Did you know there have been recent updates to the UFC 3-520-01 guidelines for interior electrical systems? The new changes highlight the following: Surge Protective Devices (SPDs) can now be inside the panelboard. The surge counter must be visible and made by the same manufacturer as the panel. Conductor sizing now requires adjustments for ambient… Read More

Did you know a DoD building code was recently updated? This update changes the referenced versions of ICC codes from 2021 to 2024, as well as additional modifications, including anti-ligature requirements for barracks and dormitories. For more information, visit the Whole Building Design Guide website at https://www.wbdg.org/dod/ufc/ufc-1-200-01

Steam heat is one of the oldest and most reliable heating systems in office buildings today. Other, newer technologies have come along that are more efficient. But removing old steam heating systems to replace them with more modern alternatives is cost prohibitive, so building owners who currently rely on steam heat have many incentives for… Read More

Rectangular ductwork has traditionally been used for HVAC renovation projects, especially for interior ductwork. Of late, round ductwork is being considered more as an option for external ductwork use, in the right conditions. Recently, when renovating multiple buildings as part of a single project, it became apparent that long runs of external ductwork should be… Read More

Many buildings today utilize rooftop equipment. Generally speaking, most rooftop HVAC air handling units and exhaust fans are installed with duct connections made below the roof. Every once in a while, we find that roof mounted duct is required to get the air where it needs to go. Designing rooftop duct is not as simple… Read More