Addendum_3_-_IFB_26-013-DN.pdf

DATE: April 10th, 2026

TO: All Interested Bidders and Other Interested Parties

FROM: Daniel J Nickols, PE – Associate Vice President, AVCON, Inc.

The City makes the following changes, additions, deletions, information, and/or clarifications and now considers the addendum a part of the IFB Document. Bidders must acknowledge receipt of this addendum by indicating receipt in the space provided on the Proposal Bid Form. If the bidder has already submitted the Proposal Bid Form to the City’s Procurement Division, the Bidder should revise their electronic submission to include this addendum. In any case, the submission of a bid is an acknowledgment of receipt of the addendum. The City will construe all bids received as though the

Bidder has received and acknowledged the addendum.

Clarifying/Confirmation Items:

• The owner has requested hot dipped galvanized for all 4 high-powered hangar doors. A previous addendum noted that factory finish and field painted would be acceptable, but that response is overruled by this clarification.

• Contractor shall slope slab to center drain for each hangar bay.

Below is the City’s reply to RFIs (Request for Information – a/k/a bid inquiries or questions) submitted by interested parties by the posted deadline to submit RFIs.

Q1. Please let us know of any specialized circuits such as welders, air compressors, and exhaust fans for the hanger bays.

A1. At this time, leases have not been finalized for the new facility. Future tenants may have specialty requests for power and circuiting. If specialized circuits are required or requested by the future tenants, any changes to the documents will be coordinated with the awarded bidder and extra work will be addressed in accordance with Item GP 40-04, Extra Work.

Q2. How many interior 20amp GFCI duplex receptacles are needed and please provide locations for them. Will the demising walls between hanger units be drywall.

A2. Basis of design shall be 10, 20amp GFCI duplex receptacles per unit. Drywall is an acceptable material for demising walls.

Q3. Could you confirm the budget for this contract?

A3. To ensure a fair and competitive bidding process, the project budget and engineer’s estimate will not be shared. Bidders should rely on the documents provided and their professional judgment in preparing submissions.

Q4. Please specify roof panel type. Standing seam or exposed fastener?

IFB 26-013-DN

Commercial Hangar Building

Addendum No. 3

A4. Standing seam metal roof panel to be 24 ga. PBR 16” spacing.

Metal wall panels to be 24 ga. PBR 12” spacing.

Q5. Please specify collateral load required for PEMB.

A5. Industry standard states that 5 or 10 psf is a typical value specified for collateral load. These loads shall follow the FBC 2023 code requirements and be provided by the Pre-Engineered

Building manufacturer within their design calculations for AHJ review and approval.

Q6. Is Builders' Risk required on this project?

A6. No.

Q7. (Page 9 – Item 2.8 A.1) Could you confirm the correct hydraulic door dimensions: 55’-0” W x 15’-0” H

(general requirements), or 45’-0” W x 15’-0” H (specified in item 2.8 A.1)?

A7. 55’-0” W. x 15’-0” H. clear opening.

Q8. (Page 11 – Item 3.2 A-1) Windows are referenced; however, they are not shown in the drawings. Please confirm whether windows are part of the project scope or if this is a standard specification note.

A8. Windows are not required within the scope of work for this project.

Q9. (Page 4) The 2023 FBC allows the main frames to be design with a 12 # live load, is that allowed?

A9. The design loads shall follow the FBC 2023 code requirements and be provided by the Pre-

Engineered Building manufacturer within their design calculations for AHJ review and approval.

Q10. (Page 6 – Item 2.3 D-2) Bent frame configuration references a mono-slope condition, while project requirements indicate a gable roof. Please clarify the intended structural configuration.

A10. Owner has confirmed that a single-sloped roof is preferred to match the existing surrounding hangars. Roof shall be sloped from front to back. A gutter and downspout system shall be included and direct connections to adjacent stormwater infrastructure shall be provided.

Slopes and elevations shall be field coordinated.

Q11. (Page 1 / Item 2.9 A) Please clarify roof vent requirements and confirm whether these elements are to be provided as part of the metal building system or coordinated with the mechanical (HVAC) scope.

A11. There will be no roof vents now that the roof slope is single-sloped.

Q12. (Page 9 – Item 2.10) Please clarify the construction of full-height partition walls between hangar units, including whether these are single-skin panels or multi-layer assemblies, and whether insulation is required.

A12. Interior wall separation for tenants (non-rated, not insulated); steel angle to be placed on one side of each separation wall (at the bottom) in case of emergency oils spills. Drywall is an acceptable material for demising walls.

Q13. (Page 12 – Item 3.3) Section 3.3 references both single-skin and insulated composite roof panels, which appear to be conflicting systems. Please confirm the intended roof assembly.

A13. Standing seam metal roof panel to be 24 ga. PBR 16” spacing with 6” thick vinyl insulation over purlins. Metal wall panels to be 24 ga. PBR 12” spacing with 4” thick vinyl insulation over girts.

Q14. (Page 2) Please clarify required field inspections, testing scope, and documentation requirements.

A14. Contractor shall be responsible for providing material testing services for subgrade, subbase, and base materials. Owner shall provide material testing services for concrete and asphalt.

General inspection of the work shall be performed by the Engineer of Record, and building permit related inspections shall be performed by the City of Leesburg.

Q15. (Page 3) The specifications require a 20-year weather tightness warranty for the metal roof system.

However, the specified 26 GA screw-down roof panel system may not qualify for this warranty duration per manufacturer requirements, which may require a 24 GA standing seam system. Please clarify this discrepancy and confirm which requirement shall govern: the specified panel system (26

GA screw-down) or the 20-year weather tightness warranty requirement. Kindly confirm the acceptable roofing system to be used.

A15. In order to get a 20-year warranty, a 24 ga. standing seam roof panel is acceptable.

Q16. Is a single slope roof acceptable in lieu of gable roof?

A16. Owner has confirmed that a single-sloped roof is preferred to match the existing surrounding hangars. Roof shall be sloped from front to back. A gutter and downspout system shall be included and direct connections to adjacent stormwater infrastructure shall be provided.

Slopes and elevations shall be field coordinated.

Q17. Page 5 of the DCP includes 'Building signage for tenant and code requirements'. Can you please confirm the extent of building signage required for tenants? Will it be illuminated?

A17. Refer to the answer to Question 16 within Addendum #1.

Q18. Please provide UL assembly number or detail on construction of 3-hr fire wall.

A18. This is the responsibility of the D/B firm.

Q19. DCP page 15, d., iii. refers to recirculating systems. Is a circulating pump required?

A19. No.

Q20. There are no footing sizes, slab thickness, or reinforcement details for the concrete PEMB foundation. How should the foundation be priced?

A20. Foundation size is dependent upon the PEMB manufacturer’s building specifications and shall be the responsibility of the D/B Firm.

Q21. 13 34 19, 2.4, E, states: "Roof sheets shall extend not less than 12" beyond the face of the door". Is the intent to have a 12" eave extension? On both eaves?

A21. There are no eaves/overhangs.

Q22. Please confirm wall panels are in fact to be 26 GA with Galvalume Finish, and not 24 GA with

Kynar or 26 GA Silicone Modified Polyester (SMP) finish. Note--26 GA w/SMP finish would be most cost effective.

A22. Refer to question #13 above for a response.

Q23. Please confirm if the roof slope of the building follows the 240 foot direction? Also, please provide collateral loads and any other loads on roof system?

A23. Refer to questions #5 and #11 above for responses.

Q24. Is prior approval necessary for alternate building manufacturers?

A24. Provided that all requirements of the Design Criteria Package and the Bid Documents are met, no prior approval is required.

Q25. Q28 states: “Permit and impact fees shall be paid by the contractor and reimbursed by the owner.” To ensure consistency in the bid process, could there be a fixed line item/allowance for permits and impact fees.

A25. A new allowance line item has been added to the bid for Permit and Impact Fees.

Q26. Please advise how to submit additional PEMB Manufacturers for this project.

A26. Provided that all requirements of the Design Criteria Package and the Bid Documents are met, no prior approval is required for PEMB Manufacturers not specifically names in the bid documents.

Clarifying/Confirmation Items:

• The owner has requested hot dipped galvanized for all 4 high-powered doors.

• Slope slab to center drain for each hangar bay.

ACKNOWLEDGMENT - Addendum No. 3

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