A door has a core that includes a first major surface having one or more first recesses, a second major surface opposite to the first major surface, and fire retardant material such as intumescent material applied to the first recesses and no more than about 20 percent by surface area of a remainder of the first major surface excluding the first recesses. A door skin includes an interior surface, an exterior surface, at least one contoured panel portion establishing a protrusion extending on the interior surface and an opposite depression extending into the exterior surface, and fire retardant material such as intumescent material applied to at least one of the protrusion or the depression and no more than about 20 percent by surface area of the remainders of the interior surface excluding the protrusion and the exterior surface excluding the depression.

A door include a first skin, a second skin, and a glazing unit. The first skin includes a first skin body portion, and a first flange portion extending inward from the first skin body portion. The first skin body portion has a first tip. A second skin includes a second skin body portion, and a second flange portion extending inward from the second skin body portion. The second skin body portion has a second tip. A glazing unit has an edge disposed adjacent to and between the first tip and the second tip. The first flange portion and the second flange portion provide an interlocking structure.

An illumination system is provided for an access door may include an elongated illumination housing configured to be coupled to at least one of an upstanding jamb and a corresponding jamb casing extending along the one side of the access door, an elongated light transmissive cover coupled to the illumination housing, an elongated light pipe received within the illumination housing, an illumination source housing operatively coupled to one end of the light pipe, an illumination source disposed within the illumination source housing and configured to produce and transmit visible light into the light pipe so as to be visible through the light transmissive cover, a source of electrical power, and a control unit configured to selectively apply electrical power from the source of electrical power to the illumination source to produce the visible light.

The present invention relates to shaker doors with solid cores and methods for making the same. The shaker doors contain different core materials at the recessed panel than the raise peripheral region to provide dimensional stability and reduced distortion when the doors are exposed to high humidity. The devices and methods also provide for easy assembly of solid core shaker doors, including fire rated doors.

The invention refers to a door structure with thermal bridge brake defined by a door element mounted through hinges on a metal frame; characterized by such door element being defined by an inner metal panel and an outer metal panel bent in the shape of an idler; with celeron hearths provided on the perimeter as thermal bridge break element, defining a middle cavity filled with expanded polyurethane or other materials with isolating properties. Such inner and outer metal panels are joined on the perimeter, through welding points. The metal frame consists of a hollow outer metal frame and a hollow inner metal frame filled with expanded polyurethane or other materials with similar isolating properties, with a celeron hearth between them as a thermal bridge break element, joined by welding points in specific areas.

Hollow core door apparatus for preventing the build up of pressure in a room having a register through which air flows into the room and the door includes an inside door skin and an outside door skin, and the door skins includes openings through which air flows and a center panel between the skins and spaced part from the skins. The center panel has an outer perimeter greater than the inner perimeter of the openings. The center panel is spaced apart from the skins, and also from the adjacent stiles and rails. A chamber is formed about the panel and between the adjacent stiles and rails and the openings in the skins. Air flow from the room is through the opening in the inside skin into the chamber, around the outer periphery of the panel, and outwardly through the opening in the outside skin in a non-linear manner.

A reinforcing structure for a door includes a first region constructed from a first grade of corrugated paperboard and second and third regions constructed from a second grade of corrugated paperboard. The first region may be expandable and the second and third regions may be non-expandable. A method for installing the reinforcing structure in a door having a frame and two opposed skins with recessed areas includes installing the reinforcing structure on the surfaces of the recessed areas between the skins.

Embodiments provide a door body which opens and closes a front part of an article body, and which has a front panel that constitutes the front of the door body, a frame that supports at least a part of the outside edge of the front panel, and a back panel that constitutes the back of the door body. According to at least one embodiment, the front panel includes a hard coat laminated sheet; the hard coat laminated sheet has a first hard coat, a second hard coat, and a transparent resin sheet layer in that order from the surface on the front side. The first hard coat is formed from a coating material which contains (A) 100 parts by mass of a polyfunctional(meth)acrylate, (B) 0.01-7 parts by mass of a water repellant and (C) 0.01-10 parts by mass of a silane coupling agent and which does not contain inorganic particles, and the second hard coat is formed from a coating material which contains (A) 100 parts by mass of the polyfunctional (meth)acrylate and (D) 50-300 parts by mass of inorganic fine particles having an average particle diameter of 1-300 nm. This door body may have a display on at least a part of the front thereof.

A thermally-broken ornamental door includes a thermally-broken door and a thermally-broken jamb through which thermal transfer is greatly minimized. The thermally-broken door includes an outer panel and an inner panel that are minimally connected through a plurality of door bridging strips. The thermally-broken jamb includes an outer jamb frame and an inner jamb frame that are minimally connected through a plurality of jamb bridging strips. An insulating foam panel is present between the outer panel and the inner panel while an insulating foam core is present between the outer jamb frame and the inner jamb frame. A window assembly is hingedly mounted into the thermally-broken door and includes a retaining spacer frame that minimizes thermal transfer from an exterior environment to an inner window frame through a glass panel of the window assembly. The retaining spacer frame additionally provides structural support to the glass panel.