26-0069 Q&A (1).PDF

June 20, 2025

To: All Respondents

Re: Detroit Public Schools Community District – Davis Aerospace Technical High School

Subject: Q/A

This Clarification shall be considered part of the Request for Proposals for the above-mentioned Project, as though it had been issued at the same time, and shall be incorporated integrally therewith. Where provisions of the following supplementary information differs from that of the Original RFP Documents, this Addendum shall govern.

Respondents are hereby notified that they shall make any and all necessary adjustments to their Proposals as a result of this Clarification. It shall be construed that each Respondent’s Proposal is submitted with full knowledge of all modifications as supplemental information contained herein.

The Request for Proposal is modified and clarified, as follows:

• The Bid Due date is extended to July 8th, 2025 @ 12:00 pm Noon

Questions & Answers:

1. What bid package is responsible for furnish and installation of all millwork and solid surface per drawings and spec, BP #6 Metal Stud/Drywall/Ceilings/Carpentry or BP #12 Casework?

BO06 RESPOINSABLE FOR MILLWORK

2. What bid package is responsible for all bathroom accessories and toilet partitions, BP #06 Metal

Studs/Drywall/Ceilings/Carpentry or BP #10 Specialties?

BP06 RESPONSIBLE FOR:

Line 16 of the scope of work – Furnish and Install

Line 17 of the scope of work – Install Only

3. A-402 the casework on this page is shown so faintly I am wondering if it is to be included. can you confirm?

All case work and millwork on A-402 should included in bid. Line weight will be corrected in Addendum No. 2.

4. Please confirm that elevations in the science rooms should be governed by 123553.19 Wood Lab

Casework. There are section view tags linked to page A409, which details PLAM Casework with solid surface tops. Please confirm the science lab casework is to be wood casework with phenolic tops.

The clarifying update will be issued in Addendum No. 2.

5. 2. Please clarify key note 6.03 and 6.01. Note 6.03 calls for owner furnished casework. How are we to interpret the casework elevations? Is it safe to assume that the casework drawn in the elevations is to be included in the base bid and the items tagged as 11.04 are associated with the

6.03 tag from the floor plans (owner furnished, owner installed).

6. 3. The fume hood shown on 3/A402 is not included in the elevations and has keynote 11.04 (Equipment by Owner). Please confirm that the fume hood (115313) is to be furnished and installed by bid package 012 Casework.

CORRECT

7. 4. Work category 06 includes PLAM Countertops and Solid Surface countertops and lists item #8 to furnish and install all millwork and solid surface. Bid package #12 Casework also lists PLAM and Solid Surface Countertops.

BP12 -CASEWORK CONTRACOR ONLY RESPONSIBLE FOR LAB CASEWORK AND

ASSOCIATED COUNTERTOP

8. a. Who is responsible for solid surface countertops on PLAM Casework?

BP06 – Carpentry contractor responsible all casework and associated countertops outside of science lab classrooms.

BP12 – Casework contractor responsible for science lab classroom casework and associated countertops.

9. b. Who is responsible for the Admin Desk? If the desk is by bid package 06, is it safe to assume the PLAM casework below is by Bid package #12?

of science lab classrooms.

10. c. Who is responsible for the solid surface stool and laminated plywood paneling shown on H1/A102?

BP06 – Carpentry contractor responsible all casework and associated countertops outside of science lab classrooms.

11. d. Who is responsible for solid surface tops on metal lockers on 4/A433?

of science lab classrooms.

12. 5. Is the project registered with AWI, which requires AWI labels? Participating AWI/QCP qualified members would pass on additional costs associated with project labels. The AWI registered project requirements would govern both 123216 & 123553.19 Casework.

AWI is part of the DPSCD Technical Specifications Standards. AWI requirements are listed in sections 123216 & 123553.19.

13. 6. 123216 Manufactured Plastic Laminate Casework is listed under Bid Package #12, however, there is not a description within inclusions listing PLAM Casework. Please clarify.

BP06 – Carpentry contractor responsible all casework and associated countertops outside of science lab classrooms.

14. 7. For ADA sink stations (D8/A409 or D11/A409) undermount sinks interfere with knee space required for ADA compliance. Will drop-in sinks be acceptable at these locations?

The clarifying information will be issued in Addendum No. 2.

15. Subcontractor is submitting a substitution request for Air Master Systems Fume Hoods as an approved manufacturer under specification section 115313 Laboratory Fume Hoods.

16. Subcontractor is submitting a substitution request for CiF Laboratory Solutions as an approved manufacturer under specification section 12553.19 Wood Laboratory Casework.

17. Please provide hardware sets for Mark #024B, 106A, 026B, 011, 145, 115

The clarifying information for door hardware will be issued in Addendum No. 2.

18. Please confirm door type, hardware, & responsibility for Mark 115 – this is a Double Acting Door at the Kitchen.

19. CMU Walls receiving doors (Both New & Existing walls) are labeled as M1B – which is a 5 5/8” thick wall is this correct or should these have been a standard 8” Block (7 5/8”) wall type M1C

20. Marks: 044, 101B, 109A, 109B, 116A, 116B, 123, 124, 204A, 204B, 208A, 208B, 226 – On the Door Schedule these all have an Aluminum “Type” designation with a Material type as Hollow Metal – Please clarify which?

21. Mark 007 on the door schedule states that it is Hollow Metal – and the floor plan indicates it might be a frame type F4 but when you look at the Elevation of the opening it has lights across the top of the opening which might indicated that it is an Aluminum frame as there are no HM Frame Elevations which match the elevation – Please clarify.

22. No Fire Rating appear on any of the openings on the door schedule including the stairwell doors and electrical rooms – is this correct?

The clarifying information for the door schedule will be issued in Addendum No. 2.

23. Hardware heading #20 – this is the only hardware set that has Fire Rated Hardware (No Rated Openings on Door Schedule) and the only hardware set that is not written with Allegion Hardware

– is it acceptable to convert this hardware set to Allegion Hardware – per the Hardware Specifications and use Non-Rated Hardware?

24. Several of the Door openings are missing Wall Types Designations on the drawings – Please provide updated wall types

25. Marks: S0A.3, S0B.3 – These appear to be some type of “Gate” in the Lightwell – what are these and whose scope is responsible for these – does this fall under Bid Scope #32.

26. Flush Wood Door Spec was included but no Wood doors are found to be on the project – Am I missing a door schedule or are there no wood doors on this phase?

27. Please provide a wall section and more detail showing how the acoustical ceiling system terminates at the exterior angled curtain wall on level 2.

28. Specification Section 095423 - Metal Baffle Ceilings is listed in the Bid Package #06 scope of work, but it is not provided in the project specifications. Please provide clarification and direction.

29. Please provide a specification for the Aluminum Mullion Partition Detail per detail K5,H6/A102.

30. Please provide more detail showing the elevation and wall section of the aluminum mullion partition detail.

31. BP #06, Scope Item #14 states to furnish and install all Rolling Coil Doors, however no specification has been provided and none are found on the drawings. Please provide a specification section and locations of these doors.

32. BP #06 scope of work states to include all fluid applied vapor permeable air barrier and weather membrane, however none can be found on the project drawings. Please provide further clarification on the location of this scope.

DISCARD THE NOTE REFERING TO FUILD APPLIED VAPOR BARRIER

33. Please provide more detail on the wall assembly for Keynote #505 on pages A102N & A102S, which states to infill door opening with insulated prefinished sheet metal assembly to match existing.

34. Subcontractor is submitting a substitution request for the Resilient Athletic Flooring and Rubber Flooring for Davis Aerospace Technical High School. We are submitting Tarkett Sports DropZone Comfort 10.5mm for RES-4, as well as Tarkett Sports Omnisports Active + for SV-1.

The substitution is acceptable as long as it is 7.5mm thick.

35. Currently the plumbings plans do not show floor drains in the unisex toilet rooms. Please confirm if this is correct.

36. In Men's Room 107 on M201 there is what we believe a urinal missing between the partitions directly next to the lavs, please confirm.

37. Drawing M803 RTU-1 Control Schematic shows an Outside Air AFMS, Supply Air AFMS and Return Air AFMS.

Please provide locations in the ductwork where these AFMS are to be installed. Please clarify if exhaust airflow measurement is required as noted in the Sequence of Operation paragraph 3.

The clarifying update will be issued in Addendum No. 2.

Drawing M804 ERU-1 Control Schematic shows an Outside Air AFMS, Supply Air AFMS and Exhaust Air AFMS.

Please provide locations in the ductwork where these AFMS are to be installed

Drawing M805 RTU-2 Control Schematic shows an Outside Air AFMS, Supply Air AFMS and Return Air AFMS.

Please provide locations in the ductwork where these AFMS are to be installed Please clarify if exhaust airflow measurement is required as noted in the Sequence of Operation paragraph 3.

38. Drawing M801

Please clarify Note 4 under the New Building Automation System Network Riser is not a requirement for this project.

Are two (2) printers required? This has not been a past practice at other DPSCD sites. Please clarify.

The clarifying information will be issued in Addendum No. 2.

Are the field level DDC controllers for the Heating Hot Water System, Chilled Water System, AHU- 1, AHU-2, ERU-1 and the VAV boxes to be BACnet/IP based or BACnet MSTP based?

Specification 230933-8, 2.04 does not clearly identify the “protocol” type that is required. Please

39. Drawing M802 Are D-1/D-2/D-3 to be provided by the AHU manufacturer or furnished by TC contractor and installed by MC? The dampers are heavy, dark, bold line weight and are not shown in the ductwork. Please clarify.

The clarifying information will be issued in Addendum No. 2.

Is the Heating Coil valve a 2-way or a 3-way valve per the coil piping diagram for AHU-1 and AHU-2. Please clarify.

General Typical Exhaust Fan Control Diagram – EF-1 does not exist to software interlock to AHU-

1. Please clarify.

AHU-1 & AHU-2 Sequence of Operation paragraph 2. refers to “supply fan smoke damper”.

Smoke damper(s) are not shown on the AHU control diagram and/or the AHU- SF/RF VFC Wiring. Please clarify.

AHU-1 & AHU-2 Sequence of Operation paragraph 7. and 12., is there an offset required or not?

If yes, what is the differential?

40. Drawing M803 RTU-1 Sequence of Operation does not reference “Smoke Damper” control/interlock but there are smoke dampers located in the RTU-1 ductwork on the floor plans. Please clarify.

41. Drawing M804 Please provide a location and the duct size for ERU-1 Exhaust Air damper D-3. Damper is not shown on the floor plans. Please clarify.

42. Drawing M805 RTU-2 Sequence of Operation does not reference “Smoke Damper” control/interlock but there are smoke dampers located in the RTU-2 ductwork on the floor plans. Please clarify.

43. Drawing M808 Water, gas, and electric meter specifications have not been issued as part of 230933.

Thesemeters are to be furnished by the TC Contractor. Please clarify.

Type A and Type B Exhaust Fans show dampers in heavy, dark, bold line weight but these dampers are not shown in the ductwork or noted to be furnished by EF manufacturer. Please

44. Specification 230933-23, 2.17 Control Valves and Valve Operators

Please confirm Johnson Controls valves and valve operators are acceptable per past installations at DPSCD sites.

45. Specification 230933-26, 2.20 Damper Operators Please confirm Johnson Controls electric damper actuators are acceptable per past installations at DPSCD sites.

46. Specification 230933-28, 2.30 Thermometers - Airstream Please confirm thermometers are not required as this has not been a past practice at other DPSCD sites.

47. Please confirm that there is not an equipment schedule for air handlers. It appears the existing air handlers would be receiving air filters and parts. Also please confirm method to bring equipment into the building particularly the basement and second level. While onsite it was mentioned that perhaps the installing contractor could utilize a louver as a passage to bring equipment into the lower level and a window to bring equipment to bring equipment into the second floor. Please confirm which side of the building this would be allowed on.

48. Please confirm that York equipment is acceptable to use in the specification part 2 products. 2.01

2.02 Manufacturers only mentions AAON, DAIKIN and TRANE. York is acceptable in the remaining air handling equipment areas accept this one.

49. I see spec section 122413, but it is not listed as part of any of the bid packages. Which bid package is to include the roller window shades?

BP06 - CARPENTRY

50. Can you define locations of the WDR-1 shades?

51. Are the only locations of the WDR-2 shades at the exterior windows of room 138?

Yes.

52. Both front fascia and exposed headbox are listed in spec section 122413 2.02 G. These cannot be used simultaneously. Could you please confirm which top treatment is required for the roller shades?

53. Which trade is responsible for removal of roof top units?

DEMOLITION CONTRACTOR RESPONSIBLE FOR THE REMOVAL OF THE ROOF TOP

UNITS, MECHANICAL CONTRACTOR RESPONSIBLE FOR DISCONNECT AND RECLAIM

THE REFRIGERANT

54. What is the flooring demolition scope? There are no demo keynotes associated with flooring removal.

55. Also, if the floor demolition is by the (Demo contractor), are we responsible to Grind / scarify floors too?

YES , CONTRACTOR RESPONSIBLE TO GRIND/SCARAFY READY FOR NEW

APPLICATION

56. Is there any floor structure opening / demo at level one south of the building between grids (11-14)

& (B - E)? (the solid gray hatch on sheet Ad102). Plan legend mentions area in gray hatch as extent of floor / slab removal, new plans / structural plans do not show any floor structure openings in this area.

57. Are we responsible to scan floors before saw cutting the concrete slab?

YES, CONTRACTOR RESPONSIBLE FOR SCANNING FLOOR/ROOF BEFORE SAW CUT

58. The majority of the windows on Level Two appear to be slanted - out at top, in at bottom. Roller shades will not work with this type of slanted window, since if they are mounted right at the window head, they will roll straight down onto the window slanting in below. If shades are required at Level Two, please advise where you would like the shades mounted.

59. I would also like to submit a substitution request for Creative Windows OpenLight single manual roller shades in lieu of the specified manufacturers. Please submit the attached substitution request along with the attached product data and advise if it is acceptable to quote Creative Windows OpenLight roller shades.

Substitution is acceptable.

60. Please provide locations/drawings for Wall Coverings WC-1 thru WC-8.

61. Is there a spec section 0987823 for the phenolic panels?

62. Is there a spec section for ACP-2

63. On sheet E005 note 20 states to replace asphalt or concrete, is the required by the electric trade or civil contractor Electrical contractor to coordinate with CM after DTE coordination to determine if replacement is required and who is responsible to replace.

64. On sheet E005 note 5 states to take the 4/0 bare back to ground bus. This cant be done we have to follow DTE specification. Please confirm?

Provide DTE standard of No 2 or 1/0.

65. On sheet E005 note 16 states to provide a generator and CT cabinet, do they mean ATS?

Incoming utility CT cabinet to be mounted adjacent to generator as shown. Generator ATS is inside.

66. On sheet E005 note 15 they are asking for a back box on 12’ pole. Who is to provide this pole? If the electrical is can we get a detail and a part number for what they want?

Electrical contractor to provide pole and pole base. Detail will be added in addendum no. 2.

67. On sheet E300 note 3 states to use 2 gang mud ring to the 2 device, one of the outlets is a controlled outlet. I would like to know how this outlet will be controlled. Can we get a detail and manufacturer for it?

PBA: receptacles to be controlled via occupancy sensor as indicated on sheet E704.

Controlled receptacle manufacturers listed in 262726 wiring devices.

68. Please clarify intent re: Davis Aerospace Scope 09B flooring scope.

- Scope attached does not indicate to include RES-2 ( included in section 096519), it does reference that section and says resilient tile (DPSCD), so is DPSCD responsible for that scope of work or is that part of the 09B package?

69. How are we to quote in wall receptacles in all of the existing walls. Drawings don’t clarify what existing wall types are exactly and it’s hard to tell using the Matterpoint Links though most everything appears to be CMU w/ drywall or plaster. I see spec comments referring to 1.) Surface mounted raceway, but it doesn’t clarify application & 2.) Saw cutting walls for recessed installation is mentioned. How are we to price this up? If we are to go with recessed, is EC responsible for sawcut remove and replace?

70. Subcontractor is submitting a substitution request for Lockers. We are submitting LockersMFGAllWeldedMetalLockers.

END OF Q/A