MEP stands for mechanical, electrical and plumbing engineering. These three technical fields cover the systems that make buildings habitable for humans. MEP installations are normally designed together, due to the high degree of interaction between them. This combined approach also prevents equipment location conflicts - clashes are a common problem when mechanical, electrical and plumbing systems are designed in isolation.

Working with an experienced MEP firm offers many advantages: they can optimize material requirements to reduce installation costs, while achieving high performance and meeting codes. These services are very valuable in New York City, since local building costs are high and construction codes are demanding.

M: Mechanical Engineering:

Buildings use many types of mechanical systems. However, most of the mechanical design work in residential and commercial buildings deals with HVAC: space heating, ventilation, and air conditioning systems.

Mechanical installations operate at their best when equipment capacity is adequate. Contrary to popular belief, over engineering has many negative consequences. For example, oversized chillers and boilers tend to cycle rapidly, wearing down faster and causing indoor temperature variations. Another consequence of over engineering in mechanical systems is poor control of indoor humidity.

E: Electrical Engineering:

In high-rise constructions, finding the optimal routes for electrical conduit and wiring can save plenty of material. There tends to be more design flexibility than with mechanical systems, since electrical circuits use less space and can be routed around obstacles more easily. With the aid of MEP design software, conduit and wiring can be laid out while minimizing total circuit length, and avoiding location conflicts with mechanical and plumbing installations.

Lighting installations are the electrical system with the highest energy consumption in most buildings. LED lighting is frequently recommended by energy consultants, since it achieves typical savings of 30% to 90%, depending on the lamp type replaced. Many design software packages can simulate lighting, to determine the optimal number of fixtures and their layout.

P: Plumbing Engineering:

Plumbing installations are also subject to code requirements. The plumbing design process involves a layout of piping routes, similar to ductwork in mechanical design and conduit in electrical design. MEP engineers use advanced software to simplify the process and avoid clashes.

·         High-rise buildings normally need water booster pumps, which run with electricity.

·         Domestic hot water systems normally use a dedicated water heater, or a heat exchanger connected to a space heating boiler.

Added Value of MEP Design:

When designing building systems, an integrated MEP approach achieves better results than designing each system in isolation. Interactions between building systems are difficult to coordinate when the design process is isolated, and equipment location conflicts are very likely.

·         Given the complexity of MEP system layouts, modern engineering firms use software to speed up the design process.

·         Simple and repetitive tasks are automated by a computer, while MEP engineers can focus on making the best design decisions.

When modern MEP software is used, the value of the 3D model produced during the design phase goes beyond the construction stage. The model can be used as reference for maintenance activities, and it can be updated along with the building major renovations.