HomeGlossary Of Architectural terms

Eaves,
lower horizontal edge of roof assembly. Gutters are usually found here, affixed to fascia of eaves.
Elliptic Stairs,
Those elliptic in plan, having converging treads
Enamel,
paint composed of pigments and a vehicle called varnish
Extender,
an inert pigment meant to increase coverage area of paints (eg. silica, barium sulphate, calcium carbonate, gypsum)
Façade,
a false front, an artificial surface designed to imply that a structure is constructed of a material that it is not.
Fascia,
exterior face of roof edge assembly, refers to narrow board on edge or aluminum cover.
Fenestration,
a term applied to windows and doors, from the French "fenetre" meaning "window"
Flashing,
ductile material used to shed water in exterior assemblies. 
Flight of Stairs,
series of steps leading from one floor to another
Flush gutter,
see "Philadelphia gutter"
Flyers,
Steps in a flight that are parallel to each other
Footprint,
the area an object occupies on the surface upon which it is resting
Foyer,
small front room for the reception of guests and the stowage of outerwear
Fresco,
see "mural"
Frieze,
decorative strip below crown or cornice on wall, often embossed metal or plaster.
Front String,
the exposed stringer over which the handrail is positioned
Furring,
thin strips applied to a surface to eliminate surface imperfections or provide space for insulation
Gabions,
Metal cages or bins often filled with earth or stone, and stacked to retain a slope.
Gable,
Arched or triangular wall under roof end
Gammon line,
String used to support a plumb bob.
Gargoyle,
Mythological demonic creature, statues of which guard the tops of many very old buildings for superstitious reasons
Gazebo,
roofed shelter for outdoor entertaining
Geometrical Stair,
Stairs supported only by the wall to which it is attached
Glazer's Points,
small metallic wedges used to pin glass panes into muntins
Graffiti,
A mark or inscription on the possessions of others, denoting disrespect for others by the intentional depreciation of value for the sole purpose of demonstrating an opinion of triviality.
Grille,
framework placed against a single pane of glass, having apertures resembling those produced by muntins
Gypsum,
mineral used in the production of plaster, wall board, etc.
Hardwood,
Wood coming from any deciduous tree. Not necessarily hard.
Header,
beam over windows and doors in bearing walls, designed to provide support and distribute load to jack studs.
Headroom,
the distance between the spandrel of the nosing of a stair and the overhanging ceiling at the edge of the well hole, typically 80".
Hip,
side corner of two perpendicular roofs meeting on angle 
Hollow Newel,
an opening or well hole in the middle of a winding staircase
ICF,
1. an acronym for insulated concrete forms
2. an acronym for insulation compatible fixture
Intaglio,
Sunken relief, as on certain carved cornice-work
Jack stud,
short stud which supports window and door headers
Jalousie,
type of window designed to open completely by means of several horizontally-hinged panels pivoting in unison.
Kalsomine,
a cold water paint, it's vehicle is a solution of glue, casein, albumin or some other binder.
King wall,
short wall supporting divided or undersized roof from inside attic area
Knee,
a convex bend in the back of a handrail
Knee wall,
short wall above foundation, supporting first floor
Landing,
resting place midpoint along a flight of stairs
Latent Heat, 
Hidden heat load absorbed by melting solids or boiling liquids, and released by condensing vapors or solidifying liquids
Latex ,
1. a type of rubber occurring naturally, derived primarily from the milky sap of rubber trees
2. as a paint, it's vehicle is the aforementioned latex rubber
Lead,
Lead is dangerous in it's composition. Contact, inhalation, or drinking contaminated water poses risk. Lead is unlike many toxins in that it apparently is absorbed into the victim's bones. Lead poisoning has a cumulative effect. You cannot take a short break from exposure to it and come back to finish a project. Lead doesn't want to leave the body.  Lead can only slowly dissipate from your body. Most people are unaware that they still do have lead in their pipes. Most plumbing valves are made of brass, and brass valves are made with lead. This is not a serious danger compared to driving a car or air travel.
Linseed oil,
a vehicle derived from the seed of flax. it oxidizes and forms a waterproof film. Available raw or boiled, boiling removes some of the moisture. The resultant paint skins quickly, but cures slowly
Lintel,
large beam over a doorway, forming a header
LVL,
An acronym for Laminated Veneer Lumber. Usually employed as beams or shear panels. constructed in similar manner to plywood. Created in huge 40' x 40' sheets and cut to requested shapes