ABSTRACT
Owners with traction elevators also have choices that can dramatically affect the cost and facility services depending on the choices made in design, whether twelve-pulse silicon controlled rectified (SCR) drive, six-pulse SCR drive with a filter, non-regenerative variable frequency drives or regenerative variable frequency drives. Some areas that should be considered when upgrading the roof include: One way to make a decision is to use the Solar Roof Index to evaluate a cool roof. When installing or repairing roofing consider installing an additional layer of roofing material identifying reinforced walkways and areas immediately surrounding mechanical equipment. Windows provide significant surface area that has less insulation and therefore often times present a significant opportunity to reduce energy consumption. When loading docks and receiving areas are installed in office or mixed use buildings often times there is little separation between the loading area and occupied space.
