A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
I-beam– A steel beam with a cross section resembling the letter I. It is used for long spans as beams or over wide wall openings, such as a double garage door, when wall and roof loads bear down on the opening.
I-joist– Manufactured structural building component resembling the letter “I”. Used as floor joists and rafters.
Imposed load (Timber Roof Structures) – (live load)- non-permanent loads such as snow, ice, rain, construction/maintenance activities etc.
Incandescent lamp– A lamp employing an electrically charged metal filament that glows at white heat. A typical light bulb.
Infill concrete (Masonry) – A highly workable concrete placed in cores, cavities or pockets to produce grouted and reinforced masonry.
Inside corner– The point at which two walls form an internal angle, as in the corner of a room.
Insulating glass– Window or door in which two panes of glass are used with a sealed air space between. Also known as Double glass or double glazing.
Insulation– Any material high in resistance to heat transmission that, when placed in the walls, ceiling, or floors of a structure, and will reduce the rate of heat flow.
Irrigation– Watering system for gardens.