Amendment 03_IFB_70Z08221BPAT00400.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

PAGE OF PAGES

1 4

2. AMENDMENT/MODIFICATION NO.

3. EFFECTIVE DATE

8/11/2021

4. REQUISITION/PURCHASE REQ. NO.

21-21-821PAT004

5. PROJECT NO. (If applicable)

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

CONTRACTING OFFICER

USCG, CIVIL ENGINEERING UNIT MIAMI

15608 SW 117TH AVENUE

MIAMI, FL 33177-1630

CONTRACTING OFFICER

USCG, CIVIL ENGINEERING UNIT MIAMI

15608 SW 117TH AVENUE

MIAMI, FL 33177-1630

8. NAME AND ADDRESS OF CONTRACTOR (NO., STREET, COUNTY, STATE AND ZIP CODE)

Prospective Bidders

9A. AMENDMENT OF SOLICITATION NO.

70Z08221BPAT00400

9B. DATED (SEE ITEM 11)

7/14/2021

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE 176753874 FACILITY 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 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 ACKNOWLEDGEMENT 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 REFERENCED 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.)

IFB SOLICITATION NUMBER:70Z08221BPAT00400 – REPAIR ROOFS BASE WIDE AT U.S. COAST GUARD AVIATION TRAINING CENTER IN MOBILE, AL, IS AMENDED AS FOLLOWS:

A. THIS AMENDMENT INCORPORATES RFI QUESTIONS AND ANSWERS IN THE FOLLOWING PAGE.

B. BID OPENING DATE REMAINS AUGUST 17, 2021 AT 2:00 PM EDT

C. PLEASE RETURN A SIGNED COPY OF THIS AMENDMENT ALONG WITH YOUR BID.

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

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

ODALYS MCGEE, CONTRACTING OFFICER, USCG

15B. CONTRACTOR/OFFEROR

(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 (Rev. 10-83) PREVIOUS EDITION UNUSABLE Prescribed by GSA

FAR (48 CFR) 53.243

AMENDMENT NO. 0003

REPAIR ROOFS BASE WIDE AT U.S. COAST GUARD AVIATION TRAINING CENTER IN

MOBILE, AL

QUESTION/COMMENT #1: On the IFB Solicitation Section F, Clause 52.236-15 Schedules for Construction Contracts; paragraph (a): States the Contractor shall have a progress schedule. Does this schedule include the Alternate Bid 1 and 2?

RESPONSE: The inclusion of Option Item #1 and Option Item #2 into the schedule will depend if those particular options are exercised at award. If only the Base Item is awarded, then the work under the base bid items will be included under the schedule. If all line items are awarded, then the schedule will include the Base and Options.

QUESTION/COMMENT #2: Section E.2 Contractor Inspection System; paragraph (A): States contractor shall provide instruments and qualified personnel for testing of fluids and gases. Question, Please define means and methods for testing fluids and gases.

RESPONSE: These items indicated under section E.2 are items that may be required in accordance with the project Specifications; testing for fluids and gases will only apply if the Specifications require it.

QUESTION/COMMENT #3: Section G.2 Preconstruction Conference: Indicates the contractor will have a field office and telephone. Is a field office necessary and if so, will the government allow the contractor to use the base power and water systems for the office and what charges will need to be budgeted for?

RESPONSE: This section does not indicate requirements for field office and telephone. This section indicates what will be discussed during the preconstruction conference; part of the discussion items mentioned are the Contractor’s field office address and telephone number. For requirements of field office, telephone lines, and utility charges, please review the Specifications Section 01 51 00 – Temporary Utilities.

QUESTION/COMMENT #4: Has the Coast Guard taken into consideration the effects of COVID has had on getting materials? This supply chain issue could impact the schedule. Most suppliers will not guarantee delivery/ship dates for certain materials.

RESPONSE: No, the Coast Guard has not taken into consider the effects of COVID on the supply chain. The situation with COVID is very fluid and as such, long range planning is difficult. Any serious impact to the contractor’s schedule, due to COVID, will be mitigated accordingly via the Contracting Officer.

QUESTION/COMMENT #5: Drawings and Specifications Section 01 11 00 – Summary of Work, do not correspond. Reference 07 14 00, 1.1 References: ASTM C836/C836M. This ASTM requires a protection board over the coating. This is not typical for a roof recoating job. How will it be anchored? What uplift requirements need to be met? Please clarify the intent.

RESPONSE: Protection board is not required for base bid and bid additive 1. Protection board in this context is meant as a roof cover board needed for walkways leading from roof hatch to roof top HVAC equipment. Final method of placement, anchoring and compatibility will be determined by manufacturer’s representative.

QUESTION/COMMENT #6: General Notes state to clean the existing roof system and apply another coat of Silicone over existing. There is no specification for this application in terms of product information, formulation or application. Please provide additional specification information. Adhesion tests will be required prior to application. What are the adhesion requirements?

RESPONSE: This note refers only to bid additive 2. This is a spray applied polyurethane foam (SPF) roofing with an assumed silicone coating. The contractor is asked to verify the composition of the existing coating and recoat in accordance with standard practice, by an experience SPF manufacturer. The contractor is directed to procure the services of a registered roofing inspector to provide appropriate guidance.

QUESTION/COMMENT #7: Base Bid notes recommend the estimate for roof replacement to be no more than 10% of the existing roof area. Can you provide the existing roof configurations (insulation type and thickness, membrane types, vapor barrier requirements if any, existing deck type) so that we can determine replacement costs like for like?

RESPONSE: The base bid is composed of two roof type; a metal roof and modified bitumen roof. For bid purposes assume the modified bitumen roof is composed of a corrugated metal roof deck, at least 2 layers of 1.5” to 2” rigid insulation, at least ½” re-roof board, and a modified bitumen roofing system.

QUESTION/COMMENT #8: Please provide specification for Modified Bitumen roof replacement requirements and application required to replace wet insulation and bubbles.

RESPONSE: Exact specification will be determined by the manufacturer the contractor selects and the manufacturer’s roofing representative will direct the contractor on means and methods.

QUESTION/COMMENT #9: Is there an estimated SF of wall panels to be replaced? What is the gage of the existing material?

RESPONSE: For the base bid the contractor is to dismantle corner trim and reinstall. Panel information was provided in case the contractor found it easier to replace the single panel vice accomplishing what is stated on the contract drawings. For bid additive 1, SF can be determined by scaled drawings provide S107820821 A201 -- 12

QUESTION/COMMENT #10: There is a difference between the base bid repairs & the specifications on G001.

RESPONSE: Sheet 3 of 17 drawing number S6315950235A101. Disregard note 1 under “A two-coat reinforced liquid-applied cool roof membrane roofing system” heading. Since each building is unique the intent is to have a unique and specific scope for each building. Reinforcement fabric will be required when specified and recommended by manufacturers representative in order to fulfill the manufactures warranty.

QUESTION/COMMENT #11: Two-coat- are the two coats consistent of the base coat & the aliphatic top coat?

RESPONSE: Yes

QUESTION/COMMENT #12: Bid additive 1: Calls for a three-layer roof restoration system- What is the third layer?

RESPONSE: Under bid additive 1 on sheet B13445274 G001 replace three layer roof restoration system with two layer roof restoration system.

QUESTION/COMMENT #13: Building S63: Do they want the entire roof sprayed with Polyurea? Can the topcoat be any type of aliphatic material or does it need to be an aliphatic Polyurea?

RESPONSE: Spray the roof section identified in the contract drawings. Yes, an aliphatic urethane top coat has improved strength, longevity, chemical and UV resistant.

QUESTION/COMMENT #14: Buildings S06 and Buildings S10: What kind of primer:

RESPONSE: Primer specifics to be determined by manufacturer.

QUESTION/COMMENT #15: Buildings S06 and Buildings S10: Pretreat seams with layer of base coat & a reinforcement fabric before the liquid applied system is installed- (as noted typically with polyurea there isn't a reinforcement fabric used... Please clarify this).

RESPONSE: Bid work in accordance with drawings, specifications and manufacturer’s representative recommendations. The manufacturer’s representative will certify any value engineering change items you propose to the Contracting Officer.

QUESTION/COMMENT #16: Buildings S06 and Buildings S10: An additional flood coat is required to encapsulate the granules on the roof before building the liquid applied system per manufacturer's recommendations.- (please clarify this scope.. How much of a flood coat? Wouldn't the granules be encapsulated with the primer that is applied?)

RESPONSE: Bid work in accordance with drawings, specifications and manufacturer’s representative recommendations. The manufacturer’s representative will advise his contractor when work is acceptable and within manufacturers guidelines/specifications.

QUESTION/COMMENT #17: Buildings S06 and Buildings S10: An aromatics base coat (primer), aliphatic topcoat. (does the aliphatic topcoat have to be a polyurea)?

RESPONSE: Yes, an aliphatic urethane top coat has improved strength, longevity, chemical and UV resistant.

QUESTION/COMMENT #18: Item 10- states a DFT between 40-80 mills. This is a very large variation. If we priced 40 mills our material price would be 50% less. But most manufactures require 80 Mills to be warrantied.

RESPONSE: Your quantity take off should be done in accordance with manufacturers recommendations.

Depending on the manufacturer that will vary between 40 and 80 mil to achieve the desired warranty period.

QUESTION/COMMENT #19: Are electronic bids submitted through email acceptable.

RESPONSE: No. Electronic bids will not be accepted.

QUESTION/COMMENT #20: Are liquidated damages included on this project.

RESPONSE: Currently, there are no liquidated damages on this project.