W912P521B00090001.pdf

W38XDD03398938

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

PROJECT: Old Hickory Electronic Service Section Roof Replacement, Hendersonville, TN

PURPOSE: THe purpose of this amendment is to:

1. Provide the Government's response to vendors' questions.

2, Provide the pre-bid site visit sign-in sheet as a separate attachment.

3. Provide pictures of the project site as separate attachments.

4. Extend the bid opening due date from Wednesday, March 17, 2021 at 1:00 p.m. Central Time to Friday, March 19, 2021 at 11:00 a.m.

Central Time.

FAR 52.252-3, Alterations in Solicitation, is updated

1. CONTRACT ID CODE PAGE OF PAGES

J 1 3

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

16C. DATE SIGNED

BY 10-Mar-2021

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 W912P521B0009

X 9B. DATED (SEE ITEM 11)

19-Feb-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 X is extended, 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

10-Mar-2021

CODE

US ARMY CORPS OF ENGINEERS-CELRN-RC-N

DIRECTORATE OF CONTRACTING

110 9TH AVENUE SOUTH, RM A405

NASHVILLE TN 37203

W912P5 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P521B0009

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

Q & A

W912521B0009 Old Hickory Electronic Service Section Roof Replacement

Questions and Answers Amendment 0001

Q1: What is the thickness of the existing insulation on the roof and how is it fastened?

A: The existing EPDM material is expected to be two (2) layers of .045mil thickness, .09mil total.

Q2: Were moisture tests done on or before the pre-bid visit to determine percentage of wet or damaged insulation?

A: Moisture tests were not conducted prior to the pre bid visit. Water damage is expected to be in approximately 500sq ft. See section 01 22 00 paragraph 1.2.5.1 “Base - Item 05 - Replace Saturated or Damage Insulation”.

Q3: The term “loose laid” was the term used in the specs. Does this mean the field sheets will kept in place by ballast alone with no other means of adhesion or fastening?

A: Ballasted roofs are loose-laid, meaning roofing materials, including the insulation and roof membrane, are not fastened to one another or to the roof deck. Adjoining EPDM sheets are spliced together, and the membrane and insulation are held down with a minimum of 10 pounds of ballast per square foot

Q4: Will there be a warranty required and if so, what is the duration and what will be its stipulations?

A: Specifications and product data specify warranty durations. See Section 07 54 19 paragraphs 1.9.1 through 1.9.3 “Roof Membrane Manufacturer Warranty”.

Q5: In the specs, 24 gauge galvanized steel is identified for parapet coping- is this going to be a prefinished steel or a paint grip? if there is a pre-finished, what is the preferred color?

A: The existing 24 gauge galvanized steel will be salvaged to reuse for the new roof replacement. See section 07 54 19 paragraph 3.3.2.2 “Flashing”.

Q6: Is there a cleat required for the coping and flashing? if so, the detailed plan drawing did not reveal this.

A: A 22 gauge galvanized steel cleat is present according to section “3 Cap Flashing @ Beam” on drawings Q15- 74/36.1. Therefore, cleats are believed to be present. Additional cleats may be required if damaged or required according to manufacturer specifications.

Q7: In the sheet metal schedule, is this to be a seamless or 10’ gutter sections as is typical with COE jobs?

A: Gutter sections replacement is not within the scope of the contract. If damaged by contractor, replace gutter sections with 10ft gutter sections as typical with COE jobs.

Q8: Are there going to be set workdays and work hours or is this flexible?

A: Monday through Friday: 0730 to 1600 (from specifications 01 00 00 3.1.4 “Coordination with the Government”)

– Different hours may be requested.

Q9: Is the building in any kind of restricted area that requires special clearance or passes?

A: Contractor shall follow requirements of 01 35 50 “PROJECT SITE SECURITY AND AT/OPSEC PROCEDURES” before gaining site access.

W912P521B0009

Q10: Were photos taken at the site visit and are they available to us for us to review?

A: Vendors who attended the site visit took their own pictures, so those pictures will not be made available.

However, the Government has pictures of the site that will provided as a separate attachment.

Q11: Would we be able to see a core sample to determine the thickness of insulation under the roof?

A: No, core samples will not be available prior to bid opening.

Q12: Is there another method the Corps would propose to determine the thickness of the roof?

A: Please see the Government’s response to question 1.

Q13: Please clarify the building subsurface material.

A: Subsurface material is ribbed metal decking, see drawing Q15/75-36.1.

SECTION 00 10 00 - SOLICITATION

The required response date/time has changed from 17-Mar-2021 01:00 PM to 19-Mar-2021 11:00 AM.

SECTION 00 21 00 - INSTRUCTIONS

The following have been modified:

52.252-3 ALTERATIONS IN SOLICITATION (APR 1984)

Portions of this solicitation are altered as follows:

Amendment 001:

PROJECT: Old Hickory Electronic Service Section Roof Replacement, Hendersonville, TN

PURPOSE: THe purpose of this amendment is to:

1. Provide the Government's response to vendors' questions.

2, Provide the pre-bid site visit sign-in sheet as a separate attachment.

3. Provide pictures of the project site as separate attachments.

4. Extend the bid opening due date from Wednesday, March 17, 2021 at 1:00 p.m. Central Time to Friday, March 19, 2021 at 11:00 a.m. Central Time.

(End of Summary of Changes)