Acoustical Rating |
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Skyfold is an acoustical wall that is hard, rigid and flat in its down position. When not in use, however, it folds vertically for storage in the ceiling. Developed as a modular system, it consists of a grid of rectangular acoustical panels. |
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A completely functioning operable wall, tested in full accordance and compliance with ASTM E90-90 shall achieve a Laboratory Sound Transmission Class acoustical rating of not less than 51. The acoustical panels, when tested in accordance with the ASTM E90-90 protocol, shall achieve a Laboratory Sound Transmission Class STC rating of not less than 54. |
Each acoustical rating panel shall be individually removable using only a screw driver. No special tools or equipment shall be required. The removal of a single acoustic panel shall not affect, dislocate or cause the removal of any adjacent panels or other acoustical rating panels. The operable wall shall be mechanically operable with a few of the acoustic rating panels removed from one, or both sides of the operable wall. |
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