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| Plumbing ~ transports clean water as well as wast water throughout a building |
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| Directional ~ escalators provide directional movement |
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| Accessibility~ ensures spaces & buildings are accessible to people with physical disabilities |
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| Communication ~ ways in which individuals within a building are able to communicate, such as network connections |
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| Electrical ~ safely distributes power supply to outlets as well as lights |
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| HVAC ~ moves air throughout interior spaces for comfort of occupants |
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| LIFE SAFETY ~ fire control systems help ensure the safety of occupants |
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| Lighting ~ energy is converted for use by light fixtures, illuminating interior spaces |
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| Security ~ various tools such as movement and smoke detectors are connected to uphold security |
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| Enclosure ~ insulation and exterior finish material creates a shell or envelope around the building |
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| Egress ~ this basement window has been designed and installed to allow egress in an emergency |
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| Structural ~ transmits applied gravity & loads safely to the ground |
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| Vertical Conveyance ~ elevators allow vertical movement inside a building |
