ROKU® System AWM II EN 13501

The ROKU^® System AWM II consists of a solid metal sleeve which is equipped with several layers of the high performance intumescent material „ROKU^®® Strip“. In the event of a fire, the intumescent material expands with high pressure and thus seals the opening hermetically against flames and smoke. For wall installations one pipe collar on each side of the wall and for floor installations one collar on the underside of the floor must be provided.