Pre-Bid RFI Log - 1052 SIM Renovation 12.1.2020.pdf

Date: RFI No.

RFP

Reference

(Sect/Para/Pag e)

QUESTION GOVERNMENT RESPONSE

11/18/2020 1

Is the existing ceiling bar a T-bar or Hard lid ceiling? Existing ceiling is suspended drop ceiling with steel grid and acoustical tiles as detailed on the drawings and SOW.

11/18/2020 2

Do you know the type of gear that is existing?

The make and model and voltage of the existing electrical panels.

See attached pictures RFI #2 elec#1.jpg RFI #2 elec#2.jpg RFI #2 elec#3.jpg RFI #2 elec#4.jpg

11/18/2020 3 Since the drawings do not have a scale do you know the length that the wire and conduit needs to be ran?

The length from new transformer to new panel is approximately 120'. This must be field verified by contractors.

11/19/2020 4

Is the SIM unit provided with the cord and plug or is this under the electrician's scope?

Do you know the approx. length from the unit to the receptacle.

The simulator will be installed by others. This project only includes the install of the electrical as layed out in the SOW and drawings which includes the plug for the simulator servers.

11/19/2020 5

There are no specifications attached to the solicitation in http://www.beta.sam.gov.

Will specifications be provided in a solicitation amendment?

See attached Specs.

202011 Simulator Room B1052 Specs.pdf

11/19/2020 6

Form 1442 Item 11, states “The Contractor shall begin performance within 10 calendar days and complete it within 180 calendar days after receiving.” FAR 52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK on page 14 of 51 states, “The Contractor shall be required to (a) commence work under this contract within 30 calendar days after the date the Contractor receives the notice to proceed.” Is 10 or 30 days correct for commencing work?

It will be 30 days. An amendment is to follow.

11/23/2020 7

Will the new Mini-splits be required to be tied in to the building automation system or will they be stand alone t-stats provided by manufacturer?2. is test and balancing of changed ductwork to be provided?

The mini-splits will not be tied into the building automation system, but will have wall mounted thermostats as called out in the SOW.

No testing and balancing will be required for the reconfigured ductwork, however a balancing damper will be needed to adjust for the proper air flow to the duct sock.

11/23/2020 8

The drawings and scope of work call out the dimensions for the contract mechanical pad, but do not state requirements for reinforcement. Is this pad to receive reinforcement or should the pad be constructed without reinforcement? If reinforcement is required, please clarify the requirement so Offerors can price the requirements.

Wire mesh reinforcing will be required. Use 6"x 6" 10 gauge wire mesh.

11/23/2020 9 The drawings and scope of work state to run condensate lines back to the janitors closet. Please clarify which janitor’s closet.

The janitors closet is across the hall in room 143 shown on the drawings.

11/23/2020 10

Are the condensate lines that are to be run back to the janitor’s closet required for the mini split cassette units?

Or, are offerors to provide condensate lines for the two outside condensing units and run those condensate lines back to the janitor’s closet as well. If yes, should those lines be ran above ground or below ground?

Yes the condensate drain lines are for the cassette units.

11/23/2020 11

Please confirm that there is no requirement for Testing, Adjusting and Balancing (TAB) nor any requirements for commissioning on any systems or components or equipment provided on this project.

No TAB or commissioning is required.

11/23/2020 12

Please confirm that the government will be responsible for removing any and all end‐user equipment prior to contractor mobilizing onsite and that offerors should not include any provisions for relocating, storing or moving end‐user equipment from Room 145.

Confimred

11/23/2020 13

Regarding the fire alarm work, please confirm that offerors are to include costs and provisions for conducting a pre‐test of the existing system to ensure the functionality of the existing system prior to modifications required within this SOW.

A pretest would be a good idea to show all parts of the existing system are functional.

11/23/2020 14 Please provide the existing fire alarm manufacturer, as well as the MNS manufacture, that offerors are to modify and tie into.

FA is Monaco, and MNS is Wheellock

Pre-Bid RFI Log for W50S8T-21-B-0002 1052 SIM Room Renovation

Reference

(Sect/Para/Pag e)

QUESTION GOVERNMENT RESPONSE

Pre-Bid RFI Log for W50S8T-21-B-0002 1052 SIM Room Renovation

11/23/2020 15 Please confirm simulator install is NIC. Simulator is not included. The Simulator will be installed after this project is completed.

11/23/2020 16

AD‐101 ‐‐ There are letters in circle above the Keyed Notes. What do these letters represent?

M= Mass Notification Device sp= A&V speaker sm= Smoke/ heat FA device

11/23/2020 17 What is the elevation of the roof deck in the room? According to the as-builts the roof deck is 22' on theNorth side, and 18' on the South side.

11/23/2020 18

SOW 2.a.ii.3 (new construction architectural) identifies User ‐furnished cipher lock.

Are there any electrical requirement for the cipher lock? Who is installing the cipher lock?

Contractor shall supply and install the cipher lock.

Coordinate correct door set up when ordering wood doors.

11/23/2020 19

SOW 2.a.ii.4 (new construction architectural) describes a cipher lock. Is this the same cipher lock identified in SOW 2.a.ii.3 or is this a new Contractor‐furnished cipher lock?

This is the same cipher lock identified. The term user provided is incorrect, and it shall be conctractor installed, and furnished.

11/23/2020 20

SOW 2.a.ii.5 (new construction architectural) states, “Remove door hardware for existing east door on both sim room and hallway sides and replace with blank push plates.” There are two (2) existing 3070 door assemblies on the north side of the room. A‐101 only indicates work on the westernmost north door (Keyed Note 7). Are both north door assemblies to be completed as described in SOW 2.a.ii.5 or just the westernmost north door?

The drawings are correct and the contractor will only be required to due the work indicated in SOW 2.a.ii.5 (new construction Acrchitectural)on the western most north door in the room. The other door will remain as is.

11/23/2020 21

SOW 2.a.iv.2 (new construction architectural) states to paint exposed ceiling and structure black. Does this include any conduits, ductwork, etc., located within Room 145?

Yes.

11/23/2020 22 SOW 2.a.v.1 (new construction architectural) has a question about glow ‐in‐the‐dark signs. Are glow‐in‐the‐dark signs required?

Yes glow in the dark signs are required. The question mark at the end of the statement is a grammatical error, and should be a period.

11/23/2020 23 SOW 2.b.v (new construction electrical) is currently an incomplete sentence. Please advise accordingly.

The panel shall have 20 spaces. The and at the end is a grammatical error.

11/23/2020 24

SOW 2.a.ii & iv (new construction FA/FS) identifies FPE shop drawings. Is NICET shop drawings acceptable?

For new or modified systems, working (shop) drawings and calculations must be prepared by an individual that has obtained National Institute for Certification in Engineering Technologies, Automatic Sprinkler Systems, Level III certification or Special Hazards Suppression Systems, Level IV certification, as applicable to the project. The QFPE (Qualified Fire Protection Engineer) must review the shop drawings, hydraulic calculations and material submittals.

The shop drawings must bear the Review Stamp of the QFPE prior to submitting the fire extinguishing system shop drawings.

11/23/2020 25 Please identify the three symbols above the keyed notes on Ad‐101. See #16

11/23/2020 26

AD‐102 shows two existing door openings. A‐101 does not show those door openings.

On A‐101 east wall the existing door identifies keyed note #7 “put blank cover in place of door hardware”, there is nothing shown for the other door. Can you please identify what we are doing with these two doors.

The door with keyed note 7 will have the hardware removed, and blank covers installed. The other door will remain as is. See RFI #20 for more detail.

11/23/2020 27 Would it be possible to schedule an additional site visit to review the existing Fire Alarm and Mass Notification System?

Yes.

11/23/2020 28

What is the fire alarm panel manufacturer and model number? Can we get pictures of the panel outside and internal too?

Yes. See attached pictures.

RFI #28 FA #1.jpg RFI #28 FA #2.jpg RFI #28 FA #3.jpg RFI #28 FA #4.jpg RFI #28 FA #5.jpg RFI #28 FA #6.jpg RFI #28 FA #7.jpg RFI #28 FA #8.jpg RFI #28 FA #9.jpg

11/23/2020 29 Is the Mass Notification a separate system or part of the fire alarm system? If separate systems, can we get pictures of the panel outside and internal too?

The MNS and FA are separate systems that are tied in to each other. See pics RFI #28.

11/23/2020 30 Are there Fire Alarm and separate Mass Notification Strobe Circuit Power Supplies?

What are the manufacture and model numbers of the NAC Power Supplies? Can we get pictures of the panel outside and internal too?

See pics RFI #28. NAC controls are separate for both strobe and speaker.

Reference

(Sect/Para/Pag e)

QUESTION GOVERNMENT RESPONSE

Pre-Bid RFI Log for W50S8T-21-B-0002 1052 SIM Room Renovation

11/23/2020 31

Does the facility have Clear strobes with “FIRE” wording plus amber strobes with “ALERT” wording? If so are they on a white base with RED lettering or a red base with White lettering? Can we get pictures of the existing Notification appliances that identify the manufacturer and model numbers?

See pics RFI #28.

11/23/2020 32 What is the manufacturer and model number of any existing initiating devices in the existing project area? Can we get pictures of these existing initiating devices?

There are no initiating devices in the Simulator Room.

11/23/2020 33 Are there requirement for any VESDA type or other sensitive (or specialty) smoke detections or initiating devices for the new SIM space?

No, but this should be confirmed by a QFPE

11/23/2020 34 Are there any special fire protection releasing systems, pre-action systems, clean agent systems, or other specialty systems required for the SIM room?

No.

11/23/2020 35 Are the requirements of UFC 4-021-01 applicable for this project? If so, what version? And is ECB 2018-17 applicable for this project?

Yes. UFC 04-021-01 date 9 April 2008.

No ECB 2018-17 is NA

11/23/2020 36 Are the requirements of UFC 3-600-01 applicable for this project? If so, what version?

Yes. UFC 3-600-01 dated 26 September 2006 Change 3.

11/23/2020 37

Are there any other building codes and/or facility standards or requirements for this project?

No.

11/23/2020 39 Are there any fire alarm or mass notification system permits required? If so can you identify any organizations that will require permits for this project?

No.

11/23/2020 40 Please clarify the Fire Alarm Panel Brand and model number currently serving Room 145 at B.1052.

See pics RFI #28. Monaco M2, Converted BTX-MNS

11/23/2020 41 Per note 8 on sheet AD-101, the AV speakers are to be removed. Are these to be turned over to the government or thrown away?

Turned over to the government.

11/23/2020 42 Per note 5 on sheet M-101, mechanical contractor is to install new ceiling hung mini split cassette units. Will these require individual power or will these be powered from exterior mini split units?

Typically on split system the outside units provide power to the inside cassette units.

11/23/2020 43 Per note 7 on sheet M-101, Condensate lines are to be pumped and routed to janitors closets. Will these pumps require power?

pumps shall be installed per mini split manufacturer reccomendations. Yes they are typically powered form the outside unit or the cassette.

11/23/2020 44 Per note 4 on sheet E-101, Install ground rod and bus bar near the new SIM racks.

Are there any existing utilities underground in the SIM rack location?

No.

11/23/2020 45

Per drawing E-102, the one line shows a new transformer labeled “T4”. Will this also require a ground rod? Are there any existing underground utilities in the area the transformer will be installed.

Grounding should be done in compliance with Electrical codes, and would not require a separate ground rod, but whould be grounded to an already existing ground rod/plate or grounded to panel EMDP from which it is fed.

11/23/2020 46 Per drawing E-102, the current Electrical one-line located in the top right corner of the page does not show any wire/conduit sizes. Please clarify.

Wire and conduit shall be sized appropriate for the voltage and the load. Qualified electrical installers will know the size based on common electrical practices.

11/23/2020 47

RFP SOW 2.a.ii. paragraph (3) states User provided Cypher. However paragraph (4) states place a cypher lock on the right hand door and cypher lock to be dormakaba with removeable Best core. Please clarify if User or Contractor is providing the cypher lock. Please also specify the type of dormakaba cypher lock required.

Contractor provided and installed. Simplex8100.

11/23/2020 48

RFP SOW 2.a.iv paragraph (3) states repaired sections of wall in corridor 144 shall be painted to match existing hallways. Please clarify extent of this SOW. Is feathering permitted, or will any repaired walls require painting from corner to corner.

Feathering will be permitted. The intent is to have no noticeable drmarkation line of repaired versus existing walls.

11/23/2020 49 RFP SOW 2.b.v. appears to be missing information. It states Panel to have at least 20 spaces and remove the and. See RFI #23.

11/23/2020 50 Is new ductwork to be painted black to match structure? Yes.

11/23/2020 51 Are both 3’0 x 7’0 corridor doors to remain in place with hardware covered with blanks? If doors remain, are they to be painted?

Both doors remain, only the western most door will have any work done to it. See RFI #20&26. Do not paint the wood doors black.

11/23/2020 52 RFP SOW 2.a.ii under Fire Alarm/Suppression states shop drawings or to be signed and sealed by a licensed FPE and or qualified Fire protection agency. Please clarify definition of “qualified”. Would a NICET Level 3 be acceptable?

NICET is acceptable for the design, but still needs a QFPE stamp after review.

11/23/2020 53 RFP SOW 2.a.i paragraph (7) lists Access Control System (ACS) equipment.

However there is nothing in the SOW describing an ACS. Please clarify the extent of the SOW, if any, in regards to an ACS.

cipher locks are the ACS.

11/23/2020 54 Please confirm all racks, DMO rack, GSA Safe, Role Player & IOS workstations, and Dome Simulator shown on G-102 are Government Furnished and Government Installed.

Confirmed.

11/23/2020 55 Please confirm there is no screen of any kind required at the condensing unit mechanical pad.

Confirmed.

11/23/2020 56 RFP SOW 2.a.i paragraph (4) states to install a 2” metal pipe to hang a blackout curtain. Please advise if curtain is to be provided by Contractor. If so, please provide specifications for curtain.

Yes curtain is government furnished.

Reference

(Sect/Para/Pag e)

QUESTION GOVERNMENT RESPONSE

Pre-Bid RFI Log for W50S8T-21-B-0002 1052 SIM Room Renovation

11/23/2020 57 With Bobby Woods certification is he qualified to do the shop drawings

NICET certification is acceptable. According to UFC must have a review and stamp by a QFPE (Qualified Fire Protection Engineer)

12/1/2020 58

Is the SIM unit provided with the cord and plug or is this under the electrician's scope? Simulator is to be installed by others. The plug is to be installed by the controactor on this project as outlined in the SOW and drawings. Thank you.

12/1/2020 59 Do you know the approx. length from the unit to the receptacle? length from the sim server to the receptacle is unknown and not needed for this project.

12/1/2020 60 Is the existing ceiling a T-bar or Hard lid ceiling? See RFI #1 12/1/2020 61 Do you know the type of equipment that is existing? See RFI #2

12/1/2020 62 Since the drawings do not have a scale do you know the length that the wire and conduit needs to be ran?

See RFI #3

12/1/2020 63 Can you get information on the existing EMDP panel specs such as ratings? See pics RFI #2

12/1/2020 64

Also, can you get more information on the new EL3 panel specs, AIC rating, MB or MLO, what breakers do they want in it and do the HVAC disconnects need to be fused?

Panel is to bee 225amp with a Main Circuit Breaker. Need to have at least 20 spaces in the panel. Need circuit breakers for the 3P100A plug for sim as described in the SOW, 2P30A disconnects on condensing units. Disconnects are to be fused type mounted outside near the condensing units, and shall be NEMA3R type.

12/1/2020 65

Drawings and SOW mention smoke and heat detectors. Are these really there in a fully sprinkled facility?

There are no smoke and heat detectors in the ceiling. There are occupancy sensors for the lights that will need to be removed and reinstalled after the ceiling is demolished.

12/1/2020 66 There is another Fire and MNS strobe on the hallway side of where the wall is being demolished. Are the contractors supposed to relocate?

Yes. The device should be relocated based on the direction of the FA shop drawings being provided.

INDEX

PAGE

SECTION 02050 – DEMOLITION 02050--1-3

SECTION 02070 – SELECTIVE DEMOLITION 02070--1-6

SECTION 07270 – FIRESTOPPING 07270--1-8

SECTION 08710 – FINISH HARDWARE 08710--1-12

SECTION 09255 – GYPSUM BOARD ASSEMBLIES 09255--1-12

SECTION 09260 – METAL STUDS AND GYPSUM BOARD ASSEMBLIES 09260--1-8

SECTION 09511 – ACOUSTICAL PANEL CEILINGS 09511--1-7

SECTION 09680 – CARPET 09680--1-6

SECTION 09900 – PAINTING 09900--1-12

SECTION 15010 - BASIC MECHANICAL REQUIREMENTS 15010--1-14

SECTION 15030 - ELECTRICAL REQUIREMENTS FOR MECHANICAL EQUIPMENT 15030--1-5

SECTION 15050 - BASIC MECHANICAL MATERIALS AND METHODS 15050--1-11

SECTION 15340 - FIRE DETECTION ALARM AND EQUIPMENT ACTIVATION SYSTEMS 15340--1-22

SECTION 15891 - METAL DUCTWORK 15891--1-10

SECTION 15910 - DUCTWORK ACCESSORIES 15910--1-12

SECTION 15932 - AIR OUTLETS AND INLETS 15932--1-4

SECTION 15990 - TESTING, ADJUSTING, AND BALANCING 15990-1-5

SECTION 16050 - BASIC METHODS AND REQUIREMENTS (ELECTRICAL) 16050--1-19

SECTION 16110 - RACEWAY SYSTEMS 16110--1-15

i

SECTION 16120 - WIRES AND CABLES, LOW VOLTAGE (600 Voltsand Below) 16120--1-15

SECTION 16140 - WIRING DEVICES 16140--1-4

SECTION 16450 - GROUNDING 16450--1-5

SECTION 16460 - TRANSFORMERS (GENERAL PURPOSE) 16460--1-5

SECTION 16462 - DISTRIBUTION SWITCHBOARDS 16462--1-6

SECTION 16470 - PANELBOARDS 16470--1-6

SECTION 16510 - BUILDING LIGHTING 16510--1-11

PAGE

INDEX

ii

DEMOLITION 02050 - 1

SECTION 02050 - DEMOLITION

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Utility lines, and other items to be demolished and/or abandoned are as shown.

1.2 SUBMITTALS

A. Quality Control Submittals:

1. Schedule of demolition, as part of and consistent with the progress schedule specified in Section 01310, PROGRESS/CRITICAL PATH SCHEDULES.

2. Copies of any authorizations and permits required to perform Work.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION

3.1 PREPARATION

A. Utilities:

1. Notify CONTRACTING OFFICER or appropriate utilities to turn off affected services before starting demolition or alterations.

2. Remove utility lines exposed by demolition excavation.

3. Remove electric, sanitary, water, and storm drainage adjacent to buildings to be demolished.

4. Excavate utility lines serving buildings to be demolished and provide a permanent leak-proof closure for water and gas lines.

3.2 DEMOLITION

A. Drawings define minimum required demolition. Unless otherwise shown, rough cuts or breaks may be made exceeding limits of demolition shown.

B. Core drill floor slabs, catch basins, and other concrete improvements to remain in place below ground, or break holes at structure's lowest point to allow water to freely migrate through.

DEMOLITION 02050 - 2

C. Remove piping as shown and from any other areas that interfere with

CONTRACTOR’s work. Pipe, valves, and fittings adjacent to those to be removed may also be removed as salvage.

D. Cut off concealed or embedded conduit, boxes, or other materials a minimum of 6 inches below final finished surface.

E. Perform site cleanup daily before leaving the work site. Store equipment in a neat and orderly arrangement.

F. Abandonment of Buried Utility Piping Systems:

1. Plug pipelines at exposed excavations and at manholes or other utility structures with minimum 5-foot long concrete plug.

2. Manholes/wet wells/drainage structures:

a. Remove frames and covers/grates for salvage.

b. Remove structures shown on Drawings.

c. Backfill as described herein.

G. Demolition of utility poles, street signs and similar items:

1. Remove entire structure, including portions below ground.

2. Remove and separate items for salvage.

3. Backfill as described herein.

3.3 DISPOSAL

A. Dispose of debris and other nonsalvaged materials off base at location selected by

CONTRACTOR.

3.4 BACKFILLING

A. Demolished Areas: Backfill to existing ground level or foundation level of new construction.

B. Backfill Material and Compaction:

DEMOLITION 02050 - 3

1. Conform to Section 02220, FILL AND BACKFILL.

2. Do not use demolition debris as backfill material.

3.5 SALVAGE

A. Equipment and materials, including piping within the limits of demolition, unless otherwise specified, will become the property of the CONTRACTOR.

END OF SECTION

SELECTIVE DEMOLITION 02070 - 1

SECTION 02070 - SELECTIVE DEMOLITION

PART 1 - GENERAL

RELATED DOCUMENTS

Drawings and general provisions of Contract, including General Division 1 Specification Sections, apply to this Section.

SUMMARY

This Section includes, but is not limited to, the following:

Demolition and removal of selected site elements including site pavements and slabs-on-grade.

Disconnecting, capping or sealing, and abandoning or removing existing site utilities.

Demolition and removal of dumpster screen walls, slab-on-grade footings, and associated elements.

Demolition and removal of fencing.

Relocation of existing site utilities, including light poles.

Demolition and removal of existing underground concrete rubble. Refer to Specification Section 02200.

Demolition and removal of other above and below grade improvements to accommodate new construction.

Demolition and removal of existing trench drain.

Patching and repairing.

Demolition and removal of curb and gutter.

Related Sections: The following Sections contain requirements that relate to this Section:

Division 1 Section "Cutting and Repairing" for cutting and repairing procedures for selective demolition operations.

Division 2 Section "Site Clearing" for site clearing and removal of topsoil and vegetation.

Division 2 Section "Earthwork" for soil materials, excavating, backfilling, and site grading.

SELECTIVE DEMOLITION 02070 - 2

Division 2 Section “Landscape Work” for relocation of trees.

DEFINITIONS

Remove: Remove and legally dispose of items except those indicated to be reinstalled, salvaged, or to remain the Government’s property.

Existing to Remain: Protect construction indicated to remain against damage and soiling during selective demolition.

MATERIALS OWNERSHIP

Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain the Government’s property, demolished materials shall become the Contractor's property and shall be removed from the site with further disposition at the Contractor's option, unless otherwise indicated.

SUBMITTALS

Schedule indicating proposed sequence of operations for selective demolition work for review prior to start of work. Include coordination for shutoff, capping, and continuation of utility services as required.

Coordinate with adjacent facilities to permit continuing occupation of existing building and parking areas.

QUALITY ASSURANCE

Regulatory Requirements: Comply with hauling and disposal regulations of authorities having jurisdiction.

JOB CONDITIONS

Occupancy: Conduct selective demolition work in manner that will minimize need for disruption of adjacent Government’s normal operations. Provide minimum of 72 hours advance notice to Contracting Officer’s Representative of demolition activities that will affect adjacent occupied facilities.

Condition of Structures: The Government assumes no responsibility for actual condition of items or structures to be demolished.

Conditions existing at time of inspection for bidding purposes will be maintained by Government insofar as practicable.

Partial Demolition and Removal: Items indicated to be removed but of salvageable value to Contractor may be removed as work progresses. Transport salvaged items from site as they are removed.

SELECTIVE DEMOLITION 02070 - 3

Storage or sale of removed items on site will not be permitted.

Protections: Provide temporary barricades and other forms of protection to protect from injury due to selective demolition work.

Conduct operations to prevent damage to adjacent buildings, structures, sidewalks, pavements, and other facilities and to prevent injury or damage to persons or property.

Provide interior and exterior shoring, bracing, or support to prevent movement, settlement, or collapse of structure or element to be demolished and adjacent facilities or work to remain.

Remove protections at completion of work.

Damages: Promptly repair damages caused to adjacent facilities by demolition work.

Environmental Controls: Comply with governing regulations pertaining to environmental protection.

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION

EXAMINATION

Verify that utilities have been disconnected and capped.

Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

When unanticipated mechanical, electrical, or structural elements that conflict with the intended function or design are encountered, investigate and measure the nature and extent of the conflict. Promptly submit a written report to the Architect.

UTILITY SERVICES

Maintain existing utilities to remain in service and protect them against damage during selective demolition operations.

Do not interrupt existing utilities serving occupied or operating facilities, except when authorized in writing by Contracting Officer and authorities having jurisdiction. Provide temporary services during interruptions to existing utilities, as acceptable to Government.

SELECTIVE DEMOLITION 02070 - 4

Provide not less than 72 hours' notice to Contracting Officer if shutdown of service is required during changeover.

Utility Requirements: Locate, identify, disconnect, and seal or cap off indicated utility services.

Where utility services are required to be removed, relocated, or abandoned, provide bypass connections to maintain continuity of service to other used or occupied buildings before proceeding with selective demolition.

PREPARATION

General: Provide interior and exterior shoring, bracing, or support to preserve stability and prevent movement, settlement, or collapse of areas to be demolished.

Drain, purge, or otherwise remove, collect, and dispose of chemicals, gases, acids, or other dangerous materials before proceeding with selective demolition operations.

Conduct demolition operations and remove debris to ensure minimum interference with roads, streets, walks, and other adjacent occupied and used facilities.

Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Government. Provide alternate routes around closed or obstructed traffic ways if required by governing regulations.

Conduct demolition operations to prevent injury to people and damage to adjacent buildings and facilities to remain. Ensure safe passage of people around selective demolition area.

Erect temporary protection, such as walks and fences, as needed for protection.

Protect existing site improvements, appurtenances, and landscaping to remain.

DEMOLITION

General: Perform selective demolition work in a systematic manner. Use methods required to complete work within limitations of governing regulations and as follows:

Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. To minimize disturbance of adjacent surfaces, use hand or small power tools designed for sawing or grinding, not hammering and chopping.

Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

SELECTIVE DEMOLITION 02070 - 5

Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations.

Maintain portable fire-suppression devices during flame-cutting operations.

Maintain adequate ventilation when using cutting torches.

Remove decayed, vermin-infested, or unsuitable materials and promptly dispose of off-site.

Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.

Return elements of construction and surfaces to remain to condition existing before start of selective demolition operations.

Locate demolition equipment throughout structure and promptly remove debris to avoid imposing excessive loads on supporting walls, floors, or framing.

Demolish concrete and masonry in small sections. Cut concrete and masonry at junctures with construction to remain, using power-driven masonry saw or hand tools; do not use power-driven impact tools.

Break up and remove concrete slabs on grade, footings, and foundations, unless otherwise shown to remain.

Completely fill below-grade areas and voids resulting from demolition work. Provide fill consisting of approved earth, gravel, or sand, free of trash and debris, stones over 6 inches in diameter, roots, or other organic matter and thoroughly compact to specified criteria per Section 02200.

DISPOSAL OF DEMOLISHED MATERIALS

Remove from building site debris, rubbish, and other materials resulting from demolition operations, unless otherwise acceptable to Contracting Officer. Transport and legally dispose off site.

If hazardous materials are encountered during demolition operations, comply with applicable regulations, laws, and ordinances concerning removal, handling, and protection against exposure or environmental pollution.

Burning of removed materials is not permitted on project site.

PATCHING AND REPAIRING

Promptly patch and repair damaged surfaces caused to adjacent construction by selective demolition operations.

SELECTIVE DEMOLITION 02070 - 6

Patching is specified in Division 1 Section "Cutting and Repairing."

Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials.

END OF SECTION 02070

FIRESTOPPING 07270 - 1

SECTION 07270 - FIRESTOPPING

RELATED DOCUMENTS

Drawings and general provisions of the Contract, including General and Division 1 Specification Sections, apply to this Section.

This Section includes firestopping for the following:

Penetrations through fire-resistance-rated walls and partitions including openings containing cables, pipes, ducts, conduits, and other penetrating items.

Sealant joints in fire-resistance-rated construction.

Division 7 Section "Building Insulation" for safing insulation and accessories.

Division 7 Section "Joint Sealants" for non-fire-resistive-rated joint sealants.

Division 15 Sections specifying ducts and piping penetrations.

Division 16 Sections specifying cable and conduit penetrations.

SYSTEM PERFORMANCE REQUIREMENTS

General: Provide firestopping systems that are produced and installed to resist the spread of fire, according to requirements indicated, and the passage of smoke and other gases.

F-Rated Through-Penetration Firestop Systems: Provide through-penetration firestop systems with F ratings indicated, as determined per ASTM E 814, but not less than that equaling or exceeding the fire-resistance rating of the constructions penetrated.

T-Rated Through-Penetration Firestop Systems: Provide through-penetration firestop systems with T ratings, in addition to F ratings, as determined per ASTM E 814, where required by code and where systems protect penetrating items exposed to contact with adjacent materials in occupiable floor areas.

T-rated assemblies are required where the following conditions exist:

Where firestop systems protect penetrations located outside of wall cavities.

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Where firestop systems protect penetrations located outside fire-resistive shaft enclosures.

Where firestop systems protect penetrations located in construction containing doors required to have a temperature-rise rating.

Where firestop systems protect penetrating items larger than a 4-inch-diameter nominal pipe or 16

sq. in. in overall cross-sectional area.

Fire-Resistive Joint Sealants: Provide joint sealants with fire-resistance ratings as determined per ASTM E 119, but not less than that equaling or exceeding the fire-resistance rating of the construction in which the joint occurs.

For firestopping exposed to view, traffic, moisture, and physical damage, provide products that do not deteriorate when exposed to these conditions.

For piping penetrations for plumbing and wet-pipe sprinkler systems, provide moisture-resistant through-penetration firestop systems.

For floor penetrations with annular spaces exceeding 4 inches or more in width and exposed to possible loading and traffic, provide firestop systems capable of supporting the floor loads involved either by installing floor plates or by other means.

For penetrations involving insulated piping, provide through-penetration firestop systems not requiring removal of insulation.

For firestopping exposed to view, provide products with flame-spread values of less than 25 and smoke-developed values of less than 450, as determined per ASTM E 84.

SUBMITTALS

General: Submit the following according to Conditions of Contract and Division 1 Specification Sections.

Product data for each type of product specified.

Certification by firestopping manufacturer that products supplied comply with local regulations controlling use of volatile organic compounds (VOCs) and are nontoxic to building occupants.

Shop drawings detailing materials, installation methods, and relationships to adjoining construction for each through-penetration firestop system, and each kind of construction condition penetrated and kind of penetrating item. Include firestop design designation of qualified testing and inspecting agency evidencing compliance with requirements for each condition indicated.

Submit documentation, including illustrations, from a qualified testing and inspecting agency that

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is applicable to each through-penetration firestop configuration for construction and penetrating items.

QUALITY ASSURANCE

Fire-Test-Response Characteristics: Provide firestopping that complies with the following requirements and those specified under the "System Performance Requirements" article:

Firestopping tests are performed by a qualified testing and inspecting agency. A qualified testing and inspecting agency is UL, Warnock Hersey, or another agency performing testing and follow-up inspection services for firestop systems that is acceptable to authorities having jurisdiction.

Through-penetration firestop systems are identical to those tested per ASTM E 814 under conditions where positive furnace pressure differential of at least 0.01 inch of water is maintained at a distance of 0.78 inch below the fill materials surrounding the penetrating items in the test assembly. Provide rated systems complying with the following requirements:

Through-penetration firestop systems correspond to those indicated by reference to through-penetration firestop system designations listed by UL in their "Fire Resistance Directory," by Warnock Hersey, or by another qualified testing and inspecting agency.

Fire-resistive joint sealant systems are identical to those tested for fire-response characteristics per ASTM E 119 under conditions where the positive furnace pressure differential is at least 0.01 inch of water, as measured 0.78 inch from the face exposed to furnace fire. Provide systems complying with the following requirements:

Fire-Resistance Ratings of Joint Sealants: As indicated by reference to design designations listed by UL in their "Fire Resistance Directory" or by another qualified testing and inspecting agency.

Joint sealants, including backing materials, bear classification marking of qualified testing and inspection agency.

Single-Source Responsibility: Obtain through-penetration firestop systems for each kind of penetration and construction condition indicated from a single manufacturer.

Provide firestopping products containing no detectable asbestos as determined by the method specified in 40 CFR Part 763, Subpart F, Appendix A, Section 1, "Polarized Light Microscopy."

Coordinating Work: Coordinate construction of openings and penetrating items to ensure that designated through-penetration firestop systems are installed per specified requirements.

DELIVERY, STORAGE, AND HANDLING

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Deliver firestopping products to Project site in original, unopened containers or packages with intact and legible manufacturers' labels identifying product and manufacturer; date of manufacture; lot number; shelf life, if applicable; qualified testing and inspecting agency's classification marking applicable to Project;

curing time; and mixing instructions for multicomponent materials.

Store and handle firestopping materials to prevent their deterioration or damage due to moisture, temperature changes, contaminants, or other causes.

PROJECT CONDITIONS

Environmental Conditions: Do not install firestopping when ambient or substrate temperatures are outside limits permitted by firestopping manufacturers or when substrates are wet due to rain, frost, condensation, or other causes.

Ventilation: Ventilate firestopping per firestopping manufacturers' instructions by natural means or, where this is inadequate, forced air circulation.

PART 2 - PRODUCTS

FIRESTOPPING, GENERAL

Compatibility: Provide firestopping composed of components that are compatible with each other, the substrates forming openings, and the items, if any, penetrating the firestopping under conditions of service and application, as demonstrated by firestopping manufacturer based on testing and field experience.

Accessories: Provide components for each firestopping system that are needed to install fill materials and to comply with "System Performance Requirements" article in Part 1. Use only components specified by the firestopping manufacturer and approved by the qualified testing and inspecting agency for the designated fire-resistance-rated systems.

Applications: Provide firestopping systems composed of materials specified in this Section that comply with system performance and other requirements.

FIRE-RESISTIVE ELASTOMERIC JOINT SEALANTS

Elastomeric Sealant Standard: Provide manufacturer's standard chemically curing, elastomeric sealants of base polymer indicated that complies with ASTM C 920 requirements, including those referenced for Type, Grade, Class, and Uses, and requirements specified in this Section applicable to fire-resistive joint sealants.

Sealant Colors: Provide color of exposed joint sealants to comply with the following:

Provide selections made by Contracting Officer from manufacturer's full range of standard colors

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for products of type indicated.

Multicomponent, Nonsag, Urethane Sealant: Type M; Grade NS; Class 25; exposure-related Use NT, and joint-substrate-related Uses M, A, and (as applicable to joint substrates indicated) O.

Products: Subject to compliance with requirements, provide one of the following:

Multicomponent, Nonsag, Urethane Sealant:

Dynflex, Pecora Corp.

Dynatred, Pecora Corp.

Dynatrol II, Pecora Corp.

Sonolastic NP 2, Sonneborn Building Products Div.

ChemRex Inc.

Dymeric, Tremco Inc.

FIRE-RESISTANT JOINT SEALERS

General: Provide manufacturer's standard fire-stopping sealant, with accessory materials, having fire-resistance ratings indicated as established by testing identical assemblies per ASTM E 814 by Underwriters Laboratory, Inc. or other testing and inspecting agency acceptable to authorities having jurisdiction.

Foamed-In-Place Fire-Stopping Sealant: Two-part, foamed-in-place, silicone sealant formulated for use in a through-penetration fire-stop system for filling openings around cables, conduit, pipes and similar penetrations through walls.

Foamed-In-Place Fire-Stopping Sealant:

"Dow Corning Fire Stop Foam"; Dow Corning Corp.

"Pensil 851"; General Electric Co.

One-Part Fire-Stopping Sealant:

"3M Fire Barrier Caulk CP-25"; Electrical Products Div./3M "RTV 7403"; General Electric Co.

"Fyre Putty"; Standard Oil Engineered Materials Co.

MIXING

For those products requiring mixing prior to application, comply with firestopping manufacturer's directions for accurate proportioning of materials, water (if required), type of mixing equipment, selection of mixer speeds, mixing containers, mixing time, and other procedures needed to produce firestopping

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products of uniform quality with optimum performance characteristics for application indicated.

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

Do not proceed with installation until unsatisfactory conditions have been corrected.

PREPARATION

Surface Cleaning: Clean out openings and joints immediately prior to installing firestopping to comply with recommendations of firestopping manufacturer and the following requirements:

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

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

Remove laitance and form release agents from concrete.

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

Masking Tape: Use masking tape to prevent firestopping from contacting adjoining surfaces that will remain exposed upon completion of Work and that would otherwise be permanently stained or damaged by such contact or by cleaning methods used to remove smears from firestopping materials. Remove tape as soon as it is possible to do so without disturbing firestopping's seal with substrates.

INSTALLING THROUGH-PENETRATION FIRESTOPS

General: Comply with the "System Performance Requirements" article in Part 1 and the through-penetration firestop manufacturer's installation instructions and drawings pertaining to products and applications indicated.

Install forming/damming materials and other accessories of types required to support fill materials during their application and in the position needed to produce the cross-sectional shapes and depths required to achieve fire ratings of designated through-penetration firestop systems. After installing fill materials, remove combustible forming materials and other accessories not indicated as permanent components of firestop systems.

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Install fill materials for through-penetration firestop systems by proven techniques to produce the following results:

Completely fill voids and cavities formed by openings, forming materials, accessories, and penetrating items.

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

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

INSTALLING FIRE-RESISTIVE JOINT SEALANTS

General: Comply with the "System Performance Requirements" article in Part 1, with ASTM C 1193, and with the sealant manufacturer's installation instructions and drawings pertaining to products and applications indicated.

Install joint fillers to provide support of sealants during application and at position required to produce the cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability and develop fire-resistance rating required.

Install sealants by proven techniques that result in sealants directly contacting and fully wetting joint substrates, completely filling recesses provided for each joint configuration, and providing uniform, cross-sectional shapes and depths relative to joint width that optimum sealant movement capability. Install sealants at the same time joint fillers are installed.

Tool nonsag sealants immediately after sealant application and prior to the time skinning or curing begins.

Form smooth, uniform beads of configuration indicated or required to produce fire-resistance rating, as well as to eliminate air pockets, and to ensure contact and adhesion of sealants with sides of joint. Remove excess sealant from surfaces adjacent to joint. Do not use tooling agents that discolor sealants or adjacent surfaces or are not approved by sealant manufacturer.

CLEANING

Clean off excess fill materials and sealants adjacent to openings and joints as work progresses by methods and with cleaning materials approved by manufacturers of firestopping products and of products in which opening and joints occur.

Protect firestopping during and after curing period from contact with contaminating substances or from damage resulting from construction operations or other causes so that they are without deterioration or damage at time of Substantial Completion. If, despite such protection, damage or deterioration occurs, cut out and remove damaged or deteriorated firestopping immediately and install new materials to produce firestopping complying with specified requirements.

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END OF SECTION 07270

FINISH HARDWARE 08710 - 1

SECTION 08710 - FINISH HARDWARE

RELATED DOCUMENTS

Drawings and general provisions of Contract, including General and Division 1 Specification sections, apply to the work of this section.

DESCRIPTION OF WORK:

Definition: "Finish Hardware" includes items known commercially as finish hardware which are required for swing, sliding and folding doors, except special types of unique and non-matching hardware specified in the same section as the door and door frame.

Extent of finish hardware required is indicated on drawings and in schedules.

Types of finish hardware required include the following:

Hinges Lock cylinders and keys Lock and latch sets Bolts Exit devices Closers Overhead holders Miscellaneous door control devices Door trim units Weatherstripping for exterior doors Thresholds Smoke Gaskets

Thresholds for aluminum entrance doors are specified with entrance doors elsewhere in Division 8.

Cabinet hardware is specified in Division 6.

QUALITY ASSURANCE:

Manufacturer: Obtain each type of hardware (latch and lock sets, hinges, closers, etc.) from only one manufacturer, although several may be indicated as offering products complying with requirements.

Supplier: A recognized architectural finish hardware supplier, with warehousing facilities, who has been furnishing hardware in the project's vicinity for a period of not less than 2 years, and who is, or who employs an experienced architectural hardware consultant who is available, at reasonable times during the

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course of the work, for consultation about project's hardware requirements, to Government, Contracting Officer and Contractor.

Fire-Rated Openings: Provide hardware for fire-rated openings in compliance with NFPA Standard No. 80 and local building code requirements. Provide only hardware which has been tested and listed by UL or FM for types and sizes of doors required and complies with requirements of door and door frame labels.

SUBMITTALS

Product Data: Submit manufacturer's technical product data for each item of hardware in accordance with Division-1 section "Submittals." Include whatever information may be necessary to show compliance with requirements, and include instructions for installation and for maintenance of operating parts and finish.

Hardware Schedule: Submit final hardware schedule in manner indicated below. Coordinate hardware with doors, frames, and related work to ensure proper size, thickness, hand, function and finish of hardware.

Final Hardware Schedule Content: Based on finish hardware indicated, organize hardware schedule into "hardware sets" indicating complete designations of every item required for each door or opening. Include the following information:

Type, style, function, size and finish of each hardware item.

Name and manufacturer of each item.

Fastenings and other pertinent information.

Location of hardware set cross-referenced to indications on Drawings both on floor plans and in door and frame schedule.

Explanation of all abbreviations, symbols, codes, etc., contained in schedule.

Mounting locations for hardware.

Door and frame sizes and materials.

Keying information.

Submittal Sequence: Submit schedule at earliest possible date particularly, where acceptance of hardware schedule must precede fabrication of other work (e.g., hollow metal frames) which is critical in the project construction schedule. Include with schedule the product data, samples, shop drawings of other work affected by finish hardware, and other information essential to the coordinated review of hardware schedule.

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Keying Schedule: Submit separate detailed schedule indicating clearly how the Government's final instructions on keying of locks has been fulfilled.

Templates: Furnish hardware templates to each fabricator of doors, frames and other work to be factory-prepared for the installation of hardware.