Fire stops for floor voids

Fire stops for floor voids

A fire stop (20) for a floor void consists of a stack of mineral fibre lamellae (21) held compressed together by smoke-impervious facing layers (28) of aluminium foil. The fibre orientation in the lamellae (21) is generally horizontal. The fire stop (20) has rebated edges (25) to improve fire resistance at the joins, and large versions of the stop have stabilising feet (29). Material for the stop can be made and rebated in a continuous process, and subsequently cut to pieces of the desired height. ...

Construction boards containing mineral fibre lamellae

Mineral fibre lamellae (22) are arranged edge-to-edge in a long series to form a construction board (26a, b, c). The lamellae (22) are angled non-perpendicularly to the longitudinal direction of the series. A construction panel is made by sandwiching a set of such boards (26a, b, c) between stiff outer layers (27), typically of metal. The inclination directions of the lamellae (22) alternate from one board to the next, to reduce lines of potential weakness. The series of angled lamellae may be assembled by conveying a series of mineral fibre lamellae in a conveying direction with the lamellae aligned transversely but non-perpendicularly relative to the conveying direction, compressing the lamellae edge to edge by transition from a faster conveyor to a slower conveyor and applying a retaining layer such as open mesh fabric or net to one or both surfaces of the edge to edge compressed lamellae. ...

Herstellung von schichtförmigen Mineralfaserprodukten

Mineral fibre boards,composite panels and methods of making them

Herstellung von schichtförmigen Mineralfaserprodukten