Ul design or other fire test or sound test information are identified at the end of the assembly description.
Plenum rated sound insulation.
I t is normally supplied in 3 ft.
Is available in rolls measuring 3 ft.
Figure 3 shows the single and double layer stone wool plenum barriers being installed in the laboratory for testing.
Sheald in weights of 2 lbs.
Sheald for plenum barriers and sound insulation blankets weighs 1 lb.
A wide variety of systems are shown to provide choices in performance and cost.
Comfortboard 80 exterior non structural insulation.
Rockwool comfortboard 80 is a rigid mineral wool insulation sheathing board that is non combustible water repellent fire resistant and sound absorbent.
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.
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.
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.
The cotton insulation absorbs sound within wall and ceiling cavities reducing the sound transfer from one space to the next.
For additional fire and sound rated wall and ceiling assemblies utilizing thermafiber sound attenuation fire blankets contact thermafiber inc.
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.
Wide rolls 36 feet l ong.
Sound transmission class stc rating by 4 10 points.
And is thick.
Easy installation installation of sonobatts insulation is easy.
Rockfon plenum barrier board is an air plenum barrier and is used to improve sound isolation and speech privacy between rooms.
Ceiling partition sonobatt insulation reduces room to room noise transfer over the top of the partition.