Roof Curb Sound Insulation

Roof curbs shall be level at the top with pitch built in when deck slopes 1 4 per foot or greater or as detailed.

Roof curb sound insulation.

All welded 18 gauge galvanized steel construction. Roof curbs to be insulated with 1 1 2 thick 3 lb density fiberglass insulation and have factory installed wood nailers. 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. Top of all roof curbs shall be level with pitch built into curb when deck slopes.

Insulation also mitigates outside noise coming into buildings. Operational sound is a fact of life for any roof fan regardless of how expertly engineered or finely balanced. Sound attenuating curbs in several curb styles 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. 1 1 2 fiberglass sound attenuating thermal insulation.

Curb mounted insulation helps absorb percentages of this sound. Sound attenuation batt insulation complies with astm c 665 type i astm e 136 and the mea 332 83 m requirements of new york city. And skymaster power roof exhausters on exceptionally quiet ventilating applications or where the specifications require sound attenuating curbs. Contractor fabricated roof curbs will not be accepted.

Operational sound is a fact of life for any roof fan regardless of how expertly engineered or finely balanced. The surface burning characteristics of sound attenuation batt insulation were derived from product tests per astm e 84. Fastcurbs offers custom roof curbs metal building roof curbs rooftop equipment rtu curb equipment rails skylight curbs and custom rooftop unit adapters. Specifications often call for sound curbs or sound attenuating curbs.

Products manufactured in the usa by kinetics noise control. Internally insulated with 1 1 2 thick 3 lbs. Custom sizes with any roof pitch. All pennbarry roof curbs attenuate sound.

Insulation also mitigates outside noise coming into buildings. Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer. Minimum curb height is 8 on shortest vertical height standard height is 12. Height to be 8 above finished roof or as de tailed.

Federal specification hh i 521f has been canceled and is replaced by astm c665.