Covers for door jambs and mullions

In combination, an elongate jamb plate, and an elongate nosing for mounting to said elongate jamb plate,

• said elongate jamb plate comprising
• (a) a main side panel for covering at least a major portion of a side surface of a jamb substrate, along at least a major portion of a length of such jamb substrate, and
• (b) an outer panel extending along at least a major portion of the length of such jamb substrate, and extending at an angle transverse to said main side panel, and extending away from said main side panel and over the outer surface of such jamb substrate, said outer panel comprising a first mounting structure,
• said elongate nosing comprising
• (c) a second mounting structure, designed and configured to cooperatively engage said first mounting structure of said jamb plate, thereby to mount said nosing and said jamb plate to each other, said nosing, when so mounted to said jamb plate, extending in a direction away from said main side panel of said jamb plate to a distal side of said nosing,
• the combination of said jamb plate and said nosing, when so mounted to each other, comprising a mounting fin kerf in a region from proximate the distal side of said nosing to proximate said first mounting structure.

A pre-assembled door frame for assembly into a building at an opening in such building, said pre-assembled door frame comprising:

• (a) an elongate jamb substrate having a length, an outer surface for facing outwardly away from such building when said door frame is assembled to such building, and a side surface for facing across such opening whereat said door frame is assembled to such building;
• and
• (b) a jamb cover assembly on said elongate jamb substrate, said jamb cover assembly comprising
• (i) an elongate jamb plate comprising
• a main side panel covering at least a major portion of the side surface of said substrate, along at least a major portion of the length of said substrate, and
• an outer panel extending along at least a major portion of the length of said substrate, and extending at an angle transverse to said main side panel, and extending away from said main side panel and over the outer surface of said jamb substrate, said outer panel comprising a first mounting structure, and
• (ii) an elongate nosing comprising a second mounting structure, engaged with said first mounting structure on said outer panel of said jamb plate and thereby mounting said nosing and said jamb plate to each other, said nosing extending in a direction away from said main side panel to a distal side of said nosing,
• said jamb cover assembly comprising a mounting fin extending outwardly beyond the distal side of said nosing and in a direction away from said main side panel of said jamb plate, said mounting fin being sized and configured thereby to enable mounting said jamb cover assembly to a framing member of such building at an outwardly-facing surface of such framing member while said nosing is mounted to said jamb plate.

A cladded mullion assembly, comprising:

• (a) a mullion substrate having a length, first and second opposing side surfaces facing in opposing directions, generally along an outer surface of a building when said cladded mullion assembly is installed on such building, and an outer surface facing outwardly from such building when said cladded mullion assembly is installed on such building;
• (b) a first elongate jamb plate comprising a first main side panel extending along at least a major portion of the first side surface of said mullion substrate, along at least a major portion of the length of said mullion substrate, said first elongate jamb plate further comprising a first outer panel extending along at least a major portion of the length of said mullion substrate, and extending at an angle transverse to said first main side panel, and extending away from said first main side panel and over the outer surface of said mullion substrate, said first outer panel comprising a first mounting structure;
• (c) a second elongate jamb plate comprising a second main side panel extending along at least a major portion of the second side surface of said mullion substrate, along at least a major portion of the length of said mullion substrate, said second elongate jamb plate further comprising a second outer panel extending along at least a major portion of the length of said mullion substrate, and extending at an angle transverse to said second main side panel, and extending away from said second main side panel and over the outer surface of said mullion substrate toward said first outer panel of said first jamb plate, said second outer panel comprising a second mounting structure;
• and
• (d) an elongate nosing comprising a third mounting structure engaged with said first and second mounting structures on said first and second jamb plates and thereby mounting said nosing to said first and second jamb plates such that said nosing bridges said jamb plates, thereby locking together the combination of said nosing and said first and second jamb plates proximate the outer surface of said mullion substrate.

A method of installing a door frame in a door opening in a building, comprising:

• (a) at an off-site location, assembling the door frame comprising
• (i) assembling together left, right, and top frame substrate members, each having a side surface facing inwardly of the opening in the building when installed in the building and an outer surface facing outwardly away from the building when installed in the building, thereby to make a door frame precursor having left, right, and top frame elements,
• (ii) installing, on the substrate members, elongate jamb plates wherein each jamb plate comprises a main side panel covering at least a major portion of the side surface of the respective substrate member, and an outer panel extending along a major portion of the outer surface of the respective substrate member,
• (iii) mounting nosings on the outer panels of the jamb plates, and
• (iv) at at least one of the left, right, and top frame elements, assembling a mounting fin to one of the respective jamb plate and the respective nosing, the mounting fin extending outwardly away from the main side surface and away from both the nosing and the jamb plate,
• (b) transporting the so-assembled door frame to the building site;
• and
• (c) installing the so fully assembled door frame to the building, including securing the mounting fin to a building frame member while the respective nosing is installed on the respective jamb plate.