Consolidated Request for Information for 36C25726B0004 NRM Replace 2nd floor roof

Solar Panels / Solar Equipment Please clarify the disposition and coordination requirements for the solar panels and associated equipment within the project roof areas. Specifically:

Q1a. What is the intended disposition of solar panels or related components that have not yet been installed?

A1a. Remove and dispose Q1b. For solar panels/components currently installed within the roof replacement limits, are they to be removed, stored, and reinstalled as part of this contract?

A1b. Remove and dispose Q1c. Please identify which party is responsible for removal, temporary storage/protection, reinstallation, reconnection, testing, and coordination of the solar equipment.

A1c. The Contractor is responsible.

Q1d. If any of this work is by others, please clarify the required coordination and sequencing responsibilities of the roofing contractor.

A1d. No work by others.

Existing Lightning Protection System Section 01 00 00 indicates removal, storage, replacement, and re-certification of the existing lightning protection system, with installation by a Certified/Listed installer in accordance with UL 96A or NFPA 780. Please clarify:

Q2a. The required extent of temporary removal/detachment and reinstallation of the existing lightning protection system.

A2a. The lighting protection system is existing to remain and shall be treated as noted by General notes A, B, G, I on MEP001.

Q2b. The required testing, inspection, certification, and documentation upon reinstallation.

A2b. Refer to Section 26 41 00, Facility Lightning Protection, for required inspection, certification, and documentation requirements.

Q2c. Whether a UL-listed/certified lightning protection contractor is required to perform all detachment and reset work, or only the final installation/certification.

A2c. A certified Lightning Protection Contractor is required to perform any work on the Lighting Protection System.

Q2d. Whether the VA has any designated coordination requirements, approved vendors, or existing system documentation that must be incorporated into the work.

A2d. No.

Vapor Barrier Product / Proposed Equivalent The contract documents indicate a cold-process vapor barrier as part of the new roofing assembly. The bidder proposes Mule-Hide F5 Air & Vapor Barrier, 40 mil, for this application.

Q3a. Please confirm whether Mule-Hide F5 Air & Vapor Barrier (40 mil) is acceptable as specified or as an approved equal. If it is not acceptable, Q3b. Please identify the required product/performance criteria and the required substitution submittal documentation for consideration prior to bid.

A3a./A3b. This Mulehide product would not be compatible and does not meet the performance of the Burmastic Composite Ply HT vapor barrier. The Mulehide product is only 40mils and the Burmastic Composite Ply HT is 60mils. The Mulehide product is self-adhering and the spec has the contractors adhering the vapor barrier in the cold applied adhesive.

Contract Document Identification and Order of Precedence Reference: SF 1442 identifies Project No. 671-24-004; the A-E drawings and technical specifications are identified as Project No. 671-21-143 and are dated September 3, 2024.

Q4a. Please confirm that the drawings and specifications identified as Project No. 671-21-143 are the intended contract documents for Solicitation 36C25726B0004 / Project 671-24-004.

A4a. Yes.

Q4b. Please also establish the order of precedence among the SF 1442/solicitation, Statement of Work, specifications, drawings, PCRA, ICRA, and any amendments where requirements conflict.

A4b. Specs supersede. ICRA & PCRA are standalone documents that must be adhered to individually.

Roofing System: SOW/Bid Item Language vs. TPO Specification Reference: Statement of Work Sections 3.0 and 4.0 and Section 01 00 00 refer to new "built-up roof plies" and a "cap sheet." Section 07 54 23 instead specifies an adhered 80-mil fleece-backed TPO roofing system over cover board and insulation.

Q5. Please confirm that the required new roofing system is the adhered 80-mil fleece-backed TPO system specified in Section 07 54 23 and that references to new built-up roof plies and cap sheet are not applicable to the new roof assembly.

A5. Confirmed Insulation R-Value and Cover Board Conflict Reference: Section 07 22 00 states insulation is to match existing with R-8 minimum and specifies 5/8-inch glass-mat water-resistant gypsum roof board. The Basis of Design Re-Roof Schedule states two insulation layers minimum to achieve R-25 and identifies 1/2-inch GP DensDeck Prime cover board.

Q6. Please identify the governing insulation thermal requirement and the governing cover-board thickness/product requirement for bidding. Specifically, confirm whether bidders are to provide R-8 or R-25 minimum insulation and 5/8-inch or 1/2-inch gypsum cover board.

A6. 1" PolyISO is around R6-R6.5, then the cover board is about .67, so if they are referencing R8 to that then that is correct to the spec instead of R25 Roofing Warranty Conflict Reference: Section 07 54 23 requires a 30-year manufacturer's roofing-system warranty, including specified puncture and hail provisions. The Basis of Design Re-Roof Schedule refers to a 20-year manufacturer's warranty and a 2-year contractor workmanship warranty.

Q7. Please confirm the warranty requirements that shall govern the bid, including the required manufacturer warranty term, contractor workmanship warranty term, and whether the puncture and 3-inch hail coverage stated in Section 07 54 23 is required.

A7. The installing roof contractor must be an approved applicator of the Tremco roofing system with documented paperwork. This would be a 30yr Tremco labor and material roof warranty with the spec requirements. The spec requirements with the 80mil TPO FB, Powerply Endure BIO Adhesive, and 5/8" cover board allow for this 30yr warranty.

Add Alternates, Scope Structure, and Bid Pricing Reference: The Statement of Work states that the full project scope includes the A-E base bid and all add-alternates and lists: Penthouse Roof System Replacement; Replace Equipment Curbs; Replace Existing Treated Nailer Blocking; and Replace Existing Metal Fascia. Drawing GI0.1 organizes these as Alternate No. 1 - Penthouse Roof System Replacement; Alternate No. 2 - Replace Equipment Curbs and Replace Existing Treated Nailer and Blocking; and Alternate No. 3 - Replace Existing Metal Fascia. Section 01 00 00 identifies Alternate No. 1 and Alternate No. 2 (roof curbs) but does not clearly identify the nailer/blocking or fascia alternate. The solicitation Price/Cost Schedule provides only Item 0001 and Item 0002 (bond cost).

Q8a. Please confirm the final alternate structure and scope.

A8a. The add-alternate scope is as indicated on Drawing GI0.1: Alternate No. 1 – Penthouse Roof System Replacement; Alternate No. 2 – Replace Equipment Curbs and Replace Existing Treated Nailer and Blocking; Alternate No. 3 – Replace Existing Metal Fascia.

Q8b.Please also clarify whether all add-alternate work is to be included in lump-sum Item 0001, or whether the Government will issue a revised bid schedule with separate alternate prices.

A8b. All add-alts are included.

Q8c.If alternates are to be separately priced, please state how the Government will evaluate them for award.

A8c. See A8b.

Base-Bid Roofing Limits and N.I.C. Areas Reference: Drawings GI0.3, AD1.0 through AD1.3, and A1.0 through A1.3 depict specific roof areas, phase limits, and areas marked N.I.C.

Q9. Please confirm that the base-bid roof replacement is limited to the designated second-floor roof replacement areas shown on the contract drawings and that areas expressly marked N.I.C. are excluded, except for work specifically necessary to tie the new system into adjacent existing construction.

A9. Confirmed. The Base Bid roof replacement limits are as indicated on the Contract Drawings. Areas identified as N.I.C. are excluded from the Base Bid.

Existing Roof Moisture Survey and Test Core Information Reference: Section 07 01 50.19, Paragraph 1.7.B, states that a roof moisture survey and test core analysis are available for Contractor reference.

Q10. Please issue the referenced roof moisture survey and test core analysis to all bidders before bid opening, including available information on existing roof assembly thicknesses and known wet/deteriorated areas.

A10. Existing roof test core information will be provided to bidders. A roof moisture survey is not available

Missing / Inapplicable Section 07 52 16.11 Reference Reference: Sections 07 01 50.19 and 07 60 00 reference Section 07 52 16.11, Cold-Applied SBS Modified Bituminous Membrane Roofing, including an installer-qualification requirement. Section 07 52 16.11 is not included in the project manual, and the specified new roof system is TPO.

Q11a. Please confirm that references to Section 07 52 16.11 are not applicable to this project, or issue the referenced section.

A11a. Clarifying that the specified cold applied adhesive is for the 80mil TPO FB roof system and is a 100% solids, VOC 0 g/L, 71% minimum BIO content adhesive.

Q11b. Please identify the intended installer qualification requirement for the TPO roofing work.

A11b. Installer must be an approved applicator of the entire TPO FB roof system assembly with proof of a certified applicator letter.

Missing Section 01 45 29 / Testing Laboratory Responsibility Reference: Sections 07 01 50.19 and 07 54 23 require field testing by the testing laboratory specified in Section 01 45 29, Testing Laboratory Services; Section 01 45 29 is not included in the project manual.

Q12a. Please issue Section 01 45 29 or clarify who is responsible for procuring and paying for the testing laboratory and required pull/adhesion testing.

A12a. The Contractor.

Q12b. Please identify which testing costs bidders must include in Item 0001.

A12b. None should be included for the Contractor.

Asbestos / Hazardous Materials Scope Reference: The project manual includes Section 02 82 11 Traditional Asbestos Abatement, while Section 07 01 50.19 states hazardous materials are not expected in the existing roofing system, known hazardous materials were removed before the work, and hazardous materials discovered during execution will be removed by the Government under a separate contract. The solicitation also requires pre-award evidence of general liability coverage without an asbestos exclusion.

Q13a. Please confirm whether any asbestos or other hazardous-material abatement is included in the bidder's base scope.

A13a. No.

Q13b. If no abatement is included, please confirm Section 02 82 11 is not a bid-price scope requirement unless activated by a future modification.

A13b. If asbestos is discovered during demo a modification will be pursued.

Q13c. Please also provide any existing asbestos/hazardous-material survey or clearance documentation applicable to the roof.

A13c. No asbestos data is currently available for the roof.

Governing ICRA Version, Patient Risk Category, and Required Precaution Level Reference: The technical specifications contain VHA-ICRA-2023-1.0, while the separately issued ICRA is VHA ICRA-1.3 (December 2024) and identifies the activity as Category D. The issued ICRA does not clearly establish, in the bidder-facing package, the final overall Patient Risk Category and resulting Level I-IV infection-control precautions for the roof work.

Q14. Please confirm which ICRA version governs. Please identify the final Overall Patient Risk Category and the required Infection Prevention and Control Precaution Level for this project, and clarify whether normal exterior roof demolition requires interior critical barriers, negative-air/HEPA systems, HVAC diffuser isolation, or other Level III/IV interior controls.

A14. Current version is VHA ICRA-1.4

Phase 1 / Phase 2 Sequencing and Turnover Reference: Drawing GI0.3 identifies Phase 1 and Phase 2, and the scheduling specification requires phase completion dates and as-built submissions after each completed phase.

Q15a. Please state the mandatory sequence between Phase 1 and Phase 2. Must Phase 1 be fully completed, inspected, and accepted before Phase 2 demolition begins, or may portions of the phases overlap?

A15a. Each phase shall be completed before moving to the next phase.

Q15b. Please identify any separate phase turnover, inspection, warranty, or acceptance milestones that bidders must include in the schedule.

A15b. Inspection and acceptance should be included.

Badging Timing Within the 270-Day Performance Period Reference: The Statement of Work states that the 270-calendar-day performance period includes 30 days for badging and separately advises allowing 21 business days for badges. Section 01 00 00 also requires advance notice for security/badging arrangements.

Q16a. Please confirm when the successful contractor may begin submitting personnel for badging after award and whether badging may be completed before Notice to Proceed.

A16a. Badging can begin after award.

Q16b.. Please also clarify the treatment of VA-caused badge-processing delays that prevent otherwise ready personnel from accessing the site.

A16b. This will be addressed on a case by case basis. However it’s imperative that you start the badging process as soon as possible to keep from having delays.

Required Site Utility Locate Before Roof Demolition Reference: Statement of Work Section 2.0 requires the Contractor to perform a site utility locate before demolishing any roof materials and states demolition cannot proceed until the locate is complete.

Q17a. Please define the required scope and acceptance criteria for this utility locate for elevated second-floor roof work.

A17a. Means & Methods. Provide circuit tracing per Electrical General Notes and confirm with VA for acceptance criteria.

Q17b. Please identify whether the requirement is limited to rooftop/concealed building utilities or also includes underground campus utilities, and provide any available utility/as-built information that will be furnished to the successful contractor.

A17b. Rooftop/concealed building only.

Existing Rooftop Electrical Conduit Scope Reference: Statement of Work Section 4.0 states that new conduit for existing wiring shall be provided in accordance with the A-E drawings/specifications. MEP001 states the project includes temporary support and raising of existing conduits as required for roof replacement/added insulation and requires maintaining/extending existing conductors and conduit as required.

Q18a. Please confirm that the intended base-bid electrical scope is to temporarily support, raise, maintain, and extend existing rooftop conduit/conductors as necessary to accommodate the new roof system, rather than wholesale replacement of all existing rooftop conduit.

Q18.Please identify any known conduit systems that require complete replacement.

A18a./A18b. - All existing conduit will be raised as required to accommodate the roof replacement scope as noted on MEP001 Electrical General Note A

Solar Collector / Steam Piping Demolition Scope Reference: Drawing AD1.0 includes General Notes for Removal of the Solar Collector Steam Piping System, and the Statement of Work requires as-built information for solar panel brackets.

Q19. Please confirm the complete scope for the existing solar collector/steam piping system, including which components are to be removed, salvaged, stored, disposed of, or reinstalled; whether the system is active; and any required shutdown, isolation, testing, or recommissioning procedures that bidders must carry.

A19. - This work is clearly outlined on plan. Refer to M102. Keyed note 1.

Stored-Material Progress Payments Reference: Section 01 32 16.15 expressly provides for monthly applications for payment and monthly progress payments based on the approved updated project schedule. The SOW also allows material storage in a VA-designated laydown area at the Contractor's risk.

Q20. Please confirm whether properly documented materials purchased specifically for this project may be included in monthly progress-payment applications before installation. If so, please identify requirements for (a) materials stored in the VA-designated laydown area and (b) approved off-site storage, including invoices, proof of payment, title/vesting, insurance, photographs, inventory logs, or other supporting documentation.

A20. No this is a firm fixed price (FFP) contract. Under an FFP structure, the Government does not make payment for stored materials, whether onsite or offsite, because payment is tied to measurable progress and accepted work. Even if materials are properly documented, delivered, or staged in a VA‑designated laydown area, they cannot be billed until they are installed and contribute to the percentage of work completed for that billing period. Similarly, off‑site stored materials are not eligible for early payment. Documentation such as invoices, proof of payment, title/vesting, insurance, photographs, or inventory logs is not required for progress‑payment purposes because stored materials are not reimbursable under this contract type. See the attached “VA Specific Special Contract Clause, Payments under Fixed-Price Construction Contracts” Project-Specific Retainage Administration Reference: Monthly progress payments are governed by Section 01 32 16.15 and the referenced fixed-price construction payment provisions.

Q21a. Please confirm whether the VA intends to apply any project-specific retainage percentage to satisfactory monthly progress payments.

A21a. No, Please see added clause VA Specific Special Contract Clause, Payments under Fixed-Price Construction Contracts Q21b. If so, please identify the percentage and conditions for reduction or release. If no project-specific percentage is established, please confirm retainage will be administered solely under the applicable FAR/VAAR payment clauses.

A21b. Please see VA Specific Special Contract Clause, Payments under Fixed-Price Construction Contracts Electronic Bid Bond / Offer Guarantee Submission Reference: The solicitation authorizes only emailed electronic PDF bids, requires a duly executed Bid Bond/Guarantee with the bid, and FAR 52.228-1 requires a bid guarantee of 20 percent of the bid price or $3,000,000, whichever is less.

Q22a. Please confirm the acceptable form of the bid guarantee for electronic submission. Specifically, will a scanned or digitally executed bid bond, surety power of attorney, and supporting documentation included in the single emailed bid PDF satisfy the requirement, or must an original hard-copy bond or other original instrument also be delivered?

A22a. Yes, that will satisfy the requirements.

Q22b. If an original is required, please state the delivery method and deadline.

A22b. No, original is not required.

ORCA / SAM Representations and Certifications Submission Reference: The Instructions to Offerors require registration in SAM and also direct bidders to submit a printout of the Online Representations and Certifications Application (ORCA).

Q23. Please confirm whether a current SAM.gov Representations and Certifications printout satisfies the solicitation's reference to an ORCA printout, and identify the exact document the Government expects in the bid PDF to avoid a nonresponsive submission.

A23. Yes that will suffice. ORCA (Online Representations and Certifications Application).

Limitations on Subcontracting Classification and Current Certification Database Reference: The solicitation's self-performance calculation distinguishes General Construction (85 percent limitation to non-qualifying firms) from Special Trade Contractors (75 percent limitation). The principal NAICS is 238160, Roofing Contractors. The form and clause also contain legacy references to VIP-listed firms, while the solicitation separately requires SBA VetCert status.

Q24a. Please confirm that this procurement is to be treated as a Special Trade Construction contract for purposes of VAAR 852.219-75 and the self-performance calculation.

A24a. Yes, special trade is correct. Please also see VAAR 852.219-73.

Q24b. Please also confirm that references to VIP-listed SDVOSB/VOSB firms are to be interpreted using the current SBA Veteran Small Business Certification (VetCert) database.

A24b. Correct Q24c. Please clarify how work subcontracted by a similarly situated certified SDVOSB roofing subcontractor is to be reported in the required calculation.

A24c. Work subcontracted by a certified SDVOSB subcontractor, even if that work is further subcontracted still counts towards the percentage threshold.

EMR Documentation Where No EMR Has Been Issued Reference: The Special Standard of Responsibility requires documentation showing an Experience Modification Rate (EMR) of 1.0 or less.

Q25. For an otherwise eligible bidder that has not been assigned an EMR by its workers' compensation rating bureau due to insufficient payroll or loss history, please identify what documentation or alternative evidence the Government will accept to satisfy this responsibility requirement.

A25. You will need memo from your insurance company explaining why there has not been an EMR rating assigned to your company.

Pre-Bid Site Visit Clarifications and Government-Issued Information Reference: The solicitation provides for an August 11, 2026 pre-bid site visit and states bidders are responsible for monitoring SAM.gov for amendments.

Q26. Please issue, by amendment or other official solicitation communication, any site-visit sign-in information, Government answers, clarifications, sketches, photographs authorized for bidding use, or other information provided or discussed at the site visit that is intended to be relied upon by all bidders.

A26. All requests for information, and visit sign in sheets will always be submitted via amendment through SAM.gov. Questions brought up at the site visit should have been submitted via RFI and response will be found amongst this document.

Lightweight Insulating Concrete Repair Quantity and Compensation Reference / Basis: Contract documents require patching, repairing, and infilling the existing lightweight insulating concrete substrate, including areas affected by removal of previous fasteners, before installation of the new roofing system.

Q27a. Please provide the quantity or allowance bidders are to carry for repair of the existing lightweight insulating concrete.

A27a. A roof scan has not been completed yet. We could do a roof nuclear scan if wanted. Otherwise, this will not be determined until roof project starts.

Q27b. If no defined quantity is available, please clarify whether repairs exceeding minor incidental patching will be compensated by unit price, allowance, or contract modification. Please also identify who will determine the extent of required substrate repair after tear-off.

A27b. A roof scan has not been completed yet. We could do a roof nuclear scan if wanted. Otherwise, this will not be determined until roof project starts.

Moisture in Existing Lightweight Insulating Concrete Reference / Basis: The roofing requirements require the existing substrate to be dry and suitable before installation of the new roofing system.

Q28a. If moisture is discovered within the existing lightweight insulating concrete after tear-off, please identify the required remediation procedure, including whether drying, venting, removal/replacement, or another method will be required.

A28a. Replace wet/damaged lightweight concrete areas with same thickness with PolyISO insulation adhered in specified bio based low rise foam adhesive. We need to confirm what % wet is considered wet Q28b. Please clarify how associated time and cost will be handled when concealed moisture could not reasonably be identified before demolition.

A28b. Depending on the circumstance it could be considered as a differing site condition and submittal of a Request for Equitable adjustment could be appropriate.

Existing Curb Raising vs. Alternate Curb Replacement Reference / Basis: The contract documents require rooftop units/equipment curbs to be raised as necessary to accommodate the new roof assembly, while curb replacement is identified as alternate work.

Q29a. Please clarify the scope boundary between base-bid raising/modification of existing curbs and alternate curb replacement.

A29a. No curbs will be raised or replaced. Raise unit as required to reroof.

Q29b. If an existing curb cannot practicably be raised, is deteriorated, or would remain below the required minimum flashing height after installation of the new roof assembly, please confirm whether replacement is included in the base bid, included only if the applicable alternate is awarded, or treated as additional work.

A29b. No curbs will be raised or replaced. Raise unit as required to reroof.

Roofing Work Hours, Adhesive Odors, and Air-Intake Restrictions Reference / Basis: The project is within an occupied 24/7 medical facility and the contract documents contain noise, vibration, infection-control, and operational restrictions.

Q30a Please confirm whether normal tear-off, low-rise foam/adhesive application, membrane installation, and heat-welding operations may be performed during the stated normal daytime work hours.

A30a. Yes.

Q30b. Please identify any roof areas expected to require night/weekend work and any restrictions or required controls for adhesive/roofing odors near active outside-air intakes, including temporary intake protection, shutdowns, or infection-control measures bidders must include.

A30b. No night/weekend work currently expect with the exception of possible crane lifts.

Crane and Hoisting Restrictions Reference / Basis: Roof work may require material hoisting and temporary raising/handling of rooftop equipment, and project logistics interact with occupied hospital operations.

Q31a. Please identify approved or anticipated crane setup locations, lift windows, roadway/ambulance-route restrictions, and any restrictions associated with emergency operations or other facility activities.

A31a. Crane lifts will either be from the loading dock or front parking lot.

Q31b. Please also identify any known rooftop equipment or penthouse work that will require a coordinated crane pick rather than conventional temporary support/raising.

A31b. Means & Methods Hospital Exhaust, Steam Vent, and Utility Shutdown Windows Reference / Basis: Roof flashing work occurs at or near active hospital exhaust, biohazard exhaust, steam vents, and other rooftop services. The contract documents establish advance-notice requirements for service interruptions.

Q32a. Please clarify the anticipated process and realistic availability of shutdown/isolation windows for active exhaust, biohazard exhaust, steam, electrical, and other systems that must be temporarily interrupted or made safe to complete flashing and roofing work.

Q32b. Please identify any systems that cannot be shut down during normal working hours so bidders can account for phasing and productivity impacts.

A32a./A32b. -Means Methods. Coordination with General Contractor Construction Schedule and VA Operations is required

Lightning Protection Re-Certification and Replacement Components Reference / Basis: Section 26 41 00 requires removal, storage, reinstallation, and certification of the existing lightning-protection system, including UL/NFPA compliance requirements.

Q33a. Please provide the current certification/Master Label status of the existing lightning-protection system, if available.

A33a. None available.

Q33b. Please clarify responsibility and compensation for replacement of existing components found damaged, missing, or noncompliant with current certification requirements after removal. Please also confirm that the Government expects the reinstalled system, using reusable existing components where compliant, to obtain the required final certification/Master Label.

A33b. Contractor is responsible.

Roof Drain Scope and Leak Testing Reference / Basis: The contract documents require preparation/flashing of existing roof drains and leak testing associated with the roofing work.

Q34a. Please confirm the base-bid plumbing scope at each roof drain, including whether existing drain bodies, strainers, clamp rings, or other drain components are to be reused or replaced and whether any downstream drain piping work is included.

Q34b. Please also identify the required preconstruction and post-construction drain/leak-testing protocol and responsibility for correcting pre-existing drain or piping deficiencies discovered during testing.

A34a./A34b. - Refer to MEP101 Keyed Notes 1,2, & 4, as well as MEP102 Plumbing Keyed Notes 1-3. Provide leak test for each pipe receiving a new roof drain

Solar Collector Steam Piping - Potential ACM Reference / Basis: Demolition requirements address removal of the existing solar collector steam piping system, and the project documents include asbestos-abatement requirements.

Q35a. Please confirm whether the solar collector steam piping and associated insulation/mastics have been sampled for asbestos-containing material and provide any applicable test results.

A35a. They have not. They were built/installed in 2001.

Q35b. If unforeseen ACM is encountered on this system, please clarify who will perform the abatement and how resulting additional cost and schedule impacts will be handled.

A35b. Contractor. Modification.

Removed Equipment and Materials to be Salvaged to VA Reference / Basis: Contract notes identify certain removed items for return to the VA and provide the Government rights regarding disposition of some removed equipment/materials.

Q36. Please provide or confirm a consolidated list of removed equipment and materials that must be salvaged, protected, and returned to the VA rather than disposed of by the Contractor, including guardrails, rubber mats, solar-related components, and any MEP equipment subject to Government retention.

Q36a. List of items should be minimal but the Contractor shall confirm with the COR during the Pre-Con Walk.

Q37. Plan page AD1.0 shows existing lightweight concrete decks at all phases of the roof replacement project. The plans and specifications have discrepancy's as to what the existing deck type is. Is the existing structural deck lightweight as listed or is it structural concrete?

A37. Attached image of core composition. Current deck is lightweight concrete over metal pan, slope is in the lightweight, refer to as built drawings to confirm all items, insulation thickness is in specification.

Q38. The statement of work paragraph 4.0 states to install tapered insulation. Is the slope in the existing roof achieved by tapered insulation or is it achieved by a sloped structure?

A38. Attached image of core composition. Current deck is lightweight concrete over metal pan, slope is in the lightweight, refer to as built drawings to confirm all items, insulation thickness is in specification.

Q39. Is the requirement to install additional tapered insulation to increase the slope of the existing sloped structure?

A39. Attached image of core composition. Current deck is lightweight concrete over metal pan, slope is in the lightweight, refer to as built drawings to confirm all items, insulation thickness is in specification.

Q40. There are discrepancies between the scope of work, drawings, and specifications regarding the r- value of the new insulation. Is the intent of the scope of work to match the existing insulation thickness?

A40. Attached image of core composition. Current deck is lightweight concrete over metal pan, slope is in the lightweight, refer to as built drawings to confirm all items, insulation thickness is in specification.

Q41. Drawings call for alternate 1 pricing, but the price/cost schedule does not reflect. Are we bidding any alternates or will all alternates listed in the drawings be part of the base bid?

A41. All alternates are part of the base bid.

Q42. Will this project require an SSHO and a Site Superintendent or can the Site Super fill the roles if they possess all the required qualifications?

A42. Must be separate.

Q43. Will we be able to use the parking lot highlighted in red to conduct evening and weekend crane lifts? See image below.

A43. Very likely.

Q44. Is there any water running through the solar steam piping system or has it been abandoned?

A44. - Removal and dispose of as stated on MEP102 Electrical Keyed Notes 1 Q45. What is the VA’s preferred lightning protection conductor material? Aluminum or copper?

A45. Match existing.

Q46. Will a laydown area be provided for this project and where will it be located?

A46. Yes. TBD.

Q47. Will there be any after hours or weekend work only while replacing the roof over the OR suites?

A47. Weekend work MAY be required for certain parts of the work, but not largely anticipated.

Q48. Will any of the HVAC units need to be disconnected and what areas do they service? See pics below.

A48. - This scope is clearly noted on MEP101 Electrical Keyed Notes 1 & 2.

Q49. Will the sign-in sheet from site visit be available in addendum?

A49. Yes, there will be a posted amendment with the sign in sheet from the site visit.

Q50. Can a superintendent be a triple hat to cover the requirements of SSHO and QA/QC?

A50. No.

Q51. Please confirm if tax should be included in our proposal?

A51. Please see the solicitation V.T.C.A Tax Code Q52. Please provide the latest wage determination for this project’s county.

A52. Please sese the solicitation for Wage Determination starting on page 72.

Q53. Please confirm if the current prevailing wages will be consistent for the life of the project with no escalation?

A53. Correct. This will be a firm fixed price award.

Q54. Please confirm the current design documents meet current VA TIL guidelines.

A54.At the time of design the documents were current and meeting the VA TIL guidelines. If any changes have occurred we will need a change order back to the AE for updated design Q55. Please confirm any minority business participation requirements.

A55. This requirement is an SDVOSB set-aside.

Q56. Please confirm the roofing system to be provided. Is the new roof an 80-mil fleece-backed TPO system per Section 07 54 23, or a built-up roofing system with cap sheet as described in the SOW and Section 01 00 00?

A56. Confirmed 80mil TPO FB.

Q57. Please identify the known asbestos-containing roofing or associated materials within the limits of this project and provide the applicable hazardous-material survey/report, including sampling locations and quantities.

A57. There is currently no asbestos information for the roof.

Q58. Please clarify the exact quantity of roof curb replacement for Alternate No. 2.

A58. No complete roof curb replacements are anticipated. Replace existing treated wood curb/nailer/blocking where damaged or deteriorated, as indicated in the Contract Documents.

Q59. Please confirm whether all existing plumbing vents, pipes, conduits, and other penetrations are to be extended as necessary to maintain manufacturer-required flashing heights above the new roof.

A59. - Existing piping & conduit is to be raised and modified as required to accommodate the re-roof scope as noted on plans per Electrical General Note A and Plumbing General Note C, and as noted on plan set.

Q60. Please identify the Government-approved area available for contractor material storage, equipment storage, and laydown for the duration of the project.

A60. TBD

Q61. Will the contractor be permitted to place CONEX/storage containers or job boxes on VA property A61. Only in designated laydown area. TBD.

Q62. Will the VA permit the contractor to utilize existing VA electrical power for construction activities?

A62. No.

Q63. Will the contractor be permitted to utilize VA domestic water for construction activities, cleanup, dust suppression, and other project requirements.

A63. No.

Q64. Will contractors and subcontractor personnel be permitted to use existing VA restroom facilities during construction?

A64. Designated areas will be identified.

Q65. The solicitation, Section A.3, Price/Cost, appears to provide for a single lumpsum “Job” price. However, Specification Section 01 00 00, Paragraph 1.3, Statement of Bid, identifies two alternates: Alternate No. 1 – Penthouse Roof and Alternate No. 2 – Replace Roof Curbs. Please clarify how the Government would like the bid pricing to be structured for this IFB. Should the two alternates be priced separately from the base bid?

A65. Everything included in the base bid.

Q66. The solicitation does not identify asbestos as being present; however, Specification Section 02 82 11, Traditional Asbestos Abatement, is included in the contract documents. Is asbestos known or anticipated to be present on the roof(s)? Please clarify whether asbestos abatement should be included in the contractor’s scope of work.

A66. Not known to be present. The language is there in the event we discover asbestos during demo.

Q67. The solicitation does not identify the required Infection Control Assessment levels; however, the specifications reference Infection Control Risk requirements. Please clarify the Infection Control Assessment level(s) required for this project so the appropriate requirements can be included in the bid.

A67. Level D.III Q68. Can you please clarify that these are the steps that need to be used:

1.Remove the old roof and insulation 2.Use adhesive to glue down 5/8 coverboard (R-8)

3. Adhere 80 mil fleece back TPO A68. Burmastic Composite Ply HT adhered in Powerply Endure BIO Adhesive as the vapor barrier, Adhere PolyISO in Tremco Low Rise Foam Green Adhesive, Adhere 5/8" Gypsum cover board in Tremco Low Rise Foam Green Adhesive, Adhere Tremco Tremco 80mil TPO FB in Powerply Endure BIO Adhesive.

Q69. Is the Taper in the Lightweight or do we add Taper insulation to achieve proper slope desired by the engineer?

A69. Based on the Tremco BOD roof system, please confirm whether tapered insulation is required or whether the existing lightweight insulating concrete provides the required slope.

Q70. Is there a designated staging area where we can set up?

A70. TBD

Q71. Do we have an area where we can set up a crane? Can we use multiple cranes or is the available area limited due to the phases required for completing the roof sections?

A71. Area is limited.

Q72. Can we use multiple disposal shoots to get the material off the roof quicker during the demo phase.

A72. Depending on desired locations.

Q73. We want to confirm that the adhesive for the TPO FB is a bio-based adhesive, 100% solids minimum, and VOC 0g/L".

A73. Please confirm. Q68 response already identifies Powerply Endure BIO Adhesive for the 80-mil TPO FB, so this should be a quick confirmation.

Q74. The horizontal concrete at the windows, is sealing those part of the scope?

A74. Sealing of the horizontal concrete surface is not part of the scope. Provide new flashing and sealant as indicated on the Contract Drawings.

Q75. Are there any areas of the roof we are tearing off where patients are located underneath? The ICRA sheets identify some affected areas; could you please be more specific regarding patient care?

A75. Yes, the entire 2nd floor.

Q76. Is there a specific building or construction area identified that requires construction fencing, or are the areas to be fenced off at the discretion of the Prime, provided they follow OSHA standards?

A76. No.

Q77. Are we limited to completing work by phases or can we work on multiple phases simultaneously for time efficiency? For example can we work over the gift shop/canteen area at the same time as the main area identified in the drawings?

A77. Multiple phases may be possible, but must be coordinated and approved prior to work Q78a. Can you give me the sizes and quantities of the temp disconnects that you are expecting for the scope. There are disconnects not labled in the drawings and multiple sizes etc.

Q78b. Can you be more specific?

A78a /A78b. -Means Methods. Bidder shall provide temporary disconnects as required to accommodate the scope of work delineated in MEP101 Keyed note 1. Coordination with General Contractor Construction Schedule and VA Operations is required.

Q79. Are crane operation hours the same as work hours mentioned in the SOW or are the limited days hours etc.?

A79. Crane operations will need to be coordinate and well more than likely take place only on weekends due to high traffic volume during the week.

Q80. Is the existing concrete roof deck structurally sloped to the roof drains?

A80. Existing roof construction varies by area due to different building additions. Available existing drawings indicate roof slope is generally developed within the lightweight concrete and/or tapered roofing assembly above the structural deck. Where lightweight concrete is present, it is indicated to slope to the roof drains. Existing as-built/record drawings are available for reference. Contractor shall refer to the applicable demolition plans, keynotes, details, and available existing drawings, and field verify existing conditions. Core sampling may be performed to confirm existing conditions.

Q81. If the existing deck is structurally sloped, may uniform-thickness polyisocyanurate (ISO) insulation be used throughout the roof system, with tapered insulation limited to localized drainage corrections, crickets, saddles, and sumps?

A81. Yes

Q82. If the existing deck is not structurally sloped, is the contractor required to provide a complete tapered insulation system at the specified minimum slope of 1/4 inch per foot to the roof drains?

A82. The lightweight concrete deck is sloped to the drains. Contractors can confirm with a core sample.

Q83. If a complete tapered insulation system is required, please confirm the required minimum insulation thickness at the drains/low points and the required total R-value so bidders can accurately determine the maximum insulation build-up and associated pricing.

A83. The lightweight concrete deck is sloped to the drains. Contractors can confirm with a core sample.

Q84. Plans and Specs are inconsistent on the warranty. Does the roof require a 20 or 30 year warranty.

A84. The installing roof contractor must be an approved applicator of the Tremco roofing system with documented paperwork. This would be a 30yr Tremco labor and material roof warranty with the spec requirements. The spec requirements with the 80mil TPO FB, Powerply Endure BIO Adhesive, and 5/8" cover board allow for this 30yr warranty.

Q85. Does it require 1/2“or 5/8” cover board? Hail Rider?

A85a. Burmastic Composite Ply HT adhered in Powerply Endure BIO Adhesive as the vapor barrier, Adhere PolyISO in Tremco Low Rise Foam Green Adhesive, Adhere 5/8" Gypsum cover board in Tremco Low Rise Foam Green Adhesive, Adhere Tremco Tremco 80mil TPO FB in Powerply Endure BIO Adhesive.

A85b. Yes. The 30yr warranty must include the hail requirements in the specification

Q86. What is the actual wind uplift requirement?

A86. Specification says 90mph.

Q87. Can we substitute the base sheet with a nail down base sheet?

A87. No. Base sheet must be minimum 60mils thick, 38lbs, 190 lbf/in tensile strength, 260 lbf tear strength and adhered in the specified cold applied adhesive that is 100% solids, 0 g/L VOC, 71% minimum BIO content, 150% elongation.

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