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I-Beam:
A steel beam that resembles the letter I in cross section.
Ice Dam:
Condition formed at the lower roof edge by the thawing and re-freezing of melted snow on the overhang. Can force water up and under shingles, causing leaks.
Inspector:
Any person who examines any component of a building, through visual means and through normal user controls, without the use of mathematical sciences.
Installed:
Attached or connected such that the installed item requires tools for removal.
Insulating Board:
A building board made of compressed plant fibers, e.g., wood, cane, corn, stalks, dried and pressed to a specific thickness.
Insulation:
Any material used to reduce the transfer of heat, cold or sound.
Interior Trim:
The finish on the interior of a building; e.g., casing, molding, baseboard.
Interlocking Shingles:
Individual shingles that mechanically fasten to each other to provide wind resistance.
Inward:
Directed toward the interior.
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