20180911_Pre-bid_RFI_Log_CTANG_SFS.pdf

Connecticut Air National Guard

Add/Alter SFS Bldg 18 CEKT149052 Bradley ANGB, East Granby, CT Bradley ANG Base, East Granby, CT Bidder Inquiries

Item Reference Discipline RFI Response

Solicitation document page

65, paragraph 35

General Conditions

Reference the solicitation document page 65 of 75, paragraph 35. Please indicate which of the four key personnel are required full time on site for the project. A Project Manager, a full-time Site Superintendent and a full-time Quality Assurance Manager are required.

Specifications section 028416, 028433, drawings sheet AD101, AD151, AD201

Architectural

Specifications sections 028416 and 028433 indicate PCBs to be removed and disposed. Drawing

AD101, AD151 and AD201, notes 9 and 10 indicate there is a sampling report for the existing asbestos, lead paint and PCBs. Has there been a complete NESHAP's survey of the building, and if so, is there a sampling report that can be provided?

See the air environmental surveys and abatement attachments.

Specifications section 070523 Architectural

Reference specification section 070523, Pressure testing for Air Barrier System. How will the

Contractor achieve satisfactory results for the blower door test and thermography considering that the majority of the exterior wall system is existing? Please clarify the scope of the testing.

The testing for the air barrier is limited to the building addition. The GC will be required to temporarily seal areas between the existing building and the addition to perform the air barrier test.

Drawings sheet C-

001 note 13 Civil

Reference drawing C-001, note 13. Has all existing topsoil and subgrade materials been sampled and cleared for off site disposal as "clean material"?

Existing topsoil and subgrade material has not been tested for contaminants. Base Environmental Manager advised that existing topsoil and subgrade material may be contaminated with the pesticide Dieldrin. All soils are to be stockpiled on site and re-distributed around the project site. See specification 01 11 00 section 1.2.1.

5 N/A General Conditions

Has an FAA permit been filed with the CT Airport Authority for this project? FAA Form 7460 (online) has been submitted to FAA for the permanent construction for this project. The contractor is responsible to file any temporary permit required for construction cranes, etc.

Drawings sheet M-

Mechanical

Dedicated outside air unit on M808 shows the outside air damper and relief air damper outside the unit.

A. Will the contractor be required to provide these dampers?

B. Are they shown on page M-401 labelled mechanical enlarged plans?

a. If DOAS is provided with internal dampers meeting low-leakage requirements according to Section 23 81 47, 2.1.2.h, and those dampers can be commanded closed according to sequence of operations, no external dampers are necessary.

If DOAS is provided without internal dampers meeting low-leakage requirement, external dampers must meet low-leakage requirement according to Section 23 09 23.13 20,

2.3.1. A note was added to M-808 to clarify this.

The general contractor shall coordinate which party will provide the necessary equipment.

b. M-401 shows an external damper in OA duct. Keynote

M11 is revised to, "24x12 EA UP TO GRV-1. PROVIDE

MOTORIZED DAMPER IN VERTICAL." The answer to 1.a. still applies.

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Bradley ANGB, East Granby, CT Bradley ANG Base, East Granby, CT Bidder Inquiries

Item Reference Discipline RFI Response

7 Mechanical

There are three DSS (Ductless Split Systems) on this project but there is no reference to controls work on these units. Please clarify if controls work (low voltage wiring or integration) of these units.

Per ANGETL 15-01004, 20.2.2, ductless split systems for this project do not require monitoring or control by DDC. Provide manufacturer standard thermostat for local control of DSS's.

8 Mechanical The DSS-1 serving room 127 appears to be in a secured or high security room. Are there specific procedures to do work within this room? Will an CT-ANG escort be required when working within this space?

Refer to Section 01 14 00, 1.3.1 for general activity regulations. Coordinate with Contracting Officer

Representative for specific local requirements.

Drawings sheet M-

803, M-804 Mechanical

On page M-803 the condenser water system it references two cooling tower fans but the points matrix on M-804 only references one cooling tower fan. The mechanical schedule show one fan as well. Does this cooling tower have one or two fans?

The basis of design closed circuit cooler has 1 fan. M-803 is revised to clarify the design intent of a single fan.

Drawings sheet M-

Mechanical

M-803 heat trace thermostat location; where is this thermostat to be located? Will the controls contractor be responsible for the mounting, wiring, and installation of the thermostat?

See revised MP101, Keynote M5 to clarify heat trace thermostat location. Provide line-sensing thermostat on condenser water pipe.

The general contractor shall coordinate which party does portions of required work.

11 Mechanical EF-3 and 4; are these units to be DDC controlled?

Yes, a separate diagram and sequence was added to M-806 to differentiate control of EF-3 and EF-4 from EF-1 and EF-2.

12 Architectural

The drawings indicate that the storefront is to be Kawneer 1600 type 1 (which is curtain wall) while the specifications call for YKK's YHS50TU. What is required?

The drawings indicate the basis of design for the color selection only which is clear anodized. The spec indicates the basis of design for a thermally broken, impact resistant and blast mitigating storefront system. Provide per specification section.

13 Architectural

The drawings indicate that the fixed windows are to be ATFP compliant aluminum storefront even though the details are window details. The specifications call for YKK's YFW400TUH.

Provide storefront system for all windows and entrances per specification section 084113 - Aluminum Framed Entrances and Storefronts. Disregard specification section 085113. It is now deleted from the construction documents

14 Architectural The drawings specify that the finish for SF is to be clear anodized but the specifications call for organic finish as indicated. Please advise what finish is required and the color if applicable. Finish for storefront system to be clear anodized.

15 Architectural There are interior windows that are not specified by manufacturer or model. Please provide a basis of design.

For window type F Basis of design is CRL sliding Daisy Model

Pass-thru assembly. For window type C similar to F but fixed.

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Bradley ANGB, East Granby, CT Bradley ANG Base, East Granby, CT Bidder Inquiries

Item Reference Discipline RFI Response

16 Mechanical

Specification Section 25 10 10 “Utility Monitoring and Control System (UMCS) Front End and

Integration” references what appears to be a complete Utility Monitoring System. The only reference to this is on Drawing E-601 (Key Note E11) that states to “Re-connect Existing Metering

Equipment”. Is Section 23 09 23.13 20 “BACnet Direct Digital Control Systems for HVAC” responsible for this metering section (25 10 10)? If so, what points are to be metered and who is responsible for providing the meters?

The existing utilities (electric, natural gas, and water) are currently metered and monitored in Base Civil Engineering building. The intent of new work is not to disrupt the existing utility monitoring. Section 23 09 23.13 20 describes interface of new BAS with remote monitoring in Base Civil Engineering building.

Section 25 10 10 is extraneous and will be deleted from project manual.

17 C-501, Detail A4 Civil Drawing details precast wheelstops but none are shown on the drawings. Please clarify. Added precast wheelstops with keynote to C-102.

18 C-102, Note 5-8 Civil Drawing shows (4) bit paved vehicle spaces. Note designation does not include these spaces in OLI-

1. Will these spaces be a part of OLI-1?

Four government vehicle spaces are not included in OLI-1

(concrete driveway).

19 C-102, Note 13 Civil Regarding the 11' x 12' equipment pad on the north side of the building, there appears to be a legend for chain link fencing around the pad? Please clarify.

Provide chainlink fence and gate (keynote 9) around the mechanical equipment pad as noted on drawing.

20 General Conditions Will all the furnishings be removed by the Owner prior to start of construction?

Yes. Owner will remove all furnishings.

21 General Conditions Are the auditorium seats to be salvaged by the Owner? If yes, who transports them and where?

No. Spec section 01 11 00, Paragraph 1.9 lists salvage items

22 A-601 Architectural Door Types I, J and K are not shown in the elevation but are indicated in the door schedule. Please clarify.

Door types I, J and K not used. All doors with I, J and K should be door type A.

Division 44 & 46

Specification

Sections

Mechanical & Civil None of this equipment is indicated on the drawings? Please clarify.

These specification sections are extraneous and will be deleted.

Specification

Section 10 11 00, Para. 3.1

Architectural Section indicates placement schedule as "visual display boards shall be provided in all conference rooms". Please clarify quantities and sizes since none are shown on the drawings.

Provide three (2) 96"x 48" marker boards. Two (2) for conference room 111 and two (2) for classroom 114.

coordinte actual location with COR.

25 A-131 Architectural Legend indicates (4) drop down projection screens. There is no specification provided. Is this part of the GC's scope of work?

Refer to added specification section 10 10 00 Visual

Communications specialties.

26 Architectural The porcelain tile in the finish schedule is not available in 12x48. It is available in 12x24, 24x24 and

24x48. 12x24 is available in unpolished, light polished, and textured. Thee other sizes are available as unpolished. Please advise which size and finish.

Provide 12 x 24 unpolished & textured.

27 Architectural The specs include a section for static dissipative flooring. This flooring is not found in the finish schedule. Please confirm all VCT does not have to meet requirements of Static Dissipative Flooring. Provide Static dissipative flooring in comm room 129 only.

28 Architectural Finish schedule calls out 6" Rubber Base, spec 096500 calls out 4". Please advise which is correct.

Provide 6" base.

29 Architectural

On drawing I-601, Room 121 Men’s Restroom, Note 1 states “new wall shall have tile base, tile wainscot, and paint to match existing adjacent walls.” Please provide an elevation and identify products as basis of design.

Provide Stonepeak – Materia 3D USH1224082 – Pearl, Honed

12”x24”, unless the Base CE can provide exact make/model of exisitng.

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Bradley ANGB, East Granby, CT Bradley ANG Base, East Granby, CT Bidder Inquiries

Item Reference Discipline RFI Response

30 Structural

Reference A4/A-611: "Steel Angle - See Structural". This angle is not in the Structural dwg's. Please confirm where this occurs The sill is by the manufacturer. The sill connection to the structure shall be by the manufacturer. The sill is supported vertically by the brick veneer below. The steel angle shown is not required unless specifically required by the sill manufacturer. If so the steel angle size and length shall be by determined by the sill manufacturer.

31 Structural

Reference C2/A-602: "Loose Lintel - See Structural" is not found in the drawings, and nor can a loose lintel span 22'. Please confirm what is correct to use.

The angle does not span 22'. The steel angle is a continuious steel bent plate that is connected to each of the ATFP frame columns. The bent steel plate size is 3/8" thick similar to

A3/S-503 for a 12' span. Weld the vertical leg of the angle to each steel ATFP column on both sided of the ATFP column.

32 Structural

Reference S-102 Plan Level One: Upper right hand note states: New opening for rollup door, see detail B2/S-505. Also at same door 116C states reference note 9, AT/FP Framing. These two details for the same door are in conflict for what is actually required. Please confirm what is correct.

structurally. Similar situation reference C2/S-504: New Opening at Personnel Door. No personnel door found A-101 Plan. Please confirm what is correct.

1. The roll-up door only does not require the additional steel frame as noted in note 9 of S-102. Detail B2/S-505 shall be used.

2. The doors at C2/S-504 require both the steel frame and

CMU reinforcing. Both note 9 on sheet S-102 and detail C2/S-

504 shall be used.

3. The question states “No personnel door found on A-101

Plan". On the north side of the structure the structure and architectural both shows the same doors in the same locations. No issue is seen.

33 Architectural

On drawing I-601, Room 121 Men’s Restroom, Note 1 states “new wall shall have tile base, tile wainscot, and paint to match existing adjacent walls.” Which wall will be the new wall, and can we have a drawing/elevation made, as well as what type of products to carry?

Provide Stonepeak – Materia 3D USH1224082 – Pearl, Honed

12”x24”, unless the Base CE can provide exact make/model of exisitng.

34 Architectural The specified PORC-1 floor tile Daltile Dignitary is not available in 12” x 48” as shown on I-601.

Please confirm which size is the correct one to use.

See response to RFI #26.

35 Architectural The specs have section 09 62 38 for static control resilient flooring. None is shown on the finish schedule. Please confirm if the flooring will be carried in any of the rooms See response to RFI #27.

36 Structural Please identify a standoff distance for the blast doors. This is required for pricing. See B.5/S-001 for the standoff distance

37 Architectural What is the spacing of the hat channels behind the metal wall panels? Hat channels and spacing to be provided by the metal wall panel manufacturer.

38 Architectural

The Wall between 108 and 109 has a wall tag of A which is a permanent wall. The note 3 is for a demountable wall partition. Please clarify whether this wall is a permanent wall or a demountable partition. Wall between rooms 108 and 109 to be partition type A.

39 Electrical There appears to be a new transformer being installed. Please identify an allowance for General contractors to carry. The utility companies will not provide pricing in advance.

Include an allowance of $30,000 for purchase, installation, and connections to the new transformer.

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Bradley ANGB, East Granby, CT Bradley ANG Base, East Granby, CT Bidder Inquiries

Item Reference Discipline RFI Response

40 General

Please reference spec section 01 33 29 Sustainability Reporting. This specification references an attached

HSPB Checklist, and an attached TPC Checklist. We do not find the attached checklists, nor can we determine who the TPC is. Please advise on checklists, who the TPC is and their fee.

LEED® Subfactor 4 is hereby deleted from the solicitation documents. Amendment forthcoming with revised Sections

00110 and 00120 of the solicitation. Delete Section 01 33 29

Sustainability Reporting from the Specifications.

41 General

Looking at a previous similar format (Construct Entry Complex) proposal- is there a chance that the Subfactor

4- LEEDS will also be eliminated for this particular opportunity? See response to RFI # 40.

42 General

On the site visit and in the foot print there was construction occurring of the proposed addition. Please identify the schedule for this work and if new work is shown on the drawings provided.

Site work for Construction C-130 Small Air Terminal to be completed NLT November 2018. Overall anticipated project completion to include punchlist December 2018 - January

2019.

43 General

On sheet C 101 the notes make reference to the adjacent project Construct C-130 Small Air Terminal

Complex. Please identify any schedule or access constraints that will be placed on this project as a result of the construction of C-130.

There will be no schedule or access constraints due to the

Small Air Terminal project.

44 General This current project will have to allow access across the work limits for the C-130 contractor. Please also identify any lay down area constraints between the two projects.

There will be no lay down area constraints due to the Small

Air Terminal project.

45 General

Please confirm the existing building will be unoccupied for the duration of the project. The existing building will be unoccupied with the exception of comm room 127 which must remain operational throughout construction as specified by construction documents.

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