Exhibit_E_-_Conceptual_Narrative.pdf

CITY OF CHEYENNE –

MUNICIPAL BUILDING & COUNCIL CHAMBERS

REMODEL AND ADDITION

2101 O Neil Ave, Cheyenne, WY 82001

PERFORMANCE SPECIFICATION

ISSUE: SCHEMATIC DESIGN

DATE: MARCH 24, 2026

325 w. 18TH St., Cheyenne, WY 82001

PERFORMANCE SPECIFICATION SCHEMATIC DESIGN

Project: CHEYENNE MUNICIPAL BUILDING – CHEYENNE, WY Date: March 24, 2026

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TABLE OF CONTENTS

TABLE OF CONTENTS

PROJECT TEAM

PROJECT SUMMARY

DIVISION 1 - GENERAL CONDITIONS

DIVISION 2 - SITE WORK

DIVISION 3 - CONCRETE

DIVISION 4 - MASONRY

DIVISION 5 - METALS

DIVISION 6 - WOOD & PLASTICS

DIVISION 7 - THERMAL & MOISTURE PROTECTION

DIVISION 8 - DOORS, WINDOWS & GLASS

DIVISION 9 - FINISHES

DIVISION 10 - SPECIALTIES

DIVISION 11 - EQUIPMENT

DIVISION 12 - FURNISHINGS

DIVISION 13 - SPECIAL CONSTRUCTION

DIVISION 14 - CONVEYING SYSTEMS

CONSULTANT NARRATIVES

APPENDIX A - ................................................................. ACOUSTIC SYSTEMS (DIVISION 9)

APPENDIX B - ..... MECH., ELECTRICAL, & PLUMBING SYSTEMS (DIVISIONS 22, 23, & 26)

APPENDIX C - ........................ COMMUNICATIONS (AV/IT) & SECURITY (DIVISION 27 & 28)

APPENDIX D - ........................................EARTHWORK AND SITE UTILITIES (DIVISIONS 31)

APPENDIX E - ............................................................ LANDSCAPE SYSTEMS (DIVISION 32)

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PROJECT TEAM

END USER / OWNER:

City of Cheyenne Adele Bartel Public Works Staff Engineer O| 307-637-6263 E| abartel@cheyennecity.org

ARCHITECT PRIME:

Plan One Architects Britt Morgan, AIA, Vice President O| 307.514.4575 C| 970.980.6806 E| bmorgan@planone.com

ARCHITECT DESIGN SPECIALIST:

Essenza Architecture Christa Plaza, AIA, LEED AP® BD+C, President O| 303.952.5080 x2 C| 303-946-1238 E| christa@essenza-arch.com

CIVIL ENGINEERS:

Martin/Martin Wyoming Consulting Engineers Daniel Hayes O| 307-637-8422 E| DHayes@mmwyo.com

LANDSCAPE:

STUDIOPLAATS

Shane Fagan O| 970-364-3725 E| sfagan@studioplaats.com

STRUCTURAL ENGINEERS:

Martin/Martin Wyoming Consulting Engineers Tyler Robinson O| 307-637-8422 x135 E| TRobison@mmwyo.com

MECHANICAL/ ELECTRICAL/PLUMBING ENGINEERS:

WSP Engineering Nick Pickering, Mechanical C| 303-919-2184 E| nicholas.pickering@wsp.com Rick Shields, Electrical C| 307-275-0722 E| rick.shields@wsp.com

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TECHNOLOGY ENGINEERS/AV:

Spectrum Engineers, Inc.

Aaron Abbott, Audio / Video O| 8014018430 E| Aaron.Abbott@speceng.com Ted Pyper, Acoustics O| 801-401-8482 E| Ted.Pyper@speceng.com

GEOTECHNICAL ENGINEERS:

Terracon Leroy Salyers O| 307-829-7681 C| 970-7597418 E| Leroy.Salyers@terracon.com

SURVEYOR:

Steil Surveying Dustin Sharp O| 307-634-7273 E| info@SteilSurvey.com

PROJECT SUMMARY

This project is in the City of Cheyenne and entails renovations to the existing three-story municipal building, adjacent City Council building (previously the Senior Center) and associated sitework. Phasing is not currently indicated on the conceptual drawings but will be on the future issued sets. For cost estimating, the Council building will be constructed first then the chambers and offices will be moved over and then the construction on the municipal building will begin.

This document is intended to describe, in outline form, the requirements for the project.

This document will serve as an instrument of communication between the various parties to this project - designer, owner, user, and stakeholders. This will be the basis for the cost prediction effort being conducted by the cost estimating team.

This document and its graphic attachments are schematic and not for construction. They are intended to be used for preliminary pricing by the owner’s cost authority. The outlined descriptions provided herein are intended to represent a target level of quality and accommodation to be delivered by the development team through use of the funds provided by the financing entity. Deviations from these standards will not be allowed.

However, it is anticipated that, as the design process continues and the buy-out of construction products and systems is accomplished, cost-effective substitutions of equal products and systems will be considered.

Specific divisions associated with consultant engineers and specialists will be provided by the consultants.

Date: MARCH 24, 2026

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The Municipal Building shall be priced separately from the Council Buildings as the owners have different funding sources for each building.

WORK SQUARE FOOTAGE/AREA:

The current area of work for the project includes:

Municipal Building:

• First Floor = 21,700 SF

• Second Floor = 15,500 SF

• Third Floor = 15,325 SF

• Fourth Floor (Mechanical Penthouse) = 1,425 SF

• Fifth Floor (Elevator Machine Room) = 315 SF Total Building: = 54,265 SF

Municipal Building Site Work:

• Approximate area including Civic Center (NIC) = 6.62 acres Total Site work (approx.): = 6.62 acres

Council Building:

• First Floor = 8,500 SF Total Building: = 8,500 SF

Council Building Site Work:

• Approximate area including Civic Center (NIC) = 0.38 acres Total Site work (approx.): = 0.38 acres

DIVISION 1 - GENERAL CONDITIONS

All construction contracts will reference “General Conditions of the Contract” AIA Document A201, most recent issue or as determined by the Owner.

Upon completion of the project, obtain certificate of occupancy from code authority.

Comply with applicable state and federal laws (Cheyenne, WY).

Obtain appropriate permits from local code authority.

Applicable Codes:

This building shall be constructed in accordance with all applicable codes including, but not limited to:

2024 International Building Code 2024 International Existing Building Code 2024 International Mechanical Code 2024 International Fire Code 2024 International Fuel Gas Code

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2018 International Energy Conservation Code 2024 International Plumbing Code 2023 National Electrical Code 2024 NFPA 101 Life Safety Code

2017 ICC/ANSI A117.1

Cheyenne City Code Cheyenne Unified Development Code The City of Cheyenne & Board of Public Utilities Specifications & Standard Drawings

The Code Criteria Chart will be provided on sheets CR1.1 and CR1.2 in future issues and will list all code requirements related to this project.

Applicable code classifications for this building are:

• Occupancy Use Groups A-3, B, and S

• Automatic Fire Suppression System

• Anticipated Construction Type

Fully Sprinklered and Alarmed

II-B (non-combustible)

Summary of Work The scope of work as proposed includes a comprehensive renovation of the existing Municipal Building including replacement of the HVAC, electrical, plumbing, and IT systems including provision for new window openings throughout, a new entry addition, safety improvements, an accessible/stretcher sized elevator, and all associated site work. The project scope also includes renovation of the adjacent Senior Center building to contain the City Council Chambers, Council Offices, accessible restrooms, support spaces, and a finished tenant space.

The CMAR shall manage the city’s transition out of the building and administer FF&E delivery coordination. This will include moving the municipal staff to the second floor of the Municipal Courthouse. Note that the remodeled municipal building and senior center will have all new FF&E.

Special Instructions to Estimators This outline specification and associated documents provide the scope of work for the project. The municipal building shall be priced separately from the council building.

Insurance Requirements Provide general liability and workman’s compensation coverage consistent with standards of practice for general contractors.

Provide builder’s risk insurance. Owner to provide hazardous materials coverage.

(Owner to confirm)

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General Contractor Duties General Contractor shall provide and pay for all materials, labor, taxes, water, tools, equipment, light, power, and temporary facilities necessary for completion. Provide materials and labor unit prices for all parts of the work as subcontractors are retained.

For CMAR proposals provide a list of subcontractors and detailed schedule for completion.

Conduct weekly meetings to monitor the progress of the work and facilitate supervision and management of construction.

Review all shop drawings prior to submittal to the design team for further review, modification, and approval.

All subcontractors and trades to comply with union shop standards.

Safety Contractors are responsible for compliance with all applicable safety requirements and OSHA regulations.

Pay Requests

Monthly pay requests will be submitted by the contractor to architect and owner for review and approval. Refer to contract between the General Contractor and Owner for all payment requirements.

Permits and Fees General contractor to pay for all building permits and plan check fees. Confirm permit fee requirements with the City of Cheyenne as these fees may be waived. Owner to pay development fees, planning and zoning fees, application fees, environmental fees, and other costs related to obtaining permits and approvals from governing authorities.

Testing

Construction testing and certification to be managed by general contractor and paid for by owner. Work subject to testing includes concrete, welding, soils, and other components required by code or dictated by common practice.

Temporary Facilities

General contractor to include all temporary utility services, construction facilities, general services, security and fencing until a certificate of occupancy is obtained. Provide fencing and gates for control of vehicular aggress/egress.

Maintain fire truck access at all times. Notify the Fire Department in advance of any interruptions in existing fire suppression or alarm systems.

Coordinate all utilities shutdown needs with the City of Cheyenne team. Notify the team at minimum of two weeks prior to any shutdowns. If possible, provide a one-month notice.

Project Close-Out

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Complete all punch list items, conduct life safety demonstrations as required by code authorities, and deliver operational manuals to owner’s staff for all building systems.

Provide the owner with marked-up electronic record drawings of as-built conditions.

Provide commissioning per contract with Owner.

Performance Bond Provide performance, payment, and registered lien bonds consistent with standards of practice for general contractors.

Alternates

1. None at this time.

Allowances

1. Door Hardware Allowance: Provide an allowance of $1,200 per door.

2. Owners Contingency: Provide owner’s contingency in the amount of 10% of the cost of construction.

3. Design Contingency: Provide design contingency in the amount of 15% of the cost of construction.

4. Include line items for anticipated cost escalations for the duration of the project.

5. Include line items for anticipated General conditions and overhead and profit.

6. Provide a $150,000 allowance for acoustic panels and baffles throughout the municipal building.

7. Provide a $75,000 allowance for acoustic panels and/or baffles in the city council building.

DIVISION 2 – EXISTING CONDITIONS

A Geo-Technical Report is available for building construction and engineering.

A comprehensive and accurate site survey is available for use by the team. The survey will assess all current conditions of the site, including grading/topography, existing underground utilities, existing buildings, existing trees, hardscape, and site features.

Selective Demolition Salvage demolished brick for reuse where possible

Server room shall be protected and operable during demolition until the new server room is constructed.

Site Work All site work will be designed and documented by the Civil Engineer, Architect, and Landscape Architect.

1. Also refer to in Appendix A: Civil Narrative

2. Site development:

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a. The soils / geotechnical report is available upon request. Recommendations in the report are to be followed by the earthwork preparation team.

b. The site costs will be included in the general contract for construction.

c. All site construction activities must conform to erosion control requirements.

d. Partial site clearing will be required due to work requirements.

e. Provide for saving mature and healthy trees where site work and scope of improvements do not require their removal.

f. Provide finish grading and topsoil to match and coordinate with existing conditions.

g. Strip, screen, and stockpile topsoil for later use.

h. For bulk excavation and foundation backfill, assume that the final grading can be engineered for balanced cut and fill.

i. Provide trenching for buried utilities on-site and within the building footprint as needed.

j. Slab-on-grade and foundation drainage provisions to comply with recommendations of the geo-technical report.

k. Provide gravity fed surface termination for all subsurface drainage systems.

l. Provide shoring, bracing, and dewatering, as necessary.

m. Legally dispose of all waste material generated by earthwork and site clearing.

n. Landscaping includes plant materials, installation, finish grading, irrigation, mulching, staking, sod, native restoration and seeding of non-irrigated disturbed areas.

o. Site furnishings will be included in the scope and identified in the Landscape plans and specifications.

p. Provide 4” concrete sidewalks (confirm with City standards) where shown

(jointing of no more than 50 s.f.).

q. The purpose of the site scope in the documents is to demonstrate the relationship between the proposed structure and the building as well as other architectural elements which are accessory to the main use.

r. The general contractor shall have all site utilities verified, within the scope of work, and provide permanent markings for the life of the project. All utilities not requiring work shall be protected and not disturbed, damaged, or disrupted.

s. General contractor shall verify all dimensions & conditions of the job site. If any discrepancies occur the contractor should notify the architect before proceeding with work.

t. Do not disturb, damage, or disrupt any utility and/or conduit outside the work area unless specifically directed.

DIVISION 3 - CONCRETE

Exterior concrete work will be defined by Civil Engineer and Architect.

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Scope of interior concrete work by shell architect but provided in this section for reference. This includes slab on grade with spread footings, interior slabs, sheer walls, footings and foundation walls, rooftop equipment pads, and miscellaneous curbs, pads, steps, and ramps.

Comply with published standards for good practice including ACI 301 “Specifications for Structural Concrete in Buildings”, Concrete Reinforcing Steel Institute “Manual of Standard Practice” and ACI 318 “Building Code Requirements for Reinforced Concrete”.

All vertical concrete is expected to be concealed by other finishing systems.

Provide concrete finishes as follows:

1. Rough Form Finish: For vertical surfaces not exposed to view.

2. Non-Slip Broom Finish: Exterior horizontal concrete surfaces and wet area exposed concrete surfaces.

3. Trowel Finish: For interior horizontal surfaces to receive resilient flooring, painted coatings, low-tolerance floor assemblies, carpeting or other thin finish systems.

DIVISION 4 - MASONRY

The scope of masonry work includes exterior bearing masonry, exterior and interior non-bearing masonry. Match existing masonry color or as designated on the plans. Locations as indicated on plans.

All work to conform to the standards of the Masonry Institute.

Prepare mockup for architect’s review.

Provide steel lintels at all new masonry openings.

DIVISION 5 - METALS

Refer to the documents for exterior metal fabrications.

Provide reinforcing for laterally unsupported low partitions, various hangers, and platforms for TV’s, reinforcing for signage locations, and masonry lintels.

Cold formed metal framing will include heavier gage stud for some interior circumstances.

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Interior non-bearing wall partitions to be framed with steel studs. In general, provide framing necessary to create the profiles shown on the drawings. All steel stud framing shall conform to ANSI standards.

Allow for normal bracing, edge detailing and framing of penetrations in estimating steel quantities.

Exposed structural steel to be concealed with other finish systems.

Provide cable railings with wood top rail at all exit stairs, all floors. Provide mounting hardware for attachment to existing concrete stairs.

Provide decorative metal fencing at secure outdoor fenced areas. Provide a $15,000 allowance for decorative metal fencing interior and exterior. Coat with DTM high performance paint.

DIVISION 6 - WOOD & PLASTICS

The scope of work includes rough carpentry and blocking, millwork/casework, wood decorative trim, wood wall columns, wood base, vanity counters, running trim, and wall caps. All wood blocking and rough carpentry to use non-com lumber. Include all installations. Rough carpentry and blocking to include normal construction detailing for support and load distribution. Applications include edge blocking at penetrations and material transitions, wall hung counters and casework, and nailable/screwable substrates.

General Notes:

a. All base and wall mounted cabinets shall have plastic laminate on all exposed vertical faces; interior to be white melamine material, unless otherwise noted.

b. Partial height walls shall have a wood cap, birch with clear coat, square cut.

c. Refer to Division 12 for quartz countertops associated with cabinetry.

First Floor Plan:

1. Control Reception/Information Desk A. Finish with a mix of wood, plastic, and laminate finishes; outer face and interior plastic laminate cabinets. Include 36” deep quartz or solid surface work counter-top and 12” deep quartz or solid surface raised service counter at 42”h for approx. one third of the length of the counter, and 36” deep surface at 34” high (accessible counter). Integral tape lighting in toe kick. Make provisions for the application of security measures such as ballistic wall liners.

2. Support & Circulation Spaces

A. Provide solid surface sills at windows. Jamb and head details to be gypsum board.

3. Restrooms

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A. Vanities: Mix of plastic and metal laminate; outer face and ADA apron on ADA Rakks brackets. Include 24” deep quartz or solid surface counter-top with undermount sinks.

B. Toilet partitions: Plastic laminate, privacy length model. Floor mounted with overhead supports.

C. Lockers: HDPE, combination 50%/50% two and three - tier, with solid hammered finish on doors.

4. Meeting Rooms A. 5’-0” long built in base cabinets with open back for ventilation of AV equipment. 18” deep quartz counter tops. Provide one per each meeting room. Provide hardware handles on all doors and drawers.

5. Break Rooms A. 7’-0” long built in base and overhead plastic laminate cabinets with undermount sink and 18” deep quartz counter tops. Provide one per each break room. Provide hardware handles on each door.

6. Mothers room A. 5’-0” long built in base cabinets with opening for under counter refrigerator. 24” deep quartz counter tops with undermount sink. Provide hardware handles on all doors and drawers.

DIVISION 7 - THERMAL & MOISTURE PROTECTION

The new exterior façade will include metal panels: Basis of Design – Dri-design Standard and EN-V Series, Berridge B-6, Forma Steel Slimline Woodgrain, and Matte Black corrugated.

Provide exterior thermal and moisture protection.

Provide joint sealers and sound insulation.

Vapor Barriers to be required under all finish materials.

Provide fire stopping at all penetrations through fire rated enclosures.

Expansion joints may be provided between building masses. To be identified by structural in future documents.

Joint sealers, caulking and backer rod to be applied where necessary to maintain a watertight building envelope. Employ color-matched sealants unless otherwise noted.

Sound separation walls: Provide full acoustic separation including acoustic sealants at all penetrations.

• Between office, meeting management rooms, meeting room, and adjacent spaces

• Between men’s and women’s public restrooms (sound insulation only)

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• Include 3 5/8” staggered studs on 6” tracks top/bottom, woven insulation, and double layers of gyp. bd. At specific locations to be identified in future document issues. Assume 20% of walls in both buildings to include sound separating construction.

• Refer to Acoustic narrative in the appendix section for additional information.

Roofing will be 60 mil EPDM fully adhered + ½” cover board, (2) layers tapered poly-iso insulation (confirm city standards) on municipal building and 30% EPDM/70% - standing seam metal roof with snow fences (Basis of Design: Berridge) on the City Council

DIVISION 8: DOORS, WINDOWS & GLASS

Provide doors, frames, hardware, and special features as required to support the functional requirements of the work. The scope of work includes standard door types, frames, exit alarms, weather stripping, sound seal, access doors.

General door requirements include:

A. Assembly is defined as the entire door assembly including all items to make functional. Including but not limited to slab, hardware, and frames.

B. All non-storefront frames to be hollow metal, grouted solid at masonry, primed, and painted.

C. Note both gypsum board and masonry assemblies are required as part of the scope. Note all door frames in masonry shall have a 4” head frame to align with masonry coursing, and grouted frames. Refer to documents for additional information.

D. All new hardware shall meet the minimum industry requirement for the purpose of the room matching existing conditions style, grade, finish, and function.

E. All new interior swing doors shall have at minimum.

1. 3 butts minimum per leaf.

2. Door frame silencers.

3. All new hardware matching use or as addressed in these documents.

4. All doors shall be keyed to match the building keying system. For bid purposes assume:

i. (1) master key.

ii. Provide (3) copies of the key.

5. Card Access: Assume 20% of doors to have secure card access.

F. Exterior door hardware shall include:

1. Electronic card access

2. Panic exit bars with alarm

3. Locks & Levers

4. Heavy Duty Closers

5. Overhead stops

6. Weather seal

7. Weather sweep

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8. Fire seal as necessary

9. Extruded aluminum threshold

G. All interior doors in the building to be 7’-0” high x 3’-0” wide, birch wood slabs with clear protective coat, unless noted otherwise. 18” high kickplates at maintenance/electrical/workshop/support services room doors.

H. Refer to future documents for all exterior door and window framing.

I. Service access doors and fire exit doors to be card access with exit alarms or as required by owner.

J. Standard door type is solid core wood, in hollow metal frame. This type will be used for all interior applications except as follows:

i. Doors between pools and pool equipment rooms, storage rooms, mechanical or electrical spaces to be hollow metal with epoxy paint.

ii. Aluminum storefront doors and frames at various interior and exterior wall locations, including pool entry doors.

K. All frames to be hollow metal, grouted solid at masonry, primed and painted.

Exterior Glazing

Provide glazing and windows as required to enclose openings shown in plan and/or elevation. The scope of glazing work includes windows and interior storefront, interior sidelights, framing of openings, mirrors, and standard glass.

New storefront glass - Basis of Design: Vitro, Solarban 70, solar gray, low-e with tint on exterior face, clear on interior face.

Type: Low-E Tinted Insulating Glass - Cool light-gray, low-reflective exterior appearance.

1. Solarban® 70 (2) Solargray® + Clear by Vitro Architectural Glass.

2. Performance Values: VLT 32 percent; SHGC 0.19; shading coefficient 0.21;

exterior reflectance 7 percent; U-value winter 0.28; U-value summer 0.26.

3. Insulating Glass Unit Construction: 1/4 inch (6 mm) Solargray® glass, Solarban®

70 solar control (sputtered) on second surface (2) + 1/2 inch (13 mm) air space + 1/4 inch (6 mm) Clear glass.

Mirrors in all locations to be plumb and level across entire length to avoid broken images.

Interior Glazing Door Sidelights: ¼” clear float glass, tempered.

Mirrors: ¼” mirror glass. See prefabricated framed mirrors Div. 10.

Within Partitions: ¼” clear float glass, fully tempered where required.

Ballistics-Resistant Glazing at information, clerks, building department, HR desks and public facing windows.

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DIVISION 9 - FINISHES

The scope of work includes all labor and materials necessary to give final form and appearance to the floors, walls, and ceilings indicated on the attached floor plan and generic room finish schedule. Material systems employed are gypsum board, ceramic tile, suspended acoustic ceilings, sports flooring (at wellness room), carpet, rubber base, LVT, paint, high pressure laminates, and specialty coatings.

Acoustics

Provide a $150,000 allowance for acoustic panels and baffles throughout the municipal

Provide a $75,000 allowance for acoustic panels and/or baffles in the city council

Gypsum Board

All interior gypsum wall board partitions and ceilings to be finished to Level 4 in all public spaces and level 3 in all back of house spaces.

Interior, non-bearing partitions: 5/8" gypsum board on light gauge framing.

Interior fire rated partitions: 5/8" Type X on light gage framing.

Gypsum board soffits to be painted.

Gypsum sound boards sound separation walls noted in division 7.

Partition construction will include the following general partition types:

Partial height partitions laterally braced by wall shape and/or steel posts rigidly fastened to floor imbeds. 2x Wall caps with transparent finish. 5/8” gypsum board on light gauge framing, with 3” x 3” steel angle at 4’-0” o.c. bracing.

Full height partition penetrating the ceiling plane by 6”-18” and laterally braced by the ceiling plane or bracing to structural floor/roof above. The cladding is full height.

Full height partition penetrating the ceiling plane and attached to the structure above for lateral support. Cladding is full height, sealed to structure, with horizontal penetrations for conduits, ducts, etc. sealed for sound, fire and/or smoke transmission.

Mechanical shafts to be rated wall assembly or shaft liner wall system.

Ceilings Finished ceiling height throughout to be no less than 9'-0". Specified areas may require higher or lower ceilings based on existing conditions. Refer to Schematic Design Reflected Ceiling Plans for finish and height information.

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Refer to Generic Room Finish Schedule in the issued drawings for more information.

ACT

Combination of standard 2’x2’ ACT. Decorative ACT Basis of Design: FACT Design Calming Trees patter at all corridors and conference rooms.

Ceramic Tile

Restroom walls: Wainscot of 60” or to tile coursing with aluminum or tile trim pieces at top and bottom of wainscoting transitioning to polished concrete or ceramic tile.

Refer to Room Finish Schedule and detailed Materials List in future issues for extent and pattern of finishes.

Quality Assurance: Tile Council of America, Ceramic Tile Institute.

Accessories

Metal Edge Strips: 1/8” wide Schluter Shien or Rondac type strips for transitions between ceramic tile and other floor materials and at vertical cut tile faces. Include all outside corner trim pieces to match style.

Vinyl Edge Strips: Tarkett/Johnsonite standard profile transitions for carpet to LVT and other flooring.

Setting Materials All restroom tile to be installed with epoxy grout.

Floor tile at restrooms to be installed in “thinset or thickset” At restrooms slight slopes to drains will be required at all tile locations.

Metal Edge Strips: as listed above.

Install Wall Tile over Cementitious Backer Boards: At all wall tile locations. Wall tiles in restrooms must also be installed over cementitious board. Moisture resistant board only at locations above tile wainscot.

Wall tile at CMU walls to be installed over Laticrete Hydroban or similar waterproof membrane.

Luxury Vinyl Tile Install per manufacturer’s instructions in locations noted on plan. Assume all corridors to be LVT.

Carpet As indicated on plans: Allowance of $40 per yard installed - direct glue down carpet squares or planks.

Metal edge strip: Carpet to ceramic tile/concrete transitions.

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Special Flooring Mechanical/Elec./shop/Janitors closet/support rooms: Sealed concrete.

Painting All gypsum board and concrete surfaces throughout building including utility areas and soffits to be painted with three coat system.

Paint all exposed miscellaneous and structural steel.

Paint all structural steel and exposed steel with epoxy or high-performance paint.

All wet areas in restrooms shall be epoxy paint.

Apply a clear finish to all exposed wood.

Walls:

• Odorless Semi-Gloss Latex Enamel Finish: 3 coats with total dry film thickness not less than 2.5 mils.

• First Coat: Interior latex base primer coat.

• Second and third coats: Odorless interior satin finish Latex enamel.

Exposed Concrete Masonry Units:

• Odorless Pro Industrial Waterborne Acrylic Finish

• First coat: Interior acrylic block surfacer/filler.

• Second and third coats: Waterborne Acrylic

Gypsum Board Ceilings:

• Odorless flat alkyd enamel finish: 3 coats with total dry film thickness not less than 2.5 mils.

• First coat: Interior latex base primer coat.

• Second and third coats: Odorless interior flat latex base paint.

Stained Woodwork:

• Hardwood -stain varnish finish: 3 finish coats over 2 coat stain.

• First stain coat: Interior oil stain topcoat or paste fill.

• Second coat: Custom mixed oil stain.

• First finish coat: Vinyl sealer.

• Second and third finish coats: Catalyzed varnish stain finish.

Exterior Metal:

• DTM – Direct to metal exterior paint.

Exterior protective coatings and graffiti resistant:

• On exterior masonry – Prosoco Blockguard and graffiti control WB 15.

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DIVISION 10 - SPECIALTIES

Fire Extinguishers

Portable Fire Extinguishers:

Fire extinguisher per each exit and every 75’ travel distance within the building.

One (1) 2½ gallon stainless steel Class ABC extinguisher, located in recessed cabinets.

Cabinet to have break-glass access.

Toilet Accessories

Each toilet room: Include the following stainless-steel accessories.

• Paper towel dispenser and trash receptacle.

• Sanitary napkin dispenser and disposal unit (women only).

• Set of grab bars. Conform to ADA requirements.

• Surface mounted toilet paper dispenser double roll.

• Soap dispensers at each lavatory.

• Hand dryer (confirm with city standards)

In each restroom within the facility:

• Baby changing station.

Waste Containers (free standing):

• Receptacles by owner and in FF&E package issued at a later date.

DIVISION 11 - EQUIPMENT

Food Service Equipment

Food service equipment to be defined in the SD issue. For cost estimating purposes provide an allowance for the following equipment in all Break Areas:

• Microwave oven

• Residential refrigerator – counter depth

• Garbage disposal

• Waterline for ice and direct to coffee maker.

General Contractor to provide dimensioned rough in shop drawings.

General Contractor is responsible for plumbing, power, final connections, and installation.

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Laundry Equipment

N/A

Television Brackets Provide wall and ceiling mounted brackets in public seating areas, multi-purpose room, behind reception counter and meeting/conference rooms. These will be defined in AV/Tech package developed in future packages.

DIVISION 12 - FURNISHINGS

Refer to summary of fixtures, furnishings, equipment, and schedule of responsibilities for an inclusive scope of items in future issue.

Provide solar shades for the following windows: At window openings in offices and meeting rooms.

Window Covering’s:

a. Hunter Douglas

b. Alustra Screen Shades

c. Semi Sheer solar screen 70%

d. Standard color selections

e. Standard clutch chain

f. Standard bottom and top bar

Furnishings are to be provided in a separate FF&E package specified by design team and purchased by owner.

DIVISION 13 - SPECIAL CONSTRUCTION

Secure record storage:

• Provide reinforced archive rooms.

• Provide climate-controlled document vault room.

Council Chambers special construction:

• Raised Dais – 18” max. raised platform.

• Integrated ballistic or blast resistant Dais. To seat 9 council members.

• Built in cable management – to be defined in Technology systems.

Safe room for secure cash handling and secure drop for accounting.

Fire rated/separated room for document storage (to be confirmed with the city)

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Bullet resistant partitions: At information, clerks, building department, and HR public facing desks and service counters.

DIVISION 14 - CONVEYING SYSTEMS

One, three stop, machine-room-less (MRL) traction elevator. Basis of Design: Otis or

Thyssen Krupp.

Sized for accessibility and stretcher.

Provide finishes from manufacturers standard options, including stainless steel doors, frames, and control panel. Include wall protection pads and hooks.

Upgraded lighting package.

Floor finish: Tile

CONSULTANT NARRATIVES

APPENDIX A - ................................................................. ACOUSTIC SYSTEMS (DIVISION 9)

APPENDIX B - ..... MECH., ELECTRICAL, & PLUMBING SYSTEMS (DIVISIONS 22, 23, & 26)

APPENDIX C - ........................ COMMUNICATIONS (AV/IT) & SECURITY (DIVISION 27 & 28)

APPENDIX D - ........................................EARTHWORK AND SITE UTILITIES (DIVISIONS 31)

APPENDIX E - ............................................................ LANDSCAPE SYSTEMS (DIVISION 32)

March 13, 2026

Cheyenne City Council and Municipal Buildings –

Schematic Design Acoustical Narrative

INTRODUCTION

This narrative describes architectural acoustics criteria and design features that address objectives, goals and requirements of the Cheyenne City Council Building in Cheyenne, Wyoming – a renovation of the current senior center. This narrative documents our recommendations to meet industry best practices for acoustic separation, background noise, and interior room acoustics.

ACOUSTICAL SEPARATION (WALL AND FLOOR/CEILING PERFORMANCE)

General Requirements

For this project, the primary objective of acoustic separation is speech privacy, which is the degree to which a conversation in one space can be heard and/or understood in an adjacent space. Levels of privacy are described below:

Privacy Level STC range1 Description (assuming moderate background noise)

Inaudible 60+ Voice conversations in an adjacent space cannot be heard at all.

Confidential 50-55 Voice conversations in an adjacent space may be audible but are unintelligible (not able to be understood).

Normal 45-50 Voice conversations in an adjacent space can be audible but are unintelligible most of the time.

Minimal 35-40 Voice conversations in an adjacent space are audible and intelligible most of the time.

1The attenuation provided by the partition between spaces is gauged in terms of the single number rating, Sound Transmission Class (STC.)

The degree of speech privacy that is achieved is a function of (1) the level of the speech sound source (amplified or unamplified), (2) the attenuation provided by the partition and (3) background sound level in the receiving room. If the listener is in a quiet space, intruding sounds are more audible, while a room with a higher background sound level can mask some intruding sounds and make them less intelligible or distracting. This higher background sound level is typically provided by the building HVAC system or a sound masking system. However, for telemedicine, quiet rooms, sleep rooms, and meeting rooms, the background level will be relatively quiet, given the use of these spaces.

Partitions

Partitions are the primary component of physical acoustic separation between spaces. The acoustic separation provided by a partition is rated in terms of Sound Transmission Class (STC) ratings. The following table contains wall type recommendations, based on the design standards and will be defined in greater detail in subsequent design phases. For reference, standard drywall christa Text Box

APPENDIX A: ACOUSTICS SYSTEMS

partitions with studs that are 3-5/8-inch thick, 20 gauge and 16-inch on center will achieve STC-

40 if they extend full height; are sealed to the underside of deck; and stud cavities are filled full depth.

City Council Building

Room Adjacency Combination

STC rating

(Sound Transmission Class)

Council Chamber

Committee Room

Council Office

AV Closet

Lobby/Circulation

Committee Room Lobby/Circulation

Council Chamber

AV/IT

Tenant Office Space

Offices Work Room

Mechanical

Circulation

Meeting Room/ Work Room

Lobby/Circulation

Restrooms

Tenant Office Space

Municipal Building

Adjacency Combination

STC rating (Sound Transmission Class)

Open Offices Open Offices

Private Office

Large Meeting Room

Small-Medium Meeting Room

Lobby/Circulation

Restrooms

MEP/service rooms

Executive Offices and

Department Head

Private/ Executive Office

Large Meeting Room

Small-Medium Meeting Room

Lobby/Circulation

Restrooms

Break Room/ Copy/Print

MEP/service rooms

Private Offices Private Office

Large Meeting Room

Small-Medium Meeting Room

Lobby/Circulation

Restrooms

Break Room/ Copy/Print

MEP/service rooms

Adjacency Combination

STC rating (Sound Transmission Class)

Meeting Rooms Large Meeting Room

Small-Medium Meeting Room

Lobby/Circulation

Restrooms

Break Room/ Copy/Print

MEP/service rooms

STC wall descriptions are described below. Walls must be full height to the underside of deck and acoustically sealed at all penetrations and intersections.

STC Rating Wall Construction

STC 55 • 1 layer 5/8” GWB

• 3-5/8” 20 ga. metal stud, 16” o.c.

• 3-1/2” batt insulation

• 1-inch airspace

• 3-5/8” 20 ga. metal stud, 16” o.c.

• 3-1/2” batt insulation

• 1 layer 5/8” GWB

-or-

• 3 layers 5/8” GWB

• 3-5/8” 20 ga. metal stud, 16” o.c.

• 3 layers 5/8” GWB

STC 50 • 2 layers 5/8” GWB

• 3-5/8” 20 ga. metal stud, 16” o.c.

• 2 layers 5/8” GWB

STC 45 • 2 layers 5/8” GWB

STC 40 • 1 layer 5/8” GWB

Acoustical Door Seals

Another component of acoustic separation is the use of door seals. Doors with full acoustical seals consist of adding seals to the top, jamb and hinge sides of the door frame and an automatic drop seal at the bottom of the door. Plan on acoustical door seals for all walls rated STC 45 or higher.

INTERIOR ACOUSTICS

Interior acoustics relates to the acoustic environment within space – whether it is acoustically

“lively,” or acoustically “dead.” This part of the acoustic environment is a function of the amount of acoustic absorption in the room.

The following table summarizes acoustic treatment recommendations for the various rooms in the building. These recommendations will be refined as the design progresses. The Noise

Reduction Coefficient (NRC) indicates how much sound is absorbed for speech frequencies.

Flooring is assumed to be carpeted for all these rooms.

City Council

Building Room

Ceiling Walls

Council Chamber 75% acoustical treatments

Minimum NRC 0.80

50% wall panels on two walls

Minimum NRC 0.90

Committee Room 75% acoustical treatments

Minimum NRC 0.80

50% wall panels on two walls

Minimum NRC 0.90

Meeting Rooms/

Work Room

Acoustic tile ceiling

Minimum NRC 0.80

50% wall panels on one wall

Minimum NRC 0.90

Offices Acoustic tile ceiling

Minimum NRC 0.80 n/a

Municipal

Building Room

Ceiling Walls

Open Office Acoustic tile ceiling

Minimum NRC 0.80 n/a

Private/ Executive

Office

Acoustic tile ceiling

Minimum NRC 0.80

Meeting Rooms

Acoustic tile ceiling

50% wall panels on one wall

Minimum NRC 0.90

Break Room/

Copy/Print

Acoustic tile ceiling

Minimum NRC 0.80 n/a

Lobby/circulation Acoustic tile ceiling

BUILDING SYSTEMS NOISE AND VIBRATION CONTROL

Criteria

The acoustical design goal for HVAC systems is the achievement of a level of background noise that is unobtrusive in quality (frequency content) and low enough in level (amplitude) that it does not distract from the function of the space being served. To be unobtrusive the background noise should exhibit the following characteristics:

• A balanced distribution of sound energy over a broad frequency range to create a sound that is neutral in character.

• No audible tonal characteristics such as a whine, hum, or rumble.

• No noticeable time-varying levels from system-induced aerodynamic instability or air turbulence.

To achieve this unobtrusive quality and level of sound from the HVAC system, loudness curves based on sound level measurements and acceptable levels for various spaces have been developed. The Noise Criteria (NC) values listed in the following table are the recommended levels to achieve background sound levels that will not interfere with these specific spaces, in accordance with the design standards.

City Council Building

Maximum Noise Criteria (NC)

Council Chamber 30

Committee Room 30

Meeting Rooms/

Work Room

30-35

Offices 35-40

Maximum Noise Criteria (NC)

Meeting Rooms

Private/ Executive Offices 35

Open Offices 40

Break Room/ Copy/Print 40

Lobby/circulation 45

Air Handling Unit

Air handling units should be located above areas that are not noise sensitive, such as circulation, utility rooms, restrooms, etc. Plug fans generate lower noise levels at low frequencies, plus have a plenum effect to reduce noise levels on the discharge side of the fan, and are the least susceptible to creation of excess noise from turbulent discharge conditions. In addition to reducing discharge noise from the fan, the plenum also allows for take-offs close to the unit with less turbulence than other fan arrangements. The quietest type of fan for this application is a centrifugal fan with airfoil blades. We will provide more recommendations for these units as the design progresses.

Allocating Space for Duct Silencers

Duct silencers are prefabricated pieces of ductwork with additional baffles inside to provide additional sound attenuation. These silencers typically come in lengths ranging from 3 feet to 10 feet. Considering the number of sound-sensitive spaces in this building, and the proximity to noise-sensitive spaces (e.g., meeting rooms, committee room), space should be allocated for duct silencers on the main air handling unit. Space should be allowed for 7-foot long silencers on both the supply and return sides of each air handling unit. This recommendation will be adjusted throughout the design process as more information about the air handling unit and duct layouts becomes available.

Duct Velocities

Use the lowest possible air velocities consistent with air change requirements. The following table indicates velocity guidelines that apply for supply and return ductwork based on the noise criteria of the room served by the duct.

Location NC-30 NC-35 NC-40 NC-45

Supply and return ducts just prior to diffusers or grilles 500 575 650 750

Supply and return duct trunk, prior to final diffuser or grille duct 800 900 1000 1150

Next order supply or return duct, outside of occupied space 1350 1500 2000 2500

All other ductwork 2000 2000 2400 3000

VAV Boxes

To achieve the low sound levels necessary for these sound-sensitive spaces, we recommend locating VAV boxes outside of rooms with criteria of NC 30 or less (for example, meeting and committee rooms.)

Supply Diffusers and Return Grilles

Size supply diffusers and return grilles to 5 points less than the recommended criteria for the room they serve. The exception to this recommendation is NC 25 spaces, where the diffusers and grilles should be designed to equal this criterion.

Vibration Isolation

The air handling units should have the fans internally isolated on springs. Further recommendations for vibration isolation will be provided and coordinated as the design progresses.

901 E Sheridan St Suite 100

Laramie, WY 82070 p: 303.919.2184 www.wsp.com

City of Cheyenne Municipal Building Remodel Schematic Design MEP Narrative Cheyenne, WY

Issued March 13, 2026

BUILDING SYSTEMS NARRATIVE

OVERVIEW:

The project will consist of a total remodel of the City of Cheyenne Municipal Building, located in Cheyenne, Wyoming. The building is 3 levels with a mechanical penthouse consisting of approximately 58,000 square feet.

The project is also to include a total remodel of the Senior Citizens Activity Center, which is to be converted into the City Council Chambers. The building is to include chambers, offices, conference rooms, etc. The building is approximately 8,500 square feet

This building systems narrative represents a schematic design level of information to help inform the cost budgeting and selection of the mechanical, electrical, and plumbing systems.

The objective is to validate budgeting for the project, confirm allocation of MEP spaces and provide a high-level overview of the building systems. Comments by the owner, and architect will be reviewed and only once a team consensus has been determined will any proposed revisions become the basis of design for the project moving forward. This narrative should not be considered inclusive of all requirements.

CHEYENNE MUNICIPAL BUILDING

MECHANICAL HVAC SYSTEM DESIGN PARAMETERS:

A. Design Criteria:

1. Compliance with applicable codes should be considered a minimum requirement.

2. The entire building HVAC and plumbing systems shall be designed in accordance with the following:

a. City of Cheyenne Building Code Amendments

b. ASHRAE Advanced Energy Design Guide for K-12 School Buildings

c. ASHRAE 90.1

d. 2024 International Building Code

e. 2024 International Mechanical Code

f. 2024 International Plumbing Code christa

APPENDIX B: MECHANICAL, ELECTRICAL, & PLUMBING SYSTEMS

City of Cheyenne Municipal Building Remodel Schematic Design MEP Narrative

g. 2024 International Fuel Gas Code

h. 2024 International Energy Conservation Code

i. National Fire Protection Association (NFPA),

j. 2020 National Electric Code (NEC)

k. Additional Standards will include: FGI, ASHRAE, SMACNA, ASME, ASTM, AWWA, UL, NEC, NEMA, ANSI, ADA, LEED

B. Design Parameters:

1. Outside Design Conditions:

a. Summer: 89.8°F, db, 58.1°F wb (0.4% ASHRAE Design for Cheyenne, WY)

b. Winter:-10.9°F, db (99% ASHRAE Design for Cheyenne, WY)

c. Elevation:6,200 Feet MSL

d. Outdoor Air minimum requirement per code (IMC Chapter 4 for all occupancies)

2. Indoor Max Design Conditions:

Space Type Summer Max

(±2°F) Winter Min

(±2°F) Main Lobby 74°F 68°F Corridors 75°F 68°F Office Areas 74°F 70°F Breakrooms 72°F 70°F Meeting Spaces 72°F 70°F Electrical / Mechanical Rooms 80°F 60°F Trash Rooms 78°F 55°F Vestibules, Stairwells No cooling 68°F Service, Storage, Janitor No cooling 68°F Night Setback 80°F 65°F

No active humidification or dehumidification control is required nor provided.

AIRSIDE SYSTEM:

A. Two (2) rooftop air handling unit with:

1. Basis of Design: Innovent

2. AHU-1 Serving First Floor – 24000 CFM Supply Air

a. (20) VAV Air Terminal Unit zones with hot water reheat coils.

3. AHU-2 Serving Second and Third Floor 36500 CFM Supply Air

a. (36) VAV Air Terminal Unit zones with hot water reheat coils.

4. Bottom connections for supply, return and exhaust air, all ducted with flexible connections

5. Min. (2) Supply fan, each fan with airflow measuring probes, (2) VFDs per unit, each sized for 50% of the load, backdraft dampers

6. Min. (2) Exhaust fan, each fan with airflow measuring probes, (2) VFDs per unit, each sized for 50% of the load, backdraft dampers

7. 100% Air-side economizer

8. Hot water heating coil

a. Coil-circulating pump

b. 30% Propylene Glycol / water mixture

9. Chilled Water Coil

a. Coil-circulating pump

b. 30% Propylene Glycol / water mixture

10. Filters: MERV-13

11. Field-provided and -mounted controls for all sections shall be provided with factory-mounted controls and BACnet interface integration to main building automation system

12. Electrical power requirements:

a. Single-point power connection for fans and heating and cooling components

b. Separate 120V single phase power connection, upstream of main disconnect, for receptacles, lights, control power

13. Full length service vestibule along entire side of unit

a. Full unit height x 8’ wide inside, full-length of the RTU

b. Doors on each end, with access stairs

c. Heated & Lights

14. Provide continuous, spring-isolated, seismically-rated, 18” high, insulated roof curb around entire base of unit, including service vestibule.

B. Ducted supply and return air mains shall extend from RTU. Provide medium pressure duct to VAV terminal boxes. Return shall be based on plenum return system.

C. Provide VAV terminal and ductwork for all occupied finished areas, including corridors.

All zones shall be furnished with hot-water heating coils for heating loads and ventilation requirements.

D. Space air distribution in shall be the following:

1. Open-to-structure zones with no ceilings: Sidewall supply air grilles

2. Perimeter areas with ceiling and floor to ceiling windows: Linear flow bar style diffusers centered on each window mullion. Provide (1) supply diffuser for every 200 cfm at perimeter zones.

3. Gypsum board ceilings: Flow Bar style linear diffusers with concealed mud-in frame typically centered in line with light fixture layout. Provide (1) 4’ supply diffuser for every 200 cfm.

4. Lay-in ceilings: 24”x24” flat perforated panel for supply and return. Supply air grilles shall have individually adjustable 4-way deflector mounted in neck of diffuser. Provide (1) supply diffuser for every 250 cfm. Provide a minimum of (1) return grille for every enclosed room and (1) return grille per 1000 sq. ft of open office areas.

E. Dedicated Cooling shall be provided to serve spaces with year-round, 24/7 cooling requirements. The following areas will be provided with air-cooled split-DX systems, with low-ambient cooling kits and snow stands:

1. IT Rooms (1) 2-ton split-DX system

2. Electrical Rooms (1) 2-ton split-DX system

F. Exhaust Air:

1. General, toilet and other environmental exhaust air to be ducted to exhaust fans centrally located.

G. Mechanical Ductwork Materials:

1. All ductwork shall be constructed of sheet-metal, furnished and installed in accordance with SMACNA Guidelines.

2. Provide turning vanes on all forced-air rectangular elbows.

3. Provide acoustically lined and insulated flexible duct with corrugated inner duct and 1” thick insulation for connection to grilles, registers and diffusers, unless shown as fully rigid duct connection on plans.

4. Provide manual balancing volume dampers at all low-pressure branch take-offs and at all conical duct-taps serving air inlets and outlets. Steel or aluminum construction with drive operator.

a. Provide remote operator system for all balancing dampers above inaccessible ceilings, and for all diffusers and grilles above each patient room.

b.…