Smooth-Looking Acoustic Insulation –
The common use of glass wool with black fleece is as acoustic insulation for open ceilings, which provides a monolithic appearance of a continuous black finish above the ceiling. The insulation can reach above open ceilings such as slatted ceilings or various grid ceilings, and can be integrated into mesh ceiling tiles. With the fleece, this product can be used when it is visible to the eye.
The black fleece is intended to prevent the shedding of glass fibers and give an elegant – black appearance to viewers from below.