11 RFI DHC Contracting Inc. Response.pdf

FOR OFFICIAL USE ONLY

REQUEST FOR INFORMATION (RFI) FORM

RFI responses will be responded to as necessary in amendment format which will be sent via email and/or posted to SAM.gov.

Telephone requests for information will not be accepted or returned.

SOLICITATION: 36C26126R0018

NOTE: ALL PRE-PROPOSAL INQUIRIES SHALL BE SUBMITTED VIA EMAIL TO

alex.arter@va.gov BY AN EDITABLE USE OF THIS FORM. Please identify, in numerical sequence, each set of inquiries that you send.

Question(s) is/are regarding the solicitation, evaluation factors [X]

Question(s) is/are regarding the statement of work, technical data [X ]

Company Name and Offeror: DHC Contracting, Inc.

From (person submitting question):

Doug Bardin, Principal, DHC Contracting, Inc.

Date of Inquiry: February 18, 2026

Phone Number: 425.471.8860

Proposal Inquiry: (Type inquiry below)

RFI #1 – The breaking point value specified in Table 1 appears to significantly exceed both accepted industry standards and minimum requirements established by ASTM D6754 for KEE-type membranes.

To our knowledge, this specific threshold is not met by the majority of manufacturers in the industry.

Could the VA please clarify whether roofing systems meeting all relevant ASTM standards and all other Table 1 performance metrics — except for the specified breaking point value — will be considered acceptable for evaluation? If not, can the VA provide the technical justification for requiring this particular breaking point threshold, given its potential to limit competition? Provide the product called for in the specifications or an equivalent.

mailto:alex.arter@va.gov

RFI #2 – Scope Definition: We are unable to fully define our scope of work as several key elements of the roofing package remain unclear, including insulation type and thickness, attachment method, and coping gauge. Could the VA please provide clarification and confirm the required specifications for the insulation package, insulation attachment, and coping gauge, or provide the relevant drawing details? See the SOW and specifications part

1 & 2.

RFI #3 – DensDeck Installation Clarification: The specification calls for DensDeck Prime 1/2" adhered with all joints staggered. However, current detail drawings only indicate DensDeck over a plywood deck. Could the VA please clarify whether DensDeck installation is required over all deck types, including concrete or other substrates, and confirm the intended attachment method? There is no concrete deck on this project. See specifications part 3 and manufacturer's instructions.

RFI #4 – What is the current decking under the proposed areas of re-roof? Plywood Deck

RFI #5 – If there is currently concrete decking, do you agree that the best application would be to fully adhere all layers of iso? There is no concrete decking.

RFI #6 – How is the vapor barrier being applied to the roof? Install per manufacturer's instructions.

RFI #7 – What R value and thickness are needed for Polyiso? See Specifications various locations

RFI #8 – What slope is required for crickets? See specifications section 2.4

RFI #9 – Do any drains need to be retrofitted? Yes, see the SOW item I-6

RFI #10 – Should the ISO and DensDeck be adhered with KEE splatter spray or insul lock?

Install per manufacturer's instructions

RFI #11 – Is there a core cut of the building? How many layers are currently on the system that need to be torn off? Unknown

RFI #12 – Will you please provide specifications for the small metal roof section? No, the metal roofing over the stairwell is not being replaced.

RFI #13 – The RFP outlines a 20-gauge coping metal and the specifications refer to aluminum. Would you please clarify as 20-gauge is not a standard coping gauge? See specifications part 2

RFI #14 – Would you please clarify the type of vapor barrier that should be used? The details show plywood and the roofing specification talks about concrete decks. Existing roof has a plywood deck.

RFI #15 – Would you please clarify what the insulated piping pictured below is for? There are several piping systems on the roof. I.E. heating hot water, chilled water, condensate drain, domestic water, steam piping etc. There may be others as well.

RFI #16 – Please clarify where you would like the new roof ladder and provide dimensions, material type and finish. If unsure at this time, would an allowance for all bidders to carry make sense? See specifications for roof ladder details. Submit a proposed ladder and ladder location during submittal process for approval.