322 Appendix 2
Expected Useful Life (EUL) The average amount of time in years that an item, component or sys-
tem is estimated to function when installed new and assuming routine maintenance is practiced.
Exploded View A pictorial view of a device in a state of disassembly, showing the appearance and
interrelationship of parts.
Extension Line A line used to visually connect the ends of a dimension line to the relevant feature
on the part. Extension lines are solid and are drawn perpendicular to the dimension line.
External Thread A thread on the outside of a member. Example: a thread of a bolt.
Façade The exterior covering of a structure.
Face of Stud (F.O.S.) Outside surface of the stud. Term used most often in dimensioning or as a
point of reference.
Fascia A horizontal member located at the edge of a roof overhang.
Facility All or any portion of buildings, structures, site improvements, complexes, equipment, roads,
walks, passageways, parking lots, or other real or personal property located on a site.
Falsework Temporary supports of timber or steel sometimes required in the erection of difficult or
important structures.
Felt A tar-impregnated paper used for water protection under roofing and siding materials. Some-
times used under concrete slabs for moisture resistance.
Fillet A concave internal corner in a metal component, usually a casting.
Final Completion Term denoting that the work has been completed in accordance with the terms
and conditions of the contract documents.
Final Inspection Final review of the project by the architect to determine final completion, prior to is-
suance of the final certificate for payment.
Final Payment Is the payment made by the owner to the contractor, upon issuance by the architect
of the final certificate for payment, of the entire unpaid balance of the contract sum as adjusted by change
orders.
Finish Grade The soil elevation in its final state upon completion of construction.
Finish Marks These are marks used to indicate the degree of smoothness of finish to be achieved
on surfaces to be machined.
Fire Barrier A continuous membrane such as a wall, ceiling, or floor assembly that is designed and
constructed to a specified fire-resistant rating to hinder the spread of fire and smoke. This resistant rating
is based on a time factor. Only fire-rated doors may be used in these barriers.
Fire Compartment of Fire Zone An enclosed space in a building that is separated from all other
parts of the building by the construction of fire separations having fire resistance ratings.
Fire Department Records These are records maintained by or in the possession of the local fire de-
partment in the area in which the subject property is located.
Fire Door A door used between different types of construction that has been rated as being able to
withstand fire for a certain amount of time.
Fire Draft Stop A member of varying materials placed in walls, floors, and ceilings to prevent a rapid
spread of fire.
Fire Resistance Rating Sometimes called fire rating, fire resistance classification, or hourly rating.
A term defined in building codes, usually based on fire endurance required. Fire resistance ratings are as-
signed by building codes for various types of construction and occupancies, and are usually given in half
hour increments.
Fire-stop Blocking placed between studs or other structural members to resist the spread of fire.