PRE-BID RFIs with Responses.pdf

RFI: PRE-BID

Project Number: 504-24-106 Project Name: Replace Roofs Building 09, 10 & 45 Solicitation: 36C25723B0054

1) Is R-30 Insulation Required on the roof? If so, this will be thicker than the original roof, the scuppers will have to be raised. Do we need to include that in our pricing?

They wouldn’t let us in any of the buildings, so I don’t know if the attack is insulated.

VA RFI Response: R30 is required, it was required even at time of fully adhered EMPD that is currently on the roof.

As a side note to comment concerning, “They wouldn’t let us in any of the buildings, so I don’t know if the attack is insulated.” The offer was there, but no ladder was available and there was a drop-down ceiling. Contractor stated, “Never mind.” Nobody else asked.

2) Will there need to be insulation added to the roof. City code is R-30, 2 layers of 2.6” ISO, just need to verify this is what is needed?

VA RFI Response: Please Review SPECS for all bidding purposes.

3) These are trailer (modular) buildings, can you provide a deck substrate material verification?

VA RFI Response: No.

4) What is the warranty requirement?

VA RFI Response: Please Review SPECS for all bidding purposes.

5) How tall are the parapet walls?

VA RFI Response: Unknown.

6) Could you please provide the Wage Rate on this project (Davis Bacon)?

VA RFI Response: See uploaded WD.

7) Did you do a core cut on the existing roof; we need to know how many layers are currently on the roof?

VA RFI Response: No, Contractors are allowed to do this when coming out for a Pre-Bid Site Visit. The VA does not provide these.

8) We are to strip the existing roof to the existing metal deck, correct?

VA RFI Response: Yes, this is stated in the SPECS. Please Review SPECS for all bidding purposes.

9) Are the metal coping caps, conductor heads and down spouts to be saved and reused or replaced?

VA RFI Response: Due to the different items that are mentioned, Please Review SPECS for all bidding purposes. Items to be replaced are not to be reused.

10) If replaced, like material or copper?

VA RFI Response: Please Review SPECS for all bidding purposes. SPECS state:

“Industry standards or whichever is most.”

11) Can all insulation and taper layers be installed with fasteners into the metal deck?

VA RFI Response: Due to fasteners are necessary for metal decks, fasten insulation, glue second layer and adhere TPO. Follow Industry Standards.

12) Can the cover board for the TPO systems be installed with fasteners into the metal deck?

VA RFI Response: Due to fasteners are necessary for metal decks, fasten insulation, glue second layer and adhere TPO. Follow Industry Standards.

13) Is the existing structural metal deck sloped or flat?

VA RFI Response: It is fairly flat with a possible slight slope. Contractor to still plan for build up sloped insulation for slope from center to scuppers.

14) Will leader heads and downpipes be replaced?

VA RFI Response: Please see Keynote 4 on Drawings and review SPECS on Downspouts and Conductors.

15) Will new through wall scuppers be metal or TPO as specified?

VA RFI Response: Please see Keynote 5 on Drawings and review SPECS on Scuppers.

16) Will estchusen plates be required at overflow scuppers in order to trim out the appearance on the exterior wall?

VA RFI Response: No Decorative Plates, use existing per SPECS.

17) Specification section 072200 paragraph 3.4 & 3.5 lists a substrate board, and a Vapor retarder are these items a requirement for this project?

VA RFI Response: Yes, both are required.

18) Is a construction fence required around every building as per the specs? The buildings are occupied. Will they be occupied during roof replacement?

VA RFI Response: They will be occupied. Fence around is not necessary for this project.

A fence around the Laydown yard will – which it is unknown availability of space at this time.

19) Can the Site Super act as the SSHO if they possess all of the requirements?

VA RFI Response: Yes, but they cannot be connected to another project to any extent and shall be on site whenever work is going on. When nobody is working, parts, equipment and work must be cleaned up and locked up.

20) Is the structure sloped at the ridge to drains or is a full taper system required?

VA RFI Response: Full Taper is required with the assumption of no existing slope.

21) How many layers of existing roof exist?

VA RFI Response: This is unknown and for bidding purposes, there is a fully adhered EPDM roof with a build up slope that needs to be removed.

22) Have core samples been performed and if so, can we see them?

VA RFI Response: No.

23) Are the small metal canopies on bldg. 45 to be included and if so, what is the scope for them?

VA RFI Response: Please review Drawing Keynote #02.

24) It appears they are reusing the existing downspouts, are the coping caps to be reused as well?

VA RFI Response: Coping Caps are to be replaced along with Flashing.

25) Our manufacturer allows us to adhere their fleeced back TPO using asphalt, is this acceptable?

VA RFI Response: Federal has a lot more requirements and paperwork in order to use asphalt on roofs. Asphalt for roofs also drives up the costs. Asphalt for roofs will not be permitted for this project.

26) Laydown Area?

VA RFI Response: Due to all the construction going on, for this project, please bid assuming there will not be space available for a full laydown yard with efficient space.

Materials will need to be brought in as when ready to be used.

27) Parking?

VA RFI Response: Due to all the construction going on, for this project, please plan on a carpool plan with all employees/workers. Parking may be assigned by the time of this project’s kickoff.