IAQ: Indoor air quality.

ICC: International Code Council

identify: to notice and report.

immediate cost: estimated cost of remedying an existing safety hazard, or repairing a system or component that will likely fail within a year.

imminent danger: a condition which could cause serious or life-threatening injury or death.

indicator compounds: Chemical compounds, such as carbon dioxide, whose presence at certain concentrations may be used to estimate certain building conditions (e.g., airflow, presence of sources).

individual rung ladders: a type of fixed ladder that has rungs individually attached to a building or structure.

infestation: the presence of insects, rats, vermin or other pests.

infill: area of the railing system bounded by the railing posts, cap, rail and the deck.

infiltration: the uncontrolled inward air leakage into a building.

inspect: to examine readily accessible systems and components safely, using normal operating controls, and accessing readily accessible areas, in accordance with these Standards of Practice.

inspected property: the readily accessible areas of the buildings, site, items, components and systems included in the inspection.

inspection: the process of an inspector collecting information through visual observation during a walk-through survey of the subject property, conducting research about the property, and then generating a meaningful report about the condition of the property based on the observations made and research conducted by the inspector.  A commercial inspection requires the inspector to make observations, conduct research, and report findings.

inspector: one who performs the commercial property inspection.

installed: attached or connected such that the installed item requires a tool for removal.

InterNACHI: International Association of Certified Home Inspectors

internal drainage: A drainage system on a low-slope roof where water flows from the high points, usually the edge areas, to a built-in drainage system that leads down through the interior of the building.

interview: to discuss with those who have knowledge about the subject property.

intrusive:

IPM: Integrated pest management.

IR: infrared

joist: The purpose of the joist is to provide a nailing and support system for the floor sheathing and for the floor itself. The joist supports the live and dead loads placed on the floor assembly. Attic or ceiling joists are used to provide floor support in attic spaces, and also help prevent the roof rafters from collapsing downward and pushing outward.

key box: a lockable device which permits the fire department to access the building in an emergency.

labeled: devices, equipment or materials to which have been affixed a label, seal, symbol or other identifying mark of product evaluation.

ladder cage: a means of enclosure that completely encompasses a portion of the climbing space of a fixed ladder and is permanently attached to the side rails. It is also referred to as a cage guard or basket guard.

lap seam: Two overlapping membranes that meet and are seamed, sealed or bonded in some way.

lavatory: a sink or wash basin.

ledger: dimensional lumber attached to the building framing and used for supporting the section of a deck adjacent to the building.

length of climb: the total distance between the start and endpoints of a fixed ladder, including any breaks that exist between multiple ladder installations.

let-in brace: Nominal 1-inch-thick boards applied diagonally into notched studs.

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