SF30-Amendment_3.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE PAGE OF PAGES

GENERAL SERVICES ADMINISTRATION

PUBLIC BUILDING SERVICE

819 TAYLOR ST, RM 12B

FORT WORTH, TX 76102

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X) 9A. AMENDMENT OF SOLICITATION NUMBER

47PH0518R0051

9B. DATED (SEE ITEM

11) 04/19/2018

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATD (SEE ITEM 13)

CODE FACILITY CODE

3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable) 2. AMENDMENT/MODIFICATION NUMBER

0003 06/14/2018

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

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or electronic communication 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 letter or electronic communication, provided each letter or electronic communication 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 NUMBER AS DESCRIBED IN ITEM 14.

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

NUMBER IN ITEM 10A.

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

1. See attached answers to Request for Information (RFI).

2. No additional RFI's will be accepted.

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

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

Roof Replacement and Repairs

U. S. Post Office / Courthouse

Questions for Clarification

8 June 2018

1. Amendment No. 1 added the requirement for a Roof Anchor System, which included the requirement that the “Design shall not incorporate crossing over abrasive surfaces”;

which would include the 24” or so wide limestone cornice ledge below the parapet.

While the ledge can be accommodated by utilizing an outrigger suspension system, the system would have to be portable due to the visual impact and its affect upon the historical standards for the building. Has the government investigated whether there is a system available that would be compliant with the GSA’s Historic Building Subject Matter Expert or SHPO? If so, could the type of system be identified for pricing purposes?

The contractor would provide design solutions for a system that would avoid the 24" ledge so that we can review/approve. Recommendation is to provide a system that avoids the ledges and can be swung around onto the rooftop to be out of view when it is not being used. Once GSA reviews/approves, GSA will forward to the AR SHPO for consultation.

2. The parapet caps are actually made of limestone, not precast concrete as identified in the response to questions in Amendment No. 1. Since the base bid requires the limestone caps to be removed, so that the roofing membrane can be extended through the parapet wall, and then the stone cap reinstalled on top of the roofing; what method of anchorage of the stone to the roof membrane is required to keep the stones in place without penetrating the roofing membrane? Is this an appropriate application for the required EPDM products?

Most manufacturers have details for this type of application. The Contractor’s Architect/Engineer should contact technical support for the products being considered for assistance.

3. The installation recommended in Question No. 45 of Amendment No. 1 is the correct installation method for a roofing system on a historic building with a parapet of this type, however pressure washing of the limestone parapet caps has to be performed with caution due to the nature of the weathered limestone. Has the parapet condition been inspected by a masonry restoration company and, if so, are there any recommendations regarding the vertical mortar joints of the stone parapet caps?

There has been no study of the limestone parapet caps. Contractor will employ the services of a masonry restoration consultant and provide and submit appropriate mortar or sealant product submittals for approval by GSA.

4. Has the GSA’s Historic Building Subject Matter Expert and SHPO approved the substitution of copper coated stainless steel in place of the copper detailing? If not at this time, will a change order be issued to purchase the approvable materials following the award of the contract?

Yes, it has been approved.

5. Attachment 1: GSA Article III, Part A. Design Services; A.3.LEED, b. requires this project to provide a design to meet LEED Silver standard. The project scope is very narrow and does not include enough categories to meet a basic standard. Is this LEED requirement applicable to this project?

NO; current building code requirements will be sufficient.

6. Attachment 1: GSA Article III, Part A. Design Services. Refer to A.6.a This provision requires that certain sections of the specifications be prepared using an AIA distributed GSA Supplemental Masterspec specifications sections. Since these have to be purchased by packages grouped by division, it would be appropriate to know which divisions must be purchased. Is there a listing of sections required to be developed using GSA Supplemental Masterspec sections?

The SOW requires that the construction documents be prepared by the Contractor’s Licensed Architect or Engineer. GSA would expect that the design professional would have the appropriate packages at their disposal and would know which divisions are appropriate to prepare the construction documents.