Roof_Replacement_Bidder_QA_Review.docx

Roof Replacement Contract Bidder Question Review and Responses

1. Bidder Question Will a one-week bid-date extension be issued to allow bidders to incorporate responses to questions and seek subcontractor quotes for possible remediation?

response: The Government does not anticipate extending the bid due date. Any change to the solicitation schedule will be issued by formal amendment.

2. Bidder Question Are there any sustainability requirements for the project?

response: No project-specific sustainability requirements beyond those contained in the solicitation, applicable Federal requirements, manufacturer requirements, and applicable codes are being imposed.

3. Bidder Question Are there any limitations on work hours/days?

response: Normal work hours are Monday through Friday, 8:00 a.m. to 5:00 p.m. Work outside these hours requires prior approval by the COR.

4. Bidder Question Will there be any restrictions regarding noise or odor during roofing operations?

response: No special noise or odor restrictions are anticipated during approved working hours. The Contractor shall use reasonable measures to minimize disruption to occupants and shall coordinate unusually noisy, dusty, or odor-producing operations with the COR.

5. Bidder Question What are the interior protection requirements? If interior protection is required, will there be restrictions on access to interior space?

response: Removal and replacement of attic insulation is anticipated to occur from the roof side; routine interior access is not anticipated. The Contractor remains responsible for protecting occupied/interior spaces from water, dust, debris, and damage during roofing operations. Any required interior access shall be coordinated with the COR in advance.

6. Bidder Question The Statement of Work requires work to be coordinated with applicable SHPO requirements and the Secretary of the Interior’s Standards. What are the requirements for submittal to the authorities having jurisdiction, if any, and who is responsible for associated documents and costs?

response: The Forest Service will retain responsibility for required consultation/coordination with SHPO or other reviewing authorities. The Contractor shall not independently initiate SHPO consultation unless specifically directed by the Contracting Officer. The Contractor shall provide product data, samples, photographs, proposed installation details, and other information requested by the COR to verify conformance with the Secretary of the Interior’s Standards and the approved project scope. No substitution affecting exterior appearance, material profile, color, finish, detailing, or another character-defining feature shall be made without prior Government approval.

7. Bidder Question The SOW requires R-49 loose-fill insulation in attic spaces and states that “degraded insulation” is to be removed. How should degraded be defined, how should removal quantities be handled, and what is intended for the Shower/Laundry Building?

response: For purposes of this contract, degraded insulation includes insulation that is wet, water-damaged, mold-damaged, visibly contaminated by rodent/pest waste, physically deteriorated, or otherwise unsuitable to remain in place. Insulation requiring removal shall be replaced as necessary to provide the R-49 assembly required by the SOW. No interior ceiling or new rafter framing is required at the Shower/Laundry Building. Insulation work is limited to the enclosed left and right portions identified during the site visit where insulation is currently present. Essentially the goal for insulation is to meet the r-49 requirement and ensure there is no mold, water damage, or rodent/pest waste within the insulation.

8. Bidder Question The SOW requires new gutters at all buildings “where applicable.” Where are gutters and downspouts required?

response: Gutter type/material must match VISUAL appearance of gutters that exist on each respective building. Gutters shall be installed on the respective side of each building to match drainage/slope of roof. For the big house that would be the East and West sides, for the shower/pump house that would be the east and west sides and for the small house that would be the north and south sides. Gutters shall be sized based on tributary roof area and design rainfall and shall discharge in a manner that does not cause erosion, foundation saturation, or pedestrian hazards.

9. Bidder Question Mortar joints and the cap at the Big House chimney are deteriorating and may allow water infiltration. Should bidders include an additive alternate for a new mortar cap and pointing?

response: Include repair/repointing of visibly deteriorated chimney mortar. Existing sound masonry shall remain. Replacement mortar shall be compatible with the existing masonry and shall match the existing mortar in color, texture, and joint profile. Do not install a new or substantially altered chimney cap/crown configuration.

10. Bidder Question Existing metal roofing appears to have been coated, while new flashing in the SOW is listed as No. 26 galvanized. Should bidders assume the historic metal roofing was galvanized, or is another coating/type/color required for COR review?

response: No. The specification of No. 26 galvanized sheet metal for flashing shall not be interpreted as a determination that the historic roofing was unfinished galvanized metal. Replacement roofing shall match the approved existing/historic visual appearance, including profile, dimensions, color, finish, seam/corrugation pattern, and related visible detailing. The Contractor shall submit proposed roofing material, color, and finish for COR approval prior to procurement or installation.

11. Bidder Question The replacement roofing system must maintain the historic visual appearance while incorporating durable modern materials. Existing rake and eave conditions lack metal edge flashing and leave sheathing/deck exposed. May standard flashing be added even if it modifies the existing appearance?

response: Eave/rake flashing or drip edge may be installed where necessary to provide a durable, weathertight roofing assembly, provided the flashing uses a minimal profile and a color/finish compatible with the approved roof system. Installation shall not remove or conceal character-defining trim. Proposed visible edge details shall be submitted to the COR for approval prior to installation.

12. Bidder Question Where roof planes intersect wall finishes, siding may need to be removed for proper termination. Should bidders include unit pricing to remove and replace siding where existing high-wall flashing is inadequate or cannot be reused, including allowance for damaged siding?

response: No. Removal and replacement of siding is not currently a requirement of the base contract. Where existing siding interferes with proper installation of the roofing or flashing, or where existing high-wall flashing is found to be inadequate or unsuitable for reuse, the Contractor shall notify the COR prior to disturbing the siding. The condition will be evaluated on a case-by-case basis, and any removal, replacement, or additional repair work shall only be performed when authorized by the Government. Existing siding and other historic fabric shall be retained and protected to the greatest extent practicable.

13. Bidder Question During the site visit, unprotected soffit/wall openings appeared to allow pest entry into attic spaces. Questions also concern rodent-contaminated insulation, pest screens/siding, exposed roof fasteners, attic access, and material lead times versus the 10-day period of performance.

response: Remediation of existing unprotected soffit and wall openings is not currently a requirement of the base contract. The Contractor shall notify the COR if openings, pest intrusion, deterioration, or other conditions are encountered that may affect installation or performance of the new roofing system. Such conditions will be evaluated on a case-by-case basis. Screening, siding replacement, closure of openings, or other corrective work shall only be performed when specifically authorized by the Government. The Contractor shall not alter or close existing openings without COR approval, as some openings may serve a ventilation or other functional purpose.

Exposed fasteners are acceptable only where appropriate to the approved roof system and historic appearance. Fasteners shall be manufacturer-approved exterior roofing fasteners, weather-sealed as required, installed in a uniform pattern, and color/finish matched where visible. The Contractor shall not introduce visually prominent exposed-fastener detailing where it would materially change the historic appearance without COR approval.

Permanent attic-access ladders are not required under the base contract. Insulation removal/replacement may be performed from the roof side during roofing operations. Any temporary access opening shall be properly restored as part of the roofing assembly.

The 10-day period is intended to represent the onsite construction duration and is subject to extension should that be necessary. The Contractor shall submit required product information promptly after award. The Government will coordinate the construction start date following approval/procurement of required materials. Once onsite work commences, the Contractor shall complete the work within the specified 10-day construction period unless modified by the Contracting Officer. Material lead times shall be identified in the Contractor’s proposed schedule and there is flexibility for period of performance.

Reference Framework Secretary of the Interior’s Standards for Rehabilitation (National Park Service): Preserve historic character and character-defining features; repair deteriorated historic features where practical; where replacement is necessary, replacement should be compatible with the historic feature in design, color, texture, and other visual qualities.

National Park Service roofing guidance: Roof form, materials, color, pattern, flashing, and related visible details may contribute to historic character. Roof work should both preserve those characteristics and provide a durable, watertight assembly.