Calcined gypsum mixed with lightweight aggregates.

In one- and two-family dwellings not more than three stories high with separate means of egress, a building, the use of which is incidental to that of the main building and which is located on the same lot.

A glazing unit used to reduce the transmission of sound through the glazed opening by bonding a soft interlayer between the layers of glass.

A ceiling of fibrous tiles that are highly absorbent of sound energy.

Signifies access without the necessity for removing a panel or similar obstruction.

A building or structure on the same lot as the main or principal building.

Are extra items that can be furnished in addition to the base joist or joist girder. They include: headers, top chord extensions, extended ends, ceiling extensions, bottom chord extensions, sloped end bearings, bridging, bridging anchors, joist girder bottom chord bracing, or angle units (joist substitutes).

A building product which supplements a basic solid panel building such as a door, window, light transmitting panel, roof vent, etc.

Motif in classical architecture found on Corinthian columns

Right of an owner to have ingress and egress to and from a property.

Flat portion on top of a capital.

- Also referred to as the wear rating, it is the European Standard AC Rating. The range runs from the least resistant rating of AC1 To AC5, the most resistant to abrasion.

A small metal or wood door flush with a wall or ceiling surface which provides a closure over a valve or other operable device which is recessed into the wall or located above a ceiling. The access door may be keyed and lockable.

The relative ability to absorb sound and light.

A motif derived from the large leaf of the low-growing acanthus plant. Used at an early date by the Greeks for architectural scrolls on the capitals of the Corinthian column.

The wall in a room which has been given special design emphasis to attract attention from the adjacent walls.

- The main electrical ON-OFF switch near the A/C Condenser.

- A pattern or design not based on natural forms.

A regulatory organization which governs the design and specifications of highway bridges.

Signifies access that requires the removal of an access panel or similar removable obstruction.