W912DS-15-B-0016-0003.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

The purpose of this amendment is to:

1) Incorporate Revised Draw ings & Specifications and

2) Incorporate Q&A's (FOR INFORMATIONAL PURPOSES ONLY)

The Bid Due Date remains the same on Thursday, 24 September 2015 at 2PM EST.

NOTE: Bidders must acknow ledge receipt of this amendment by the date specified in the bid (or as amended) by one of the follow ing methods: In the space provided on the SF 1442, by separate letter, or by signing block 15 below . FAILURE TO ACKNOWLEDGE AMENDMENT BY THE DATE AND TIME SPECIFIED MAY RESULT IN REJECTION OF YOUR BID IN ACCORDANCE WITH THE LATE BID, LATE

MODIFICATION OF BID, OR LATE WITHDRAWAL OF BID (FAR 14.304).

1. CONTRACT ID CODE PAGE OF PAGES

J 1 5

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

16C. DATE SIGNED

BY 18-Sep-2015

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 W912DS-15-B-0016

X 9B. DATED (SEE ITEM 11)

25-Aug-2015

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

18-Sep-2015

CODE

US ARMY CORPS OF ENGINEERS, NEW YORK

26 FEDERAL PLAZA, RM 1843

NEW YORK NY 10278-0090

W912DS 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912DS-15-B-0016

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0003

TO OFFORERS

The following changes shall be made to the drawings and specifications.

DRAWINGS

1. The following DRAWINGS have been REVISED but NOT REISSUED:

- Drawing S-101 – add note 6 as follows: “Contractor shall remove the existing trench drain in the covered storage area.”

following DRAWINGS have been REVISED but NOT REISSUED:

- Drawing S-101 – add note 7 as follows: “Contractor shall replace broken and damaged CMU.

Please coordinate with COR in the field.”

2. The following DRAWINGS have been REVISED and REISSUED:

- None

3. The following DRAWINGS have been ADDED:

None

SPECIFICATIONS

1. The following SPECIFICATION SECTIONS have been ADDED and are provided in their entirety herein:

Appendix B – Monitoring Wells

2. The following SPECIFICATIONS SECTIONS have been DELETED in their entirety:

None

3. The following SPECIFICATIONS SECTIONS have been REVISED and REISSUED:

None

4. The following SPECIFICATIONS have been REVISED but NOT REISSUED:

- Section 07 41 13.16 – Standing-seam Metal Roof Panels – add paragraph 2.2(B) as follows:

“General:

1. The products, quality, and performance criteria specified shall be regarded as the minimum standard of quality required for the project.

2. Basis of Design: R-MER SPAN System manufactured by the Garland Company, Cleveland, OH. Contractor may provide other approved equal systems.

Materials:

1. Panel Material: 24 ga. Galvanized steel, G90, smooth as per ASTM A653-96.

2. Flashing and flat stock material: Fabricate in profiles indicated on drawings of same material, thickness, and finish as roof system, unless indicated otherwise.

Finish on Surfaces.

1. Exposed surfaces for coated panels:

a. Two coat coil applied, baked-on full-strength (70% resin) fluorocarbon coating system (polyvinylidene fluoride, PVF2), applied by manufacturer's approved applicator.

b. Coating system shall provide nominal 1.0 mil dry film thickness, consisting of primer and color coat.

c. Color shall be ‘Federal Bronze 20040’.

2. Unexposed surfaces for coated panels shall be baked-on polyester coating with .20 - .30 dry film thickness (TDF).

3. Exposed and unexposed surfaces for uncoated panels shall be as shipped from the mill.

Characteristics.

1. Provide the same panel profile from a single manufacturer for all standing seam roof areas.

2 Provide standing seam panels incorporating mechanically interlocked, concealed anchor clips allowing unlimited thermal movement, and of configuration which will prevent entrance or passage of water.

a. Panel/Cap configuration must have a total of four (4) layers of steel surrounding anchor clip for prevention of water infiltration and increased system strength designed to limit potential for panel blow-off.

b. Profile of panel shall have mesa's every two (2) inches on center continuous throughout panel which are a minimum of one and one-half (1-1/2) inches wide.

c. Exposed fasteners, screws and/or roof mastic are unacceptable and will be rejected. System configuration only allows for exposed fasteners at panel overlap (if required) and trim details (as per manufacturer's guidelines).

d. Provide panels in continuous lengths from ridge to eave with no overlaps unless approved by manufacturer, in writing.

e. Panels lengths which exceed maximum shipping lengths shall be field rolled on equipment owned and operated by the panel manufacturer. Seam sealant must be factory applied.

f. Seam caps shall be manufactured in the factory and may be installed with end laps. Seam sealant must be factory applied.

g. Curved panels shall be mechanically curved to the exact radius of each curved roof area. Panels may be mechanically curved in the factory or on site. Flat panels field-conformed to the roof shape are unacceptable and will be rejected.

h. Tapered Panels: Tapered panels shall be formed from a single piece of metal.

Tapered panels formed from multiple pieces of joined metal are unacceptable. All performance tests must be applicable for the greatest panel width of the tapered panels.

Tapered panels must be designed to accommodate thermal expansion and contraction while fixed at the narrowest end of the panel.

3. Seam must be two and three-eighths (2-3/8) inches minimum height for added upward pressures and aesthetic appeal. Seam shall have continuous anchor reveals to allow anchor clips to resist positive and negative loading and allow unlimited expansion and contraction of panels due to thermal changes. Integral (not mechanically sealed) seams are unacceptable.

4. Concealed Standard Anchor Clips: Clips must be sixteen (16) gauge Galvalume steel, ONE (1) piece clip with projecting legs for additional panel alignment and provision for unlimited thermal movement in each direction along the longitudinal dimension.

a. Two (2) piece clips are unacceptable.

b. Sealant applied in panel cap must be isolated from clip to insure that no sealant damage occurs from the movement of the panel during expansion and contraction.

c. Clip must maintain a clearance of a minimum of three-eighths (3/8) inches between panel and substrate for proper ventilation to help prevent condensation on underside of panel and eliminate the contact of panel fastener head to panel.

5. Seam cap: Snap-on cap shall be a minimum of 1" wide "T" shaped of continuous length up to forty-five (45) feet according to job conditions and field seamed by means of manufacturer's standard seaming machine.

a. Cap shall be designed to receive two (2) beads of continuous hot applied gasketing sealant, which will be applied independent of anchor clip, to allow unlimited thermal movement of panel without damage to cap sealant.

b. Sealant shall be a SIS (Styrene-Isoprene-Styrene) block copolymer type thermoplastic rubber adhesive, non-fatigue water barrier.

6. Standing Seam Panel Width: 18".

7. Stiffening ribs: Located in flat of panel to minimize oil canning and telegraphing of structural members.

8. Replaceability: Panels shall be of a symmetrical design with snap on, mechanically seamed cap configuration such that individual panels may be removable for replacement without removing adjacent panels.

9. Panel ends shall be panned at ridge, headwall, and hip conditions, or where applicable.

10. Panel length: Full length without joints, including bends.”

Responses to bidder inquiries are provided “for informational purposes only" and do not revise the solicitation, plans or specifications.

BIDDER’S QUESTIONS AND GOVERNMENT REPLY

1. Specification 74113.16 paragraph 2.1.b calls for the roof to have a surface reflectivity index greater than 78 but the plans call for the roof to be dark brown, which has a reflectivity considerably less than

78. Is the roof to be dark brown per the finish schedule or is it to have a surface reflectivity greater than 78? Response: The color on the plans is correct; please make sure the roof paint contains PVDF (polyvinylidene fluoride) for maximum reflectivity.

2. No minimum metal gage was provided for the standing seam roofing. What is the minimum gage?

Response: Please see additional information included in this amendment related to the standing-seam metal roof.

3. No width of panel or height of seams are provided for the standing seam metal roofing. What is required for width and height or are those dimensions at the discretion of the contractor? Response:

Please see additional information included in this amendment related to the standing-seam metal roof.

4. Sheet S101 shows foundation work being performed on the west side of the covered storage where there is existing trench drain. How is the existing trench drain to be coordinated with the foundation, or is it to be removed? Response: The drain should be removed.

5. Many of the existing CMU walls at the covered storage have broken CMU or are leaning. Are the broken CMU and leaning walls to be grouted in place per the details, or is a certain amount of CMU to be assumed for replacement? Response: Please replace broken or damaged CMU.

(End of Summary of Changes)