080683- Addendum 2 Contractor QnA - Copy.pdf

STATE OF COLORADO

DEPARTMENT OF MILITARY AND VETERANS AFFAIRS

Purchasing and Contracts 6848 South Revere Parkway Centennial, Colorado 80112 Phone (720) 250-1542 Fax (720) 250-1579

ADDENDUM #2

PROJECT 080683

BID # IFB1 2027-0012

Transient Unit Maintenance Shelter (TUMS) Ft Carson

Schedule Change:

Bids are due September 9 at 10am, Bid open follows at 10:05am.

Questions received from Contractors that attended the MANDATORY Pre-Bid Meeting:

1. Under minimum requirements, item 3 says “Demonstrated specific contracting experience in projects of similar scope and complexity for at least two (2) mom-DMVA projects each in excess of $2,500,000.00 (hard costs), utilizing the expertise present in their Colorado Office…” What does this mean?

• Spelling error. It should read non-DMVA projects in excess of $2.5m.

2. Are there any wage requirements?

• No prevailing wage, no Davis Bacon

3. Are there any permit fees that we need to include in our bid?

• State electrical and plumbing permits to be provided by General Contractor.

4. What is the status of the building permit?

• State electrical and plumbing permits to be provided by General Contractor.

5. Is the owner handling the quality control testing fee?

• Inspections will be done by DMVA 3rd party. GC to coordinate testing.

6. se provide clarification regarding the project site access and badging requirements, including any anticipated security clearance procedures, onboarding requirements, or associated costs that contractors should carry in their proposals.

• Visitor Badges will be issued after contract execution. A pre-registration or on-site application will be required by entering their information, including a U.S.

driver’s license, SSN, and good contact number (capable of receiving SMS messaging), they will be notified whether their pass is approved or denied. If approved the applicant may then present their driver’s license at the gate for scanning

7. The scheduled heaters are 80,000 BTUH which accounts for 20’ of tubing. MH101 shows it to be 8’ long and AE102 shows it to be 10’ long. Please confirm if tubes are to be straight or U-Tubes.

Jared Polis Governor

Major General Robert B. Davis The Adjutant General

• AES response: The tubes for these heaters are straight, resulting in the 20' minimum straight tube length.

8. AE301 shows the IR tube heaters to be mounted @ 15’-6” AFF. In addition, the HVLS fan shows it to be mounted @ 14’-6” AFF. Installation usually for any HVLS fan is 3’ Clearances above/below the blades and usually 24” beyond the blades (end). AE301 only has 12” shown between the blade and the heaters.

• AES response: The heaters are more than 2' laterally from fan blades. fan and heater height are flexible based on manufacturer's suggestions, other items, etc.

9. When venting 3 infrared tube heaters together, it would require 8” vent pipe instead of 6” as shown please clarify dia. (6” would be correct for 2 heaters).

• AES response: Yes. Follow manufacturer's requirements.

10. Please clarify location of venting and material to use for the heaters.

• AES response: Follow manufacturer's requirements. Ensure that placement of combustion flue through the roof does not interfere with the future build-out solar array area as shown on Drawing Sheet AE103.

11. Also, when common venting you can only use 1 thermostat to run all 3 heaters (not as shown with individual thermostat for each heater) Spec asks for a 2-stage thermostat

• AES response: Preference is for individual thermostats, if that common venting requirement is the case, vent each heater individually and provide individual thermostats.

12. What size is the main water line that we are connecting to?

• AES response: Based on received drawings it is a 12-inch line.

13. Drawing CU101 - Please clarify if there are any sanitary sewer cleanouts required besides the (3) marked as "X".

• AES response: Include an exterior 2-way cleanout in the 4" sanitary line from the admin area.

14. What is the invert elevation for the 6" sanitary at the existing manhole?

• AES response: the MH in grid D2 on sheet CU101 are 5770.62 W and 5770.52 S

15. Drawing CU101 - Please clarify if there is any work associated with note #3. Tag #3 is located on the existing 8" sanitary line.

• AES response: Note 3 indicates the connection to the existing sanitary sewer.

16. Can Chief Buildings be an acceptable PEMB manufacturer for this project?

• AES response: The basis of design is Richardson Brothers but other equal manufacturers that meet the requirements of the design drawings are acceptable.

17. Can we extend the Bid date a week to allow for additional subcontractor vetting, and scope coverage?

• Bid date was extended to 9/9.

18. Are testing and inspections services provided by the owner or contractor?

• Inspections will be done by DMVA 3rd party. GC to coordinate testing.

19. What Permits are required to be pulled by contractors?

• State electrical and plumbing permits to be provided by General Contractor

20. What municipality are permits to be issued from?

• Pikes Peak

21. Will permit costs/fees be paid by owner?

• No cost for EPA NPDES Permit

22. Is this project tax exempt? Are there any USE taxes that are not exempt?

• Local/City USE are not exempt.

23. Is a State Storm water Permit required? Is there a base specific storm water permit? What reporting will be required by base in regard to Storm water?

• No State permits need to be pulled for Fort Carson, only Federal EPA NPDES Permit.

• Fort Carson requires an EPA NPDES Permit for any site that exceeds 1 acre, including any staging or stockpile area.

• A NDPES Stormwater Permit will require the development of a SWPPP. The SWPPP requires contractor inspections every 7 days during active construction and 30 days during stabilization phase. The permitted area will need contractor inspections until re-vegetation reaches 70% of surrounding area. All inspections by contractor need to be accessible by Fort Carson DPW and G9 Environmental Branch.

• The NPDES Permit cannot be terminated until Fort Carson DPW signs off on stabilization. The permit is under contractor control until the notice of termination is completed by EPA

• Fort Carson usually requires Stormwater Management under a sub-contractor used by Fort Carson.

24. Is the White Poly insulation exposed above the Plywood that goes to 8’? Is there drywall or other wall/ceiling finishing (besides the office and bathroom area)?

• AES response: Yes, the white poly is exposed above the 8' plywood

25. Is the ¾ Plywood on the interior of the space painted?

• AES response: Yes, Refer to the Interior Finishes Schedule, Sheet AE601

26. Is the Exterior Address Signage by owner or Contractor? Is there a specified material finish/color/size/location?

• AES response: The GC is responsible for providing and installing the exterior address signage. All signage is to be coordinated via submittals and approved by the AE and DMVA. For Interior and exterior Signage refer to sheet AE401 and

AE601

27. Are there any required subcontractors? Controls? Programming? Integration?

Commissioning? Fire Alarm? Low Voltage/Data? Security?

• AES response (GP): Fire Alarm design was outside of AES's SOW and needs to be coordinated with Fort Carson personnel as it is on the GC's scope. Fire Alarm will be required to monitor and report the signals of the waterflow and tamper switches for the Fire Suppression System. Fire alarm system is required to report to a continuously monitored location.

28. Is there an environmental report for the site?

• Environmental reports for Fort Carson are available through DPW Environmental

Branch

29. If There are excess soils from excavation and grading are there any places to spoil on-site or are all excess materials to be hauled off base? If spoils are to be left on-site, where can they be hauled? If stockpiled on-site should the soil be graded into and seeded?

• Soil stockpiles should have a barrier (waddles, silt fences or equivalent) around the stockpile. If the pile is going to be unused for 14 days the pile needs to be covered. If the pile is on site long term the stockpile should be seeded. We would like to have this material hauled away if not needed.

30. Please clarify the Door Hardware, as some specs point to electrified locks, and others are mechanical in nature?

• AES response: Refer to door schedule, Note #2: All door hardware and entry systems are to be coordinated by the COR. Best Lock hardware will be the required system.

31. Is this job a prevailing wage project/LCP Tracker? If so, please provide the current wage determinations?

• No prevailing wage, no Davis Bacon

32. Will Substitutions for PEMB’s Be Considered if they meet the design criteria?

• AES response: The basis of design is Richardson Brothers but other equal manufacturers that meet the requirements of the design drawings are acceptable.

33. Questions 18-32 are in regard to PEMB’s

• This question is unclear and cannot provide a response.

34. Page AI 001 calls for 1-1/2” corrugated metal wall and roof panels. Page AE 201 calls for Vee-Rib wall panels. Please clarify if Vee-Rib is acceptable.

• AES response: The basis of building design on Sheet AI001 and in Specification 13 34 19, lists 1-1/2" wall and roof panels from Butler. These are incorrect and instead are to be MR-24 single-standing seam roof paneling and Shadow all wall paneling systems. They have been changed to better accommodate the required depth of insulation. The contractor is free, however, to use this panel system or another one of their choosing if the selected panels are equal in both style and performance of the Butler panels and approved by the COR.

35. The specs indicated 16” trapezoidal Standing Seam roof panels. Varco Pruden’s trapezoidal standing seam panels are 24”, and SLR 2 panels are 16”. Please confirm which should be used.

• AES response: 16" or 24" panel coverage as well as different profile shapes are acceptable if the panel meets the roof assembly requirements for UL 90 resistance of wind uplift. Also, if it is different from the Butler basis of design MR- 24 panel then it must be equal and approved by the COR.

36. Please confirm if AC472 accreditation is a requirement

• AES response: Confirmed.

37. RE: section 13 34 19 2.1. K - Please confirm if FM Global is required for this project, or if this is a prescriptive section added. Please note, this has been found to be no longer needed in most cases and furthermore adds high costs.

• AES response: FM Global is not required for this project.

38. Please confirm what collateral load is to be used for the PEMB structure.

• AES response: 7 psi, Reference S001

39. Please confirm that the 3-coat panel finish is a requirement.

• AES response: A two-coat similar to "Butler-Cote" in the basis of design (Sheet AI001) is acceptable.

40. If so, is the 3-coat required on all panel – roof, wall, & soffit?

• AES response: Refer to response #39.

41. Please confirm if any additional point loads, and/or collateral loading, is required at roof where solar is to be installed.

• AES response: Yes, an additional 5 psf loading support is to be added to roof in areas noted for future panel installation.

42. Please confirm if Varco Pruden is acceptable as metal building manufacturer.

• AES response: The basis of design is Richardson Brothers but other equal manufacturers that meet the requirements of the design drawings are acceptable.

43. Please confirm if Alliance is acceptable as a metal building manufacturer

• AES response: The basis of design is Richardson Brothers but other equal manufacturers that meet the requirements of the design drawings are acceptable.

44. Drawings note 11.5” purlins. Will 10” purlins be acceptable if loading requirements will allow? If 11.5” purlins are required, we recommend increasing the insulation thickness for completely fill the purlin cavity. This would require R40 insulation to be used (R30+R10)

• AES response: This is acceptable

45. Please confirm if 3-plate columns are acceptable at the alternate canopy.

• AES response: The columns at the Canopy can be 3-plate.

46. Is ceiling liner panel required at the alternate canopy?

• AES response: No

47. Reference Specification 13 34 19, 2.1, N. 2. Please note that R13+R14 c.i. (R14 continuous Rigid board) is the prescriptive method to meet the IECC energy code. While this is constructible, this method only partially fills the girt cavity with the 3" R13 (in the 8.5" or 10" girt cavity), which has been found to cause, or lead to, dead air space due to the dual layers folding within the girt space, which can cause condensation issues at the exposed steel. The industry standard method has developed to provide a full girt depth, single-layer wall insulation and liner system with thermal break tape between the girts and wall panel. Test data is available from our insulation suppliers that shows R30 and R32.5 will meet the required u-factor of 0.052 or 0.050, respectively. Additionally, this saves labor costs in erection.

• AES response: Unfortunately, this is not verifiable for this application and does not meet the current code requirements. So continuous insulation is required for the project walls in accordance with 2024 IECC.

48. Reference Specification 13 34 19, 2.1, N. 1. This notes an R value of R30 with R13 + R11 C.I. To meet this R-Value and u-factor shown, R19 + R-11 is needed. Please confirm this is acceptable.

• AES response: Refer to response #47.

49. Confirm wind locks are not specifically required for OHD and carrying a 60 psf wind rated door system is adequate

• AES response: Wind locks are required to meet a wind pressure rating of 60 psf.

50. Confirm owner is responsible for soil and compaction testing, concrete testing, structural special inspection testing, and specific MEP qualified testing such as; HVLS fans and certain elec. circuit breaker testing.

• Soil/Compaction and special inspections will be done by DMVA 3rd party. GC to coordinate testing.

51. Did anything change from original RFP regarding fire suppression system?

• AES response: Based on SBP adherence to the IBC an automatic suppression system was required per IBC §903.2.9 (4) with a fire area of more than 5,000 sf.

52. Confirm no walls go to bottom of deck (demising walls). Office 103, toilet 102 and Mech room 104 are stated as delegated design per the RCP for ceiling framing. Can further information be provided for typical ceiling framing to ensure everyone is bidding the same scope?

• AES response: The walls at the office, Restroom and Mechanical are braced and do not extend to the bottom of the roof structure. For the delegated design of the ceiling support in these areas, light framing is acceptable for hanging loads for both the acoustical tile and gypsum board ceilings as well as light fixtures and insulation. There are no walkable decks above the ceilings.

53. Can the previous RFIs be issued as an addendum? We don't see that addendum displayed. This is prudent information to ensure everyone has the same information.

• No

54. Confirm alternate # 3 does not affect the 5'x40'x8" concrete apron

• AES response: A 5' X 40' X 8' apron is to be constructed in lieu of the Canopy Alternate #3 not being accepted. This also replaces the 23'x48' concrete slab that is part of the Canopy design alternate.

55. Verify that the feeders shown on sheet EP610 for the primary transformer are correct?

The plans call for (3)#4 15kV & (1) #6 Ground inside of a 1-1/4in conduit. This does not line up with what is required on base. Additionally, can an updated feeder schedule with proper distances, conductor, and conduit sizes be provided?

• AES response: Provide these MV feeders instead: (3)#2 AWG, 15kV, AL &(1)#2GRD, 15kV, AL, 4'' conduit to match Fort Carson Design Manual.

56. We will also need to know the spec on the conductors. (Size, AL or CU, Insulation Thickness, Jacket Type, 1/3 or Full Neutral, MFG, etc.))

• AES response:

· Shown on drawing EP502.

· Conductor Size: #2, 100A, 3 phases with ground.

· Conductor Material: Uncoated AL, 7 strands, class B stranded per ASTM B-231, 105 degrees Celsius rated, 250 degrees Celsius short circuit rating. Conductor interstices should be filled with impermeable compound.

· Conductor Insulation Thickness: Ethylene-Propylene-Rubber (EPR), not less than 220 mils average thickness (200 mils minimum thickness), 133% insulation with an extruded semi-conduction screen, 15kV.

· Conductor Jacket Type: Black Chlorosulfonated Polyethylene with red extruded stripes, sunlight resistant. Suitable for wet or dry locations, in conduit, underground duct systems, direct buried, and aerial installations.

· Conductor Neutral Ampacity: Full bare copper concentric neutral, 10 strands of #14 AWG copper conductors.

· Conductor Temperature Rating: MV105.

· Conductor MFG: No manufacturer preference.

· Conductor Listing: UL 1072, AEIC CS8, ICEA S-93-639/NEMA WC 74, and ICEA S-97-682, and ICEA S-94-649.

· Conductor Sheath: Interlocked aluminum, interlocked galvanized steel, or corrugated aluminum tube applied over cable.

· Conductor shielding: Copper concentric neutral helically apply over semiconducting insulation shield.

57. What are the specs for the new transformer? Need to know if there is a manufacturer’s preference or spec that we need to follow based on the Fort Carson Design guide.

Manufacturer

Loop or Radial

Oil Type

Number of Bushings

Switchable or Not

Oil Tap Valves

Gauges

IR Windows

• AES response:

· Shown on sheet EP502.

· Manufacturer: No manufacturer Preference

· Loop or Radial: loop fed type transformer

· Oil Type:

• 1. Mineral Oil: ASTM D3487, type II, tested for compliance with

ASTM D117.

• 2. Less flammable fluid:

• 2a: Edible Seed Oil Based Dielectric.

• 2b: Biodegradable and nontoxic dielectric.

· Number of Bushings: 4(LV side), 6(HV side)

· Switchable or Not: 200A load break switches at 3 locations

· Oil Tap Valves: 1'' drain valve.

· Gauges: Oil temperature gauge, liquid level gauge, pressure vacuum gauge.

· IR Windows: Not required.

· Windings: Copper only

· Efficiency: comply with 10 CFR 431, subpart K.

· Transformer System Listing: IEEE C2 and IEEE C57.12.00.

· Surge Arrestor: Comply with IEEE C62.11, distribution class, Metal- Oxide-Varistor type, connected in each phase of incoming circuit and ahead of disconnecting device, fully shielded, separable-elbow type, suitable for plugging into inserts provided in line-side section of transformer.

· Insulation: Average winding temperature rise above 30 degrees Celsius ambient must not exceed 65 degrees Celsius and 80 degrees Celsius hottest-spot temperature rise at rated kVA when tested in accordance with IEEE C57.12.90, using combination of connections and taps that give highest average winding temperature rise.

· Tap changer: External handle, for de-energized operation.@2.5% above and below nominal voltage rating.

· Tank: Sealed, with welded-on cover. Designed to withstand internal pressure of not less than 7psi(50 Kpa) without permanent distortion and 15 psig (104 Kpa) without rupture. Comply with IEEE C57.12.36.

· Enclosure integrity: Comply with IEEE C57.12.28 for pad-mounted enclosures that contain energized electrical equipment in excess of 600V that may be exposed to public.

· Mounting: Integral skid mounting fame, suitable to allow skidding or rolling of transformer in any direction, and with provision for anchoring frame to pad.

· Sound level: Comply with NEMA TR1.

· Corrosion Protection: Meet C57.12.28, standard color green.

Fabricate front sill, hood, and tank base of single-compartment transformer from stainless steel in accordance with ASTM A167, type 304 or 304L, not less than no.13 U.S. gauge, complying with IEEE C57.12.28, standard color green.

· Compartment: Individual compartments for line and load side sections, steel, with hinged, lift-off doors and three-point latching, with stop in open position and provision for padlocking.

· Primary Fusing: Bay-o-net oil immersed in series w/ELS-p current limited fuse, 150kV BIL, comply with IEEE C37.47, 50kA rms symmetrical interrupting rating at system voltage. Bayonet fuse must sense both high currents and high oil temperature to provide thermal protection of transformer. Connect current-limiting fuses ahead of 200A load break switch.

· Line-Side Section:

1. Dead front.

2. Insulated connectors to primary: bushings must be one-piece units, conform to IEEE 386, provide insulated protective caps for insulating and sealing.

3: Bushing wells: configured for loop-fed configuration.

4: Dead front surge arrester.

5. Tap changer operator.

6. Three 200A load break switch with make-and-latch rating of 12kA rms symmetrical. See EP502 for switch configuration.

7. Ground pad.

8. Access to liquid-immersed fuses.

· Load-Side Section:

• 1. load side bushing.

• 2. Utility Meter.

· Accessories: Drain and filter connection. Filling and top filter press connections. Pressure-vacuum gauge. Dial-type analog thermometer with alarm contacts. Magnetic liquid level indicator with high and low alarm contacts. Automatically resetting pressure-relief device.

Sudden pressure relay for remote alarm or trip when internal transformer pressure rises at field-set rate without seal-in delay.

58. Need conformation from the customer/design team on what primary vault we will be coming out of. There are two vaults within proximity of the project and a transformer all of these could be considered access point to provide primary power to the new construction. This has to be backchecked with CSU Electric to ensure we are not deviating from their future construction plans regarding primary electrical duct banks and loops.

• AES response: CSU Colorado Springs Utilities pulled new power & set new power vaults on the eastern edge of the property. Transformer primary is at vault VS0535 located at the SE corner of the construction area. The vault has spare space. Installation according to FCDG.

59. Will there be testing required on the new primary transformers and conductor. If so what tests need to be performed? Can they be performed by GC's EC or does a third part testing company need to come in and test.

• AES response:

• Testing will be performed by qualified electrical testing agency. Tests include the following:

1. Comply with provisions of "Testing and Test Methods" chapter in NFPA 70B.

2. Verify grounding system at transformer is at specified value or less before energizing.

3. Nameplate verification.

4. Inspect all bolted electrical connections of high resistance using a low-resistance ohmmeter or calibrated torque wrench method.

5. perform phase to ground testing for surge arresters using manufacturer specs or NETA ATS Table 100.1.

6. Surge arrester watts-loss test.

7. Test MV transformer tank gas dew point (if applicable).

8. Insulation resistance test for winding-to-winding and winding-to-ground for MV transformer (must calculate polarization index;PI cannot be less than 1.0).

9. power-factor/dissipation-factor tests for MV transformer performed on windings in accordance with manufacturer limits of NETA ATS Table 100.3.

10. Core insulation resistance for MV transformer, measured at 500V(DC) if the core is insulated and the core ground strap is removable (must be >= 1 mega ohm) at 500V DC.

11. Secondary Voltage verification: verify phase to phase and phase to neutral voltages after energization and before loading.

12. Dissolved Gas Analysts: take an insulating liquid sample per ASTM D923 and analyze it per IEEE C57.104 or ASTM D3612 to check for internal faults or degradation.

60. Does all material need to be BABA compliant?

• It is DMVA goal to comply but not a requirement.

61. Please confirm whether Davis-Bacon prevailing wage requirements apply to this project.

• No prevailing wage, no Davis Bacon

62. Please confirm that there are no liquidated damages on this project.

• No liquidated damages

63. Will the spoils from the earthwork be disposed of on base and is there a cost associated with disposing of the spoils on base?

• DMVA would like all spoils to be hauled off.

64. Please confirm the base bid is not to include a fire pump. If it becomes necessary, it will be handled via change order including any associated electrical, controls and piping?

• AES response: Confirmed. No fire pump is included in the base bid. The utilities operations & IGSA POC; C. Markins, confirmed during design that pump will not be needed or required for this location due to the high static pressure required for the CTI building next door.

65. Who is to provide the new transformer as shown?

• AES response: The General Contractor shall provide the transformer.

66. Per specifications, section 9.2 Permits and Licenses states that no local municipal or county building permits shall be required and the only permits that are going to be necessary are the State Electrical and Plumbing permits. Please verify.

• Correct. A dig permit will also be required through Fort Carson.

67. Continuation from section 9.2 Permits and Licenses-states the Principal Representative will administer a building code program that varies at each agency or institution. Who is going to be the administrator for the principal?

• DMVA will follow the Office of the State Architect Building Code Program. In part, this involves a separate contract with a State Code Consultant for inspections during construction.

68. Will Alliance, Chief or Behlen premanufactured metal buildings be an acceptable metal building supplier for this project in lieu of Butler

• AES response: The basis of design is Richardson Brothers but other equal manufacturers that meet the requirements of the design drawings are acceptable.

69. Are there any preferred vendors for this project that should be included in the bidding process per Fort Carson, especially for the phone/data and fire alarm?

• AES response: Refer to specifications for Telecomm as those come directly from Fort Carson’s Regional Network Enterprise Center (RNEC). RNEC POC is Don Arnold or anyone else he identifies.

70. Please provide a door hardware schedule.

• AES response: Refer to door schedule, Note #2: All door hardware and entry systems are to be coordinated by the COR. Best Locks is the required hardware and cores.

71. Please clarify the exact alternates and how you need them identified.

• AES response: Refer to Div 0 specifications BID ALTERNATES o Cover sheet shows Alt #1 as fans (I cannot find any notation that the BAF on the mechanical or electrical drawings as an alternate) o AES response: Refer to Div 0 specifications BID ALTERNATES.

The specifications rule. Yes, this is an add alternate.

o Sheet AE101 shows Alt #1 for storefront glazing at one location far south on west exterior wall, no note on window at mechanical room or the Type B in the Office. And the remainder of the windows as Alt #2.

o AES response: Refer to Div 0 specifications BID ALTERNATES.

The specifications rule. All type A windows are added alternate.

The Type B window in the office is not alternate and is to be constructed. Also, there is no window in the Mechanical Room.

The window in the drafted plan on Sheet AE101 is for the window(s) above.

o Door and Window Types on Sheet AE601 call out for all storefront glazing to be Alt #6.

o AES response: Refer to Div 0 specifications BID ALTERNATES.

The specifications rule. Alt #6 in incorrect and should be Alt # 2 o Sheet AE301 elevation 1 calls out for Alt #1 to be the prefinished canopy and the concrete under the canopy.

o AES response: Refer to Div 0 specifications BID ALTERNATES.

The specifications rule. Alt #1 is incorrect and should be Alt# 3 o Sheet AE201 elevation 2 calls the canopy Alt #3.

o AES response: Refer to Div 0 specifications BID ALTERNATES.

The specifications rule. This is correct

72. Per Sheet AE101 at OH door 101E note reads 4” steel bollard at 24 locations. Sheet shows a total of 26 bollards. Are two (2) bollards on the west side of OH door 101C the only 8” bollards per Details 2 & 3 same sheet. Please clarify.

• AES response: The total number of bollards is 26 (8" DIA x 48" High)

73. Please clarify if the shared wall between the office/restroom/mech room and tums 101 will have the ¾” fire-retardant plywood to 8’ above finished floor or just the exterior partitions of the building?

• AES response: 8’ Fire retardant plywood is to go on the exterior walls. Refer to Sheet AE401 for the location of the plastic composite FRP-2 wall covering at the office/restroom/mechanical.

74. Per Sheet CU101 Keynote 6 shows the 6” fire line ending at the hydrant, please verify connection is per Detail E7/Sheet FX001.

• AES response: Use the connection per detail E7/FX001

75. Please clarify the attachment process for the galvanized flashing that extends 1’ below grade at the exterior foundations as shown per Sheet AE310, Detail 1.

• AES response: Mechanically attached to the base wall girt and, if needed, fasten below grade flashing to the concrete foundation to provide rigidity.

76. Please clarify locations for the stainless-steel corner guards shown on Sheet AE401, Keynote 8. In Detail 1 (Enlarged Plan) note 8 is shown at the outside corner of the Mechanical Room and the inside corner at the Office. Should note 8 in this detail also refer to the other inside corner of the Office and the other outside corner at the Office (outside corner is labeled CG-1in Detail 9 same sheet).

• AES response: Add corner guards on the outside corners on the Mechanical and Office room shown in detail 1. Also add two Conner guards for the inside corner at two locations in the office. Total 4 of corner guards 6' AFF with 3 1/2" leg on each side.

77. Sheet FX001 does not designate the portion of the dry pipe fire system outside of the building at the possible canopy area to be part of any alternate pricing. Please clarify if you would like this portion included in the canopy alternate or if it is a stand-alone alternate.

• AES response: Detail E7 shows the dry valve at the riser under item 2.

Therefore, all heads are on the system are part of the dry system. If the canopy is part of an alternate pricing exercise, then the piping and FP cost associated with that alternate will include the Tee near Column B.3 throughout the canopy.

All other FP costs are associated with the base bid.

Updates from Pre-Bid Meeting Bid Opening enter Conf Line 720-250-4000 Ext: 1457#

Attachments:

Addendum #2 Pre-Bid Sign in Sheet

End of Addendum