Plenum Rated Sound Insulation

For additional ﬁre and sound rated wall and ceiling assemblies utilizing thermafiber sound attenuation fire blankets contact thermaﬁber inc. Rockwool comfortboard 80 is a rigid mineral wool insulation sheathing board that is non combustible water repellent fire resistant and sound absorbent. Ul design or other ﬁre test or sound test information are identiﬁed at the end of the assembly description.

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Rockfon plenum barrier board is an air plenum barrier and is used to improve sound isolation and speech privacy between rooms.

Plenum rated sound insulation.

A wide variety of systems are shown to provide choices in performance and cost. Ceiling partition sonobatt insulation reduces room to room noise transfer over the top of the partition. Sound transmission class stc rating by 4 10 points. Resists fiber erosion when sonobatts insulation is used in a return air plenum for acoustical benei t the unfaced insulation has been tested according to ul 181 air erosion test and can be used for air velocities up to 1 000 fpm.

The plenum barrier extends from the top of the partition to the underside of the floor or roof above blocking the plenum acoustically. Tests were performed according to astm e1414 standard test method for airborne sound attenuation between rooms sharing a common ceiling plenum and astm e413 classification for rating sound insulation. The suspended acoustic ceiling and lightweight plenum barrier work together effectively as a system to provide the same amount of sound isolation as the stc rated wall construction below the ceiling level. Comfortboard 80 exterior non structural insulation.

And is thick. Sheald for plenum barriers and sound insulation blankets weighs 1 lb. I t is normally supplied in 3 ft. Easy installation installation of sonobatts insulation is easy.

When sonobatts insulation is used in a return air plenum for acoustical benefi t the unfaced insulation has been tested according to ul 181 air erosion test and can be used for air velocities up to 1000 fpm. It has an nrc of 95 which indicates that the cotton insulation absorbs nearly all sound furthermore quiet batt 30 improves sound control while maintaining traditional insulating resistance value r value. Figure 3 shows the single and double layer stone wool plenum barriers being installed in the laboratory for testing. Wide rolls 36 feet l ong.

The cotton insulation absorbs sound within wall and ceiling cavities reducing the sound transfer from one space to the next. Is available in rolls measuring 3 ft. Sheald in weights of 2 lbs. This acoustic blocking material installs quickly above interior partitions and can conform around pipes and ducts to act as a sound blocking wall panel.

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