24_138_ADD1.pdf

FROM:

DATE:

All Vendors Tywanna Scott, Quality Assurance Analyst Wes Bynes, Utilities apartment

Geri Sams Procurement D1rec or

January 25, 2024

SUBJ: Clarifications to the Specifications and Responses to Vendor's Questions

BID ITEM: Bid Item #24-138 Highland Avenue Water Treatment Plant Roof Repairs for Augusta, GA - Utilities Department

BID OPENING DATE: Thursday, February 1, 2024@ 3:00 p.m.

ADDENDUM NO. 1

This Addendum shall form a part of the referenced Bid Item #24-138 Highland Avenue Water Treatment Plant Roof Repairs and any agreement entered into in connection therewith equally as if bound into the original document. Acknowledge receipt of all Addendums on Attachment ''.B" within the Specifications package.

Clarifications to the Specifications:

• The Bid Proposal (Section 00 0310) is being reissued with this Addendum.

Responses to Vendor's Questions:

1. Question: What type of decking substrate?

Response: The substrate for the Filter Building is a precast concrete deck. The substrate for the Fort Gordon Pump Station Building is metal roof decking.

2. Question: On the HAWTP Filter Building Roof Replacement, our calculations show the roof is approximately 25,000 square feet. Please verify square footage.

Response: The Bid Schedule is correct.

3. Question: On the Fort Gordon Pump Station Building our calculations show the roof is approximately 5,000 square feet. Please verify square footage.

Response: The Bid Schedule is correct.

4. Question: Is the decking sloped or does it require tapered insulation?

Response: The Filter Building deck is flat and will require tapered insulation. The Fort Gordon Pumping Station Building is slope@ ¼" / foot and does not require tapered insulation.

5. Question: Bid Specs-Part 2-Products. 2.2 A TPO is specified. Is DURO-LAST an approved equivalent using 60 mil PVC membrane? -PVC is more durable, weather resistant, fire resistance and non-reactive to most chemical.

Response: A PVC membrane is acceptable.

6. Question: Can the liquidated damages be waived on this project or the calendar days be extended to 240 calendar days to complete? We don't feel like the roof can be completed in the 120 days as listed in the specifications.

Room 605 - 535 Telfair Street, Augusta Georgia 30901

(706) 821-2422 - Fax (706) 821-281 l www.au£!:usta2a.~ov Register at www.demandstar.com/supplier for automatic bid notification

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Addendum 1 Bid Item #24-138 Highland Avenue Water Treatment Plant Roof Repairs Paoe 1 of2

Response: The Filter building Roof must be substantially complete and watertight within 180 calendar days. The entire project must be completed within 240 calendar days.

7. Question: Spec section 075300 page 1 paragraph 1.2 - Summary. Please clarify the scope of work for the new roof system. PVC or TPO? Project appears to be a complete tear off of existing roof system down to the concrete decking? Vapor barrier? Specifications and drawings contradict.

Response: A PVC membrane is acceptable. Completely remove existing roofing and insulation to the substrate surface (precast concrete or metal roof deck).

8. Question: Spec section 075300 page 5 paragraph 2.4 - Roof insulation. Please clarify the insulation for the new roof system. Here in the spec, it says base layer of 1.5" ISO, upper layer of greater than 1 ", and ¼" tapered?? The drawings only call for a 1" cover board?

Response: A base layer of 1.5" minimum thickness insulation will be required for each building. The filter Building will require tapered insulation to slope to drainage points as shown.

9. Question: Spec section 075300 page 6 paragraph 2.5 - Insulation accessories. Please clarify that the insulation attachment method can be either mechanically fastened or adhesive?

Response: Attachment method can be either mechanically fastened or adhesive based on roofing material manufacturers requirements.

10. Question: Spec section 076200 page 3 paragraph 2.1 - Sheet metal. Is it the intent of this contract that the sheet metal coping cap be provided by the roof manufacturer and covered under the roof manufacturer's warranty? Sheet metal specification lists both 24 Ga Steel and Aluminum, please clarify which is correct.

Response: Existing metal cap and counterflashing may be reused. Replace any damaged material with like material. If metal flashing replacement is required to meet the requirements of the manufacturers Special Warranty, then replacement may be like material to existing or a material meeting the requirements of Specification Section 07 62 00.

11 . Question: It was mentioned that the lightning protection on this roof be removed and reinstalled. Please clarify if this means reinstalled as is or if this lightning protection needs to be re-certified after it is installed?

Response: Remove and reinstall the existing conductors, supports and connectors as required to complete the roof replacement Recertification is not required.

12. Question: Are walkpads to be installed to match the new configurations on the drawings?

Response: Install in the locations shown on the drawings.

13. Question: Is the county aware that the existing roof is a Garland R-merlite metal roof system that is 15 year into a 30 year roof warranty? It was installed in 2008 so the warranty does not expire until 2038.

Response: The Owner is aware of the existing roof warranty. This issue has been evaluated and the Owner has determined that a replacement roof is required.

Please acknowledge addendum in your submittal

END OF ADDENDUM

ATTACHMENTS: REVISED BID PROPOSAL (2 PAGES)

Addendum 1 Bid Item #24-138 Highland Avenue Water Treatment Plant Roof Repairs Paoe 2 of 2

DATE: ______ ___ _

Gentlemen:

In compliance with you invitation for bids, the undersigned hereby proposes to furnish all labor, equipment and materials, and perform all work for the project referred to herein as:

HIGHLAND A VENUE WATER TREATMENT PLANT (HA WTP) - ROOF REPAIRS

In strict accordance with the Contract Documents and in consideration of the amounts shown on the bid schedule attached hereto and totaling:

and ___ _, 100 dollars( ________ ).

The undersigned hereby agrees that, upon written acceptance of this bid, he will immediately execute a formal contract agreement with the Owner, and that he will provide the bond or guarantees required by the contract documents.

The undersigned hereby agrees that, if awarded the contract, he will commence the work within Ten (10) calendar days after the date of written notice to proceed, and that he will complete the work within TWO HUNDRED AND FORTY (240) calendar days after the date of such notice. The Filter building Roof must be substantially complete and watertight with 180 calendar days.

The undersigned acknowledges receipt of the following addenda:

Addendum No. Addendum Date

Enclosed is a bid guarantee consisting of ______________ _ ____ in the amount of _____________________ ____ _ __ .

Respectfully Submitted, Firm

Address

BY: _______ _ _ ___ _

TITLE:. __________ _

PAGE- I

BID ITEM # 24-13 8 Addendum 1

Bid Schedule: HAWTP Filter Building Roof Replacement

Item a b.

C.

d.

e.

f.

a b.

C.

d.

e.

f.

Item Description Unit Quantity Unit Total Cost

Filter Building

Demolition of Existing Roofing LS 1 $ $

Tapered Roof Insulation SF 18520 $ $

Membrane Roof SF 18520 $ $

Flashing and Sheet Metal LS 1 $ $

Remove and reset Lightning Protection

LS 1 $ $

System Miscellaneous work including removal and resetting of existing HVAC LS 1 $ $ eauipment

Subtotal for Item No 1 $

Fort Gordon Pump Station Building

Demolition of Existing Roofing LS 1 $ $

1.5 inch Roof Insulation SF 4100 $ $

Membrane Roof SF 4100 $ $

Flashing and Sheet Metal LS 1 $ $

Remove and reset Lightning Protection

LS 1 $ $

Svstem Miscellaneous work including removal and resetting of existing HVAC LS 1 $ $ equipment

Subtotal for Item No 2 $

Project Total Bid (Sum of Item 1 & 2) $

PAGE - 2

BID ITEM# 24-138 Addendum 1