The ADDSORB® REV revetment is a composite wood veneer finish consisting of a medium/highdensity coloured fibreboard which is grooved on the face and perforated on the back,its box interior is filed with a polystyrene absorbent layer. This is a CLASS A fire retardant product. The ADDSORB� REV revetment is also available, as an option, in natural wood veneer finishconsisting of medium density fibreboard (MDF). This is a CLASS C fire retardant product.This type of acoustic covering is mainly used for large-scale areas of application: auditoriums,conference rooms, multipurpose rooms, airports, places where acoustic treatment with acontinuous coating surface is required.It is an absorbent panel that relevantly improves absorption in the mid-range of the sound spectrum. The ADDSORB� REV is presented in both standard and customised sizes providing differentaesthetic and acoustic variants. These two finish options give this product a variety of natural woodfinishes and colours. Due to their slots, the panel joints are invisible because of the change ingeometry of the panel edges, and when carefully installed the surfaces can appear uniform.The acoustic absorption coefficients are achieved by combining the percentage of the plate's groovesand perforation with the polystyrene absorbent layer. The acoustic performance may be increased ifthe product is applied with an air space between the product and the main wall or ceiling. The ADDSORB� REV is available for both ceiling and wall applications. It can be installed using thestandard metal ceiling suspension system or direct fixing to the concrete surface using our mounting accessories (JOCAVI� metal bars, glues and screws). JOCAVI� can customize the sizes, perforations, colours and finishes, according to each specificproject, but a minimum amount is required.