Addendum 08-04.14.21.pdf

A/E Repair Exterior Walls and Replace Windows

Cincinnati VAMC – Project #539-20-103

Addendum No. 8

April 14, 2021

Addendum No. 8

A/E Repair Exterior Walls and Replace Windows

Cincinnati VAMC – Proj. #539-20-103

3200 Vine Street

Cincinnati, OH 45220

This Addendum supplements and amends the original Drawings and Specifications for the above referenced project. This Addendum shall be forwarded to all Prime Bidders and all appropriate building code authorities. This Addendum shall be taken into account in the preparation of bids and shall become a part of the Contract Documents.

Receipt of this Addendum must be acknowledged on the Bid Form.

This addendum consists of the following items:

General

1. Responses to “Requests for Information” (RFI’s).

Drawings

2. Sheet AS101 – Site/Roof Plan – Sheet Reissued. Revisions include:

a. Maximum Roof Loading information provided.

3. Sheet S200 – Masonry Details – Revise as follows:

a. Detail #4 – Ledge Angle Sealant Repair:

i. Revise Hex Note 3 to read “Existing flashing”.

ii. Revise Hex Note 5 to read “Existing brick”.

End of Addendum No. 8

Department of Veterans Affairs Medical Center, 3200 Vine Street, Cincinnati, Ohio

Repair Exterior Walls Replace Windows Project 539-20-103

04/14/21 - ADDENDUM #8

RFI’s and Responses

1. Q?: Can the site superintendent, site safety and health officer and site quality control manager functions all be performed by the same individual?

A: Yes.

2. Q?: Are there limits to work hours due to noise?

A: Reference Spec 015719; 1.5, F: Protection of Environmental Controls – Reduction of Noise.

Also reference Sheet AS101, General Phasing Note H.

3. Q?: Please confirm limits to hours / durations for interior work.

A: VA normal business hours are from 7:00am – 4:30pm. Non-peak operating hours are from

11:00am – 4:00pm. See response to RFI #2 above regarding noisy operations.

4. Q?: Are permits required for this project?

A: Building permits are not required under any local jurisdictions. Permits types are identified under several spec sections including the following:

• 013526 – Safety Requirements o Infection Control o Hot work (Hot work permits are required when doing any work that involves burning, welding, cutting, brazing, soldering, grinding, using fire-or spark-producing tools, or other work that produces a source of ignition.)

• 015719 – Temporary Environmental Controls o Environmental controls

• 024100 – Demolition o Debris disposal

• 028211 – Asbestos Abatement o Asbestos Abatement

• 028333.13 – Lead-based Paint Removal & Disposal o Hazardous waste

5. Q?: Please consider an extension to the bid due date to allow contractors adequate time to incorporate RFI responses into their pricing.

A: Per Amendment #0007, the bid date has been revised to 4/28/21.

6. Q?: During window installation, how many people/end users can be displaced at one time?

A: Rooms occupied by end users must be started and completed on the same day. Per Phasing

Note C, Sheet AS101, no more than 2 “Groups” shall be under construction in the same

Construction Phase. The VA will vacate rooms to meet the Contractor’s approved construction schedule. The Contractor will develop and submit a construction schedule to VA COR for review and approval prior to construction commencement.

7. Q?: What ICRA level is this project?

A: Reference Spec 013526; 1.12: Infection Control. This is a class II ICRA with level 1 interim life safety measures.

8. Q?: Please provide anticipated window installation schedule, how many windows are anticipated by the VA to be installed at once?

A: The maximum number of windows to be replaced simultaneous will primarily be limited by the constraints identified in the General Phasing Notes on Sheet AS101 as well as the overall project construction duration identified in Spec Section 010000; 1.3. – Statement of Bid Items. Generally, to limit exterior exposure, window units being removed should be replaced on the same day.

9. Q?: Please verify laydown area for the contractor. Will the VA provide office space inside the facility for the site superintendent?

A: No office space will be provided inside of the facility, and a material laydown area will be assessed and coordinated with the COR at the start of construction.

10. Q?: Is TB testing required for this project?

A: Reference Spec 013526; 1.13: Tuberculosis Screening.

11. Q?: Is this project tax exempt?

A: Yes.

12. Q?: Please verify COVID-19 requirements for this project.

A: COVID-19 requirements are changing with the updated CDC recommended guidelines. Our current policy requires contractors to go through a screening process at the beginning of the day and to wear a mask while in the facility.

13. Q?: Please provide an interior finish schedule.

A: Refer to General Notes on Sheets A601 thru A603 for interior finish work that apply to all window openings. Refer to Construction Notes on Sheets A601 thru A603 and Window Schedule

Notes for more specific interior scope items. Repair work will be limited to adjacent finishes impacted by the window replacement only unless noted otherwise. Finishes to match existing adjacent wall, trim, and ceiling finishes. VA to review and approve material and color selections prior to installation.

14. Q?: Will the contractor be allowed to use the VA’s facilities?

A: Reference Spec 010000 – General Requirements regarding use of elevators, toilets, and utilities.

15. Q?: What are the swing stage requirements for this project?

A: Contractor is required to provide access to complete all work. In addition, contractor access must accommodate site visits by VA and design personnel to observe construction activities and survey the masonry for unit cost work. The design team anticipated the contractor using swing stages, but this is not required. Contractor access is not to damage or exceed roof loading limits per response to RFI #21. Temporary anchors that damage or impact the façade or roof will need to be reviewed prior to installation and repaired per the VA’s direction.

16. Q?: Please provide product information for existing brick that is to be matched.

A: Reference Spec 040100 – Masonry Repair; 2.1, A – Brick Masonry Units. Acceptable matching brick: Bowerston Shale Company “Olde Harvard Smooth Modular” or equal.

17. Q?: Please verify that it is acceptable to install new windows from inside of the VA facility.

Please clarify the governments intent on this matter.

A: Window replacement work is intended to be performed primarily from the exterior. Due to restricted exterior access, some window units have been identified to be installed from the interior side. Reference Sheet A604, Window Schedule Note #16.

18. Q?: How long will a room be given to the contractor to complete masonry, window, and finish work?

A: The exterior masonry work can proceed independently of the window replacement work on a façade. The number of windows in a “room” varies. Window replacement and interior finish work to be completed as quickly as possible to minimize vacancy time. Durations of room disruption to be determined by the Contractor as part of overall project phasing & timeline and approved by the VA.

19. Q?: Can masonry work be performed on rooms when they are occupied?

A: Yes. See response to RFI #2. Coordination with the COR is necessary in advance to ensure the services are notified.

20. Q?: Are windowsills to be replaced under this contract?

A: There are window openings identified to receive new solid surface windowsills. Reference

Sheet A604, Window Schedule Note #33.

21. Q?: Is there a live load weight limit for the existing roof?

A: Refer to attached Roof Plan - Sheet AS101 revised to indicate allowable roof loads.

22. Q?: Can material be stored on the roof for daily use?

A: Material can be stored on the roof as long as it does not exceed the allowed roof loading and the roof is protected from damage. Refer to the RFI #21 for allowed roof loading. Material stored on the roof is not to interfere with the operations of the mechanical equipment. The contractor must secure their material for any weather condition.

23. Q?: Is a structural roof analysis available? If not, will one be provided by the VA?

A: A structural roof analysis is not available. If contractor means and methods require a roof analysis, then this is the contractor’s responsibility to provide.

24. Q?: Reference Spec 088000 – Glazing; 1.4, C and 2.5, A: For other VA facility window replacement projects we have been involved with, the blast-resistant windows have been designed to the minimum design provisions of 6.2.2 of the VA Physical Security Design Manual

(2015) rather than for a specific threat. Will that be acceptable on this project?

A: Yes. Refer to spec revisions issued under Addendum #5.

25. Q?: Reference Sheet S200, Detail #4: Please confirm there is no longer new flashing and brick install at angle locations specified by note 2 on the elevations referring to detail 4/S200.

A: Correct. New flashing will not be installed. Refer to Sheet S200 revisions per this addendum.

26. Q?: Reference Sheet S200, Detail #4: Is the saw cut under angles to provide a wider joint in detail 4/S200 still being done if there is no flashing work at these areas?

A: Brick is not to be cut. Refer to Sheet S200 revisions per this addendum.

End of ADDENDUM #8 -RFI’s

809' - 8" 835' - 5 3/4"

821' - 1 1/2"

821' - 1 1/2"

835' - 5 3/4"

857' - 9 1/2"

762' - 2 3/4"

740' - 7 1/2"

788' - 9 3/4" 778' - 6"

786' - 9"

821' - 1 1/2"

832' - 0 1/2"

770' - 4 1/4"

809' - 8"

766' - 2 3/4"

786' - 5"

770' - 4 1/4"

751' - 2 3/4"

740' - 2 3/4"

770' - 4 1/4"

846' - 7 5/16"

728' - 0"

GROUND FLOOR

740' - 2 3/4"

809' - 8" 749' - 3 3/4"

740' - 5"

857' - 9 1/2"

821' - 1 1/2"731' - 9 3/4"

728' - 3 3/4"

752' - 8 3/4"

775' - 10 5/8"

741' - 8"

798' - 0"

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GROUND FLOOR

712' - 4"

LOADING DOCK

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GROUP 4

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GROUP 6

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2.70 2.77

2.77 2.77

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2.73

2.74

2.73

2.74

2.73

2.74

2.76

2.752.75

2.812.81

2.76

2.75

2.75

2.75

2.73

2.74

2.75

2.752.75

2.73

2.74

2.752.75

2.73

2.74

2.75

2.76

2.82

2.792.79

2.73

2.74

2.73

2.73

2.74

2.73

2.74

2.73

2.74

2.73

2.73 2.74

2.73

2.73

2.75

2.73

2.74

2.73

2.80

2.73

2.712.71

2.792.79

2.722.72

2.812.81

X

AREA OF ROOFTOP MOBILIZATION

FOR WINDOW REPLACEMENT &

FACADE REPAIR BELOW

FACADE TAG

ELEVATION TAG

APPROXIMATE LOCATION OF EXISTING

RTU AND ASSOCIATED EQUIPMENT

NEAR OR ADJACENT TO WORK AREA.

JOHN

A.

POE

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FOET

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R E G I S

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VA Project No.

JPA Project No.

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

A

FULLY SPRINKLERED

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

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F

21 4 5 6 7 8 9 10

Phase

ARCHITECT/ENGINEER OF RECORD STAMPCONSULTANT

321 4 5 6 7 8 9 10

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A/E Repair Exterior Walls and Replace Windows

11.11.2020

SITE / ROOF PLAN

AS101

NSDF

20002.00

539-20-103

Cincinnati, Ohio

STATION

BID DOCUMENTS

3131 Newmark Drive, Suite 200 Miamisburg, Ohio 45342 |www.johnpoe.com| 937.461.3290

N Scale: 1" = 30'-0"

SITE / ROOF PLAN

SYMBOL LEGEND

GENERAL NOTES - ROOF

A. The contractor shall provide and submit the Staging Plan for V.A.

review and approval before commencing work.

B. Roof elevations shown are approximate and are for general reference only.

C. Maintain clearance for exterior means of egress doors and discharge routes.

D. Coordinate crane access with C.O.R. Site shall be restored to original condition upon completion of work.

E. Contractor to protect all roof top units (RTU), ducts, and associated equipment during the project. Roof plan shows equipment in approximate location and size. Some equipment may not be shown or unit may vary in location. All equipment to remain fully operable for the duration of project.

F. Contractor to provide "pre-filter" at all RTU unit intakes adjacent to masonry work.

G. Contractor shall provide measures to ensure all dust and debris generated by the work remains within the work area and does not pose hazardous or objectionable conditions for employees, patients, public and building mechanical equipment.

H. Contractor shall provide temporary weather protection to prevent water entry into the building and to maintain the building in a weather tight condition. Ensure that protection is in place and water tight before the end of each day’s work. During the work, the contractor shall be prepared for unexpected weather changes, so that temporary protection can be quickly installed.

J. Contractor shall protect the roof and associated systems.

Construction loads shall not exceed 25 psf unless approved by the C.O.R. Damage caused by construction activity shall be repaired per owner’s direction at Contractors cost; all repairs must maintain existing warranties. All items must be secured and braced. Install plywood cover board under all construction materials to protect existing roofing, parapet, and flashing.

K. Prior to the start of masonry work, all RTUs identified are to have pre-filter materials installed.

L. At all exterior work areas, Contractor to provide access to the design team and VAMC staff for observation of construction activities. Prior to removal of exterior access equipment (swing stages, aerial platforms, etc.); provide the design team (3) business days notice to allow for site observation trip. If notice is not provided, Contractor will be required to provide new access equipment for site observation trip.

NOTES

2.70 Hospital Entrance.

2.71 Loading dock. Maintain unobstructed access at all times.

Coordinate use with the C.O.R.

2.72 Emergency room entrance. Maintain unobstructed access at all times.

2.73 Existing roof. Protect during all work items associated with facade restoration. Refer to building elevations and general notes for additional information.

2.74 Do not store material, equipment, or demolition debris on the roof, typical.

2.75 Approximate location of existing RTU and associated

roof-mounted ductwork. Protect during all work items associated with facade restoration.

2.76 Existing abandon RTU platform.

2.77 Existing transmission tower and stabilizing cables. Protect during all phases of work. Do not use for rigging.

2.79 Maintain and protect existing pedestrian access route.

2.80 Protect existing bridge during work.

2.81 Existing asphalt paved parking lot and drive lanes. Maintain unobstructed access for hospital patrons at all times.

Coordinate the use with the C.O.R.

2.82 Protect existing picnic or shelter.

A. Exterior work is divided into individual facades. Each façade includes masonry repair, window replacement, or both.

B. Facades are combined into Groups. All facades included in a Group are intended to be completed together for efficiency in staging/rigging, mobilization, etc. as well as containment of construction noise and dust.

C. No more than 2 Groups shall be under construction in the same Construction Phase to minimize impact on occupants, unless otherwise approved by the COR.

D. Masonry work shall be performed in the calendar season between April and October. Masonry work not completed during this season shall resume in the following season.

E. Group 1 facades work shall be included in Phase 1. All other Groups are numbered in the suggested sequence of completion, but can be modified as necessary. Final Project Phasing sequence determined by the Contractor shall be coordinated with and approved by the VA.

F. Coordinate phase completion and start-up with the requirements set forth by the COR to maintain daily operations to near as normal as possible.

G. Facades included in Group 3 are Bid Alternates, and are pending approval of final Contract.

H. Coordinate all work involving the generation of excessive noise so as to occur during non-peak operating hours (11 am to 4 pm).

Activities to occur during this time period include, but are not limited to saw cutting, jack hammering, hammer drilling, and core drilling.

J. Coordinate access to all phases of construction, deliveries, and debris removal with the COR. See General Requirements.

GENERAL NOTES - PHASING

Revisions Date

1 Addendum #8 04/14/21

Storage of construction materials and rigging not allowed on these roofs.

Maxium roof loading 40 LB/SF

Maxium roof loading 20 LB/SF

Maximum Roof Loading