Noise absorption weather protection grilles are designed to prevent the ingress of rainwater and at the same time to reduce the transmission of noise through the intake and exhaust openings of building facades. They are either installed as components in ventilating equipment or used as natural ventilation facilities of building complexes. Compared with the conventional weather protection grilles, the noise absorption version can significantly reduce the noise level.
The noise absorption weather protection grille consists of a rigid housing with fins mounted to it in horizontal position. The fins are of special design with mineral wool, which is protected by glass fleece and a perforated cover plate.
Optional available with protection against icing.