Attachment 8 - RFIs Responses.pdf

RFI (INDUSTRY QUESTIONS)

PROJ: 546-22-106

BB Renovate PM Shop and Replace Aluminum Canopy

546-22-106 Roof Canopy 1

INDUSTRY QUESTIONS GOVERNMENT RESPONSES

NOTE: This requirement is not two phases. All submission needs to be submitted by the RFP due date, noted on Amendment 0002.

1. Will the entire area from the west gate/fence line through new metal shelter to the east end block wall be totally closed off just for construction personnel during the total duration of the project?

The contractor is to coordinate usage of the yard with the VA Engineering and VA Maintenance Shops. The site will be closed off to all other personnel. All VA personnel will be OSHA trained.

2. Will any state or county agencies need to be contacted by contractors for any utility permits or fees?

No

3. With steel building having concrete footings shown 10’ deep below finish elevations, at what level is the ground water below finish elevation.

a. Wouldn’t it be more efficient & eliminate need to pump ground water at each column location to install a larger spread footing or continuous spread footing that is not as deep as the 10’D x 2’W round concrete columns?

b. If building columns are to be installed at a minimum 10’ below finish elevation the site need to have a dewatering plan and discharge plan to lower the water table to allow columns to be installed at that depth?

c. To install (20) columns at this depth the total area of the new canopy will need to be dewatered. This will include a large discharge of water. Where will the end of the discharge line be established as an approved area by the VA.

Structural foundation plans to be revised. See forthcoming Addendum #1.

Steel columns to be attached to an embedded plate on top of 24” diameter concrete pier on top of an approximate 7’ x 7’ x 16” deep reinforced concrete footing. Assumed soil bearing of 2,000 psf max.

General Contractor to verify soil bearing capacity with Licensed Geotechnical Engineer.

4. Will any of the design team be involved during construction?

a. If yes what design team members will be involved during construction?

b. Will the VA or the design team be reviewing project submittals?

Yes. All design team members mentioned on Cover Page of Drawings will be involved during construction.

The Design Teams tasks to include but not be limited to: RFI responses, Submittal Reviews, Periodic Site Visits, and Construction Meeting attendance.

5. Will Florida Sunshine locators be used for onsite locations?

No. It will be the General Contractor’s responsibility to locate all underground utilities.

6. Does the VA have any valves for sanitary to isolate sanitary lines during construction?

No. The contractor will need to coordinate sanitary shutdowns with the VA.

7. During the replacement of the sanitary diverter, lateral vault & pump station, will only the pipe needed to remove & reconnect to new system need to be removed?

The pipe will be reconnected to the new system as shown on the utility plan. Excess 2” force main and 4” sanitary pipe connects to the old lift station will need to be removed back to nearest valve or in service line.

546-22-106 Roof Canopy 2

Coordinate shutdowns with the VA as necessary. Min.

14 days’ notice for utility shutdowns.

8. Can excavated areas inside the fenced work area be left open as long as they are OSHA protected till total underground work is completed?

a. Or will all excavated areas as stated on plan notes need to be filled every day?

Excavation in the job site will be allowed to remain open.

Please note, the job site will remain open to VA Maintenance Shop personnel. VA Maintenance Shop personnel to be OSHA Trained.

9. Are flame cabinets new & supplied by Contractor?

a. Or are the existing old flame cabinets removed and relocated by the contractor?

Flammable Cabinets to be provided by VA. Whether new or relocated existing cabinets is to be Determined.

10. Dose the contractor to supply stamped structural engineered drawings for new steel building?

Yes

11. Dose the contractor needs to supply stamped structural engineered drawings for concrete foundations?

Yes

12. In specification Division 09 Finishes in has section 09 67 20.6 Resinous Urethane and Epoxy Mortar Flooring. I have looked through the plans and see any reference to epoxy flooring & 90% of the project is asphalt.

a. If there is epoxy flooring, where will epoxy flooring be installed?

b. On Plan page AF101 there is a plan note P-1 that states Use epoxy floor paint with sand grit Medium. P-1 note marker does not show up on this plan page.

Resinous Urethane and Epoxy Mortar Flooring to be installed on exterior asphalt/concrete located underneath the proposed canopy.

Finish tag on AF101 to be revised in upcoming Addendum.

13. Will VA be performing all special inspections that fall under specification 01 45 35?

a. If not, what special inspections are to be completed and paid for by the contractor?

The VA will be responsible for Structural Observations only. All other inspections are to be done at Contractor’s expense.

14. Will existing shelter column footings be removed or left in place with bolts cut flush to top of concrete?

Both options are acceptable.

15. Will existing utilities piping on trailer and new get painted by its color code or just paint them

Existing utilities are to be painted per the Specification requirements.

546-22-106 Roof Canopy 3 the color of the exterior office. Utilities have not been painted to date.

16. On Plan Page SJ101 Cut Section (5) it shows detail for repairing new drainage piping finish floor repair to be completed in concrete. 98% of the area where the new drainage piping will be installed is asphalt not concrete. Some small areas have concrete patches or sidewalks where drainage piping is routed.

a. What will be the final finish to be installed asphalt or concrete?

b. There is no detailed cut on making asphalt repairs.

A supplementary Civil detail to be included in forthcoming Addendum. See supplementary detail below.

17. Does complete asphalt area from plastic fence to the east all the way to the west end gate at the parking lot get pressured washed or just under the new canopy area?

Pressure wash all asphalt and concrete within project scope, in addition to other items listed to be pressure washed. (ie. Maintenance building and vinyl fence.)

18. Please confirm the roofing scope of work at the PM shop only includes replacement of gutters and downspouts.

Replace gutters and downspouts.

Existing Roof membrane and drip edge to remain.

Adjust existing drip edge as need to accommodate new gutter and to allow positive drainage from roof to gutter.

19. Is the drip edge at the PM shop being replaced along with the gutter?

Replace gutters and downspouts.

Existing Roof membrane and drip edge to remain.

Adjust existing drip edge as need to accommodate new gutter and to allow positive drainage from roof to gutter.

20. If the drip edge at the PM shop is being replaced, is the roof on the PM shop under warranty?

If so, please advise what manufacturer.

Replace gutters and downspouts.

Existing Roof membrane and drip edge to remain.

Adjust existing drip edge as need to accommodate new gutter and to allow positive drainage from roof to gutter.

21. If the drip edge at the PM shop is being replaced, is the PM Shop membrane TPO?

Replace gutters and downspouts.

Existing Roof membrane and drip edge to remain.

Adjust existing drip edge as need to accommodate new gutter and to allow positive drainage from roof to gutter.

22. Is a specific manufacturer required or approved for the new TPO roof system?

No. All TPO roofing products will be reviewed against specification requirements, including but not limited

546-22-106 Roof Canopy 4 to Florida and Maimi-Dade County product approval requirements.

23. Keynote 7.08 on AE102 states the roof deck is 3” but the structural roof plan SF101 shows 1.5” B deck. Please clarify which is correct.

Decking to be revised in forthcoming Addendum to show 1.5” B roof decking.

24. Please provide the design pressure for zone 1 prime on the roof. Zone 1 prime is missing form the pressures shown on S-002. This pressure is needed to determine which FBC approval to use, even though the zone may not apply due to the size of the roof.

Gross Ultimate Wind Load for roof materials in Zone 1 is as follows: Suction = -79 PSF, Pressure = 35 PSF

25. 061663 calls for cementitious sheathing on the roof. Is this to be Dexcell Cement Board?

All products, including Cement roof boards, will be reviewed against specification requirements. Product substitutions will be given proper consideration.

26. I’m having trouble finding a FBC approval for the specified system. They are requiring 1.5” minimum polyiso insulation below the cement board. Please advise.

All products, including Cement roof boards, will be reviewed against specification requirements. Product substitutions will be given proper consideration.

27. Can 5/8” gypsum board (such as Securock) be used in lieu of cement board? (Approvals exist for securock direct to metal deck, unlike cement board which requires polyiso in between).

All products, including Cement roof boards, will be reviewed against specification requirements. Product substitutions will be given proper consideration.

28. Is this property FM insured?

a. If insured by FM Global, please provide the required FM Ratings for each zone for the new canopy roofs.

The VA is not FM insured.

29. How will unforeseen material cost increases be handled?

Unforeseen material cost increases will be handled in accordance with the contract's change order process.

We will promptly notify the Contracting Officer upon identifying any cost increases, providing detailed documentation and justification. A formal change order request will be submitted for review and approval. If approved, the contract will be amended to reflect the adjusted costs, and we will implement the necessary changes to ensure project continuity.

Additionally, we will explore contingency plans and alternative solutions to mitigate the impact of such increases.

30. Please confirm the TPO membrane is to be bareback. 075423 lists “fabric backing” but I believe in error since bonding adhesive if listed as the adhesive (this is incompatible with fleeceback membranes).

-TPO roofing membrane to be fabric backed, and both fully adhered and mechanically fastened at roof perimeter.

-Multiple TPO manufacturer’s list fleeceback, adhered TPO as an option on printed Product Sheets.

-All products, including Roofing Membranes, will be reviewed against specification requirements. Product substitutions will be given proper consideration.

546-22-106 Roof Canopy 5

31. Please advise what thickness of TPO membrane to use for the new roof (i.e. 45 mil, 60 mil, etc).

60 mils, per Spec Section 07 54 23-2.4

32. Please confirm standard bonding adhesive is acceptable. Spec 075423 – Paragraph 2.5 lists both manufacturer’s standard and water based bonding adhesives.

Manufacturer’s standard adhesive is acceptable.

33. Please confirm references in 075423 to mechanically attached membrane are not applicable since the membrane is to be adhered. (Such as paragraph 3.5E)

Roofing membrane to be both fully adhered with mechanical fastenings along the perimeter.

34. 075423 Paragraph 3.7 calls for fastener withdrawal testing every 2500 SF. Please advise if this is required on new construction.

Yes

35. Please clarify the color and finish of the specified sheet metal. Spec 076000 lists anodized aluminum and a series of letters/numbers AA- C22A42. Is this a custom color anodize aluminum? Please clarify if anodized aluminum is required or if standard kynar finish can be used.

Kynar is acceptable. Specification Section 07 60 00 to be revised in forthcoming Addendum.

36. Please confirm standard color chart can be used for sheet metal fabrications.

All colors to be chosen from Manufacturer’s full spectrum of colors.

37. Please confirm Gutters are to be 050 aluminum. Spec 076000 lists them.

Hanging gutters of 0.050 inches thickness is acceptable.

38. Please provide sheet metal thickness required for downspouts.

1.3mm (0.050 inches) thick, same as Hanging Gutters.

39. Lightning protection is not shown on the roof plan but is listed in the specs. Please confirm lightning protection is not applicable to this project.

Lightning Protection is to be provided. See Drawing and Coded Notes on Sheet EP101.

40. What is the cost for badging and background checks?

$30/Person

41. Structural foundation plans to be revised. Steel columns to be attached to an embedded plate on top of 24” diameter concrete pier on top of an approximate 7’ x 7’ x 16” deep reinforced concrete footing. Assumed soil bearing of 2,000 psf max.

General Contractor to verify soil bearing capacity with Licensed Geotechnical Engineer.

42. Will there be a site plan provided to detail layout of new 7’x7’ footings?

See Addendum 1 – SB101

43. Will existing concrete patches or footings interfere with installation of new concrete footings & details of what concrete footings &

The contractor is to remove any existing work, including existing canopy foundations and maintenance yard pavement, as needed to complete

546-22-106 Roof Canopy 6 patches needs to be removed to install new site drainage to install new revised building footings?

the Work, outlined in the Contract Drawings.

Contractor Means and Methods to apply.

44. Will there be new footings cuts to show top elevation of new footings to not interfere with new underground drainage & underground gutter drain lines connecting to main drainage lines?

See Addendum 1-SB101 & SJ101

45. Also details on excavation of footings on north side by existing building that will need to be undermined to install new footings.

See Addendum 1-SB101 & SJ101

46. How high to the top elevation of the 24” diameter concrete pier extends past finish elevation?

See Architectural Exterior Elevations, Sheet AE301 – “Top of Concrete = 101’ – 4 ¼”

47. Does the VA have any valves for sanitary to isolate sanitary lines during construction?

No. The contractor will need to coordinate sanitary shutdowns with the VA.

48. Will these Drainage & Sanitary connections to existing main systems need to be scheduled after hours or weekend timeframes at premium labor costs?

After hours and weekend shutdowns should be assumed for all shutdowns that effect any area outside the Scope of Work area. VA to be notified a min. 14 days of pending shutdowns.

49. Does the contractor need to supply stamped structural engineered drawings for concrete foundations?

Yes.

50. We understand we will need to supply detailed shop drawings, but structural steel that is detailed on contract plans has not been engineered by engineers of record?

See Specification Section 05 12 00

1.4 Submittals

G. Delegated Design Drawings and Calculations: Signed and sealed by responsible Engineer.

1. Connection Calculations

2.1 System Performance

A. Delegated Design: Prepare submittal documents including design calculations and drawings signed and sealed by registered design professionals, licensed in state were project is located.

51. If contractor is to supply structural engineering for the steel building, then information on plans is just a vision of what is needed & not what is to be supplied?

The Contractor is to provide what is being asked for on the Drawings and Specifications (See response to 10a above.)

52. Does the contractor need to supply stamped structural engineered drawings for concrete foundations?

The contractor does need to supply stamped structural engineered drawings for concrete foundation. Not the foundations or rebar.

53. Footings & steel size & placement won’t be designed by engineers of record?

Footings, steel sizes, and placement were designed by Engineer of Record. The Contractor is responsible for

546-22-106 Roof Canopy 7 providing Shop Drawings that illustrate how the Contractor plans to provide steel, rebar, and concrete that will meet the design intent outlined by the Engineer of Record on the drawings and specifications. A licensed Engineers stamp, provided by the Contractor, is not required on the concrete shop drawings showing as much.

54. Resinous Urethane and Epoxy Mortar Flooring to be installed on exterior asphalt/concrete located underneath the proposed canopy.

(a) With all the new footings & drainage being installed that will leave the asphalt drive 75% cutup, are we just to patch asphalt or remove total area in construction area & replace with new?

(b) It states to install Resinous Urethane and Epoxy Mortar Flooring over asphalt. Epoxy toppings cannot be installed over asphalt. Epoxy toppings will not adhere to asphalt.

(c) Should asphalt within construction area be replaced with new concrete, if yes will new cuts & information be provided to replace with concrete including information on existing concrete patches & footings to be removed?

(a) All existing asphalt in area to receive resinous flooring to be removed and replaced with concrete.

(b) All existing asphalt in area to receive resinous flooring to be removed and replaced with concrete.

(c) Remove all pavement and canopy footings, as necessary, to complete work. New concrete to follow ‘Pavement Restoration Type IV’ on Civil Sheet CS-601

55. Will VA be performing all special inspections that fall under specification 01 45 35?If not, what special inspections are to be completed and paid for by the contractor?

The VA will be responsible for Structural Observations only. All other inspections are to be done at Contractor’s expense.

56. VA normally supplies at no cost all construction inspections.

Specification Section 01 45 35 1.4.H Special Inspector of Record (SIOR) – SIOR must be an independent third party hired directly by the Prime Contractor…”

57. Please list each inspection to be provided at cost by contractor supplied threshold inspectors/engineers

The Contractor is required to provide a Special Inspector, as necessary, to confirm work complies with work listed under “Inspection Guidelines” on Sheet S-001.