Q_A_Roof_Replacement_at_NPS_CHCH_0002.pdf

Roof Replacement at Point Park Visitor Center

NPS, Chickamauga/Chattanooga National Military Park

Q&A

1. Can EDCO’s steel roofing shingles systems be considered as an approved equal for this project? No

2. Would you consider Enviroshake’s premium composite roofing that authentically replicates the natural aesthetic of cedar shake and natural slate providing maintenance free lifetime performance for the Chick&Chat reroof project? No

3. Per the Statement of Work, seamless gutters are required; however, can you please confirm if there is a preferred or required material and profile (e.g., aluminum, steel, copper, K-style, etc.) due to historical or aesthetic standards for the site? If there are any specific requirements or approved options, please advise so we can ensure our proposal aligns accordingly. Aluminum

4. Are there any important considerations, known issues, or site-specific challenges that prospective offerors should be aware of? If there are any clarifications, common pitfalls, or details that vendors typically overlook, I would greatly appreciate your insight. None to my knowledge.

5. Unforeseen Sheathing Replacement Pricing: SOW Section 2.3 requires the replacement of deteriorated or damaged roof sheathing. Because the extent of the deterioration cannot be fully determined until the existing roof is removed, how should offerors price this requirement under a Firm-Fixed-Price structure? Will the Government establish a specific baseline allowance, or should offerors provide a per-square-foot/per-sheet unit price for evaluation? Up to 20% of underlayment should be included in costs. The underlayment should be fine though.

6. Flashing Material Specifications: SOW Section 2.5 and Blueprint A5 state that flashing materials may be copper, lead-coated copper, aluminum, or steel. Given the significant cost variance between these materials and the historical nature of the building, does the National Park Service have a mandatory requirement for a specific metal type to satisfy historic preservation standards? Aluminum or Steel

7. Pre-manufactured Attic Steps Dimensions (Bid Additive A): Blueprints A10 and A11 require the installation of two sets of pre-manufactured pull-down attic steps. To ensure the correct models are quoted and ordered, could the Government provide the floor-to-finished-ceiling height for these two installation locations? No need for this in the price. Please eliminate.

8. Hazardous Materials in Insulation (Bid Additive A): Blueprint A10 dictates the removal of existing batt insulation from the attic space. Has the Government conducted environmental testing to confirm this insulation is free of hazardous materials (such as asbestos), or should offerors include hazardous material abatement and disposal protocols in their pricing? No need for this either. Do not include in pricing.

9. Period of Performance vs. Material Submittals: The stated Period of Performance is 30 days (May 25, 2026 – June 25, 2026). However, SOW Sections 2.4 and 2.6 require NPS Project Manager pre-approval for shingle type/color and gutter profiles prior to procurement. Will the Government consider issuing the Notice to Proceed (NTP) only after material submittals are approved to ensure the 30-day performance window is not consumed by manufacturer lead times? Let me know how long for the 3 dimensional shingles with a longer lifespan are acceptable and should be readily available.

10. Missing Wage Classification: The provided Davis-Bacon Wage Determination for Catoosa County, GA (GA20260319) does not explicitly include a classification for "Roofer." For the purposes of standardizing bids, does the Government recommend estimating a specific unlisted rate pending a post-award conformance request, or should offerors align their pricing with an existing related classification (e.g., Sheet Metal Worker or Carpenter)? Align with existing governmental classification

11. Section 2.1 of the SOW states: "A site visit is a must." Does this mean the site visit is mandatory? No but highly recommended.

12. The Statement of Work (SOW) specifically identifies the replacement of the asphalt shingle roof at the Point Park Visitor Center, noting an area of approximately 4,000 square feet. However, the provided drawings include details and plans for two distinct roof systems (The Visitor Center and the Ochs Museum Building). Could you please confirm if the requirement is strictly for the Point Park Visitor Center as described in the SOW, or if the Ochs Museum Building roof is also included in this scope of work? Och’s museum is not in this project just the visitor center roof.

13. The Scope of Work specifies 25-year warranty three-tab shingles. Can the Government confirm whether this requirement is intentional, given that three-tab shingles are considered a lower-grade option with a typical wind rating of approximately 60 mph under new conditions? Go with the longer lasting shingle dimensional I believe.

14. Is the Government aware that three-tab shingles are being phased out in many markets and may not provide long-term durability, particularly in high-wind environments? See number 13

15. Given that the project site is located in a mountainous area, would the Government consider upgrading to architectural (dimensional/laminated) shingles, which offer significantly higher wind resistance (typically up to 130–160 mph) and improved longevity? Yes

16. Would products such as GAF Timberline or equivalent 30-year architectural shingles be acceptable as an alternative to the specified three-tab shingles? Yes

17. Can the Government clarify whether maintaining the lowest initial cost is the priority, or if lifecycle performance and reduced maintenance/replacement risk should be considered in material selection? Best Offer

18. Has the Government experienced issues with shingle loss or seal failure on the existing roof system, particularly after several years of service? Some lost of shigles and some leaks

19. If so, would the Government be open to revising the specification to a higher-grade shingle system to mitigate future wind-related failures and maintenance concerns?

Yes

20. Upon reviewing the solicitation package for the Point Park Visitor Center roof replacement, we would like to request clarification regarding the total project scope. Remove/Replace shingles with a longer lifespan of shingle, replace gutters with 6 inch commercial grade, up to 20% of underlayment replacement with flashing and soffit/facia long roof line only with PVC or hardy board to be painted.

21. The Statement of Work (SOW) specifically identifies the replacement of the asphalt shingle roof at the Point Park Visitor Center, noting an area of approximately 4,000 square feet. However, the provided drawings include details and plans for two distinct roof systems (The Visitor Center and the Ochs Museum Building). Could you please confirm if the requirement is strictly for the Point Park Visitor Center as described in the SOW, or if the Ochs Museum Building roof is also included in this scope of work? Och’s Museum roof is not part of this project

22. I noticed in the LOMC evaluation document that it mentioned past performance.

Will you require a reference about our company's past performance? Correct

Roof Replacement at Point Park Visitor Center

NPS, Chickamauga/Chattanooga NMP

Q&A (Part2)

1. Can you please let us know if you prefer Architectural Shingles instead of three-tab asphalt shingles as stated in the SOW.

a. Which to Choose?

• 3-Tab: Best for budget-conscious projects, quick, cost-effective replacements.

• Architectural: Ideal for long-term durability, better aesthetics,

• Construction: 3-tab shingles consist of a single layer with notches creating three tabs, while architectural shingles are created by laminating two or more layers together.

• Appearance: 3-tab shingles create a flat, 2D look. Architectural shingles offer a more dimensional, textured, and 3D appearance.

• Lifespan & Warranty: Architectural shingles typically last longer (15–25+ years) compared to 3-tab shingles (10–20+ years).

• Wind Resistance: Architectural shingles generally have higher wind ratings (80 -120 mph) compared to 3-tab shingles (60-110 mph)

(We can provide you with both options cost for comparison if you prefer.)

Architectural

2. What format do you want us to use to provide the pricing?

a. Per RFP Cost proposals should include break down with unit pricing, rates for all labor, equipment, materials including mobilization, and travel for the contract period. – Do we also include overhead and Profit?

b. This is the sample Pricing template we submitted in previous project with NPS.

You should include everything in your bids and the bids should be broken down like your example below. I will reach out to specific contractors if a further breakdown is necessary.

Blank Pricing/Bidding Table:

Description Labor Cost

Material Cost

Equipment Cost

Mobilization Cost

Travel Cost

Overhead Profit Total

Replacement of Asphalt Shingle Roof

$0.00

$0.00

Construction Total $0.00 $0.00 $0.00 $0.00 $0.00 $0.00