W912QR21B0015-0002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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.

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Solicitation W912QR21B0015 for Roof Replacement at Taylorsville Lake Project Office, Taylorsville, Ky is hereby amended as follows:

a. The following Specif ication Sections have been replaced in their entirety:

07 00 00

07 41 10

b. The due date is not extended as a result of this amendment.

c. All Amendments must be acknowledged.

d. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

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

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

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

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912QR21B0015

X 9B. DATED (SEE ITEM 11)

27-Aug-2021

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

Offer 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 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram 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 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.

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.

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

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, 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)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO.

5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

22-Sep-2021

CODE

U. S. ARMY ENGINEER DISTRICT, LOUISVILLE

600 DR. MARTIN LUTHER KING, JR. PLACE

ROOM 821

LOUISVILLE KY 40202-2239

W912QR 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

X 1

W912QR21B0015-0002

Taylorsville Lake Project Office Roof Replacement P2: 128629 Taylorsville, Ky 22 September 2021

SECTION 07 00 00

Amendment 0002

SECTION 07 00 00

REROOFING PREPARATION

Amendment 0002

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Removals.

2. Preparations.

3. Deck repairs.

PART 2 - PRODUCTS

2.1 WOOD DECK REPAIR MATERIALS

A. Wood Deck Fasteners: Ring shank common nails, length to penetrate 2 inches into underlying joist.

B. Sheet Metal for Wood Decks: 24 gauge galvanized steel.

2.2 NOT USED

2.3 MISCELLANEOUS MATERIALS

A. Steel Plate: For covering openings, 1/8 inch thick, single sheet sized to extend 6 inches beyond opening in all directions.

PART 3 - EXECUTION

3.1 REMOVALS

A. Remove all existing roofing, membrane, and metal flashings and discard.

B. Remove or correct any obstruction which might interfere with the proper application of new materials.

C. Lift or remove all existing equipment so that existing flashings can be totally removed and new flashings installed.

D. Remove all existing gutters and downspouts and discard.

E. Remove all existing expansion joint covers and discard.

F. Remove all existing metal copings and discard. Carefully relocate all electrical, co-axial, telephone, fiber optic, intercom and miscellaneous

Amendment 0002 wires, cables, etc. as required to accomplish work specified herein.

Accomplish such relocation without interrupting the service provided by these lines except as specifically authorized by the COR in writing.

Become familiar with each line and the level of precaution necessary to relocate them or work around them. Upon completion of roofing work, relocate lines to their original positions and secure them as originally secured unless indicated otherwise in these specifications or on the project drawings.

3.2 PREPARATION, GENERAL

A. Prior to commencement of any work, inspect and thoroughly water test all existing roof drains for free flow operation with Taylorsville Project Office maintenance personnel present. Report drain restrictions to Taylorsville Project Office. Taylorsville Project Office's maintenance personnel shall perform repairs to remove any restrictions found. Should drains become clogged at any time after the start of work, correct the condition at no additional expense to the Taylorsville Project Office.

B. Prior to the installation of any new roofing, flashings, and metal flashings, clean surfaces of all dust, dirt and other foreign matter.

C. Over all openings, install new steel plate. Secure to deck using galvanized fasteners spaced not over 6 inches on center at all edges.

D. Extend all existing vents through the roof to the height required by the local plumbing code but not less than 8 inches above finished roof level.

3.3 DECK REPAIR

A. Inspect the deck carefully. If there are plywood areas which require repair or replacement, notify the COR. Do not proceed with repair or replacement until directed by the COR.

3.4 WOOD DECK REPAIR

A. Renail any loose or warped wood deck units using specified fasteners spacing nails to ensure securement.

B. Remove all existing wet, damaged or deteriorated wood deck units and discard. Replace any such discarded material with new material the same size and thickness as the existing.

C. Provide wood deck units long enough to be continuous over a minimum of three roof supports.

D. Cover all cracks in wood decking ¼ inch or more in width, end joints ½ inch or more in width, and all know holes with sheet metal nailed in place with specified fasteners at 4 inches on center staggered along all edges of metal.

Amendment 0002

3.5 NOT USED

3.6 PLYWOOD DECK REPAIR

A. Remove all existing damaged or deteriorated plywood deck units and discard. Install new 5/8” plywood to match size of removed units.

3.7 COUNTERFLASHING PREPARATION

A. Neatly bend existing counterflashing up at walls as required to completely remove existing base flashings and to install new base flashings. After installation of new base flashings, neatly bend counterflashing back in place using sufficient care to prevent deformation to the finished counterflashing.

B. Neatly bend existing counterflashing receiver up at walls as required to completely remove existing base flashings and counterflashings and to install new base flashings and counterflashings. After installation of new base flashings and counterflashings, neatly bend counterflashing receiver back in place using sufficient care to prevent deformation to the finished counterflashing.

C. Cut new raggle in walls above roof level for installation of new metal counterflashings. Provide a minimum height of 8 inches above finished roof level.

D. Saw raggle to a minimum depth of 1-1/2 inches in a straight line to allow proper installation of new counterflashings. Utilize all procedures necessary including, but not limited to, saw guides to ensure straight, clean raggles.

Amendment 0002 *******************************************************

3.8 NOT USED

******************************************************* Amendment 0002

3.9 PAINTING OF ROOF-MOUNTED EQUIPMENT

A. Where rusted and/or galvanized steel equipment is present on roof, remove loose rust by wire brushing and apply oil based, low VOC primer and paint made for outdoor metal applications. Provide one coat of primer and two coats of paint in a color approved by COR.

3.10 NOT USED

-- End of Section --

SECTION 07 41 10

Amendment 0002

METAL ROOF AND WALL PANELS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and

Supplementary Conditions and other Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Prefabricated metal roofing panels.

B. NOT USED

1.3 PERFORMANCE REQUIREMENTS

A. Complete roof covering assembly must be rated Class 1A-75 in accordance with FM APP GUIDE and ASTM D 4073. Non-rated systems must not be installed. Base all Wind uplift calculations on a design wind speed of 111 mph in accordance with ASCE/SEI 7-16, ASTM D 4073, or applicable building code requirements. Provide Wind Load Calculations and wind pressures table as a Construction Submittal for review.

B. Static Air Infiltration: Completed roof system shall have a maximum of

.06 cfm/sf with

6.24 kPa air pressure differential as per ASTM E283.

C. Water Infiltration: No evidence of water penetration at an inward static air pressure differential of not less than 6.24 psf (43 kPa) and not more than 12.0 psf (83 kPa) as per ASTM E331.

D. Structural Performance: Provide metal roof panel assemblies capable of withstanding the effects of gravity loads and the following loads and stresses within limits and under conditions indicated, based on testing according to ASTM E 1592 and ASTM E 330.

E. Thermal Movements: Provide metal roof panel assemblies that allow for thermal movements resulting from the following maximum change (range) in ambient and surface temperatures by preventing buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

F. UL Listing: Provide metal roof panels that meet the requirements of a UL Class Aassembly.

1.4 REFERENCES

A. American Society for Testing and Materials (ASTM):

1. ASTM A653 – Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc- Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.

2. ASTM B209 – Specification for Aluminum and Aluminum-Alloy Sheet and

Plate.

3. ASTM E283 – Test Method for Determining the Rate of Air Leakage through Exterior Windows, Curtain Walls and Doors Under Specified Pressure Differences Across the Specimen.

4. ASTM E331 – Test Method for Water Penetration of Exterior Windows, Curtain Walls and Doors by Uniform Static Air Pressure Difference.

B. Underwriters Laboratories (UL):

1. UL 263 – Fire Tests of Building Construction and Materials.

2. UL 580 – Test for Wind-Uplift Resistance of Roof Assemblies

3. UL 790 – Test for Fire Resistance of Roof Covering Materials.

1.5 SUBMITTALS

A. Government approval is required for submittals with a “G” designation.

Submittals not having a “G” designation are for contractor quality control, for information only, etc. Submittals with “G” designation are included throughout the specification.

B. (G) Materials List: Give written notification of the brand name and manufacturer of each material proposed for use and include a statement that all proposed materials meet the specifications requirements. Obtain approval prior to placing orders.

C. (G) Submittal of catalog cut sheets, etc. in lieu of the materials list required above is not acceptable. Do not submit cut sheets unless specifically requested.

D. (G) Shop Drawings: Provide shop drawings sealed by a licensed

Professional Engineer. Show installation/flashing details, panel clip and/or purlin spacing, etc.

E. (G) Uplift Calculations: Provide uplift and fastener calculations sealed by a licensed Professional Engineer. Uplift and panel securement shall be based on pullout tests performed at the site utilizing the fastener proposed for use. Uplift criteria shall include securement for field, perimeter and corner zones in Accordance with ASCE-7.

F. (G) Manufacturer’s standard prefinished color chart.

G. Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in "Performance Requirements" Article.

H. (G) Manufacturer’s Instructions: Manufacturer’s Installation

Instructions

I. Manufacturer Certificates: Original document signed by a responsible officer of the manufacturing firm, notarized, on manufacturer’s standard

Amendment 0002 letterhead, certifying materials furnished for project comply with the referenced standard. Certificate shall specifically reference the project and applicable compliance standard.

J. NOT USED

K. Warranties: Special warranties specified in this Section.

1.6 DELIVERY, STORAGE AND HANDLING

A. Comply with manufacturer’s ordering instructions and lead time requirements to avoid construction delays.

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

C. Deliver materials in manufacturer’s original, unopened, undamaged containers with identification labels intact. Identify fabricated components with UL 90 label where appropriate.

D. Unload, store, and erect metal roof panels in a manner to prevent bending, warping, twisting, and surface damage. Elevate one end of each skid to allow for moisture run- off.

E. Stack metal roof panels on platforms or pallets above grade, covered with suitable weathertight and ventilated covering. Store metal roof panels to ensure dryness. Do not store metal roof panels in contact with other materials that might cause staining, denting, or other surface damage. Materials which are not stored properly are subject to removal from the site.

F. Protect strippable protective covering on metal roof panels from exposure to direct sunlight, extreme heat and high humidity.

G. Restrict on-site storage to a minimum for work in progress.

1.7 WARRANTIES

A. Warranties and procedures shall adhere to the requirements in Section 00 80 00.00 06 Paragraph 1.15.

B. Special Weathertightness NDL Warranty: Manufacturer's issued form in which manufacturer agrees to repair or replace standing-seam metal roof panel assemblies that fail to remain weathertight, including leaks, within specified warranty period.

C. Warranty Period: 2 0 years from date of Government Acceptance.

1. Panel manufacturer must manufacture the panel used on this project and manufacturer is required to have been in business for at least twenty (20) years.

2. Warranty must be issued by the panel manufacturer and not a third party organization.

3. Contractor personnel are required to receive annual training from panel manufacturer.

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

E. Fluoropolymer Finish: Deterioration includes, but is not limited to, the following:

F. Color fading more than 5 Hunter units when tested according to ASTM D 2244.

G. Chalking in excess of a No. 8 rating when tested according to ASTM D

4214.

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

H. Finish Warranty Period: 20 years from date of Government Acceptance.

I. Installer’s Warranty: Installer’s warranty, on form at end of Section 01 11 00.00 06, signed by roofing Installer, properly executed and printed on Installer’s letterhead form.

J. Installer's Warranty Period: Two years from date of Government

Acceptance.

1.8 QUALITY ASSURANCE

A. Follow recommendations of Sheet Metal and Air Conditioning Contractors

National Association Architectural Sheet Metal Manual (Sixth Edition, 2003) for fabricating in-shop and on-site, and for installation, unless otherwise specified herein or on Drawings.

B. Follow published instructions of the product manufacturer for installation of extruded or proprietary metal products, unless otherwise specified herein.

C. The as-built roof covering shall be rated an Underwriters Laboratories

(UL) Class A roof covering. Additionally, the as-built roof assembly shall carry an UL wind uplift rating of Class 90. Contractor must submit a manufacturer’s certificate stating compliance with the referenced standards.

D. The same manufacturer shall supply all materials used in systems covered by a manufacturer’s guarantee, unless the manufacturer issuing the guarantee waives this requirement in writing. Where a generic product or a general manufacturer’s product is specified and more than one such product is offered by the manufacturer, it is understood that only the manufacturer’s premium materials are approved for this project.

PART 2 - PRODUCTS

2.1 GENERAL

A. Listed in this section are specifications for materials required generally for use in accomplishing the work specified. Materials not listed may also be required.

B. Except as specifically noted herein, all reference standards included herein are to be presumed to be the latest published editions of such standards available as of the issue date of these specifications.

C. Brand or manufacturer names are used as standards of quality where no other appropriate reference is available. Submit substitution requests under requirements listed in other Sections.

D. Where a generic product or a general manufacturer’s product is specified and more than one such product is offered by the manufacturer, provide the manufacturer’s premium materials.

E. LEED/EPA Requirements

1. Roofing shall qualify for Leadership in Energy and Environmental

Design (LEED) certification points as defined by the United States Green Building Council (USGBC).

2. Roofing shall comply with the requirements of the U.S. EPA Energy Star® program and meet the reflectance and emittance requirements of Title 24 Part 6 for the state of California. Contractor shall submit CRRC Product ID number.

3. Roofing for new construction shall comply with LEED New Construction requirements, including minimum Solar Reflectance Index (SRI) as calculated according to ASTM E 1980.

F. Minimum Installed Slope: Match existing slope.

2.2 MANUFACTURERS

A. The project design is based on using materials supplied by Petersen Aluminum Corporation. Products supplied by Petersen Aluminum Corporation and Merchant & Evans, Inc. are approved. Such approval does not relieve the contractor or manufacturer from the requirement to supply materials which meet all other requirements of these specifications. Alternative manufacturers will be considered provided they also meet the requirements of these specifications, including warranty/guarantee requirements.

B. For purposes of these documents, the roof system manufacturer is defined as the manufacturer of the primary roof membrane. The roof system is intended to encompass, but is not necessarily limited to, all components above the deck including underlayment and/or vapor retarder components, metal panels, membrane and metal flashings and any proprietary flashing/components of the system manufacturer. Subject to compliance with the material specifications of these documents, all materials are to be supplied by the same manufacturer.

Amendment 0002

C. All materials used in systems to be covered by a Manufacturer’s Guarantee must be supplied by the same manufacturer, unless the manufacturer issuing the guarantee waives this requirement in writing.

D. Subject to the requirements specified herein, recommended standing seam metal roofing product manufacturers include (but are not limited to):

Petersen Aluminum Corporation Merchant & Evans, Inc. 1005 Tonne Road 308 Connecticut Drive Elk Grove Village, IL 60007 Burlington, NJ 08016 Phone: 800-PAC-CLAD Phone: 800-257-6215 Fax: 800-722-7150 Fax: 609-387-4838 Website: www.pac-clad.com Website: www.ziprib.com

E. Metal panel manufacturer shall have been in business at least twenty

(20) years and shall have at least twenty (20) years in the manufacture of the metal roof panel. Manufacturer shall manufacture its own metal panel and shall not use metal panels supplied by third party sources.

Manufacturer shall demonstrate past experience with examples of products of similar type and exposure.

2.3 PANEL MATERIALS

A. Aluminum Panels and Trim: Factory formed and tension leveled with factory-applied sealant bead and polyvinylidene fluoride (PVDF) finish, 2” deep 180˚ double lock mechanically seamed Standing Seam 0.032-gauge aluminum roof with a polyvinylidene fluoride finish (PVDF)concealed fastener system that allows for thermal expansion/contraction, 2 fasteners per clip:

1. Seam Height: 2” minimum seam height.

2. Material: 0.032” aluminum panel.

3. Panel Dimension: 12” on center.

4. Eave Notching: Factory produced eave notching for trimmed eave panels.

5. Texture: Smooth texture.

6. Flashing and Trim: Aluminum: .040”

7. Panel Clips: Stainless steel, non-penetrating high performance clips.

2.4 NOT USED

2.5 AUXILIARY COMPONENTS

A. Hold-Down Clip: Continuous aluminum or stainless steel hold-down clip with prepunched holes as provided by manufacturer.

B. Touch-up Paint: Use air-dry paint for repairs to metal panels that is http://www.pac-clad.com/ http://www.ziprib.com/

Amendment 0002 approved and furnished by metal roof panel manufacturer. Provide certification that paint was supplied by manufacturer.

C. Bearing Plates: Supplied by manufacturer.

2.6 MATERIALS

A. Aluminum Sheet: ASTM B209, aluminum and aluminum alloy 3105 with H14 temper in accordance with manufacturer’s standard to suit forming operations and finish specified.

1. Thickness: .040”.

2.7 FINISHES:

A. Factory Applied Finish:

1. Topside: Full-strength fluoropolymer (70% Kynar® 500 or Hylar®

5000 resin) system of 1.0 mil total dry film thickness.

2. Underside: Wash coat of 0.3 – 0.4 mil dry film thickness.

3. Protective Film: Strippable vinyl film applied during panel fabrication and finishing.

2.8 UNDERLAYMENT MATERIALS

A. Felt: ASTM D 226, Type II, No. 30 asphalt-saturated organic felts, nonperforated.

B. Ice-Dam Protection Membrane, Polyethylene Faced: ASTM D 1970, minimum of 40 mil thick sheet; slip-resisting, polyethylene-film-reinforced top surface laminated to SBS-modified asphalt adhesive, with release paper backing; cold-applied.

2.9 INSULATION / BOARD GOODS

A. NOT USED

C. NOT USED

D. NOT USED

E. NOT USED

F. NOT USED

G. NOT USED

H. NOT USED

I. Prefabricated Curbs and Equipment Supports: Prefabricated curbs and equipment supports shall be of structural quality, hot-dipped galvanized or galvanized sheet steel, factory primed and prepared for painting with mitered and welded joints. Integral base plates and water diverter crickets shall be provided. Minimum height of curb shall be 8 inches

Amendment 0002 above finished roof. Curbs shall be constructed to match roof slope and to provide a level top surface for mounting of equipment. Curb flange shall be constructed to match configuration of roof panels. Curb size shall be coordinated, prior to curb fabrication, with the mechanical equipment to be supported. Strength requirements for equipment supports shall be coordinated to include all anticipated loads. Flashings shall not be rigidly attached to underlying structure.

2.10 AUXILIARY MATERIALS

A. Snow Retention System: Manufactured specifically for standing seam metal roofs, equipped with roof clamps, cross members, snow/ice clips, stainless steel fasteners and hardware, etc. as necessary for a complete installation. Cross member shall have receptacle for color strip. S-5 as manufactured by Petersen Aluminum Corporation, S- 5-2 ColorGard as manufactured by Merchant & Evans, Inc., or approved equal.

PART 3 - EXECUTION

3.1 GENERAL INSTALLATION

A. Restrict on-site storage to minimum for work in progress. Protect all stored metal from exposure to weather and physical damage.

B. Inspect all surfaces to which metal is to be applied. Do not install metal unless surfaces are even, sound, clean, dry and free from defects that might affect the application.

C. Follow recommendations of Sheet Metal and Air Conditioning Contractors

National Association Architectural Sheet Metal Manual Sixth Edition, 2003 for fabricating in- shop and on-site, and for installation, unless otherwise specified herein or on Drawings.

D. The standing seam metal roof system shall not have exposed fasteners through the metal roof system.

E. Use corrosion resistant nails, screws, bolts, cleats or other fasteners of the same material or of material chemically compatible with the contacted metal. Use stainless steel fasteners for aluminum and stainless steel sheet metal.

F. Do not place dissimilar metals in direct contact nor in positions where water sheds across both metals. Where aluminum is in contact with masonry or concrete, coat the contacting surface with bituminous paint.

G. Install metal to be water and weathertight with lines, arises and angles sharp and true and with plane surfaces free of waves or buckles. All raw edges of exposed or finish sheet metal shall be hemmed.

H. Cleats are to be a minimum of one gauge heavier than fascia metal. Secure cleats to substrate with fasteners specifically manufactured for the purpose at spacings of 6 inches on center. Fasteners are to be manufactured of metal chemically compatible with the contacted metal.

Fasteners to be used in wood substrates are to be ring shank. Fasteners are to be located as close to hem of cleat as practical but no more than

Amendment 0002

2 inches from hem unless specifically indicated otherwise herein or on drawings.

I. Solder metal, where required, using standard industry techniques in accordance with the requirements of the metal manufacturer and the SMACNA Architectural Sheet Metal Manual for the types of metal to be soldered.

Joints shall be thoroughly sweated to ensure full penetration of solder in the joint and to ensure a secure connection. Riveted joints shall be fully soldered to eliminate rivet holes or potential for corrosion.

J. Install shop-formed eave fascia, edge drip flashing, counterflashing, and coping in 10 foot lengths maximum and with minimum number of pieces in each straight run.

K. Prime all metal surfaces to receive hot asphalt or bituminous cements.

Allow primer to dry thoroughly before application of asphalts or cements.

L. Shop form all metal shapes, which are to be formed of prefinished metal, with protective plastic film in place. Do not remove plastic film until just prior to (or, if possible, after) installation.

M. At all corners, shop form corner pieces of metal flashing and coping cap with 18 inch legs (joints no more than 18 inches from corner). Solder or weld joint of corner piece.

3.2 UNDERLAYMENT INSTALLATION

A. Clean deck surfaces of all dirt, dust and other foreign matter.

B. Prior to installing new underlayment, install new gutter cleat or edge metal. Underlayment is to be applied over edge metal components along eaves.

C. Install ice-dam protection membrane underlayment, wrinkle-free, on roof deck, valleys, eaves, ridges, hips, and plumbing vents. Lap in direction to shed water. Lap sides 4 inches and ends 6 inches.

D. Prime concrete and masonry surfaces to receive ice-dam protection membrane underlayment.

E. Eaves: Extend ice-dam protection membrane from edges of eaves 36 inches beyond interior face of exterior wall.

F. Rakes: Extend ice-dam protection membrane from edges of rake 36 inches beyond interior face of exterior wall.

G. Valleys: Extend ice-dam protection membrane from lowest to highest point 18 inches on each side.

H. Hips: Extend ice-dam protection membrane 18 inches on each side.

I. Ridges: Extend ice-dam protection membrane 18 inches on each side.

J. Roof Slope Transitions: Extend ice-dam protection membrane 18 inches on each roof slope.

K. Double-Layer Felt Underlayment: Install double layer of felt

Amendment 0002 underlayment on the roof deck perpendicular to roof slope in parallel courses. Install a 19-inch wide starter course at eaves and completely cover with full-width second course. Install succeeding courses lapping previous courses 19 inches in shingle fashion. Lap ends a minimum of 6 inches.

L. Fasten with specified fasteners along laps at 6 inches on center. Do not over-nail underlayment.

M. Lap felt underlayment a minimum of 4 inches over self-adhering underlayment.

N. Extend underlayment up not less than 4 inches at sidewalls, chimneys, curbs and other roof projections.

3.3 GUTTER CLEAT INSTALLATION

A. Install new gutter cleat as specified herein. Refer to the plans and details.

B. Fabricate from 0.040 aluminum.

C. Fabricate from 24 ga. stainless steel.

D. Flange width shall be at least 6-inches.

E. Continuously engage lower edge with gutter.

F. Lap sections a minimum of 6-inches and seal with three (3) continuous beads of sealant. Notch and hem lap for proper seating.

G. Secure flange of eave closure to substrate with fasteners spaced and staggered 6 inches on center.

3.4 PANEL INSTALLATION

A. Install panels in strict accordance with manufacturer’s instructions and approved shop drawings.

B. Secure panels to substrate with concealed panel clips in each seam.

Secure clips with 2 fasteners per clip.

C. Close seams with mechanized equipment approved by the manufacturer and specifically designed for closing the metal panel standing seams.

Calibrate mechanical seamer daily.

D. When installed over rigid insulation or as otherwise required by manufacturer, use 18 gauge galvanized steel bearing plates between panel clips and underlayment. Bearing plates are to be supplied by manufacturer.

E. Fix panels at ridge with non-moving clips.

F. Fabricate panels in continuous full lengths from eave to ridge with no end laps.

G. At top and bottom of panel, the clip shall be positioned not more than

6 inches from the end of the panel.

H. Clip spacing shall be determined from uplift calculations for field, perimeters and corners.

I. Clip spacing shall not exceed 2 feet on center for attachment to substrate.

J. Provide pan fold at end closures and terminations.

3.5 METAL WALL PANEL INSTALLATION

A. Furnish and install new metal panels in accordance with manufacturer’s latest printed installation instructions. Printed installation instructions shall be submitted and approved according to specification Section 01330.

B. Secure panels along top with a minimum four (4) fasteners per panel.

Secure along bottom end using manufacturer supplied panel clips, using a minimum of two (2) fasteners per clip.

3.6 RIDGE CAP INSTALLATION

A. Furnish and install new ridge cap in accordance with manufacturer’s printed instructions. Ridge cap shall be designed to accommodate panel expansion and longitudinal expansion along ridge cap. Submit manufacturer’s installation instructions prior to installation.

3.7 SNOW RETENTION SYSTEM INSTALLATION

A. Clean Surface:

1. Verify that panel seam area is reasonably clean and free of visible dirt and foreign matter at the clamp locations prior to installing clamps.

B. Seaming Complete:

1. Verify that any required machine seaming is complete prior to installation.

C. Panel Attachment:

1. Verify that panels are adequately attached and supported to the building structure.

D. Free Drainage:

1. Verify that completed assembly installation will not in any way impede proper drainage of roof panels.

E. Layout:

1. Carefully lay out desired assembly locations true-to-line prior to installing clamps or brackets.

F. Clamp Installation:

1. Assemble set screws to clamp and clamp to seam following all manufacturer’s printed instructions. Both set screws are to be at the same side of clamp. When application relies upon tested load-to-failure values, manufacturer’s minimum recommended set screw tension shall be randomly verified using calibrated torque wrench per manufacturer’s instructions.

G. System Installation:

1. Install snow retention assemblies straight and true-to-line. Secure all color strip material per manufacturer’s instructions. Join adjacent sections with splice pieces provided. Do not cantilever crossmember more than 6” past the last clamp in an assembly.

H. Cleaning:

1. Clean roof of any residual debris resulting from installation.

3.8 SOFFIT PANEL INSTALLATION

A. Furnish and install new vented soffit panels as specified herein.

B. Refer to sheet metal schedule for gauge and metal type.

C. Install panels plumb, level and straight with ribs parallel.

D. Allow for thermal movement.

E. Fasten at spacings indicated on shop drawings.

F. Apply sealant tape or caulking at panel joints.

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