A sliding door system may satisfy the requirements of, and be fire-rated in accordance with, UL10B (Standard for Fire Tests of Door Assemblies), and/or satisfy the requirements of, and be pressure-rated in accordance with, UL10C (Standard for Positive Pressure Fire Tests of Door Assemblies).

An anti-ballistic door having a keyed joint assembly substantially defining an inner perimeter of the door, and a bullet persistent panel secured internal to the door using the keyed joint assembly. The anti-ballistic door has up to a UL 752-Level 8 protection rating having a lower weight relative to conventional anti-ballistic doors and is sized to fit within conventionally sized door frames. An anti-ballistic panel is additionally provided having a keyed joint assembly substantially defining an inner perimeter of the panel, and a bullet persistent panel secured internal to the panel using the keyed joint assembly. The anti-ballistic panel has up to a UL 752-Level 8 protection rating.

The invention provides a glazing sheet and a low-emissivity coating on the glazing sheet. The low-emissivity coating comprises, in sequence moving outwardly from the glazing sheet, a layer comprising oxide film, nitride film, or oxynitride film, an infrared-reflective layer, a nickel-aluminum blocker layer, and an oxide layer. Also provided are methods of depositing such a low-emissivity coating.

Systems and methods for pressing a door assembly involve one or more die sections installed in a press, wherein the die sections each have a raised section that contacts and supports a recessed panel portion of a door skin of the assembly during the pressing operation to facilitate crushing of portions of a core of the door assembly that underlie the recessed panel portion of the door skin. The die sections may be made of plastic and readily changed out for different sizes or styles of doors.

A door skin is provided that includes at least one inner panel, an outer body portion surrounding the at least one inner panel, and at least one contoured portion surrounding the at least one panel and interconnecting the at least one panel to the outer body portion. The at least one contoured portion is recessed from the at least one panel and the outer body portion and includes a center base portion that interconnects with the outer body portion via a first sloping portion and with the panel via a second sloping portion. The first sloping portion includes a first angled portion and a first bump. The second sloping portion includes second and third bumps.

A door system includes a door having a frame forming at least a portion of a perimeter of the door and a sleeve configured to encase at least a portion of the frame. The frame is constructed from a first material and the sleeve is constructed from a different second material. The first material may be electrically conductive and the second material may be electrically insulating. Alternatively or additionally, the first material may be susceptible to wear and tear and the sleeve may be resilient and replaceable.

Embodiments of the disclosure are directed towards a composite stiffener that is incorporated into panelized products to create stronger bonding, greater adhesion between laminated layers and less warping sandwich panels. In addition, the resulting products incorporating composite stiffeners can be lightweight, yet stronger than other lightweight panels.

A door skin is provided that includes at least one inner panel, an outer body portion surrounding the at least one inner panel, and at least one contoured portion surrounding the at least one panel and interconnecting the at least one panel to the outer body portion. The at least one contoured portion is recessed from the at least one panel and the outer body portion and includes a center base portion that interconnects with the outer body portion via a first sloping portion and with the panel via a second sloping portion. The first sloping portion includes a first angled portion and a first bump. The second sloping portion includes second and third bumps.

A device for closing a building opening, wherein a planar closure element and/or a frame rigidly attached to the edge of the building opening has a frame profile, which by way of two lateral surfaces delimits a profile cavity that is open toward the rebate face, wherein from each of the two lateral surfaces, a profile wall projects toward the direction of the respective other lateral surface. On the projecting profile walls, a metal cover plate and a clamping part are attached such that they are pulled together by screws, with the interposition of the profile walls. On the two projecting profile walls, a clamping part abuts, in each case, both flanks of a groove, the opening surface of which is parallel to the connecting surface between the two projecting profile walls.