MEP Engineering for Building Renovations & Existing Buildings
About 80% of R.E. Dimond and Associates’ work is complex renovation and adaptive reuse. Existing buildings raise questions that new construction does not: what is actually installed above the ceiling, whether current systems can support a new use, and what can stay versus what needs to change. These are the questions we hear most.
Before You Start a Renovation
For renovations that will affect HVAC, electrical, plumbing, or technology systems, early engineering involvement can help identify existing conditions that may affect the project. Available electrical capacity, HVAC capacity, equipment condition, utility locations, ceiling space, and existing infrastructure can influence the project’s scope, cost, and feasibility.
In addition to architectural and structural conditions, an older building’s HVAC, electrical, plumbing, fire protection, and technology infrastructure should be evaluated. An assessment can identify aging equipment, capacity limitations, code concerns, deferred maintenance, and systems that may require significant investment.
Existing drawings are useful but may not show every modification made during a building’s life. Field investigation can document visible ductwork, piping, electrical systems, structure, and other conditions. In complicated renovations, additional investigation may be recommended before design is finalized.
Existing drawings may be incomplete or may not reflect changes made over time. A site investigation allows engineers to observe existing equipment, routing, available space, system condition, and potential conflicts that could affect the design.
Evaluating What Can Stay and What Needs to Change
Often, yes. Existing systems can be evaluated to determine what can remain, what should be modified, and what needs replacement. The decision should consider condition, capacity, code requirements, remaining useful life, and how the renovation will affect each system.
Engineers evaluate the proposed use of the space, heating and cooling loads, ventilation requirements, existing equipment capacity, air distribution, controls, and the condition of the existing system. A space that appears similar in size may have very different HVAC requirements after renovation.
A change in use can affect HVAC loads and ventilation, electrical demand, plumbing fixture requirements, fire protection, technology infrastructure, controls, and applicable codes. Evaluating these systems early can identify upgrades that need to be incorporated into the project.
Possibly, but existing equipment and infrastructure should be evaluated before assuming they have sufficient capacity. HVAC equipment, electrical service, plumbing systems, utilities, controls, and other infrastructure may require modifications to support an addition.