SF-30_Amendment 2 - QandA.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

PAGE OF PAGES

1 13

2. AMENDMENT/MODIFICATION NO.

A0002

3. EFFECTIVE DATE

06/24/2024

4. REQUISITION/PURCHASE REQ. NO.

PR12646677

5. PROJECT NO. (If applicable)

6. ISSUED BY CODE

7. ADMINISTERED BY (If other than Item 6)

CODE

AMERICAN EMBASSY LISBON

AV. DAS FORCAS ARMADAS, ATTN: GSO/PROCUREMENT

LISBOA 1649-044

PORTUGAL

8. NAME AND ADDRESS OF CONTRACTOR (NO., street,city,county,State,and ZIP Code)

9a. AMENDMENT OF SOLICITATION NO.

19P05024Q0028

Prospective Offerors

9b. DATED (SEE ITEM 11)

6/24/2024

10a. MODIFICATION OF CONTRACT/ORDER NO.

10b. DATED (SEE ITEM 13)

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 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:

X

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor [X ] 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.)

The purpose of the amendment to this solicitation is to answer all questions submitted by interested vendors – site visit 07/11/2024.

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 OF CONTRACTING OFFICER

Jonathan Nwosu

15B. NAME OF CONTRACTOR/OFFEROR

BY

(Signature of person authorized to sign)

15C.DATE

SIGNED

16B. UNITED STATES OF AMERICA

BY

(Signature of Contracting Officer)

16C.DATE SIGNED

NSN 7540-01-152-8070 Standard Form 30 (revised 10/83) Previous edition unusable Prescribed by GSA FAR (48 CFR) 53.243

RFQ 19P05024Q0028 – Manor House Windows Restauration

SITE VISIT – 07/11/2024

Questions & Answers

1) Window Hardware The window hardware seems to have been replaced of time of course, but not in a consistent way since there are different types of hinges and, locks and hasps.

In the kitchen the locks seem to be very recent and are metal color. Hinges look like these in the dining room but were painted white.

To be consistent shall the shutters be sanded and brought “back” to the natural wood as in the other social rooms?

Paint analysis should determine the earliest applied extant finish which will inform how the shutters, windows, and ferrous metal elements should be finished (paint type and color or varnish for example).

c

In the MSG social area, locks and hinges were painted in white.

At some moment in time, some shutter holders were added. Are the holders to be kept or removed?

Paint should be stripped from copper alloy hardware. These elements can be restored, re-painted if appropriate, lacquered if appropriate (up to contractor to recommend), and lubricated with graphite. Non-original hardware elements can be removed of they aren’t serving an essential function.

In Many window shutters, the locks were painted in brown color, but the hinges are natural brass color.

The security bar has also been painted in brown.

Shall all the hardware be sanded and brought to natural color, coated with some translucid varnish?

Or shall the hinges be painted in brown to be consistent in all the windows.

Some of these questions should be informed by precedent at other contemporaneous historic sites in the area. The contractor(s) should have enough experience with historic windows to make recommendations regarding hardware finish. Typically, copper alloy window hardware is unpainted. A wax or varnish can be applied by the contractor if they feel that is appropriate, but I’ve also seen 18th and 19th century brass and bronze hardware unfinished. Ferrous metals require some sort of coating for protection. Paint analysis will inform type and color of finish. Contractor will need to submit product data sheets for client review. Non-original hardware elements can be removed of they aren’t serving an essential function.

In the same shutter, some parts are brass color and others were painted in brown.

MSG bathroom, hardware and shutters are painted in white. To be consistent shall the shutters be sanded and brought “back” to the natural wood as

In the MSG bedrooms the hardware is different from the one in the MSG bathroom.

To be consistent shall the shutters be sanded and brought “back” to the natural wood as

In the MSG bedroom the hardware is recent and very simple.

Basically, a hasp.

1) Another question that all contractors raised after assessing the windows is whether or not it would not be better to replace them all with similar-looking windows.

What they suggest is doing the same they have been doing on some older palaces, namely manufacturing similar-looking wood windows but with double grazing.

There would be a consistent type of hinge and hardware. One of the companies suggested taking Gus and me to see this type of old-style double-glazing windows and doors they have replaced in a historical palace that is now a museum.

In many cases the windows must be replaced anyway since the wood structure is completely rotten.

I am open to considering replacement for the most damaged windows (the two on the west elevation). The contractor will need to show physical samples of their reproduction windows and provide a cost for this alternative in order for us to consider. Any reproductions should match design and materials in-kind but can be modified to include double pane glazing. Most windows are in sound enough condition to be restored. Because they are original to the building and serviceable, they should be retained and repaired.

2) The big window in the Main entrance lobby, has hinges to enable opening, but at some point, in time the window has been locked up and successive painting coats make it now impossible to open without a in-depth sanding and repairing. This if the idea is to enable opening again.

Also, the outer part of this window frame is very rotten. I mentioned to Gus on the phone, CH’s objective is to restore operability to the windows. Because opening this window may have safety or security concerns, SHEM, POSHO, and RSO should weigh in regarding restoring its operability and means for securing it closed.

3) Time for the restauration

All the contractors said that this restauration/conservation work requires time-consuming logistics, since they will have to take windows with them, restore, bring them back to be painted onsite (to keep the same painting style of the frames). According to the contractors, these old frames are usually anchored with lateral long nails to the stone frame.

Removing window frames means either cutting the long nails with an edge grinder, and then afterwards repairing some damages this operation may cause to the frame.

The other solution is leaving the frames on place and treat them onsite, with the limitation this solution holds. I suggest treating frames in situ where their condition permits. Otherwise, frames should be removed as carefully as possible, restored, and reinstalled.

4) The contractors also identified a few windows where some parts were already been replaced, and we do not know if they used the same type of wood as the original or not but based on the eye observation probably different wood. That’s fine. Previous repairs can be documented/identified in the contractor’s conditions assessment. Serviceable previous repairs in good condition do not need to be replaced unless they appear unsightly – this will probably depend on the finish technique (i.e. if surface is varnished and the repair stands out visibly).

5) Should the contractor replace all the glass? Should all the glazing be replaced? Films should be removed from all glass so that an assessment of conditions shall be done. Glass is to be retained unless it is broken or has significant visual impairment to be decided by the COR.

6) Should the windows be removed from the site for restauration or not? Windows shall be removed, rehabilitated, and then reinstalled.