Addendum_-_1.pdf

Solicitation #: FA8601-15-R-0041

ADDENDUM NUMBER 1

TO

DRAWINGS AND SPECIFICATIONS

FOR

REPAIR EXTERIOR- FACILITY 20033

WRIGHT-PATTERSON AIR FORCE BASE, OHIO

PROJECT NUMBER: ZHTV 111925A

1. The contract Drawings and Specifications are hereby amended in part as follows:

A. On Drawing AD000 dated 08DEC2014, under the General Demolition notes delete note “All window and door frame caulking and glazing will be treated as containing asbestos unless testing proves it to be asbestos free” and replace with the following:

An environmental survey was performed on all items (except roof coping) to be disturbed during this repair project and found “no asbestos were detected”.

A copy of the report will be made available to the awarded contractor. Refer to Specification Section 01 02 20, article 3.2 paragraph B for additional requirements.

B. On Drawing AD000 dated 08DEC2014, under the General Demolition notes add the following:

The mastic used to seal the metal roof coping to the roof flashing is assumed to contain Category 1 Non-friable asbestos (720 SF) and shall be abated per Specification Section 02 08 10. Notification to the Regional Air Pollution Control Agency (RAPCA) is not required since the roof coping quantity does not fall under NESHAP regulations.

C. On Drawing AD000 dated 08DEC2014, add the heading “Construction Phasing” and the following notes.

a. Window demolition, replacement and wall reinforcement shall be scheduled in phases to limit the displacement of building occupants per floor and per elevation in the same plane.

b. The contractor shall determine the sequence of the window replacement phases.

c. The window replacement phases shall be: 1st Flr South Elev, 2nd Flr South Elev, 3rd Flr South Elev – West, 3rd Flr South Elev – East, 3rd Floor East Elev, 3rd Flr North Elev.

d. Provide fourteen calendar days advance notice to intended start of any phase. Provide two calendar days between each phase for relocating occupants.

e. The contractor shall move and reinstall the office furniture in each room adjacent to windows to be replaced. The furniture shall be stored within each room, protected during construction and cleaned after work is completed. Furniture in each room includes 1-desk, 1-desk return, 1-credenza w/ overhead storage, 1-bookcase, 2-filing cabinets.

f. The Government will move and reinstall electronic equipment, computers and printers.

D. On Drawing A-000 dated 08DEC2014, on the Finish Legend add the following:

MANFACTURER COLOR

SPEC MATERIAL BASIS OF DESIGN BASIS OF DESIGN\

*Custom Bldg 33: White 03 49 00 GFRC Synstone Cement & Silica Sand *Custom finish to match adjacent Bldg 20248 precast concrete panels.

E. On Drawing AD-203 dated 08DEC2014, on detail 4 – Elevator East Elevation – Demolition revise coded note “15A” to “15B”.

F. On Drawing A-511 dated 08DEC2014, add detail 10A “Cladding – Plan Detail” per attached drawing AD-1 dated 16JUL15.

G. On Drawing A-601 dated 08DEC2014, on the Door Schedule revise the

1. On Door No. 101A under the HDWR column delete “HW-1” and replace with “HW-3”

2. On Door No. 101B under the HDWR column delete “HW-1A” and replace with “HW-3”.

3. On Door No. 103 under the HDWR column delete “HW-3” and replace with “HW-1”.

H. On Drawing A-601 dated 08DEC2014, add the heading “General Notes” and the following:

a. The “LIQUID APPLIED AIR AND MOISTURE BARRIER” shall have the following properties:

i. Air barrier shall be capable of performing as a continuous vapor-permeable air barrier and as a liquid-water drainage plane flashed to discharge to the exterior incidental condensation or water penetration. Air-barrier assemblies shall be capable of accommodating substrate movement and of sealing substrate expansion and control joints, construction material changes, penetrations, and transitions at perimeter conditions without deterioration and air leakage exceeding specified limits.

ii. Air-Barrier Assembly Air Leakage: Maximum 0.04 cfm/sq. ft. of surface area at 1.57 lbf/sq. ft., when tested according to ASTM E 283, ASTM E 783, or ASTM E 2357.

I. On Drawing A-611 dated 08DEC2014, see the following:

a. On the Louver Schedule delete Louver No. “L-6” entirely.

b. On the Window Schedule, at Window type W-4, add “2” to the remarks column.

c. On the Window Schedule under the Remarks Column Notes add the

(2) Refer to detail 10A sheet A511 for west jamb detail.

d. On the Window Schedule, on Window types W-1 through W-7 delete “NO” under the Blinds column and replace with “YES” for each window.

e. In the Window Schedule General Notes add the following note:

(F.) Provide window blinds at all vison glass per the window schedule.

J. On Drawing S-501 dated 08DEC2014, on detail 4 “Strengthen Existing Joist” add the following notes:

5. Length of repaired is 10 LF and occurs in the exposed underside, excavation of earthwork to expose joist is not required.

6. Provide access ports in the formwork to install the new concrete strengthening joist, holes cut in the walkway will not be permitted.

2. This Addendum Number 1 hereby forms and is made a part of the above named project drawings and specifications.

16 July 2015

Sheet No

AD-1

Sheet Reference: A-511 Date: 16JUL15

WRIGHT PATTERSON AIR FORCE BASE

REPAIR EXTERIOR, FACILITY 20033

PROJECT # ZHTV 111925A

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1402789456C Polygon