Separating membrane of plastic material, made up of a bossed and waterproof sheet which is coupled with a permeable base layer. The bosses are of the cylindrical type with a double diameter and have such a shape and arrangement as to feature improved adhesion on both faces. The gripping of the adhesive is increased in order to obtain greater tear strength, on the upper face, and at the same time increases the area of contact with the base layer for a greater resistance to delamination on the lower face. In particular, inside each chamber there is an internal crown, which divides it like a necking into two superimposed compartments having the same diameter, wherein the first compartment has a depth amounting to at least ⅓ of the total. A production process for obtaining the membrane is also disclosed.

Roof covering (I) for flat roofs, comprises (A) a polymeric sealing layer and (C) a self-adhesive layer, separated by a soft elastomeric intermediate layer (B).

Coupling system (3, 30) for coupling building panels (1, 2; 31, 32) or sandwich panel comprising two cover sheets (5, 6; 33, 34, 36, 37) and a core (4, 39) of insulating material sandwiched between the two cover sheets, in particular for building a roof structure. The building panels have matching coupling edges (7, 8; 40, 41), profiled to define one or more water discharge channels (19; 59, 64) running substantially parallel to the coupling edges.

A roofing system including a plurality of roofing panels that can be releasably secured to rafters or other supports of the roof by connectors. In embodiments, the connectors can include first and second connectors, each of which can include a plate with a projection extending therefrom, and with the plates defining flanges on each side of the projection. The plates of the first and second connectors are configured to seat on and at least partially extend along one of the rafters of the roof structure and along exterior facing surfaces of adjacent ones of the roofing panels to releasably secure the roofing panels to the rafters.

A roof system includes a roof deck, a weighted cover board disposed upwardly adjacent the roof deck and a plurality of fasteners coupling the weighted cover board to the roof deck.

Example embodiments of the described technology provide a prefabricated building panel. The prefabricated panel may comprise a rigid insulative core having first and second opposing surfaces. A first cementitious material may at least partially cover the first surface of the insulative core. A second cementitious material may at least partially cover the second surface of the insulative core. At least one embedded element may extend along a peripheral edge of the insulative core.

A covering having insulated panels is meant to prevent or slow the spread of fire. Each panel has a top cover; a fire-prevention layer having a fire-retardant material, a fire-resistant material, or a combination of both; and an insulation layer. The fire-prevention layer is located, at least partially, between the top cover and the insulation layer. When there are two or more insulated panels, they interlock at a joint and form a plane.

A roofing system including a plurality of roofing panels that can be releasably secured to rafters or other supports of the roof by connectors. In embodiments, the connectors can include first and second connectors, each of which can include a plate with a projection extending therefrom, and with the plates defining flanges on each side of the projection. The plates of the first and second connectors are configured to seat on and at least partially extend along one of the rafters of the roof structure and along exterior facing surfaces of adjacent ones of the roofing panels to releasibly secure the roofing panels to the rafters.

A method and a mineral wool product include a multiple of lamellae, such as a sandwich panel core. The product includes a plurality of lamellae cut from a mineral wool web, and bonded together by applying an adhesive on the surfaces of two adjacent lamellae to form a web-like product, wherein the adhesive comprises at least one hydrocolloid.

A panel useful as a roof deck material (and optional insulating material, and optional moisture barrier) for a roof of a building or as a wall material for a wall of a building comprises a plurality of side members comprising at least a first side member, a second side member, and a third side member. A void capable of receiving an insulating material exists between at least the first side member, the second side member, and the third side member. The panel also comprises a plurality of stiffeners comprising at least a first stiffener spanning a first distance between at least two side members of the plurality of side members.