Request for Information 3 Sep.pdf

DEPARTMENT OF THE AIR FORCE

117TH AIR REFUELING WING (AMC)

SUMPTER SMITH JOINT NATIONAL GUARD BASE

5401 EAST LAKE BLVD, BIRMINGHAM AL 35217-3545

1. Could you please confirm whether updated material specifications will be issued, or if we should proceed based on standard acceptable roofing materials?

Answer: Please follow UFGS; Division 7- Thermal and Moisture Protection, Part 2.1.2

Steel Sheet Panels, color Colonial Red.

2. Will the government publish additional specification data and/or color information beyond what is described in the SOW for the metal roofing system?

Answer: Please follow UFGS; Division 7- Thermal and Moisture Protection, Part 2.1.2

Steel Sheet Panels, color Colonial Red.

3. Will the contractor be responsible for replacing the existing gutter system? If so, does the government wish to color match the new roofing system?

Answer: Yes, please follow UFGS; Division 7- Thermal and Moisture Protection, Part

2.1.2 Steel Sheet Panels, color Colonial Red.

4. What are the specifications for the new gutters to be installed?

Answer: See pg. 2

5. What are the specifications for the drip edge flashing to be installed?

Answer: See pg. 2

6. What are the specifications for the fascia and soffit overhang?

Answer See pg 2

7. Will the Government accept mailed bids?

Answer: Yes, please mail your bid to: 117th Air Refueling Wing

5401 East Lake Boulevard

Birmingham, Al. 35217 - 3545

Attn William K Hall – 117th Base Contracting

Office - Bldg. 175

8. Can the government provide a copy of the as-built drawings?

Answer: We don’t have drawings for this facility.

ROOF-EDGE DRAINAGE SYSTEMS – Answer to questions 4-6

A. Gutters: Manufactured in uniform section lengths not exceeding 12 ft. (3.6 m, with matching corner units, ends, outlet tubes, and other accessories. Elevate back edge at least 1 inch (25 mm) above front edge. Furnish flat-stock gutter straps, gutter brackets, expansion joints, and expansion-joint covers fabricated from same metal as gutters.

1. Zinc-Coated Steel: Nominal 0.034-inch (0.86-mm) thickness.

2. Gutter Profile: As indicated on the drawings and in accordance with SMACNA's

"Architectural Sheet Metal Manual."

3. Minimum Gutter Size: 4-1/2 inches deep by 6 inches wide.

4. Corners: Factory mitered and continuously welded

5. Gutter Supports: Gutter brackets and Straps as recommended by manufacturer for application and required performance standards.

6. Special Fabrications: Radiused sections .

B. Downspouts: Plain rectangular complete with mitered elbows, manufactured from the following exposed metal. Furnish with metal hangers, from same material as downspouts, and anchors.

1. Zinc-Coated Steel: Nominal 0.034-inch (0.86-mm) thickness.

2. Size: 2" by 3"

C. Zinc-Coated Steel Finish: Three-coat fluoropolymer

1. Color: As selected by the Government from manufacturer's full range and matching approved roofing / flashing material color.

PREMANUFACTURED ROOF CURBS

A. Curbs shall be constructed of steel thickness required to support applicable systems/equipment. Minimum 18-gauge zinc coated (galvanized) steel sheet.

B. Fully mitered and heli-arc welded all corners. Provide integral base plates, with water diverter cricket.

C. Minimum height of Curb shall be 8" above finished roof .

D. Curbs shall be constructed to match slope of roof and provide a level top surface for mounting of equipment.

E. Curb flange shall be constructed to match configuration of roof panel. Side flange shall extend to the next natural seam in the roof panels and conform to seam configurations.

MATERIALS

A. Zinc-Coated (Galvanized) Steel Sheet: ASTM A653/A653M, G90 (Z275) coating designation.

FINISHES

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal

Products" for recommendations for applying and designating finishes.

B. Protect mechanical and painted finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping.

C. Appearance of Finished Work: Noticeable variations in same piece are unacceptable.

Variations in appearance of adjoining components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast.

D. Coil-Coated Galvanized-Steel Sheet Finishes:

1. Fluoropolymer Two-Coat System: 0.2 – 0.3 mil primer with 0.7 - 0.8 mil 70 percent PVDF fluoropolymer color coat, AAMA 2605, meeting solar reflectance index and warranty requirements.

2. Concealed Surface Finish: Apply pretreatment and manufacturer's standard acrylic or polyester backer finish consisting of prime coat and wash coat with a minimum total dry film thickness of 0.5 mil (0.013 mm).

9. How many copies of our bid is required? There is nothing listed on the solicitation page

1.

Answer: At least one copy of the bid is required.

10. Structural Study: Has anyone done a study on whether the roof can handle the extra weight of a slanted roof that is desired?

Answer: No study has been done.

11. Roof Specs: Request the roof specifications: gauge, size, brand, any dimensions they can provide for the new slanted roof.

Answer: follow UFGS; Division 7- Thermal and Moisture Protection, Part 2.1.2 Steel

Sheet Panels, color Colonial Red.

12. Access Request: Is it possible to gain access inside the building? Ideally to the attic. We can check the trusses ourselves. That way we can see their condition and spacing and figure out what the roof can really support.

Answer: A site visit was conducted on 19 Aug 2025, Further coordination cannot guaranteed.

13. Please provide the spacing of the current trusses and condition.

Answer: Please coordinate to access the facility and take measures.

14. Please provide any internal photos of any damages and any information of damages that we may encounter.

Answer: No photos available.

15. Additional question: For that low-slope section, the warranty on a standing seam metal roof wouldn’t really apply since it’s designed for pitches of about 1:12 or greater. Because this particular area is too flat, we’d like to confirm that you’re comfortable with us using TPO (thermoplastic polyolefin) roofing material there instead.

TPO is a durable, single-ply membrane that’s ideal for low-slope areas and will give you the proper warranty and waterproofing.

Answer: Construction must follow UFGS; Division 7- Thermal and Moisture Protection, Part 2.1.2 Steel Sheet Panels, color Colonial Red.

16. Has an asbestos test been done? If so, please provide copies of the report.

Answer: No asbestos is present on the roof.

17. Can the government identify any exhaust fans or vents that may be abandoned?

Answer: Replace roofing around all existing exhaust fans and vents.

18. Will the government require ridge vents on all ridges or only replace in the locations where they currently exist?

Answer: match existing

19. Will the government require gutters and downspouts on all eaves, or only in locations where they currently exist?

Answer: match existing

20. Since the extent of damaged decking cannot be accurately determined until the existing shingles are removed, would the government consider establishing an allowance percentage to cover potential decking replacement?

Answer: Negative, contractors were responsible (during scheduled site visit) for the inspection and verifying damage, as well as identifying areas of the roof that may required new decking. The proposed work must reflect these findings.

21. Can the government confirm whether the existing roof area currently covered with metal

U-panel will be removed and replaced with standing seam metal roof panels

Answer: Yes, all roof must match style and material

22. Is this project tax-exempt?

Answer: This project is not tax-exempt.

23. Can the Government confirm the replacement of the existing soffit? If so, please provide specifications.

Answer: follow UFGS; Division 7- Thermal and Moisture Protection, Part 2.1.2 Steel

Sheet Panels

24. Can the government confirm decking material, i.e., OSB, plywood, etc.?

Answer: follow SOW and UFGS; Division 7- Thermal and Moisture Protection, Part

2.1.2 Steel Sheet Panels

25. Will the prime be required to provide a quality control, superintendent, and site safety and health officer to be on-site throughout the duration of the project? If so, can one person fulfill the roles if they possess the required certifications/qualifications?

Answer: Forman or superintendent could wear multiple hats, as long as such person is qualified and certified