12 Office Building Roof Top Mechanical Equipment Noise

Noise Expert (acoustical engineers) was asked to evaluate the mechanical noise from a rooftop HVAC system located directly above an open office space in Chandler, Arizona.

The low frequency noise levels were very high in the office spaces below the roof top unit.  The ductwork takes an abrupt 90 degree turn under the roof in duct that is too small for the volume of air being moved.  Hence, the air velocities are very high and cause low frequency rumble.

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8 Litigation in Multi-Housing Buildings – Noise

The top 3 reasons for litigation encountered in multi-housing buildings. In fact, pets, parking and impact noises (footsteps such as high heels, falling objects, moving furniture, etc.) are the main sources of conflict experienced in condos, apartments and hotels. With the evolution of floor coverings in such environments (from carpet/resilient to wood), soundproofing is becoming a major concern in renovation and new construction. Today, before purchasing a housing unit, buyers are more than ever asking about the acoustical performance.

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6 Indoor Theme Parks

Noise Expert has evaluated the noise at several indoor attractions including: Sea Life and Lego Land.  The primary noise issues that we addressed was sound isolation between display areas (where walls do not go to the structure) and the room acoustics in various spaces.  Our study included predictions and measurements.