Glossary of Terms

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Term Definition

An unenclosed exit access component that defines and provides a path of egress travel. 


A method of proportioning structural members, such that elastically computed stresses produced in the members by nominal loads do not exceed specified allowable stresses (also called "working stress design"). 


Any construction or renovation to an existing structure other than repair or addition. 

Bookshelf girt

A girt with its wide faces horizontally oriented thus enabling it to effectively function as a shelf when left exposed.


A site, building, facility or portion thereof that complies with Chapter 11. of the IBC2012


An extra building product.


An approved, third-party organization that is independent of the grading and inspection agencies, and the lumber mills, and that initially accredits and subsequently monitors, on a continuing basis, the competency and performance of a grading or inspection agency related to carrying out specific tasks. 


Ammoniacal Copper Zinc Arsenate - a preservative treatment normally used on difficult to treat wood specie such as Douglas Fir.


An extension or increase in floor area or height of a building.


Veneer secured and supported through the adhesion of an approved bonding material applied to an approved backing. 


A structure designed and constructed to house farm implements, hay, grain, poultry, livestock or other horticultural products. This structure shall not be a place of human habitation or a place of employment where agricultural products are processed, treated or packaged, nor shall it be a place used by the public

Air Duct

Pipes that carry warm air and cold air to rooms and back to furnace or air conditioning system.

Anchored seam fastener

A seam fastener that penetrates the underlying structural framing a sufficient amount so as to significantly affect the shear characteristics of the connection.


A paved area, such as the juncture of a driveway with the street or with a garage entrance.


The area included within surrounding exterior walls (or exterior walls and fire walls) exclusive of vent shafts and courts. Areas of the building not provided with surrounding walls shall be included in the building area if such areas are included within the horizontal projection of the roof or floor above. 

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