An air mixing system includes a building superstructure having an open space therein and an attic. An air mixing unit mounted to the ceiling draws air from the open space and the attic, mixes the air and discharges the mixed air outwards from the fan.

The present invention relates to a sound absorbing and insulating material with superior moldability and appearance and a method for manufacturing the same, more particularly to a sound absorbing and insulating material consisting of an inner sound absorbing and insulating layer 1 formed of a first nonwoven fabric mainly formed of a heat-resistant fiber and a binder uniformly distributed inside the first nonwoven fabric and maintaining the three-dimensional structure inside the first nonwoven fabric and an outer sound absorbing and insulating layer 2′, 2″ formed of a second nonwoven fabric mainly formed of a heat-resistant fiber, wherein the outer sound absorbing and insulating layer is stacked on one or both sides of the inner sound absorbing and insulating layer, and a method for manufacturing the same. The sound absorbing and insulating material of the present invention has superior sound-absorbing property, flame retardancy, heat resistance, heat-insulating property and high-temperature moldability. In addition, there is no concern of deterioration of surface appearance caused by leakage of the binder due to the presence of the outer sound absorbing and insulating layer.

The invention is related to a masonry reinforcement and to a dispenser therefore. The masonry reinforcement comprises a reinforcement strip that defines a strip plane and that is at least in one direction bendable. In the reinforcement strip multiple strip apertures are arranged along the longitudinal direction of the strip, each strip aperture comprising an aperture rim at the aperture rim or in the range of the aperture rim of some or all of the strip apertures rim serration members are arranged. The rim serration members are orientated inwardly. They can protrude out of the strip plane of the reinforcement strip in at least one direction.

The invention is related to a masonry reinforcement and to a dispenser therefore. The masonry reinforcement comprises a reinforcement strip that defines a strip plane and that is at least in one direction bendable. In the reinforcement strip multiple strip apertures are arranged along the longitudinal direction of the strip, each strip aperture comprising an aperture rim at the aperture rim or in the range of the aperture rim of some or all of the strip apertures rim serration members are arranged. The rim serration members are orientated inwardly. They can protrude out of the strip plane of the reinforcement strip in at least one direction.

A wall element including upper and lower elements at upper and lower edges. A first side element extending along the first side, a second side element extending along the second side and a substantially rectangular board are present. The upper and lower elements include a first edge coinciding with the first side and a second edge coinciding with the second side, wherein the first and second edges are arranged in an angle with respect to a plane perpendicular to the outer surface, the angle lies within the interval 20°-45°, and the first and second side elements extending parallel to the plane, perpendicular to the board and having a total extension corresponding to the extension of the upper and the lower element in the plane, wherein the first side element bear against the plate and the second side element extend from the inside of the wall element.

A wall element including upper and lower elements at upper and lower edges. A first side element extending along the first side, a second side element extending along the second side and a substantially rectangular board are present. The upper and lower elements include a first edge coinciding with the first side and a second edge coinciding with the second side, wherein the first and second edges are arranged in an angle with respect to a plane perpendicular to the outer surface, the angle lies within the interval 20°-45°, and the first and second side elements extending parallel to the plane, perpendicular to the board and having a total extension corresponding to the extension of the upper and the lower element in the plane, wherein the first side element bear against the plate and the second side element extend from the inside of the wall element.

A wall panel base trim a panel channel extending between first and second ends. The panel channel surrounds a panel groove configured for reception of a wall panel therein. The panel channel includes a blending fin extending from the channel base, the blending fin on a second side of the panel groove. A brace ridge extends between the first and second ends, the brace ridge projects laterally relative to the panel channel. A shadow flange extends away from the panel channel in a second direction, the shadow flange and the brace ridge cooperate to form a shadow line recess.

A pre-fabricated construction panel for use on an external surface and/or as part of a budding or construction is provided. The panel comprises at least a first layer which is at least partially provided from thermally insulating material having a first surface, the panel comprising at least a second layer, the at least second layer being provided from fiber cement board, the second layer having a second surface facing the first surface. The first surface is profiled having recessed surface zones and heightened surface zones, the first and second layers being connected one to the other at least along the heightened surface zones of the first, the recessed surface zones provides at least one interspace between the first and second surface. This at least one inter-space has at least two openings to the external of the panel for enabling air to flow into and out of the interspace towards the external of the panel. Less than 25% of the total surface of the first surface is connected to, e.g. adheres to, the second surface.

A pre-fabricated construction panel for use on an external surface and/or as part of a budding or construction is provided. The panel comprises at least a first layer which is at least partially provided from thermally insulating material having a first surface, the panel comprising at least a second layer, the at least second layer being provided from fiber cement board, the second layer having a second surface facing the first surface. The first surface is profiled having recessed surface zones and heightened surface zones, the first and second layers being connected one to the other at least along the heightened surface zones of the first, the recessed surface zones provides at least one interspace between the first and second surface. This at least one inter-space has at least two openings to the external of the panel for enabling air to flow into and out of the interspace towards the external of the panel. Less than 25% of the total surface of the first surface is connected to, e.g. adheres to, the second surface.

A panel comprised of at least one connector that facilitates connection with an adjacent panel. An exemplary embodiment of a panel may be comprised of a female connector and a male connector such that the male connector may be inserted in a female connector of an adjacent, substantially similar panel. The female connector may include a ridge, and the male connector may include a flange. An exemplary embodiment of a panel assembly may be formed when a male connector of one panel is inserted in a female connector of another panel such that the flange of the male connector slides over the ridge of the female connector to interlock the panels.