstallation Roofing Conference: Conduct conference at Project site.

1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency representative, roofing Installer, roofing system manufacturer's representative, deck Installer, air barrier Installer, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

2. Review methods and procedures related to roofing installation, including manufacturer's written instructions.

3. Review and finalize construction schedule, and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

4. Examine deck substrate conditions and finishes for compliance with requirements, including flatness and fastening.

5. Review structural loading limitations of roof deck during and after roofing.

6. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that affects roofing system.

7. Review governing regulations and requirements for insurance and certificates if applicable.

8. Review temporary protection requirements for roofing system during and after installation.

9. Review roof observation and repair procedures after roofing installation.

1.5 ACTION SUBMITTALS

A. Product Data: For each type of product.

Addendum #2 6 May, 2020

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 3

1. For insulation and roof system component fasteners, include copy of FM Approvals' RoofNav listing.

B. Shop Drawings: Include roof plans, sections, details, and attachments to other work, including the following:

1. Layout and thickness of insulation.

2. Base flashings and membrane terminations.

3. Flashing details at penetrations.

4. Tapered insulation thickness and slopes.

5. Roof plan showing orientation of steel roof deck and orientation of roof membrane, fastening spacings, and patterns for mechanically fastened roofing system.

6. Insulation fastening patterns for corner, perimeter, and field-of-roof locations.

7. Tie-in with air barrier.

C. Samples for Verification: For the following products:

1. Roof membrane and flashing, of color required.

D. Wind Uplift Resistance Submittal: For roofing system, indicating compliance with wind uplift performance requirements.

1.6 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer and manufacturer.

B. Manufacturer Certificates:

1. Performance Requirement Certificate: Signed by roof membrane manufacturer, certifying that roofing system complies with requirements specified in "Performance Requirements" Article.

a. Submit evidence of compliance with performance requirements.

2. Special Warranty Certificate: Signed by roof membrane manufacturer, certifying that all materials supplied under this Section are acceptable for special warranty.

C. Product Test Reports: For roof membrane and insulation, tests performed by independent qualified testing agency indicating compliance with specified requirements.

D. Evaluation Reports: For components of roofing system, from ICC-ES.

E. Field quality-control reports.

F. Sample Warranties: For manufacturer's special warranties.

Addendum #2 6 May, 2020

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 4

1.7 CLOSEOUT SUBMITTALS

A. Maintenance Data: For roofing system to include in maintenance manuals.

B. Certified statement from existing roof membrane manufacturer stating that existing roof warranty has not been affected by Work performed under this Section.

1.8 QUALITY ASSURANCE

A. Manufacturer Qualifications: A qualified manufacturer that is listed in FM Approvals' RoofNav for roofing system identical to that used for this Project.

B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer.

Protect stored liquid material from direct sunlight.

1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation.

D. Handle and store roofing materials, and place equipment in a manner to avoid permanent deflection of deck.

1.10 FIELD CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

Addendum #2 6 May, 2020

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 5

1.11 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within specified warranty period.

1. Special warranty includes roof membrane, base flashings, roof insulation, fasteners, substrate board, and other components of roofing system.

2. Manufacturer’s System Warranty (only products purchased from the membrane manufacturer are covered under System Warranty): Upon successful completion of the work to the Roofing Manufacturer's and Owner’s satisfaction, and receipt of final payment, the twenty (20) Year System Warranty shall be issued. The System Warranty shall provide for the roof membrane, all accessories that comprise a roof system, and contractor labor. The Warranty shall be Non- Prorated provide for No Dollar Limit (NDL), and shall not exclude ponding water and no time limited shall be assigned for any such ponding water during the warranty period. Warranty shall not exclude foot traffic or storage of any kind upon the membrane surface. Warranty shall further not obligate the owner to a maintenance schedule or requirements as a condition of the warranty. Warranty shall provide for 90 mph.

3. Warranty Period: 20 years from date of Substantial Completion.

B. Special Project Warranty: Submit roofing Installer's warranty, on warranty form at end of this Section, signed by Installer, covering the Work of this Section, including all components of roofing system such as roof membrane, base flashing, roof insulation, fasteners, substrate boards, vapor barrier/air retarders, and for the following warranty period:

1. Warranty Period: Two years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. General Performance: Installed roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction.

Roof system and flashings shall remain watertight.

1. Accelerated Weathering: Roof membrane shall withstand 2000 hours of exposure when tested according to ASTM G152, ASTM G154, or ASTM G155.

2. Impact Resistance: Roof membrane shall resist impact damage when tested according to ASTM D3746, ASTM D4272/D4272M, or the "Resistance to Foot Traffic Test" in FM Approvals 4470.

Addendum #2 6 May, 2020

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 6

B. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required, as demonstrated by roof membrane manufacturer based on testing and field experience.

C. Wind Uplift Resistance: Design roofing system to resist the following wind uplift pressures when tested according to FM Approvals 4474, UL 580, or UL 1897:

1. Zone 1 (Roof Area Field): 35 lbf./sq.ft.

2. Zone 2 (Roof Area Perimeter): 60 lbf./sq/ft.

a. Location: From roof edge to 5 feet inside roof edge.

3. Zone 3 (Roof Area Corners): 60 lbf./sq.ft.

a. Location: 5 feet in each direction from building corner.

D. FM Approvals' RoofNav Listing: Roof membrane, base flashings, and component materials shall comply with requirements in FM Approvals 4450 or FM Approvals 4470 as part of a roofing system, and shall be listed in FM Approvals' RoofNav for Class 1 or noncombustible construction, as applicable. Identify materials with FM Approvals Certification markings.

1. Fire/Windstorm Classification: Class 1A-90.

2. Hail-Resistance Rating: FM Global Property Loss Prevention Data Sheet 1-34

MH.

E. SPRI's Directory of Roof Assemblies Listing: Roof membrane, base flashings, and component materials shall comply with requirements in FM Approvals 4450 or FM Approvals 4470 as part of a roofing system, and shall be listed in SPRI's Directory of Roof Assemblies for roof assembly identical for that specified for this Project.

1. Wind Uplift Load Capacity: 90 psf.

F. ENERGY STAR Listing: Roofing system shall be listed on the DOE's ENERGY STAR "Roof Products Qualified Product List" for low-slope roof products.

G. Energy Performance: Roofing system shall have an initial solar reflectance of not less than 0.70 and an emissivity of not less than 0.75 when tested according to CRRC-1.

H. Exterior Fire-Test Exposure: ASTM E108 or UL 790, Class A; for application and roof slopes indicated; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

I. Fire-Resistance Ratings: Comply with fire-resistance-rated assembly designs indicated. Identify products with appropriate markings of applicable testing agency.

2.2 POLYVINYL CHLORIDE (PVC) ROOFING

A. PVC Sheet: ASTM D4434/D4434M, Type III, fabric reinforced.

Addendum #2 6 May, 2020

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 7

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Carlisle SynTec Incorporated

b. Johns Manville; A Berkshire Hathaway company

c. Sika Sarnafil

2. Thickness: 60 mils (1.5 mm).

3. Exposed Face Color: White.

B. Source Limitations: Obtain components for roofing system from roof membrane manufacturer or manufacturers approved by roof membrane manufacturer.

2.3 AUXILIARY ROOFING MATERIALS

A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with other roofing components.

1. Adhesives and Sealants: Comply with VOC limits of authorities having jurisdiction.

B. Sheet Flashing: Manufacturer's standard sheet flashing of same material, type, reinforcement, thickness, and color as PVC sheet.

C. Prefabricated Pipe Flashings: As recommended by roof membrane manufacturer.

D. Roof Vents: As recommended by roof membrane manufacturer.

1. Size: Not less than 4-inch (100-mm) diameter.

E. Bonding Adhesive: Manufacturer's standard, water based.

F. Slip Sheet: Manufacturer's standard, of thickness required for application.

G. Metal Termination Bars: Manufacturer's standard, predrilled stainless steel or aluminum bars, approximately 1 by 1/8 inch (25 by 3 mm) thick; with anchors.

H. Metal Battens: Manufacturer's standard, aluminum-zinc-alloy-coated or zinc-coated steel sheet, approximately 1 inch wide by 0.05 inch thick (25 mm wide by 1.3 mm thick), prepunched.

I. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening roofing components to substrate, and acceptable to roofing system…