Addendum_02_combined.pdf

MAANG Chicopee Armory Rehabilitation MMD Project No. 985101

Chicopee, Massachusetts July 7, 2011

SMRT No. 10090-00 Addendum No. 2 Page 1 of 11

ADDENDUM NO. 2

TO

CONTRACT DRAWINGS AND SPECIFICATIONS

May 20, 2011

Massachusetts Army National Guard

Chicopee Armory Rehabilitation

SMRT PROJECT NO. 10090-00

The specifications and drawings are amended herein. This addendum consists of 87 pages. These items replace original items previously issued or are to be added to the Bidding and Construction

Documents as indicated.

Bidders are required to acknowledge receipt of this addendum on the BID FORM in the space provided. Failure to acknowledge all addenda may cause the bid to be considered not responsive to the invitation, which would require rejection of the Bid.

The Contract Documents for solicitation of Bids for the construction are hereby changed as follows:

PART I – PERTAINING TO THE SPECIFICATIONS:

1. Table of Contents

a. Revise section number of MAINTENANCE OF STONE ASSEMBLIES to read:

01 01 40.

b. Add Section 07 84 13 PENETRATION FIRESTOPPING

c. Add Section 08 31 13 ACCESS DOORS AND FRAMES

d. Revise name of Section 22 05 48 to read: PLUMBING VIBRATION AND

SEISMIC CONTROLS

e. Add Section 22 35 00 DOMESTIC WATER HEAT EXCHANGERS

f. Add Section 23 34 23 POWER VENTILATORS.

g. Add Section 23 81 26 SPLIT SYSTEM AIR CONDITIONERS.

h. Add Section 23 82 33 CONVECTORS.

2. Section 01 00 00 SUMMARY

a. Add the following sub-paragraph to 1.5, B:

2. Contractor shall take care and avoid disturbing the north east portions of the parking lot and site. This area has been designated as an Archeologically Sensitive

Avoidance Area.

3. Section 01 73 00 EXECUTION REQUIREMENTS

a. Add the following paragraphs to 1.6:

I. Cutting and Patching: The General Contractor (GC) shall provide cutting, SMRT No. 10090-00 Addendum No. 2 Page 2 of 11 patching, core drilling, excavation, backfilling, concrete work (housekeeping and equipment pads, equipment foundations, floor and slab infill, duct backs and encasements) as required for the Div 22, 23 and 26 trade contractors to perform their work.

J. Painting: GC to provide and painting of Div 22, 23 and 26 systems.

4. Section 02 08 00 ASBESTOS ABATEMENT AND RELATED WORK:

a. At table on page 02 08 00 - 2, change fourth row, middle column to read:

Existing Assembly Hall area, in locations where necessary at Corridors 112, 115 and

117. (Base Bid Item)

b. At table on page 02 08 00 - 3, change fourth row, left column, first sentence to read:

Removal and proper disposal as ACM of all boiler and hot water tank insulation.

At table on page 02 08 00 - 3, change fourth row, right column to read:

500 square feet (1 boiler unit and 1 HW tank).

5. Section 04 01 20 MAINTENANCE OF UNIT MASONRY

a. Delete the phrase “10 percent” from sub-paragraph 1.3, A, 1 and replace with “1,000 square feet.”

6. Section 05 50 00 METAL FABRICATIONS

a. Replace section in its entirety.

7. Section 07 84 13 PENETRATION FIRESTOPPING

a. Add section in its entirety.

8. Section 08 14 16 FLUSH WOOD DOORS

a. Rename paragraph 2.5 “SHOP FINISHING”

b. Paragraph 2.5, A: Delete both occurrences of the phrase “first coat of finish” and replace with “final finish.”

9. Section 08 31 13 ACCESS DOORS AND FRAMES

a. Add section in its entirety.

10. Section 08 41 13 ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS

a. Add the following paragraphs to 1.4:

H. Minimum Antiterrorism Performance Criteria: Entrances and storefronts shall meet the performance requirements below:

1. Computational Design Analysis Method: Entrances and storefronts shall resist a static load of 1 lb. per square inch applied perpendicular to the surface of the glazing and frame. Aluminum frame members may be designed based on 0.2% offset yield strength. Deformations shall not exceed l/60 of the unsupported member lengths. Equivalent static design loads for connections of the frames to the surrounding structure, the door hardware, associated internal door and frame connections, and glazing stop connections shall be 10.8 pounds per square inch for glazing panels with a vision area less than or equal to 10.8 square feet, and 4.4 pounds per square inch for glazing panels with a vision area greater than 10.8 square feet but less than or equal to 32 square feet. (Vision area is defined as the area through which light may be seen.) Connections and hardware may be designed based on ultimate

SMRT No. 10090-00 Addendum No. 2 Page 3 of 11 strength for steel and 0.2% offset yield for aluminum. Ultimate strengths and yield strengths may be increased by a factor of 1.1 over specified values. In addition, all safety factors used in blast-resistant structural design may be removed except for safety factors relating to shear.

2. Standard Airblast Test Method: Each minimum antiterrorism entrance and storefront type shall be tested for evaluation of hazards generated from airblast loading in accordance with ASTM F 1642 by an independent testing agency regularly engaged in blast testing. For proposed entrances and storefronts that are of the same type as the tested system but of different size, the test results may be accepted provided the proposed door and frame size is within the range from 25% smaller to 10% larger in area, than the tested door and frame. Proposed windows of a size outside this range shall required testing to evaluate their hazard rating. Tested may be by shocktube or arena test. The test hall be performed on the entire proposed window, which shall include, but not be limited to, the glazing, it’s framing system and all anchorage devices. Anchorage of the frame or subframe shall replicate the method of installation to be used for the project. The minimum airblast loading parameters for the test shall be as follows: Peak positive pressure of

5.8 psi and positive phase impulse of 41.1 psi-msec. The hazard rating for the proposed entrance and storefront systems, as determined by the rating criteria of ASTM F 1642, shall not exceed the “Very Low Hazard” rating

(i.e. the “No Break,” “No Hazard,” “minimal Hazard” and “Very Low

Hazards” ratings are acceptable. “Low Hazard” AND “High Hazard” ratings are unacceptable). Results of windows previously tested by test protocols other tha ASTM F 1642 may be accepted provided the required loading, hazard level rating and size limitations stated herein are met.

b. Delete the phrase “Medium stile; 3-1/2-inch nominal width.” From sub-paragraph

2.5, A, 2.

11. Section 08 51 13 ALUMINUM WINDOWS

a. Add the following sub-paragraph to 1.6, A, 2:

d. Motorized Window Operators - 2 years

b. Add the following paragraph to 2.4:

D. Motorized Window Operators: Wintrol M2100 Motorizing System or equal, compatible with window hardware.

c. Add the following paragraph to 2.6:

F. Mullions: Mullions and muntins to have similar profile and dimension to existing windows to be demolished. This is an effort to preserve the existing appearance of the 1950's armory.

12. Section 22 05 48 MECHANICAL VIBRATION AND SEISMIC CONTROLS

a. Revise name of section and all occurrences of “mechanical” to “plumbing.”

b. Delete table 3.9 in its entirety.

13. Section 22 07 00 PIPE INSULATION

a. Delete the referenced section name “Basic Mechanical Requirements” from paragraph 1.1, B and replace it with “Basic Plumbing Requirements.”

SMRT No. 10090-00 Addendum No. 2 Page 4 of 11

b. Delete the referenced section name “Basic Mechanical Materials and Methods” from paragraph 1.1, C and replace it with “Basic Plumbing Materials and Methods.”

c. Add the following paragraph to 1.2:

C. Contractor shall provide insulation systems on the following piping systems:

1. New installations.

2. Currently un-insulated existing installations.

3. Currently insulated installations where the existing insulation will be removed as part of this project (to accommodate abatement, tie-ins or other).

14. Section 22 11 23 FUEL GAS PIPING

a. Add the following paragraph to 3.7:

C. Seismically brace fuel gas piping installations per the requirements section 22 05

48.

15. Section 22 35 00 DOMESTIC WATER HEAT EXCHANGERS

a. Add section in its entirety.

16. Section 23 07 19 PIPE INSULATION

a. Add the following paragraph to 1.2:

C. Contractor shall provide insulation systems on the following piping systems:

1. New installations.

2. Currently un-insulated existing installations.

3. Currently insulated installations where the existing insulation will be removed as part of this project (to accommodate abatement, tie-ins or other).

17. Section 23 34 23 POWER VENTILATORS

a. Add section in its entirety.

18. Section 23 51 00 BREECHING, CHIMNEYS AND STACKS

a. Replace paragraph 2.2 Listed Gas Vents with the following text:

2.2 LISTED SPECIAL GAS VENT

A. Category III Vents

a. Description: 26 gauge, single wall vent pipe, sealed gas tight per

ANSI

b. Joins shall be sealed w/ metallic tape or suitable material rated for a minimum of 350° F.

c. Roof penetrations shall pass uninterrupted through a non-ventilating thimble. The thimble shall extend a minimum of 18 inches above and 6 inches below. The thimble shall have an annular space at the bottom and be closed at the top.

d. Wall Penetrations All combustible material shall be removed a sufficient distance from the metal pipe. Only noncombustible materials shall be used to close and seal the penetration.

B. Category IV Vents.

a. Direct Vent sidewall system with horizontal sidewall termination of both the vent and combustion air.

SMRT No. 10090-00 Addendum No. 2 Page 5 of 11

i. The vent system shall be approved by the boiler manufacturer and shall be of PVC,CPVC, PPs Propylene construction.

ii. The total equivalent venting length shall not exceed 30 feet when using 3 inch pipe or 60 feet when using 4 inch pipe.

19. Section 23 73 33 INDIRECT-FIRED H&V UNITS

a. Modifiy 1.2 A2 to read: Direct expansion cooling package.

b. 2.2A change the word evaporative to read DX

c. Add a new paragraph 2.8 as follows:

2.8 Direct Expansion Cooling

1. Refrigerant Coil: Copper tube, with mechanically bonded aluminum fins and thermal-expansion valve. Comply with ARI 210/240.

2. Drain Pans: Insulated galvanized steel with plastic liner. Fabricate pans and drain connections to comply with ASHRAE 62.1. Drain pans shall be removable.

3.

d. Renumber the existing 2.8 Controls and 2.9 Motors to be 2.9 and 2.10 respectively.

20. Section 23 81 26 SPLIT SYSTEM AIR CONDITIONERS.

a. Add section in its entirety.

21. Section 23 82 33 CONVECTORS

a. Add section in its entirety.

22. Section 23 89 00 LOUVERS AND VENTS

a. Replace section in its entirety.

23. Section 26 05 00 GENERAL REQUIREMENTS FOR ELECTRICAL WORK

a. Delete sub-paragraph 1.3, C, 1 and replace with the following:

1. Primary electrical service conduits and grounding materials for utility company transformer. Arrange for utility company to provide primary wire and transformer.

Arrange and pay for any and all associated utility company fees. Coordinate with the

GC and the utility company in terms of providing transformer foundation, duct bank, excavation and backfill.

b. Delete paragraph 1.13, D and replace with the following:

D. The existing electrical service to the building may be utilized for temporary power during construction. The electrical service to the building shall not be interrupted for longer than 8 hours during the service change-out.

PART II – PERTAINING TO THE DRAWINGS:

1. Drawing GI001:

a. Add the following mechanical drawing to the Drawing List:

M-502 Mechanical Details

SMRT No. 10090-00 Addendum No. 2 Page 6 of 11

2. Drawing AD101:

a. Revise Demolition Key Note 9 to read: Remove equipment including lockers, shelving and caging and relocate to storage location to be designated by Owner within the existing premises.

b. Change Demolition Key Note 11 in Unit Storage to Demolition Key Note 9

c. Revise note in Enlisted Men’s Locker Room to read: Remove Lockers and relocate to storage location to be designated by Owner within the existing premises.

3. Drawing AE121:

a. Change note with leader to Chimney to read: Chimney demolished as part of Add

Alternate No. 4 – Boiler Replacement.

b. ACCU-1 and ACCU-2 locations shown on roof plan per sketch A-2.

4. Drawing AE301:

a. Revise entrance to match civil drawing per sketch A-4.

5. Drawing AE501:

a. Roof sleeper detail added as sketch A-3.

6. Drawing AE601:

a. Room Finish Schedule, Room 110: In addition to the south and west wall painting scope, add north and east wall scope. North: PTD-2. East: PTD-2.

b. Room Finish Schedule, Room 119: Delete painting scope from the east wall. East:

ETR.

7. Drawing AE611:

a. Window Elevations A6: Revise per sketch A-1.

b. Door Elevations F10: Revise per sketch A-1.

8. Drawing MD101:

a. Terminate the large relief/exhaust duct near column line C.1/8 at the existing joint above the height of the door to the new SIPRnet Room.

b. Remove additional finned radiation and pipe from the Unit Storage per sketch M-1.

c. Remove a fan coil in the Enlisted Men’s Locker Room per sketch M-1.

9. Drawing M-101:

a. Replace this drawing in its entirety.

10. Drawing M-401:

a. Replace this drawing in its entirety.

11. Drawing M-502:

a. Add this new drawing.

12. Drawing M-601:

a. Replace this sheet in its entirety.

SMRT No. 10090-00 Addendum No. 2 Page 7 of 11

13. Drawing M-651:

a. Modify the MAU control diagram per sketch M-2

14. Drawing M-652:

a. Heating Plant Sequence of Operations:

In the first line of item #1: change the word “Boiler” to read “Heating.”

b. Heating Plant Sequence of Operations:

At the end of the line for item #2: add the words “Available Year Round.”

c. Heating Plant One Line Diagram:

Re-number the pump serving the DHW Tank from “P-3” to “P-7.”

d. Add Sequence of Operation for EF-2 per sketch M-3.

15. Drawing PL101:

a. Delete hub drain, underslab piping and trap primer piping previously issued by

Addendum No. 1, sketch P-2. Rather, add condensate pump per sketch P-1.

16. Drawing PL401:

a. Part Plan A1: Remove existing water heater as part of Alternate #4 per sketch P-2.

b. Part Plan A8: Provide new water heater as part of Alternate #4 per sketch P-3.

17. Drawing PL501:

a. Detail A5: Delete Trap Primer detail (which was added by Addendum No. 1).

b. Detail K1: Delete Hub Drain detail (which was added by Addendum No. 1) and replace with Condensate Pump detail per sketch P-4.

18. Drawing PL601:

a. Add water heater schematic per sketch P-5.

19. Drawing ED101:

a. Additional plumbing loads to be deleted per sketch E-7.

20. Drawing ES101:

a. Add the following sentence to the end of note 3:

Refer to specification section 26 05 00, paragraph 1.13, D.

21. Drawing EP101:

a. Scope for motorized windows clarified and mechanical loads added per sketch E-1.

b. Scope for motorized windows clarified and plumbing loads added per sketch E-2.

22. Drawing EP102:

a. Scope for motorized windows clarified and duct smoke detectors deleted per sketch

E-3.

b. Scope for motorized windows clarified and duct smoke detectors deleted per sketch

E-4.

23. Drawing EP601:

a. Mechanical loads added per sketch E-5.

SMRT No. 10090-00 Addendum No. 2 Page 8 of 11

b. Plumbing loads added per sketch E-6.

PART III – CLARIFICATIONS, QUESTIONS AND ANSWERS

The following questions were raised by bidders following the 06/28/11 Pre-Bid Walkthrough.

1. Clarifications to Addendum No. 1:

a. Page 1 of 7: Part I, item 1b added section 07 72 00 to the Table of Contents. This section was included in Addendum No. 1 and intended to be included in its entirety as part of the project.

b. Page 6 of 7: Part II, item 16, c provides an added detail reference of K5. This reference should actually be A5.

c. Page 7 of 7: The following plumbing sketches were inadvertently omitted from the list identified on page 7 of 7 of Addendum No. 1. However, these sketches were included and should be considered part of Addendum No. 1: P-1, P-2, P-3, P-4, P-5.

2. Are we to include section 084113 Entrances/Storefronts as part of bid package 080001 metal windows? Please confirm. If so, do we include hardware for aluminum doors?

Ans: No.

3. Advise if section 084113 material would also have to meet anti-terrorism performance criteria.

Ans: Yes. See modifications to section 08 51 13 above.

4. Are we responsible the window barriers shown on sketch A3 in addendum #1? If yes, is there a spec for these?

Ans: Yes. No specification section is provided beyond the criteria identified on the sketch and as provided in Addendum #1, Part 2, Item 8 - AE201, Revision to Key Note

1.

5. What are the construction start and end dates for this project?

Ans: Contractor shall assume a 09/01/11 start date. Duration of construction has been assumed as 4-6 months. In no case shall construction period services run longer than six months from the start date.

6. Drawing EP102 shows new duct smoke detectors to be installed in the make-up air units.

Where does the wiring for these detectors originate? The drawings do not show an existing fire alarm control panel or a new panel.

Ans: It was intended that the duct smoke detectors shown for MAU-1, -2, -3 be used for shutdown of the MAU's; however, since the CFM of the MAU's is lower than mandated by code to have auto shutdown upon duct smoke detection, they have been deleted from.

See electrical sketches.

7. Addendum – 1 Drawing E-1, note-14 calls for saw cutting the existing foundation. New electric service conduits and a telephone conduit are to be installed into the existing building.

Is the GC responsible to perform the saw cutting?

Ans: Yes, the GC is responsible for this work. The intent of Div. 22, 23 and 26 filed

SMRT No. 10090-00 Addendum No. 2 Page 9 of 11 sub-bids is that the General Contractor is to carry cutting, patching, trenching, backfilling, painting and concrete work (pads, foundations, duct bank, etc.) required to perform the trade work. The trade contractors shall carry fire stop and access doors.

8. Door schedule AE611 calls for four 3-5" doors. Elevation F1 and floor plan show two single and one pair. Hardware set #1 is also for single doors. Are center doors a pair with a removable mullion?

Ans: Yes.

9. 084113 2.5 calls for medium stile doors. Door 109 on the door schedule is calling for a type

C door which would be either hollow metal or flush aluminum based on the elevation shown on AE611. Please clarify.

Ans: Provide flush aluminum per drawing AE611. Disregard medium stile statement in section 08 41 13 per clarifications above.

10. 084113 2.5 calls for medium stile doors with 3-1/2" rails. Elevation B on AE611 is showing

6" stiles. Which is correct?

Ans: Disregard medium stile statement in section 08 41 13 per clarifications above.

11. Please clarify the scope of painting in Assembly Hall 110:

a. If the north wall of 110 is “ETR”, but the north wall of Corridor 112 is painted, where do we stop painting? It’s the same wall.

Ans: Paint the entire north wall per AE601 drawing clarifications above.

b. If the north wall of 110 should be painted, should we also paint the east wall?

Ans: Yes. See AE601 drawing clarifications above.

c. Currently, there is glazed block wainscoting at all walls. Is this existing to remain, or will it be painted? If painted, please provide a paint system for glazed block.

Ans: Clean the block only. Do not paint.

d. Currently, there is a very large mechanical unit/duct in each corner of the room. The demo plans don’t indicate they are removed. Are they scheduled to be painted?

Ans: Paint each. See mechanical scope for modifications to unit in the SE corner.

12. The RFS calls for painting the east wall of Boiler Room 119. This room is currently unpainted. Please confirm that the east wall will be painted under the base bid.

Ans: Do not paint the east wall. See AE601 drawing clarifications above.

13. Please clarify whether Alternate #4 adds any painting to Boiler Room 119.

14. Detail E1/AE401 shows plywood at the floor of the mechanical platform above the new team rooms. Please clarify whether the plywood needs to be painted.

SMRT No. 10090-00 Addendum No. 2 Page 10 of 11

15. At existing walls to be painted, please clarify whether the existing doors and frames are also painted.

Ans: Do not paint stained wood doors and frames. Do paint hollow metal doors and frames.

16. Section 081113 Hollow Metal Doors and Frames, Pg. 4, 2.4, B, 4 calls for factory priming, but Pg. 6, 2.8, B calls for a two coat baked-on factory finish. Please clarify whether hollow metal doors and frames are field painted or factory finished.

Ans: Doors and frames to be factory primed and finished. See clarifications to section

08 11 13 above.

17. Section 081416 Flush Wood Doors, Pg. 1, 1.2, A, 2 says factory finishing is included in the section. Pg. 4, 2.5 says that doors are primed with stain and a first coat as per Section

099300. Please clarify whether new wood doors are factory finished or field finished.

Ans: New wood doors and frames to be shop finished. See clarifications to section 08 14

16 above.

18. There are existing steel angles visible at the exterior side of the windows. Please clarify whether these angles should be prepped and painted, and if so, whether the work would occur under the base bid or Alternate #2.

Ans: Prep and paint the angles as part of Alternate #2.

19. Specification 072100, Thermal Insulation, does not specify the thickness of the roof insulation. Drawing AE501 states that the minimum insulation thickness is 2”. What thickness is required?

Ans. Roof insulation is tapered with a minimum thickness of 2" and a slope of minimum 1/4" / ft. to drain. Thickness of insulation varies at ridges.

END OF ADDENDUM No. 2

Attachments:

Replacement section 05 50 00 METAL FABRICATIONS

New section 07 84 13 PENETRATION FIRESTOPPING

New section 08 31 13 ACCESS DOORS AND FRAMES

New section 22 35 00 DOMESTIC WATER HEAT EXCHANGERS

New section 23 34 23 POWER VENTILATORS

New section 23 81 26 SPLIT SYSTEM AIR CONDITIONERS.

New section 23 82 33 CONVECTORS

Replacement section 23 89 00 LOUVERS AND VENTS

Replacement drawing M-101 Mechanical Floor Plan

Replacement drawing M-401 Boiler Room Part Plans and Section

New drawing M-502 Mechanical Details

Replacement drawing M-601 Mechanical Schedules

SMRT No. 10090-00 Addendum No. 2 Page 11 of 11

Sketch No. A-1

Sketch No. A-2

Sketch No. A-3

Sketch No. A-4

Sketch No. M-1

Sketch No. M-2

Sketch No. M-3

Sketch No. P-1

Sketch No. P-2

Sketch No. P-3

Sketch No. P-4

Sketch No. P-5

Sketch No. E-1

Sketch No. E-2

Sketch No. E-3

Sketch No. E-4

Sketch No. E-5

Sketch No. E-6

Sketch No. E-7

CHICOPEE ARMORY REHABILITATION MMD PROJECT NO. 985101

CHICOPEE, MASSACHUSETTS RE-ISSUED FOR ADDENDUM NO.2 - 07/07/11

10090 METAL FABRICATIONS 055000 - 1

SECTION 055000

METAL FABRICATIONS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Steel framing and supports for overhead door and grilles.

2. Steel framing and supports for mechanical and electrical equipment.

3. Steel framing and supports for applications where framing and supports are not specified in other Sections.

4. Loose bearing and leveling plates for applications where they are not specified in other

Sections.

B. Products furnished, but not installed, under this Section:

1. Loose steel lintels.

2. Anchor bolts, steel pipe sleeves, slotted-channel inserts, and wedge-type inserts indicated to be cast into concrete or built into unit masonry.

3. Steel weld plates and angles for casting into concrete for applications where they are not specified in other Sections.

C. Related Sections:

1. Section 033000 "Cast-in-Place Concrete" for installing anchor bolts, steel pipe sleeves, slotted-channel inserts, wedge-type inserts, and other items cast into concrete.

2. Section 042000 "Unit Masonry" for installing loose lintels, anchor bolts, and other items built into unit masonry.

1.3 ACTION SUBMITTALS

A. Product Data: For the following:

1. Paint products.

2. Grout.

B. Shop Drawings: Show fabrication and installation details for metal fabrications.

10090 METAL FABRICATIONS 055000 - 2

1. Include plans, elevations, sections, and details of metal fabrications and their connections. Show anchorage and accessory items.

1.4 QUALITY ASSURANCE

A. Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel."

B. Welding Qualifications: Qualify procedures and personnel according to the following:

1. AWS D1.1/D1.1M, "Structural Welding Code - Steel."

1.5 PROJECT CONDITIONS

A. Field Measurements: Verify actual locations of walls and other construction contiguous with metal fabrications by field measurements before fabrication.

1.6 COORDINATION

A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint and coating manufacturers' written recommendations to ensure that shop primers and topcoats are compatible with one another.

B. Coordinate installation of anchorages. Furnish setting drawings, templates, and directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items with integral anchors, that are to be embedded in concrete or masonry. Deliver such items to Project site in time for installation.

PART 2 - PRODUCTS

2.1 METALS, GENERAL

A. Metal Surfaces, General: Provide materials with smooth, flat surfaces unless otherwise indicated. For metal fabrications exposed to view in the completed Work, provide materials without seam marks, roller marks, rolled trade names, or blemishes.

2.2 FERROUS METALS

A. Recycled Content of Steel Products: Postconsumer recycled content plus one-half of preconsumer recycled content not less than 25 percent.

B. Wide Flange Shapes: ASTM A992/ A 992M

C. Steel Plates, Shapes (except wide flange), and Bars: ASTM A 36/A 36M.

D. Steel Tubing: ASTM A 500, cold-formed steel tubing.

10090 METAL FABRICATIONS 055000 - 3

E. Steel Pipe: ASTM A 53/A 53M, standard weight (Schedule 40) unless otherwise indicated.

F. Slotted Channel Framing: Cold-formed metal box channels (struts) complying with MFMA-4.

1. Size of Channels: 1-5/8 by 1-5/8 inches (41 by 41 mm).

2. Material: Galvanized steel, ASTM A 653/A 653M, structural steel, Grade 33

(Grade 230)], with G90 (Z275) coating; 0.108-inch (2.8-mm) nominal thickness.

2.3 FASTENERS

A. General: Unless otherwise indicated, provide Type 304 stainless-steel fasteners for exterior use and zinc-plated fasteners with coating complying with ASTM B 633 or ASTM F 1941

(ASTM F 1941M), Class Fe/Zn 5, at exterior walls. Select fasteners for type, grade, and class required.

B. Steel Bolts and Nuts: Regular hexagon-head bolts, ASTM A 307, Grade A (ASTM F 568M, Property Class 4.6); with hex nuts, ASTM A 563 (ASTM A 563M); and, where indicated, flat washers.

C. Steel Bolts and Nuts: Regular hexagon-head bolts, ASTM A 325, Type 3 (ASTM A 325M, Type 3); with hex nuts, ASTM A 563, Grade C3 (ASTM A 563M, Class 8S3); and, where indicated, flat washers.

D. Anchor Bolts: ASTM F 1554, Grade 36, of dimensions indicated; with nuts, ASTM A 563;

and, where indicated, flat washers.

1. Hot-dip galvanize or provide mechanically deposited, zinc coating where item being fastened is indicated to be galvanized.

E. Eyebolts: ASTM A 489.

F. Machine Screws: ASME B18.6.3 (ASME B18.6.7M).

G. Lag Screws: ASME B18.2.1 (ASME B18.2.3.8M).

H. Wood Screws: Flat head, ASME B18.6.1.

I. Plain Washers: Round, ASME B18.22.1 (ASME B18.22M).

J. Lock Washers: Helical, spring type, ASME B18.21.1 (ASME B18.21.2M).

K. Anchors, General: Anchors capable of sustaining, without failure, a load equal to six times the load imposed when installed in unit masonry and four times the load imposed when installed in concrete, as determined by testing according to ASTM E 488, conducted by a qualified independent testing agency.

L. Cast-in-Place Anchors in Concrete: Either threaded type or wedge type unless otherwise indicated; galvanized ferrous castings, either ASTM A 47/A 47M malleable iron or

ASTM A 27/A 27M cast steel. Provide bolts, washers, and shims as needed, all hot-dip galvanized per ASTM F 2329.

10090 METAL FABRICATIONS 055000 - 4

M. Post-Installed Anchors: Torque-controlled expansion anchors or chemical anchors.

1. Material for Interior Locations: Carbon-steel components zinc plated to comply with

ASTM B 633 or ASTM F 1941 (ASTM F 1941M), Class Fe/Zn 5, unless otherwise indicated.

2. Material for Exterior Locations and Where Stainless Steel is Indicated: Alloy Group 1

(A1) stainless-steel bolts, ASTM F 593 (ASTM F 738M), and nuts, ASTM F 594

(ASTM F 836M).

N. Slotted-Channel Inserts: Cold-formed, hot-dip galvanized-steel box channels (struts) complying with MFMA-4, 1-5/8 by 7/8 inches (41 by 22 mm) by length indicated with anchor straps or studs not less than 3 inches (75 mm) long at not more than 8 inches (200 mm) o.c. Provide with temporary filler and tee-head bolts, complete with washers and nuts, all zinc-plated to comply with ASTM B 633, Class Fe/Zn 5, as needed for fastening to inserts.

2.4 MISCELLANEOUS MATERIALS

A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded.

B. Low-Emitting Materials: Paints and coatings shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the

Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental

Chambers."

C. Shop Primers: Provide primers that comply with Section 099113 "Exterior Painting."

Section 099123 "Interior Painting."

D. Galvanizing Repair Paint: High-zinc-dust-content paint complying with SSPC-Paint 20 and compatible with paints specified to be used over it.

E. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187.

F. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107. Provide grout specifically recommended by manufacturer for interior and exterior applications.

2.5 FABRICATION, GENERAL

A. Shop Assembly: Preassemble items in the shop to greatest extent possible. Disassemble units only as necessary for shipping and handling limitations. Use connections that maintain structural value of joined pieces. Clearly mark units for reassembly and coordinated installation.

B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch (1 mm) unless otherwise indicated. Remove sharp or rough areas on exposed surfaces.

10090 METAL FABRICATIONS 055000 - 5

C. Form bent-metal corners to smallest radius possible without causing grain separation or otherwise impairing work.

D. Form exposed work with accurate angles and surfaces and straight edges.

E. Weld corners and seams continuously to comply with the following:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after finishing and contour of welded surface matches that of adjacent surface.

F. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners or welds where possible. Where exposed fasteners are required, use Phillips flat-head

(countersunk) fasteners unless otherwise indicated. Locate joints where least conspicuous.

G. Fabricate seams and other connections that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate.

H. Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware, screws, and similar items.

I. Provide for anchorage of type indicated; coordinate with supporting structure. Space anchoring devices to secure metal fabrications rigidly in place and to support indicated loads.

1. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded steel strap anchors, 1/8 by 1-1/2 inches (3.2 by 38 mm), with a minimum 6-inch (150-mm) embedment and 2-inch (50-mm) hook, not less than 8 inches

(200 mm) from ends and corners of units and 24 inches (600 mm) o.c., unless otherwise indicated.

2.6 MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Provide steel framing and supports not specified in other Sections as needed to complete the Work.

B. Fabricate units from steel shapes, plates, and bars of welded construction unless otherwise indicated. Fabricate to sizes, shapes, and profiles indicated and as necessary to receive adjacent construction.

1. Fabricate units from slotted channel framing where indicated.

2. Furnish inserts for units installed after concrete is placed.

C. Galvanize miscellaneous framing and supports where indicated.

10090 METAL FABRICATIONS 055000 - 6

2.7 LOOSE BEARING AND LEVELING PLATES

A. Provide loose bearing and leveling plates for steel items bearing on masonry or concrete construction. Drill plates to receive anchor bolts and for grouting.

B. Galvanize plates.

2.8 LOOSE STEEL LINTELS

A. Fabricate loose steel lintels from steel angles and shapes of size indicated for openings and recesses in masonry walls and partitions at locations indicated. Fabricate in single lengths for each opening unless otherwise indicated. Weld adjoining members together to form a single unit where indicated.

B. Size loose lintels to provide bearing length at each side of openings equal to 1/12 of clear span but not less than 8 inches (200 mm) unless otherwise indicated.

C. Galvanize loose steel lintels located in exterior walls.

2.9 STEEL WELD PLATES AND ANGLES

A. Provide steel weld plates and angles not specified in other Sections, for items supported from concrete construction as needed to complete the Work. Provide each unit with no fewer than two integrally welded steel strap anchors for embedding in concrete.

2.10 FINISHES, GENERAL

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes.

B. Finish metal fabrications after assembly.

C. Finish exposed surfaces to remove tool and die marks and stretch lines, and to blend into surrounding surface.

2.11 STEEL AND IRON FINISHES

A. Galvanizing: Hot-dip galvanize items as indicated to comply with ASTM A 153/A 153M for steel and iron hardware and with ASTM A 123/A 123M for other steel and iron products.

1. Do not quench or apply post galvanizing treatments that might interfere with paint adhesion.

B. Shop prime iron and steel items not indicated to be galvanized unless they are to be embedded in concrete, sprayed-on fireproofing, or masonry, or unless otherwise indicated.

1. Shop prime with primers specified in Section 099113 "Exterior Painting" or primers specified in Section 099123 "Interior Painting" unless zinc-rich primer is indicated.

10090 METAL FABRICATIONS 055000 - 7

C. Preparation for Shop Priming: Prepare surfaces to comply with requirements indicated below:

1. Exterior Items: SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."

2. Items Indicated to Receive Zinc-Rich Primer: SSPC-SP 6/NACE No. 3, "Commercial

Blast Cleaning."

3. Other Items: SSPC-SP 3, "Power Tool Cleaning."

D. Shop Priming: Apply shop primer to comply with SSPC-PA 1, "Paint Application Specification

No. 1: Shop, Field, and Maintenance Painting of Steel," for shop painting.

1. Stripe paint corners, crevices, bolts, welds, and sharp edges.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, alignment, and elevation; with edges and surfaces level, plumb, true, and free of rack; and measured from established lines and levels.

B. Fit exposed connections accurately together to form hairline joints. Weld connections that are not to be left as exposed joints but cannot be shop welded because of shipping size limitations.

Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication and are for bolted or screwed field connections.

C. Field Welding: Comply with the following requirements:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after finishing and contour of welded surface matches that of adjacent surface.

D. Fastening to In-Place Construction: Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction. Provide threaded fasteners for use with concrete and masonry inserts, toggle bolts, through bolts, lag screws, wood screws, and other connectors.

E. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construction.

3.2 INSTALLING MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Install framing and supports to comply with requirements of items being supported, including manufacturers' written instructions and requirements indicated on Shop Drawings.

10090 METAL FABRICATIONS 055000 - 8

B. Anchor supports for operable partitions securely to and rigidly brace from building structure.

C. Support steel girders on solid grouted masonry, concrete, or steel pipe columns. Secure girders with anchor bolts embedded in grouted masonry or concrete or with bolts through top plates of pipe columns.

1. Where grout space under bearing plates is indicated for girders supported on concrete or masonry, install as specified in "Installing Bearing and Leveling Plates" Article.

3.3 INSTALLING THRESHOLDS

A. Seal thresholds exposed to exterior with elastomeric sealant complying with Section 079200

"Joint Sealants" to provide a watertight installation.

3.4 ADJUSTING AND CLEANING

A. Touchup Painting: Cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint are specified in Section 099113 "Exterior Painting." or

Section 099123 "Interior Painting."

B. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply with ASTM A 780.

END OF SECTION 055000

CHICOPEE, MASSACHUSETTS ISSUED FOR ADDENDUM NO.2 - 07/07/11

PENETRATION FIRESTOPPING 078413 - 1

SECTION 078413

PENETRATION FIRESTOPPING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Penetrations in fire-resistance-rated walls.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for penetration firestopping.

1.4 QUALITY ASSURANCE

A. Fire-Test-Response Characteristics: Penetration firestopping shall comply with the following requirements:

1. Penetration firestopping tests are performed by a qualified testing agency acceptable to authorities having jurisdiction.

2. Penetration firestopping is identical to those tested per testing standard referenced in

"Penetration Firestopping" Article. Provide rated systems complying with the following requirements:

a. Penetration firestopping products bear classification marking of qualified testing and inspecting agency.

b. Classification markings on penetration firestopping correspond to designations listed by the following:

1) UL in its "Fire Resistance Directory."

B. Concealed Inspections: Do not cover fire-resistive systems with other construction materials until Owner's inspection agency and authorities having jurisdiction have examined each installation.

PENETRATION FIRESTOPPING 078413 - 2

1.5 PROJECT CONDITIONS

A. Environmental Limitations: Do not install penetration firestopping when ambient or substrate temperatures are outside limits permitted by penetration firestopping manufacturers or when substrates are wet because of rain, frost, condensation, or other causes.

B. Install and cure penetration firestopping per manufacturer's written instructions using natural means of ventilations or, where this is inadequate, forced-air circulation.

1.6 COORDINATION

A. Coordinate construction of openings and penetrating items to ensure that penetration firestopping is installed according to specified requirements.

B. Coordinate sizing of sleeves, openings, core-drilled holes, or cut openings to accommodate penetration firestopping.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

1. A/D Fire Protection Systems Inc.

2. Grace Construction Products.

3. Hilti, Inc.

4. Johns Manville.

5. Nelson Firestop Products.

6. NUCO Inc.

7. Passive Fire Protection Partners.

8. RectorSeal Corporation.

9. Specified Technologies Inc.

10. 3M Fire Protection Products.

11. Tremco, Inc.; Tremco Fire Protection Systems Group.

12. USG Corporation.

2.2 PENETRATION FIRESTOPPING

A. Provide penetration firestopping that is produced and installed to resist spread of fire according to requirements indicated, resist passage of smoke and other gases, and maintain original fire-resistance rating of construction penetrated. Penetration firestopping systems shall be compatible with one another, with the substrates forming openings, and with penetrating items if any.

B. Penetrations in Fire-Resistance-Rated Walls: Provide penetration firestopping with ratings determined per ASTM E 814 or UL 1479, based on testing at a positive pressure differential of

0.01-inch wg (2.49 Pa).

PENETRATION FIRESTOPPING 078413 - 3

1. Fire-resistance-rated walls include fire walls ,fire-barrier walls, smoke-barrier walls and fire partitions.

2. F-Rating: Not less than the fire-resistance rating of constructions penetrated.

C. W-Rating: Provide penetration firestopping showing no evidence of water leakage when tested according to UL 1479.

D. Exposed Penetration Firestopping: Provide products with flame-spread and smoke-developed indexes of less than 25 and 450, respectively, as determined per ASTM E 84.

E. VOC Content: Penetration firestopping sealants and sealant primers shall comply with the following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA

Method 24):

1. Sealants: 250 g/L.

2. Sealant Primers for Nonporous Substrates: 250 g/L.

3. Sealant Primers for Porous Substrates: 775 g/L.

F. Accessories: Provide components for each penetration firestopping system that are needed to install fill materials and to maintain ratings required. Use only those components specified by penetration firestopping manufacturer and approved by qualified testing and inspecting agency for firestopping indicated.

1. Permanent forming/damming/backing materials, including the following:

a. Slag-wool-fiber or rock-wool-fiber insulation.

b. Sealants used in combination with other forming/damming/backing materials to prevent leakage of fill materials in liquid state.

c. Fillers for sealants.

2. Temporary forming materials.

3. Substrate primers.

4. Collars.

5. Steel sleeves.

2.3 FILL MATERIALS

A. Cast-in-Place Firestop Devices: Factory-assembled devices for use in cast-in-place concrete floors and consisting of an outer metallic sleeve lined with an intumescent strip, a radial extended flange attached to one end of the sleeve for fastening to concrete formwork, and a neoprene gasket.

B. Latex Sealants: Single-component latex formulations that do not re-emulsify after cure during exposure to moisture.

C. Firestop Devices: Factory-assembled collars formed from galvanized steel and lined with intumescent material sized to fit specific diameter of penetrant.

D. Intumescent Composite Sheets: Rigid panels consisting of aluminum-foil-faced elastomeric sheet bonded to galvanized-steel sheet.

PENETRATION FIRESTOPPING 078413 - 4

E. Intumescent Putties: Nonhardening dielectric, water-resistant putties containing no solvents, inorganic fibers, or silicone compounds.

F. Intumescent Wrap Strips: Single-component intumescent elastomeric sheets with aluminum foil on one side.

G. Mortars: Prepackaged dry mixes consisting of a blend of inorganic binders, hydraulic cement, fillers, and lightweight aggregate formulated for mixing with water at Project site to form a nonshrinking, homogeneous mortar.

H. Pillows/Bags: Reusable heat-expanding pillows/bags consisting of glass-fiber cloth cases filled with a combination of mineral-fiber, water-insoluble expansion agents, and fire-retardant additives. Where exposed, cover openings with steel-reinforcing wire mesh to protect pillows/bags from being easily removed.

2.4 MIXING

A. For those products requiring mixing before application, comply with penetration firestopping manufacturer's written instructions for accurate proportioning of materials, water (if required), type of mixing equipment, selection of mixer speeds, mixing containers, mixing time, and other items or procedures needed to produce products of uniform quality with optimum performance characteristics for application indicated.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions, with Installer present, for compliance with requirements for opening configurations, penetrating items, substrates, and other conditions affecting performance of the Work.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Surface Cleaning: Clean out openings immediately before installing penetration firestopping to comply with manufacturer's written instructions and with the following requirements:

1. Remove from surfaces of opening substrates and from penetrating items foreign materials that could interfere with adhesion of penetration firestopping.

2. Clean opening substrates and penetrating items to produce clean, sound surfaces capable of developing optimum bond with penetration firestopping. Remove loose particles remaining from cleaning operation.

3. Remove laitance and form-release agents from concrete.

B. Priming: Prime substrates where recommended in writing by manufacturer using that manufacturer's recommended products and methods. Confine primers to areas of bond; do not allow spillage and migration onto exposed surfaces.

PENETRATION FIRESTOPPING 078413 - 5

C. Masking Tape: Use masking tape to prevent penetration firestopping from contacting adjoining surfaces that will remain exposed on completion of the Work and that would otherwise be permanently stained or damaged by such contact or by cleaning methods used to remove stains.

Remove tape as soon as possible without disturbing firestopping's seal with substrates.

3.3 INSTALLATION

A. General: Install penetration firestopping to comply with manufacturer's written installation instructions and published drawings for products and applications indicated.

B. Install forming materials and other accessories of types required to support fill materials during their application and in the position needed to produce cross-sectional shapes and depths required to achieve fire ratings indicated.

1. After installing fill materials and allowing them to fully cure, remove combustible forming materials and other accessories not indicated as permanent components of firestopping.

C. Install fill materials for firestopping by proven techniques to produce the following results:

1. Fill voids and cavities formed by openings, forming materials, accessories, and penetrating items as required to achieve fire-resistance ratings indicated.

2. Apply materials so they contact and adhere to substrates formed by openings and penetrating items.

3. For fill materials that will remain exposed after completing the Work, finish to produce smooth, uniform surfaces that are flush with adjoining finishes.

3.4 IDENTIFICATION

A. Identify penetration firestopping with preprinted metal or plastic labels. Attach labels permanently to surfaces adjacent to and within 6 inches (150 mm) of firestopping edge so labels will be visible to anyone seeking to remove penetrating items or firestopping. Use mechanical fasteners or self-adhering-type labels with adhesives capable of permanently bonding labels to surfaces on which labels are placed. Include the following information on labels:

1. The words "Warning - Penetration Firestopping - Do Not Disturb. Notify Building

Management of Any Damage."

2. Contractor's name, address, and phone number.

3. Designation of applicable testing and inspecting agency.

4. Date of installation.

5. Manufacturer's name.

6. Installer's name.

3.5 FIELD QUALITY CONTROL

A. Owner will engage a qualified testing agency to perform tests and inspections.

PENETRATION FIRESTOPPING 078413 - 6

B. Where deficiencies are found or penetration firestopping is damaged or removed because of testing, repair or replace penetration firestopping to comply with requirements.

C. Proceed with enclosing penetration firestopping with other construction only after inspection reports are issued and installations comply with requirements.

3.6 CLEANING AND PROTECTION

A. Clean off excess fill materials adjacent to openings as the Work progresses by methods and with cleaning materials that are approved in writing by penetration firestopping manufacturers and that do not damage materials in which openings occur.

B. Provide final protection and maintain conditions during and after installation that ensure that penetration firestopping is without damage or deterioration at time of Substantial Completion.

If, despite such protection, damage or deterioration occurs, immediately cut out and remove damaged or deteriorated penetration firestopping and install new materials to produce systems complying with specified requirements.

END OF SECTION 078413

CHICOPEE, MASSACHUSETTS ISSUED FOR ADDENDUM NO. 2 - 07/07/11

ACCESS DOORS AND FRAMES 083113 - 1

SECTION 083113

ACCESS DOORS AND FRAMES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Access doors and frames for walls and ceilings.

2. Floor access doors and frames.

B. Related Requirements:

1. Section 233300 "Air Duct Accessories" for heating and air-conditioning duct access doors.

1.3 ALLOWANCES

A. Access doors and frames…