Therma-Tru SHOP 1 General Information - Book Size - Manual (Page 3)

General
Information
Shop 1 2014 (BOOK SIZE) 1.3
Glossary of Door Shop Terms
Active: In paired or double doors, the
hinged door leaf which is primarily operable.
Air Infiltration: Air passing through a door
system when the door is under pressure,
usually from wind.
Annealed Glass: Regular glass which has
not been heat strengthened or tempered.
Most window glass is annealed.
Astragal: The post-type fitting on the latch-
side edge of one of a set of paired or double
doors, which covers the margin between
doors when they are closed, and which
houses or contains the weatherstrip.
Backset: For locating a machined hole,
recess, or mortise, the distance from an
edge or surface to the center or edge of the
recess, hole or mortise.
Ball-bearing Hinge: A heavier-duty hinge
than the standard hinge, with bearings sup-
porting the pivots. Ball-bearing hinges are
usually used for heavy doors that will be in
commercial or industrial use.
Barbed: An adjective that describes the fea-
ture of a part which inserts into a slot, and
which has surface features that enable it to
stay firmly inserted into the slot.
Boot: A term used for the rubber part at the
bottom or top end of an astragal, which beds
the astragal end and seals between the end
and the door frame or sill.
Boss, Screw Boss: A feature of a part
which enables the fastening of a screw into
the feature, thereby allowing assembly of
the part with another. Screw bosses are
common features of molded plastic lite
frames and extruded aluminum door sills.
Box-Framed: In door and sidelite assem-
blies, a term used to differentiate door and
sidelite units which are first framed as sepa-
rate units, with heads and sills separate
and the width of the door or sidelite panels.
Box-framed doors are joined to box-framed
sidelites.
Brad: A small nail with a small head, usually
used to fasten small trim and moldings.
Brickmould: A molding, used to trim the
outside edge of a door frame. Brickmould is
most often applied to prehung units.
Buck: A term usually used in masonry con-
struction to describe a door frame or a sub-
frame in a masonry opening, around which
a steel door frame wraps and is fastened.
Butt: A type of hinge commonly used to
assemble doors. Butt hinges are often re-
ferred to as simply butts.
Butyl: An organic compound, used in the
door business as a sealant. It is naturally
black, and is heated and pumped through
nozzles, or pumped cold.
Came, Caming: Formed metal stripping,
usually made of brass or zinc plated steel,
used between cut-glass pieces to assemble
the pieces into a decorative glass panel.
Caming is soldered at joints to bond the
glass assembly together.
Carpet Shim: A spacer block used under
a door sill to raise the sill an appropriate
amount if carpet is used, so the door panel
clears the carpet when opened.
Casing: A horizontal or vertical molding,
which accents or trims edges of doors and
windows to the surrounding walls. Casing
also covers or accents intermediate posts.
Caulk: To fill or close seams or crevices in
order to make watertight, airtight, etc.
Clad: Provided with a facing or jacket which
works as a protection against weather, and
provides a finished appearance. Cladding
may be painted metal, plastic, or a heavy
coating applied by the manufacturer.