Attachment 2. Modular Bldg Design.pdf

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841st Network Cabling Installation
Solicitation number
FA441826Q0067
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Summary

This is an architectural design and construction specification document for a modular building facility located in Charleston, South Carolina. The document provides comprehensive technical requirements and detailed construction plans across eight pages of drawings and specifications covering electrical, mechanical, plumbing, structural, and general construction standards.

The electrical specifications mandate compliance with the National Electrical Code (NEC) for all circuits and grounding, with specific requirements for lighting fixtures in closets (surface-mounted or recessed with clearance requirements), water heater disconnects, and HVAC equipment disconnects. All exterior receptacles must be in weatherproof enclosures rated for damp and wet locations. Exterior lights require photocells or timers, and occupancy sensor switches must provide bi-level lighting control with automatic shutoff within 30 minutes of occupancy. Mechanical specifications require 10" x 10" adjustable supply air registers with insulated ductwork (minimum R-6 insulation in ventilated attics, R-8 outside), interior door undercuts for air return, HVAC fresh air intakes providing 5 CFM per person and 0.06 CFM per square foot, and exhaust fans with minimum 50 CFM for water closets. All systems must use programmable thermostats with heating and cooling controls capable of maintaining setpoint temperatures at adjustable levels. Plumbing, structural steel, and roofing systems are detailed with specific material requirements (ASTM A36 steel, ANSI/ASME lag screws), construction techniques, and air barrier compliance specifications. The building design follows the 2021 South Carolina Building Code based on the 2021 IBC with South Carolina amendments.

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ELECTRICAL NOTES:

1. ALL CIRCUITS AND EQUIPMENT SHALL BE GROUNDED IN ACCORDANCE WITH THE APPROPRIATED

ARTICLES OF THE NATIONAL ELECTRICAL CODE (NEC).

2. WHEN LIGHT FIXTURES ARE INSTALLED IN CLOSETS THEY SHALL BE SURFACE MOUNTED OR

RECESSED. INCANDESCENT FIXTURES SHALL HAVE COMPLETELY ENCLOSED LAMPS. SURFACE

MOUNTED INCANDESCENT FIXTURES SHALL HAVE A MINIMUM CLEARANCE OF 12 INCHES AND ALL

OTHER FIXTURES SHALL HAVE A MINIMUM CLEARANCE OF 6 INCHES FROM "CLOSET STORAGE

SPACE" AS DEFINED BY NEC ARTICLE 410.2.

3. WHEN WATER HEATERS ARE INSTALLED THEY SHALL BE PROVIDED WITH READILY ACCESSIBLE

DISCONNECTS ADJACENT TO THE WATER HEATERS SERVED. THE BRANCH CIRCUIT SWITCH OR

CIRCUIT BREAKER SHALL BE PERMITTED TO SERVE THE AS THE DISCONNECTING MEANS ONLY

WHERE THE SWITCH OR CIRCUIT BREAKER IS WITHIN SIGHT FROM THE WATER HEATER OR IS

CAPABLE OF BEING LOCKED IN THE OPEN POSITION.

4. HVAC EQUIPMENT SHALL BE PROVIDED WITH READILY ACCESSIBLE DISCONNECTS ADJACENT TO THE EQUIPMENT SERVED. A UNIT SWITCH WITH A MARKED "OFF" POSITION THAT IS A PART OF THE

HVAC EQUIPMENT AND DISCONNECTS ALL UNGROUNDED CONDUCTORS SHALL BE PERMITTED AS

THE DISCONNECTION MEANS WHERE OTHER DISCONNECTING MEANS ARE ALSO PROVIDED BY A

READILY ACCESSIBLE CIRCUIT BREAKER.

5. PRIOR TO ENERGIZING THE ELECTRICAL SYSTEM THE INTERRUPTING RATING OF THE MAIN

BREAKER MUST BE DESIGNED AND VERIFIED AS BEING IN COMPLIANCE WITH ARTICLES 110-9 &

110.10 OF THE NEC BY LOCAL ELECTRICAL CONSULTANT.

6. THE MAIN ELECTRICAL PANEL AND FEEDERS ARE DESIGNED BY OTHERS, SITE INSTALLED AND

SUBJECT TO LOCAL JURISDICTION APPROVAL.

7. ALL CIRCUITS CROSSING OVER THE MODULE MATE LINE SHALL BE SITE CONNECTED WITH

APPROVED ACCESSIBLE JUNCTION BOXES OR CABLE CONNECTORS.

8. ALL RECEPTACLES INSTALLED IN WET LOCATIONS (EXTERIOR) SHALL BE IN WEATHER PROOF (WP) ENCLOSURES. THE INTEGRITY OF WHICH IS NOT AFFECTED WHEN AN ATTACHMENT PLUG CAP IS

INSERTED OR REMOVED. THE RECEPTACLE ITSELF SHALL ALSO BE LISTED FOR DAMP AND WET

LOCATIONS AS PER NEC.

9. EXTERIOR LIGHTS NOT INTENDED FOR 24 HOUR USE SHALL BE CONNECTED TO A PHOTOCELL OR

TIMER.

10. OCCUPANCY SENSOR SWITCHES SHALL PROVIDE A BI-LEVEL LIGHTING CONTROL TO PROVIDE

EITHER CONTINUOUS DIMMING, OR AT LEAST ONE INTERMEDIATE STEP IN LIGHTING POWER

BETWEEN 30% & 70% OF FULL POWER IN ADDITION TO FULL ON AND FULL OFF.

11. AUTOMATIC CONTROL DEVICES SHALL BE INSTALLED TO AUTOMATICALLY TURN OFF LIGHTS

WITHIN 30 MINUTES OF ALL

OCCUPANTS LEAVING THE SPACE AND SHALL EITHER BE MANUAL ON OR SHALL BE CONTROLLED

TO AUTOMATICALLY TURN THE LIGHTING ON TO NOT MORE THAN 50% POWER.

MECHANICAL NOTES:

1. ALL SUPPLY AIR REGISTERS SHALL BE 10 INCHES X 10 INCHES ADJUSTABLE WITH 20 INCHES X 10 INCHES

(INSIDE) OVERHEAD GALVANIZED STEEL DUCT, UNLESS OTHERWISE SPECIFIED. SUPPLY DUCTS EXPOSED TO VENTILATED ATTICS SHALL HAVE MINIMUM R-6 INSULATION. DUCTS IN UNCONDITIONED SPACES SHALL

HAVE R6 MIN. INSULATION & R8 INSULATION WHERE LOCATED OUTSIDE OF THE BUILDING.

2. INTERIOR DOORS SHALL BE UNDERCUT 1.5 INCHES ABOVE FINISHED FLOOR FOR AIR RETURN AND / OR AS

NOTED ON FLOOR PLAN (FOR NON-FIRE RATED DOORS).

3. HVAC EQUIPMENT SHALL BE EQUIPPED WITH OUTSIDE FRESH AIR INTAKES PROVIDING 5 CFM PER PERSON

AND 0.06 CFM PER SQUARE FOOT OF BUILDING AREA PER IMC.

4. VENT FANS SHALL BE DUCTED TO THE EXTERIOR AND TERMINATE AT AN APPROVED VENT CAP.

5. EXHAUST FANS SHALL PROVIDE A MINIMUM OF 50 CFM FOR EACH WATER CLOSET AND URINAL.

6. PERMISSIBLE GAS TYPE FOR APPLIANCES: NONE (ALL ELECTRIC).

7. THERMOSTATS MUST BE PROGRAMMABLE.

8. HEATING SYSTEM CONTROLS MUST BE CAPABLE TO BEING SET TO AUTOMATICALLY RESTART AND

TEMPORARILY OPERATE THE SYSTEM TO MAINTAIN TEMPERATURES ABOVE AN ADJUSTABLE HEATING SETPOINT AT LEAST 10° F BELOW THE OCCUPIED HEATING SETPOINT. COOLING SYSTEM CONTROLS MUST BE CAPABLE OF BEING SET TO AUTOMATICALLY RESTART AND TEMPORARILY OPERATE THE MECHANICAL

COOLING SYSTEM AS REQUIRED TO MAINTAIN TEMPERATURES BELOW AN ADJUSTABLE COOLING

SETPOINT AT LEAST 5° F ABOVE THE OCCUPIED COOLING SET POINT OR TO PREVENT HIGH SPACE

HUMIDITY LEVELS.

10. HVAC SYSTEMS MUST BE BALANCED IN ACCORDANCE WITH ACCEPTED PRACTICE.

11. EXHAUST FAN OUTLET MAY NOT BE WITHIN 10 FEET FROM ANY MECHANICAL AIR INTAKE.

C O V E R

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CODE SUMMARY:

STATE BUILDING ELEC. MECH. PLUMB. ACCESS. ENERGY

SC 2021 IBC W/ SC AMENDS 2020 NEC

w/SC AMENDS

2021 IMC

w/SC AMENDS

2018 IPC

w/SC AMENDS

2009 IECCANSI A117.1-2017

FIRE

2021 IFC

w/SC AMENDS

168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

SC PE LIC #: 34180

VALID

March 5, 2025

DESIGNED AND SITE INSTALLED BY OTHERS, SUBJECT TO

FLOOR AREA, AND AN 18" x 24" MINIMUM CRAWL SPACE

ACCESS, SITE INSTALLED BY OTHERS, SUBJECT TO LOCAL

1 SQUARE FOOT NET VENT AREA PER 1/150th OF THE

FOUNDATION ENCLOSURE (WHEN PROVIDED) MUST HAVE

HANDICAP RAMP(S), STAIR(S), AND HANDRAILS ARE TO BE

JURISDICTION AND APPROVAL

LOCAL JURISDICTION AND APPROVAL.

2.)

1.)

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168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

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NOTE: ALL HEIGHTS SPECIFIED A.F.F.

(ABOVE FINISHED FLOOR) ARE

MEASURED TO THE TOP OF

THE OBJECT OR ITEM.

NOTE: ALL walls that do not go to the underside of the roof deck must be braced.

168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

SC PE LIC #: 34180

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168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

SC PE LIC #: 34180

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168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

SC PE LIC #: 34180

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168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

SC PE LIC #: 34180

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168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

SC PE LIC #: 34180

STEEL NOTES:

1. UNLESS OTHERWISE SPECIFIED, ALL STEEL MUST COMPLY WITH

ASTM A36, YIELD STRENGTH-36 KSI Fyb= 80 KSI

2. ALL LAG SCREWS MUST COMPLY WITH ANSI/ASME STANDARD

B.18.2.1 Fyb=60 KSI

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SIDEWALL OVERHANG DETAILENDWALL OVERHANG DETAIL

168 WEST LONGLEAF DR

CONSULTING ENGINEER

SYLVESTER, GA 31791

WALTER E. WOOD, P.E.

W.E.W.

SC PE LIC #: 34180

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