Amendment 0003_Attachment I. RFI Responses.pdf

RFI Questions & Answers

Project Name: Replace Roof and Install Lightning Protection, VA Loma Linda Solicitation Number: 36C26224B0001

VA Responses provided in red bold font (Example: RFI Questions & Answers)

Question 1

Q: Does the VA expect that any Hazardous Materials (ACM, LBP) will be encountered during the prosecution of the work?

A: No. Roof was completed in the 1990’s. No Asbestos-Containing Materials (ACM) or Lead-Based Paint (LBP) is expected.

Question 2

Q: Will the VA provide a current HAZMAT Survey for the areas of work involved with this project?

A: No HAZMAT Survey has been completed. Please see the following attachment:

Amendment 0003_Attachment K. Roof Analysis Report

Question 3

Q: Can you please provide the Statement of Work (Attachment A), and the Electrical Sheets (Lightning Protection)?

A: Please refer to Solicitation Notice “36C26224B0001_1” in the Contract Opportunities section on SAM.gov.

You may view and download the solicitation, all attachments, and any impending solicitation amendments through the Contract Opportunities section on SAM.gov.

Note: The Electrical Drawings was provided as an attachment to Solicitation Amendment 36C26224B0001 0001 (SF30), which was posted on SAM.gov on January 29, 2024.

Question 4

Q: Please provide the Electrical Drawings.

A: The Electrical Drawings was provided as an attachment to Solicitation Amendment 36C26224B0001 0001 (SF30), which was posted on SAM.gov on January 29, 2024.

Question 5

Q: Could we assign subcontractors to various phases of the project?

A: Yes. The General Contractor is responsible for all work and warranties.

Question 6 Q: Do the Bond requirements follow the company for the Vendor of installation?

A: The bond requirements apply to the bidder. Per page 12 of the solicitation, Section 2.5, 52.228-1 BID GUARANTEE (SEP 1996), “the bidder shall furnish a bid guarantee in the form of a firm commitment, e.g., bid bond supported by good and sufficient surety or sureties acceptable to the Government, postal money order, certified check, cashier's check, irrevocable letter of credit, or, under Treasury Department regulations, certain bonds or notes of the United States.” Additionally, per the INFORMATION REGARDING BIDDING MATERIAL, BID GUARANTEE AND BONDS section found on page 6 of the solicitation, “the bidder to whom award is made will be required to furnish two (2) bonds, a Payment Bond, standard form (SF) 25A, and a Performance Bond, SF 25, each in the penal sum one hundred (100) percent of the award amount.”

Question 7

Q: Drawing AD101 Key Note #4 states “Existing roof drains and overflow drains to be removed and replaced. See plumbing drawings/specifications.” Please provide plumbing drawings and specifications.

A: There are no plumbing drawings since the roof drain and overflow drains are detailed on the architectural sheets. The existing roof drains are to remain and will receive new strainers as part of this project.

Question 8

Q: Drawing AD101 Keynote #9 states, “Existing solar equipment to be removed completely by VA. All solar equipment is gravity mounted onto roof. Remove all solar panels, supports, brackets, disconnects, junction boxes, other associated equipment. . .” The second sentence sounds like direction to the contractor which contradicts solar equipment to be removed completely by VA. Please clarify who is to remove solar equipment from the roof.

A: Keynote should read:

9. EXISTING SOLAR EQUIPMENT TO BE REMOVED COMPLETELY. ALL SOLAR EQUIPMENT IS GRAVITY MOUNTED ONTO ROOF, REMOVE ALL SOLAR PANELS, SUPPORTS, BRACKETS, DISCONNNECTS, JUNCTION BOXES, OTHER ASSOCIATED EQUIPMENT, ALL CONDUIT BACK TO ELECTRICAL PANEL (DO NOT REMOVE ELECTRICAL PANELS). VA WILL NOT BE RESPONSIBLE FOR REMOVAL OF ANY SOLAR EQUIPMENT

Panels areas in red have been removed by others.

Question 9 Q: Drawing AD101 Keynote #34 “Remove and replace existing flashing at penthouse wall with split face concrete and other walls panel wall type.” Please provide specifications for split face concrete and detail for installation.

A: There are two types, one is split faced CMU and the other is a flat faced wall type with a textured finish.

These are shown in the photos of the Contract documents. The details are shown and cover the different situations. Please refer to the original solicitation, Attachment C. Arch Drawings, sheets AE401 through AE403 and sheets AE501 and AE502.

Question 10

Q: Drawing AD101 Keynote #34 “Remove and replace existing flashing at penthouse wall with split face concrete and other walls panel wall type.” Please clarify what “other walls panel wall type” means and provide specifications and detail for installation.

A: There are two types, one is split faced CMU and the other is a flat faced wall type with a textured finish.

These are shown in the photos of the Contract documents. The details are shown and cover the different situations. Please refer to the original solicitation, Attachment C. Arch Drawings, sheets AE401 through AE403 and Sheets AE501 and AE502.

Question 11

Q: Can the photos shown on AE401, AE402 and AE 403 be re-issued in color?

A: Please see the following attachment:

Question 12

Q: Will an alternate roofing membrane system be considered for this project, if systems meet EO, FAR, Net-Zero, Federal Sustainability Goals, DOE, EPA, ASHRAE, and CRRC requirements?

Reason: SOW B.2 “replace existing PVC with new TPO”. Removing a PVC membrane will be classified as a re-roof, which requires meeting the new building codes. If the roof is overlayed/recovered with liquid cold applied elastomeric membrane CRRC rated products, it will not need to be new building code, because it’s a maintenance/restoration project. If the PVC is removed, then additional iso-board will need to be installed, requiring all the drains, scuppers, and equipment curbs to be raised. This will add significant labor/product costs to the project, not meet EO 14057 and FAR 36.104 policy for Co2 Reduction, Construction Waste Reduction, and Cost Savings.

Reference: FAR 36.104 Policy: Agencies shall implement high-performance sustainable building design, construction, renovation, repair, commissioning, operation and maintenance, management, and deconstruction practices so as to—Ensure that all new construction, major renovation, or repair and alteration of Federal buildings complies with the Guiding Principles for Federal Leadership in High-Performance and Sustainable Buildings.

A: Per the current scope of work, this is to be a complete reroof of the building. Testing performed prior to design did show areas with water infiltration and damaged insulation. It has been determined a full reroof was the best solution and would be the best value. TPO is the roof system requested by the VA at this facility.

Question 13 Q: Does the Loma Linda VA follow federal guidelines for construction operations and air quality?

Reason: Full roof tear-off and demolition will add significant dust/debris to the air at this hospital location.

Negating the demolition phase and PVC removal will eliminate the dust concerns and added labor costs. Removing a membrane is highly susceptible to moisture damage to the structural members and interior building.

Reference: Guiding Principles for Sustainable Federal Buildings Section 4.6. Indoor Air Quality during Construction and Operations Implement necessary policies and protocols to prevent moisture damage to building materials and protect indoor air quality during renovations, repairs, and construction. Ensure indoor air quality procedures are in place that protect the air quality for occupants of the building during operations.

Reference: VA Sustainability Design Manual, Section 6.0 Indoor Air Quality

Reference: FAR 36.104 Policy, Ensure Pollution Prevention

A: Yes, to the extent practicable.

Question 14

Q: Does the Loma Linda VA follow federal sustainability practices and reduce construction waste on projects and divert from landfills?

Reason: Removing the PVC membrane and iso-board will add 100K’s of pounds of construction waste to landfills.

VA Design Manual states: maximize waste diversion, maintain waste reduction, and pursue cost-effective minimization. This can be done by using Roofing Industry standards for roof overlay/re-cover with liquid systems holding 20-yr Warranties and following the National Roofing Contractors Association Roofing Manual.

Reference: VA Sustainability Design Manual Section 5.6. Solid Waste Management “Pursue cost-effective waste minimization during the construction and renovation phase of the building”

Reference: VA Sustainability Design Manual, Section 7.3 Solid Waste Diversion

Reference: FAR 36.104 Policy, Ensure pollution prevention and eliminate waste by diverting at least 50 percent of construction and demolition materials and debris by the end of Fiscal Year 2015.

Note: EO 14057 states 75% reduction of construction waste by 2030. (No waste with Liquid applied systems) Note: 150K sf deck-PVC/polyiso-board waste 166lbs/sq. x 1,500sq = 249,000 pounds of construction waste.

Question 15

Q: Will Loma Linda VA follow ASHRAE 90.1 guidelines for cool roof systems in Climate Zone 3B?

Reference: VA Sustainable Design Standards, 4.1.2 Baseline Standard—Renovations--Major renovation projects shall be designed to reduce energy use—ASHRAE 90.1. (FAR, UFC, DOE, EPA—Net-Zero Goals)

Reference: Cool Roof Rating Council (CRRC), Energy Efficient Products, ANSI/CRRC Standard 100 The DOE Energy Star program for roofing products ended June 2022 and no roof products are rated.

A: The specified design follows VA guidelines for roofing system replacement. VA has followed the International Energy Conservation Code (IECC) requirements for this climate zone and the TPO roof system complies cool roof requirements.

Question 16 Q: The SOW states normal hours of operation, does this mean, employees and customers are present under roof construction zones, during PVC removal, and overhead crane operations.

Reason: SOW, B.7 HOURS OF COVERAGE: A. “Normal hours of operation are Monday through Friday from 7:00 am to 4:00 pm PST time”. If work is being done on roof decks and removing membranes with overhead heavy equipment, according to the VA manuals, those roof sections should be closed to normal operations for safety. If alternate roof membranes such as liquid coatings are allowed for this project, no crane/roof removal is required.

A: Demolition and reroofing work can be achieved during normal working hours. The General Contractor will schedule all crane lifts after hours with the COR and submit a Crane Lift Plan to be approved by VA Safety.

Question 17

Q: Will modifications to the DB specifications be considered prior to award if roof membrane options show significant cost/energy savings that meet: VA Design guides, EO, FAR, Net-Zero Goals and Federal Sustainability Goals?

Reason: SOW, B.15 MODIFICATIONS: “Modifications for this project shall be submitted to the assigned COR who shall then submit a formal request to the Contracting Officer (CO)”. Alternate cool roof systems have been approved by the Department of VA, which met the design requirements: Augusta VA, planned to remove Mod-Bit and install TPO, 195K sf deck—Design Spec, changed to liquid applied membrane. Viera VA, planned to remove Mod-Bit re-install Mod-Bit 175K sf deck—changed to apply Cool Roof liquid membrane, saves a 1/3 of construction costs: no re-roof, no demolition, construction waste, reduced Co2 emissions, Energy Savings, and Cost Savings.

A: Build per plans and specifications.

Question 18

Q: Attachment B Project Specifications, Section 01 00 00, Part I General, 1.4, Construction Security Requirements, D. Key Control, 2.: What cores are being removed, type of system, keyway, and is there existing key/core plan for this project site?

A: Key and core will be issued from VA Police through VA COR.

Question 19

Q: Attachment B Project Specifications, Section 01 00 00, Part 1 General, 1.5 OPERATIONS AND STORAGE AREAS, H. Phasing, 1. “The Medical Center must maintain its operation 24 hours a day 7 days a week”.

If demolition of the roof membrane and removal of PVC is part of the specification. How are these areas still open with overhead construction, won’t the VA close those roof sections during all overhead construction demolition operations?

A: The General Contractor will schedule crane lifts after hours with the COR and submit a Crane Lift Plan to be approved by VA Safety.

Question 20

Q: Attachment B Project Specifications, Section 01 00 00, Part 1 General, 1.5 OPERATIONS AND STORAGE AREAS, L, Abandoned Lines. Does the VA have all abandoned items marked off for this project?

Is there a list: type, size, equipment, and location of all abandoned items?

A: VA will identify all items to be abandoned prior to demolition of each area.

Question 21 Q: Attachment B Project Specifications, Section 01 00 00, Part 1 General, 1.11 WARRANTY MANAGEMENT, F, Warranty Tags. Does the COR require Warranty Signage as opposed to tagging, to be posted at Fixed Ladders or approved roof access doors? Does the VA have a warranty sign standard for Roof Warranties?

A: Tagging is required. Please refer to the original solicitation, Attachment B. Project Specifications _Roof Replacement and Lightning Protection_Revised. See Attachment B, Section 01 00 00, Part 1 General, 1.11 WARRANTY MANAGEMENT, F, Warranty Tags.

Question 22

Q: Attachment B Project Specifications, Section 01 00 00, Part 1 General, 1.16 AVAILABILITY AND USE OF UTILITY SERVICES, C, “Contractor shall install meters at Contractor's expense and furnish the Loma Linda a monthly record of the Contractor's usage of electricity as hereinafter specified”. If none of the items listed in section E. 1. are utilized on the project, does that mean the contractor does not have to install meters?

A: Contractor will not be required to install metering equipment.

Question 23

Q: Attachment B Project Specifications, Section 01 35 26, Safety Requirements, Part 1 General,

1.16 Fall Protection. Will the VA be providing certified Fall Protection anchor points on the roof deck, or will the contractor be installing permanent anchor points on the roof deck as part of the bid submittal?

A: Contractor will be responsible for all fall protection and fall protection plan to be approved by VA Safety.

Question 24

Q: Attachment B Project Specifications, Section 07 01 50, Preparation for Re-Roof, Part 1 General, 1.7 Field Conditions, B. “Existing roof available information”, (Roof moisture survey and Test cores analysis) Is this information made available now, showing sections of the roof with known site conditions, analysis, surveys?

Note: Section 07 54 23, Part 1 General, Section 1.3 K. references Energy Star Program for Roofing. There is no EPA/DOE Energy Star Program for Roofing Products, the program ended June 2022.

Question 25

Q: Is the VA planning to reschedule the site walk currently scheduled for Friday 2/2/24 @ 1pm?

A: No, the site visit will not be rescheduled.

Question 26

Q: Is there an alternative site visit available?

A: There will be no alternative site visit.

Question 27 Q: Specification section 01 35 26 in reference to SSHO contradicts itself. In one sentence it states that the SSHO can act as Superintendent and then states that they can only be the SSHO. Please confirm that the SSHO can be the Superintendent/QC Manager.

A: Please refer to the original solicitation, Attachment B. Project Specifications _Roof Replacement and Lightning Protection_Revised. Per Attachment B, Para 1.7 of Spec 01 35 26, SSHO has to be a separate qualified individual from the Prime Contractor’s Superintendent and/or Quality Control Manager.

Question 28

Q: I attended the walk at Loma Linda Hospital and was given your Email so we can get core pics from you. If possible if you can send me some pictures.

Question 29

Q: We would like to request the following:

1) Roof Core Info

2) Staging for Dumpsters for Roofing debris Off Loading

A:

1) Roof Core Info - Please see the following attachment:

2) Staging for Dumpsters for Roofing debris Off Loading - Adequate laydown area for (dumpsters/crane/equipment) will be assigned by COR prior to mobilization.

Question 30

Q: Specification Section 01 00 00, Part 1.22 requires the Contractor to hire a Commercial Photographer to document this project. Will the VA clarify if the Contractor must hire a Commercial Photographer, or will in-house photographs be acceptable?

A: In-house photographs can be uploaded on the daily log.

Question 31

Q: Will the VA clarify whether the Contractors Site Superintendent, if duly qualified, may also serve in the roles of SSHO and CQC or will a separate individual be required for either of those two roles on this project?

A: Superintendent can serve as CQC but not SSHO. Please refer to the original solicitation, Attachment B. Project Specifications _Roof Replacement and Lightning Protection_Revised. Per Attachment B, Paragraph 1.7 of Spec 01 35 26, SSHO has to be a separate qualified individual from the Prime Contractor’s Superintendent and/or Quality Control Manager.

Question 32 Q: Specification Section 01 35 26, Part 1.13 requires TB testing for all worksite personnel prior to placement on the job. Will the VA clarify if this will be a requirement for this project since the work will take place outside the patient areas?

A: This is a requirement.

Question 33

Q: Specification Section 01 45 00, Part 3.4-A & D requires the Contractor to retain additional specialized individuals who must be present at all times during work in these individual’s specific area of responsibility. For this project, this requirement would mean the Contractor must retain an Architect (or Const. Professional with 5 years’ experience), an Electrical Engineer, and an Environmental Engineer, all to be present onsite during activities in their respective areas of responsibility. Since this will add significantly large costs to this project, will the VA clarify whether this will be a requirement for this project?

A: This is a requirement- A single person can cover more than one area provided that the single person is qualified to perform QC activities in each designated area and that workload allows. Please refer to the original solicitation, Attachment B. Project Specifications _Roof Replacement and Lightning Protection_Revised. Please see Attachment B, Paragraph 3.4 C of Spec 01 45 00, EXPERIENCE MATRIX.

Question 34

Q: The Site Visit revealed there are multiple satellite dishes present on the roof. Sheet AD101, Keynote #24 states to remove the Antenna/satellite dish at one depicted location. Will the VA clarify whether the rest of the satellite dishes are to remain or be removed?

A: Dishes not noted will remain.

Question 35

Q: Will the VA clarify if any of the satellite dishes or antennas not depicted on the drawings are currently in service? Will the VA clarify if any radiation dangers exist with any of the remaining antenna equipment on the roof? Has the VA performed any testing of possible radiation conditions on the rooftops?

A: All dishes and antennas should be assumed to be in operation. Some hazardous equipment exists. All antennas should be brought to attention of VA COR before work begins in each area to ensure safe work is conducted.

Question 36

Q: Was told to contact you for more information on the roof cores since we weren’t allowed to core roof at walk.

Maybe you have more information on what exactly is existing roof and what the depth of iso.

A: The existing roof membrane is a PVC roof system, the insulation layers that were cored by our testing group, measured between 4" and 4 1/2" deep. The new roof will need to comply with the current code R-values indicated and required per the current code if there have been changes. Please also see the following attachment:

Question 37 Q: The solicitation for bids states that the procurement is "100% set aside for service-disabled veteran-owned small businesses (SDVOSB) in accordance with Public Law 109-461, 38 USC § 8127 to be eligible to participate." It is our understanding that the SDVOSB program requires that the soliciting business be at least 51% owned and controlled by one or more service-disabled veterans. Please confirm if this bidding eligibility requirement will be strictly enforced.

A: Per the BASIS FOR AWARD section found on page 8 of the solicitation, “a single award will be made to the responsible bidder”. To determine if a bidder is responsible and per the RESPONSIBIITY REQUIREMENTS section found on page 9 of the solicitation, “a responsibility check will be accomplished for the apparent awardee prior to award and will include checks of the SBA VetCert database to ensure apparently successful offeror is a verified SDVOSB. “

For the criteria for an SDVOSB concern, please see pages 39-40 of the solicitation, Section 4.14 VAAR 852.219-73 VA NOTICE OF TOTAL SET-ASIDE FOR CERTIFIED SERVICE-DISABLED VETERAN-OWNED SMALL BUSINESSES (JAN

2023) (DEVIATION).

Question 38

Q: The specification calls for Energy Star rated roofing products, that program ended over a year ago. Will the VA be using CRRC rated products in place of the DOE Energy Star program?

A: VA Design Guide references both CRRC and EPA’s Energy Star Program 3.0.

Question 39

Q: Will the Loma Linda VA look for restorative roofing systems to meet federal guidelines for construction operations and air quality? Full tear-off per spec will add additional costs for products and labor, but alternative liquid roofing systems with 20+ year warranties do not require full tear off and meet Indoor Air Quality-VA Sustainability Design Manual and FAR 36.

Question 40

Q: Will an alternate roofing membrane system be considered for this project? The PVC single ply membrane being removed and installing TPO membrane provides the same problems with thousands of linear feet of seams to leak. Will the COR consider alternate roof applications? Liquid Applied CRRC rated products, cold applied seamless, which exceed EO, FAR, Sustainability Goals.

Question 41

Q: Will the Loma Linda VA follow federal sustainability design guide and Executive Orders to reduce construction waste on projects and divert from landfills? Full roof tear-off will potentially add hundreds of tons of waste, and Co2 emissions with demolition. VA Design Manual, Solid Waste Diversion, EO 14008, 14047, and FAR 36.104.

Question 42

Q: Roof decks that do not have fall protection anchor points, will the VA require installing anchor points under this contract?

A: Contractor will be responsible for their own Fall Protection Plan to be approved by VA Safety.

Question 43

Q: Will the VA be closing roof sections during demolition and overhead crane work? The SOW lists normal hours of operation, but previous VA roof projects with cranes/overhead/demo, ACS was told the VA manual will not allow work while offices/customers are present under those sections.

A: Crane lifts will be scheduled with the VA COR during off work hours above non inpatient units.

Question 44

Q: Will the VA provide a listing of abandoned equipment?

A: Abandoned equipment will be identified by the VA before the start of work.

Question 45

Q: Will water and electrical 120v outlets that are on the roof be provided for contractors on a normal use basis, or will all use be metered?

A: It will be provided.

Question 46

Q: What size area sf, will the VA provide for a laydown area? (dumpsters/crane/equipment)

A: Adequate laydown area for (dumpsters/crane/equipment) will be assigned by COR prior to mobilization.

Question 47 Q: Are the seven small roofs on the main bldg., part of this roof project?

A: Yes.

Question 48

Q: Will the VA clarify if the use of approved trash chute will be permitted for this roofing project?

A: It will be permitted. Safety plan required to be approved by VA Safety.

***Note: Questions 49 through 51 to reference the following attachment:

Amendment 0003_Attachment J. RFI Attachment for Questions 49-51

Question 49

Q: Sheet GC100, Keynote #1 shows two locations for possible crane locations (see attached drawing). Will the VA clarify the following questions:

a) Will the VA permit crane lifts over the roof of occupied buildings?

b) The location depicted go he south is in front of loading docks where all hospital supplies are delivered.

Will the VA permit this dock areas to be blocked during normal working hours?

c) As an alternative, will the VA permit the crane placement at the northern Keynote #1 location?

d) If blocking the loading docks during normal hours will not be permitted, and the northern most location is an issue, will the VA require afterhours or weekend/holiday placement of the crane?

A:

a) No.

b) No. Crane lifts should be scheduled on weekends or on working hours.

c) Northern location is an issue due to the Emergency Department weekend traffic. Coordinate with VA

COR for additional locations.

d) VA will require after hours or weekend crane operations.

Question 50 Q: Sheet GC100, Keynote #2 indicates a location for the dumpster just north of the parking garage (see attached drawing). This location is on a very steep slope. Will the VA provide an alternate location for the dumpster or allow the dumpster to be placed at the northern most Keynote #2 location?

A: Adequate laydown area for (dumpsters/crane/equipment) will be assigned by COR prior to mobilization.

Question 51 Q: Sheet GC100, Keynote #2 & 3 shows another alternate dumpster location and laydown site, just north of the construction site dashed line (see attached drawing). This location is in a handicap parking area. This location is not desirable since it is too far for the crane reach. Will the VA allow the closure of several HC parking spaces during the course of this project?

A: Adequate laydown area for (dumpsters/crane/equipment) will be assigned by COR prior to mobilization.

Question 52 Q: Will the VA permit the use of the “staff only” service freight elevator located at the east side of the hospital for construction purposes?

A: Yes, but it must be shared with hospital staff.

Question 53 Q: Sheet AD101, Sheet Note #A (typ.) indicates the Contractor is to install safety enclosures at all entry/exit points from the building. Will the VA provide a drawing depicting where all of these safety enclosure tunnels are to be installed?

A: Anywhere work is being performed above. The General Contractor shall coordinate the safety enclosures with the VA COR.

Question 54

Q: Can the project superintendent have collateral duties as the SSHO?

A: Please refer to the original solicitation, Attachment B. Project Specifications _Roof Replacement and Lightning Protection_Revised. Per Attachment B, Para 1.7 of Spec 01 35 26, SSHO has to be a separate qualified individual from the Prime Contractor’s Superintendent and/or Quality Control Manager.

Question 55

Q: Is the deck sloped to the drains by tapered insulation or framing and concrete?

A: The slope to roof drains will be provided with tapered rigid insulation.

Question 56

Q: Are there roof areas that are over more sensitive interior spaces such as ICU, OR’s, IT etc?

A: Yes. 4NW, 4SW, and 4SE are all inpatient units. The lower CLC roof is also inpatient.

Question 57

Q: Is the existing insulation glued to the concrete?

A: From the core taken, the insulation did not appear to be adhered.

Question 58

Q: Drawings Page AD-101, Grid LL14, there is a post not on the drawings. Is this abandoned post to remain or be removed?

The following attachment is provided as a reference:

Amendment 0003_Attachment AF. RFI Attachment for Question 58 (Abandoned Post)

A: It will remain. Reroof/reseal.

Question 59

Q: Drawings Page AD-101, Grid K3, there is an old Chiller that will need to be removed per KN #43. Who will be responsible for the removal of that equipment and re-piping for the existing/remaining unit?

A: The chiller will remain. Reroof/reseal.

Question 60

Q: Drawings Page AD-101, Grid Q3, there is a piece of antenna equipment on a structured rack sitting on a pad.

Actually, there are several of these antenna structures and pads. The drawings KN #30 are calling them “existing spotlight systems”. Reference Pic – “Amendment 0003_Attachment L. RFI Attachment for Question 60 (Antenna Structure)”. Do these pads get new roofing and if so, who will relocate the structures if they are still needed in service?

A: Contractor will reroof under all antennas and antenna structures. Contractor is responsible for methods and means.

Question 61 Q: Drawings Page AD-101, Grid F2, there is a Temp AC Unit on the roof not on the plans. Reference Pic:

“Amendment 0003_Attachment M. RFI Attachment for Question 61 (Temp AC Unit)”. How should we address this situation?

A: Temp AC unit will be removed by others before or during beginning phases of the project.

Question 62

Q: Drawings Page AD-101, Grid C2, KN #30 states that this equipment is a spotlight, but it is actually a Verizon cell tower system. Refer to the following attachments: (1) Amendment 0003_Attachment N. RFI Attachment for Question 62 (Cell Site 1), and (2) Amendment 0003_Attachment O. RFI Attachment for Question 62 (Cell Site 2).

There is one on the east and west sides of the roof. Are these pads under this equipment to get new roofing and if so, who will be responsible for the relocations of these sites for the process?

A: Correct. This is a Verizon system. Contractor will reroof under all antennas and antenna structures.

Contractor is responsible for methods and means.

Question 63

Q: Are satellite dishes to be removed and replaced? If so, who is the contact of your satellite provider?

A: Contractor will reroof under all antennas and antenna structures. Contractor is responsible for methods and means. VA will contact provider if necessary.

Question 64

Q: Drawings Page AD-101, KN #10 states that these Satellite dishes are to be removed and the drawings show (2) dishes. There are actually three Satellite dishes. See attachment: Amendment 0003_Attachment P. RFI Attachment for Question 64 (Sat Dishes). Are all (3) Satellite dishes to be removed?

A: Assume all dishes will remain and reroof underneath.

Question 65

Q: Drawings Page AD-101, Grid H32, there is another Satellite Dish that looks to be in service. See attachment:

Amendment 0003_Attachment Q. RFI Attachment for Question 65 (Sat Dish 2). Is this dish going to stay and if so, who will be responsible for the relocation of the dish so that the roofing can be replaced underneath the dish?

A: Assume all dishes will remain and reroof underneath. Contractor is responsible for methods and means.

Question 66

Q: Drawings Page AE-102, Grid H32, there is an expansion Joint that runs the length of the Annex as it is attached to the main building. Should this be replaced to help eliminate leakage to areas below? The following attachments are provided as reference:

Amendment 0003_Attachment R. RFI Attachment for Question 66 (Expansion Joint 1) Amendment 0003_Attachment S. RFI Attachment for Question 66 (Expansion Joint 2)

A: No.

Question 67 Q: Drawings Page AD-101, Page Note G- “Contractor shall be required to set up project phasing for removal and replacement of roofing, shall not remove more roofing than what can be replaced in one day.” This requirement would take a 12 hr shift (4hrs of Demo & 8 hrs of replacement) and extend the project by another year. We are suggesting that the project be performed in isolated sections of the roof for demo and then replacement. Should inclement weather be forecasted, we would then cover the unfinished section with poly sheeting to prevent leakage below. The sections would be pre-approved by the VA for consensus on the activity. Would this be an acceptable work plan for the VA to consider?

A: VA will make all efforts to work with the contractor to improve productivity. However, contractor must comply with note “G, AD101.”

Question 68

Q: Does the structure currently have UL1449 5th edition compliant surge protection installed. If not will that update be part of this scope?

A: Update is not part of the scope of this project.

Question 69

Q: Drawing AD101 & AD102, KN #4 states “Existing roof drains and overflow drains to be removed & replaced, see plumbing drawings/specifications.” Details 3 & 6/AE501 calls for “Roof drain body to remain. Install new drain strainer and flashing clamp device”. Please advise if roof drain body is to be replaced.

A: The existing roof drains and overflow are to remain. There are no plumbing drawings for this project.

Question 70

Q: Please provide the existing thickness of the roof insulation throughout the entire roof areas.

Question 71

Q: What is the current means of slope for the deck?

Question 72

Q: If deck is sloped by tapered insulation can existing tapered insulation be re-used?

Question 73 Q: Solar removal, and recycling requirements rules exactly what does that mean?

A: Recycle per EPA Guidelines.

Question 74 Q: Approved areas for construction area for demolition and loading approved. (A) Southwest, dirt, and rock garden corner to remove and load roofing on the upper and lower Roofs (B) Northwest corner dirt garden. (C) Northeast, dead and cul-de-sac approximately half at the corner of the building (D) Southeast loading dock, one lane if possible.

A: The existing roof drains are to remain.

Question 75

Q: Plumbing, drain bowls, refurbish, or replace?

A: Blow out drainpipes and clean drain bowls.

Question 76

Q: Are there any work hour restrictions for Construction?

A: There are no restrictions but work outside of normal working hours must be coordinated with VA COR.

Question 77

Q: In the southeast corner there is a concrete pad That has been used for working on the lower roof that goes up into the dirt garden. There are large boulders. Would we be allowed to move them if access is granted and replace them in the same locations for construction equipment to approach the main roof and lower roof in the dirt garden areas.

A: Yes. Unclear of the location, but if landscaping is moved or damaged, it must be replaced/repaired.

Question 78

Q: Are there any restricted hours in the loading dock area, utilize a crane and lifting equipment for loading and removing things from the roof area on the east side of the building?

A: Loading dock is off limits during normal work hours. After 5PM on weekdays and weekends are acceptable. The General Contractor shall coordinate with VA COR for all crane lifts.

Question 79

Q: Will the VA consider additional dumpster locations for demolition with debris shoots? That would make a huge difference in the quantity of roofing and time spent removing and installing the roofing. See attached suggested locations.

A: VA will work with contractor to maximize effort. The General Contractor shall coordinate all dumpster locations with VA COR.

Question 80

Q: Will the VA consider a PVC membrane roof in lieu of a TPO roof system? It could provide a cost savings.

Question 81 Q: AE101 KN #4 states “Provide new walk pads as indicated. Walk pads to be provided by roof system supplier.”

Specification 07 72 00 Roof Accessories Description includes “metal grating roof walkway system” but not included in Part 2 – Products of specification. Please verify metal grating roof walkway system is not part of the scope of work.

A: Metal grating can either be removed and replaced or roofed around/under. That section of roof is in the scope of work.

Question 82

Q: Please refer to the pictures labelled: (1) Amendment 0003_Attachment T. RFI Attachment for Question 82 (Mech Equipment 1), and (2) Amendment 0003_Attachment U. RFI Attachment for Question 82 (Mech Equipment 2). These are examples of mechanical equipment on the roof that can’t be moved due to the sizes and types of equipment they serve. How are we to re-roof these areas where the equipment can’t be moved?

A: Means and methods will be determined by the General Contractor.

Question 83

Q: There are several Verizon cell towers on the tops of several of the Penthouses. How are we to reroof these areas? Refer to the following attachments: (1) Amendment 0003_Attachment V. RFI Attachment for Question 83 (PH Rooftop Equipment 1), and (2) Amendment 0003_Attachment W. RFI Attachment for Question 83 (PH Rooftop Equipment 2).

A: Means and methods will be determined by the General Contractor. The General Contractor shall coordinate with VA COR for antenna power shutdown.

Question 84

Q: Will it be ok to install the LPS downleads in PVC conduits on the exterior of the structure?

A: Metal conduit only.

Question 85

Q: Is it the intent to have a test well at every single down lead? That is not necessary per the LPS standards and would be expensive, we would recommend having just 4 test wells at the corners of the structure.

A: Four (4) Test wells will be acceptable.

Question 86

Q: Verify taxes are non-exempt?

A: As referenced on page 38 of the solicitation, please refer to FAR clauses 52.229-3 “Federal, State, and Local Taxes”, and 52.229-12 “Tax on Certain Foreign Procurements” for information regarding tax exemption.

FAR clause Reference Links:

FAR clause 52.229-3: https://www.acquisition.gov/far/52.229-3 FAR clause 52.229-12: https://www.acquisition.gov/far/52.229-12

Question 87 Q: Will there be equipment and laydown staging areas?

A: Yes. The General Contractor shall coordinate the staging areas with VA COR.

Question 88

Q: Will there be adequate staging areas to support equipment storage areas for Conex Containers?

A: Yes. The General Contractor shall coordinate the staging areas with VA COR.

Question 89

Q: Will there be dumpster areas? If yes, where?

A: Yes. The General Contractor shall coordinate the dumpster areas with VA COR at preconstruction meeting.

Question 90

Q: Identify crane areas for loading & downloading?

A: See photo of previous crane locations. The General Contractor shall coordinate the crane areas with VA COR

Question 91

Q: Will there be designated Construction parking for laborers?

A: There is limited parking available on site. Laborers may be required to park off site, but VA will do it’s best to accommodate.

Question 92

Q: B.7 – Hours of Coverage are established Monday through Friday 7:00 am to 4:00 pm PST…can we work on weekends?

A: Yes. The General Contractor shall coordinate the hours of coverage with VA COR.

Question 93 Q: Where are the emergency room intakes?

A: Emergency Department shown in RED

Question 94

Q: Are there any asbestos testing reports or hazard materials?

A: There are no HAZMAT reports for the roof. There is no asbestos material expected in the existing roof system due to its age. Please also see the following attachment:

Question 95

Q: What is the substrate as we were not allowed to do core of the roof?

A: The substrate is concrete, and the structural system is a composite metal deck on steel beams. Please also see the following attachment:

Question 96

Q: What are the current roof systems installed is there a vapor barrier? What is the Insulation thickness? How many layers? How is it attached? Is there an overboard?

A: The existing system is a PVC system, do not know if there is a vapor barrier, the insulation is approximately 4" to 6", and it appears to be mechanically fastened to the concrete substrate. The roof is to be replaced completely. Please also see the following attachment:

Question 97 Q: Lower roof there is damaged expansion joint above the roof level. Is that in the scope of work?

A: Yes, it needs to be replaced.

Question 98

Q: Are there wind up lift calculation requirements?

A: Uplift calculations are required for new roof system. Please refer to the original solicitation, Attachment B.

Project Specifications_Roof Replacement and Lightning Protection_Revised. See Attachment B, spec section 05 31 00 paragraph 1.3 H. for applicable standard, and paragraph 3.4 C.

Question 99

Q: How will roof access be provided?

A: Roof access by stairs is available at the service elevator.

Question 100

Q: Will stair towers be required? If so, what locations will be made available?

A: The General Contractor will determine if towers are required. The General Contractor shall coordinate location with VA COR.

Question 101

Q: Request an existing roof core sample for all sections.

Question 102

Q: In Roof Plan AE101 keynote 1, it states that rigid insulation is to be R-25. However, on Detail Plan AE501/1 R-30 is called out. Please confirm proper rigid insulation R-value.

A: Per the IECC the roof insulation in this zone, 3B, is to be an R-25 cont insulation.

Question 103

Q: Please confirm if the concrete deck has a structural slope or flat. If it’s flat, do we have a tapered plan?

A: The roof deck appears to be a flat slab from the as-builts and the tapered insulation creates the slope.

Assume a flat concrete deck.

Question 104

Q: Can we please have a tapered cricket layout in-between drains?

A: Tapered cricket layout will be provided to the General Contractor before issuance of a Notice to Proceed.

Question 105 Q: Please verify that the VA will be responsible for the removal of the existing solar equipment.

A: Contractor will be responsible for removal of all solar equipment.

Question 106

Q: Will we have access or any additional site photos for any of the 7 Penthouses on the main roof? The site(s) were not available during the job walk.

Question 107

Q: Is the VA asking for a fleece backed TPO? The scope description says fabric backed, but it’s not required for the 20-year NDL warranty. Please confirm.

A: Fabric backing is not required when adhering to rigid insulation board cover boards.

Question 108

Q: Will this project fall under OSHPD requirements.

Question 109

Q: The cell towers on the roof are the property of Verizon and contractor will not be able to work on the equipment pads under the cell towers. Please confirm these areas are out of scope or there will be coordination with the cell provider.

A: There will be coordination with Verizon. These areas are within scope.

Question 110

Q: There is a minimum distance workers can be in proximity to the cell towers. Please confirm VA will coordinate with cell provider to de-activate cell towers when demo/roofing is being performed around cell towers.

A: VA will coordinate with providers. Minimum safe distance is three feet. Do not stop in front of antennas.

Question 111

Q: The plans call for a minimum R25 (AE 101 Note 1) or R30 (AE 502 Note D) so if there is tapered insulation on top of that 5.2” of rigid the height of the roof system could end up being quite tall and the existing curb heights may not be adequate. Currently the curbs and penetrations are not called out to be raised. Please advise.

A: Per the IECC the roof insulation in this zone, 3B, is to be an R-25 cont insulation. The final height of the insulation will need to be addressed once it is determined and if there is a conflict with the parapets.

Question 112 Q: Phasing – Plans call to remove and replace as much roofing that can be completed in one day. This will slow production and add costs. Please advise if A SA vapor barrier could be installed over the freshly demolished roof areas prior to the insulation and membrane install. This would keep the roof area more watertight overnight and allow for more productive demo.

A: Build per plan. VA will work with contractor to improve productivity.

Question 113

Q: The Annex Building has (3) retractable skylights that appear to be disabled and sealed between the tracks and edges of the skylights. Can our roofer assume that these will stay out of service and that we can flash along the top perimeter of the skylight framing?

The following attachments are provided as reference:

Amendment 0003_Attachment AA. RFI Attachment for Question 113 (Retractable Skylight 1) Amendment 0003_Attachment AB. RFI Attachment for Question 113 (Retractable Skylight 2) Amendment 0003_Attachment AC. RFI Attachment for Question 113 (Retractable Skylight 3)

A: Skylight AA and AB will need to be accessible for future use. Skylight AC is permanently out of service.

Question 114

Q: There is a small section of Roof at the CLC Building. See Page AD-102, Grid between Q&L 28 – The KN # 35 reads “EXISTING METAL CURB AROUND RTU AND ROOF DRAIN, REMOVE AND SALVAGE FOR REINSTALLATION AFTER ROOF REPLACMENT”. This roof is not noted for replacement. Does this small section of roofing get replaced? See attachment labelled: Amendment 0003_Attachment Z. RFI Attachment for Question 114 (CLC Lower Roof)

A: This section of roof is part of the CLC and will be replaced.

Question 115

Q: Will the VA clarify whether the Site Superintendent, if duly qualified, may also serve in the roles of CQC and SSHO, or will a separate individual be required for either of those roles?

A: Superintendent can serve as CQC but not SSHO. Please refer to the original solicitation, Attachment B. Project Specifications _Roof Replacement and Lightning Protection_Revised. Per Attachment B, Paragraph 1.7 of Spec 01 35 26, SSHO has to be a separate qualified individual from the Prime Contractor’s Superintendent and/or Quality Control Manager.

Question 116

Q: Will this project require a CQC Systems Manager? Since there is only roofing and LPS, we feel this additional position will add unnecessary cost to the project.

A: CQC Systems Manager is required.

Question 117

Q: Demo plan only shows note #1 for demo on all penthouses, is the intent of the scope to overlay the main roof area?

A: The entire roof area on the main hospital and all penthouse roofs are to be reroofed. The existing roof system will be demolished to the concrete substrate for all areas.

Question 118 Q: Demo plan note #4 shows existing drain and overflows to be removed and replaced. Is the intent to replace the clamping ring and strainer only or entire drain body?

A: The existing roof drains will remain, we will replace strainers if required, but no roof drain replacement.

Question 119

Q: On attached overview we noted possible crane laydown areas. Requesting approved areas for the crane.

A: See photo of previous crane locations. The General Contractor shall coordinate the crane areas with VA COR

Question 120

Q: Are we expected to set up a staircase for roof access for this job?

A: Stairway access is available at the Service Elevator. Additional access will be the General Contractor’s responsibility.

Question 121

Q: Detail 1, 2 and 3 on AE502 and detail 8, 9 and 10 on AE501 show keeping existing insulation. Is the intent to leave the insulation in place?

A: All existing roof insulation to be removed and replaced with new rigid/tapered insulation as required to achieve an R-25 insulation value.

Question 122

Q: Can you provide as-builts?

Question 123

Q: Roof appears to be flat and we will need a full taper system. Can you confirm?

A: All existing roof insulation to be removed and replaced with new rigid/tapered insulation as required to achieve an R-25 insulation value.

Question 124 Q: The existing taper system appears to have 1/8” per foot slope. With the new system specifying ¼” per foot these will create a height issue around doors and louvers around the penthouses. Can a detail be provided for this condition?

A: Details will be provided to the General Contractor before issuance of Notice to Proceed.

Question 125

Q: On roofs section where high pedestrian traffic or limited access will it be possible to schedule work during the weekend?

A: Weekend work is possible and must be cleared with VA COR.

Question 126

Q: Please provide the ‘as built’ drawings for the roof mounted PV system at Loma Linda VA Hospital.

A: Please see the following attachments:

Amendment 0003_Attachment AD. 100P DESIGN FOR CONSTRUCTION- CUT SHEETS - 2012.05.10 Amendment 0003_Attachment AE. 100P DESIGN FOR CONSTRUCTION- 2012.05.16

Question 127

Q: There is significant cost associated with (EPA) regulations / recycling of solar PV modules. Will the Gov’t accept a receipt for ‘re-use’ or ‘donation’?

Question 128

Q: A crane will be needed to remove the existing PV system from the VA Hospital rooftop, can the government provide a map with approved locations?

A: See photo of previous crane locations. The General Contractor shall coordinate the crane areas with VA COR

Question 129 Q: Please provide the Gov't suggested geographic location of the proposed lay-down area.

A: The General Contractor shall coordinate all laydown areas with VA COR at preconstruction meeting.

Question 130

Q: Will the contractor be responsible for the stucco patchwork of the rooftop building wall housing the PV disconnects and PV switchgear once items are demolished?

A: The General Contractor will be responsible for the patch work required for PV removal as part of this project.

PV electrical boxes will not be removed from the building.

Question 131

Q: Please provide Gov’t / Cor safety procedures / protocol for working around cellular antennas / radiation exposure risk for the existing cellular antennas at VA Hospital.

A: The General Contractor shall coordinate with VA COR for shut down 24 hours prior to working within 3 foot minimum of antennas.

Question 132

Q: Please highlight / provide the areas of the rooftop at VA with the highest risk of radiation exposure to personnel.

A: Within 3 feet or in front of cellular antennas.

Question 133

Q: Please provide (Bq) of (Ci) radiation readings of the existing rooftop at VA hospital.

A: Unknown.