Sound Attenuating Roof Curb

Specifications often call for sound curbs or sound attenuating curbs.

Sound attenuating roof curb.

Sound and vibration isolation roof curb. Federal specification hh i 521f has been canceled and is replaced by astm c665. From humble beginnings more than 35 years ago mgm products has its roots in the hvac industry supplying everything from ductwork to roof curbs. 2019 vibro acoustics a swegon group company.

All welded 18 gauge galvanized steel construction. The surface burning characteristics of sound attenuation batt insulation were derived from product tests per astm e 84. This acme development utilizes a core of modular type sound absorbing cells that exposes a very large sound absorbing surface to the sound transmitted to the curb from the power roof ventilator. Accessible customer service policy.

Minimum 16 high with optional damper box available. And skymaster power roof exhausters on exceptionally quiet ventilating applications or where the specifications require sound attenuating curbs. Sound attenuating curbs in several curb styles. All pennbarry roof curbs attenuate sound.

Fastcurbs offers custom roof curbs metal building roof curbs rooftop equipment rtu curb equipment rails skylight curbs and custom rooftop unit adapters. By consistently upgrading our machinery and adding new technologies we have grown into a world class manufacturing facility focusing on accessory products for the commercial hvac industry. Vibration from fans and compressors source 1 and vibration from casing radiated noise caused by duct turbulence and the airborne noise of the fans and compressors source 2. Curb mounted insulation helps absorb percentages of this sound.

Minimum curb height is 8 on shortest vertical height standard height is 12. A wide variety of roof curbs are available including. Roof curbs extensionspage header and equipment supports prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the fan curb and roof opening. Contains a streamline modular core of special acoustical fiberglass sound absorbing cells in a galvanized steel frame that reduces transmitted noise by approximately 40 and reduces total air flow by only 3 to 4.

Custom sizes with any roof pitch. Kinetics essr vibration isolated curb system addresses all noise sources associated with packaged rooftop equipment. Insulation also mitigates outside noise coming into buildings. 1 1 2 fiberglass sound attenuating thermal insulation.