Specialties: ARE Building Systems

7. SPECIALTIES

Acoustics

Reverberation: Persistent sound reflection from enclosed space
Not: Creep, Dampening, frequency
Vibration isolator: is springs, plastics, or dampening device to reduce vibration of equipment on walls, floors, etc.
Not: Resilient hanger, flexible coupling, paver pedestal
Duct lining is most effective reduction of low frequency noise
Not: Mufflers, dampers, turning vanes
Sabins: Units of sound absorption
Not: Watts, decibels, degrees
Absorption is best effective control of noise generated in a space
Not: Reflection, focusing, diffusion

D. FIRE DETECTION AND SUPPRESSION

Dry Pipe sprinkler system (versus wet-pipe sprinkler) is designed so that sprinkler water pipe will not freeze in unheated spaces (very cold areas)
Not: since it is lighter and less expensive, fewer valves and fittings, no water corrosion