Title: Vocabulary Review
Course: HET 290 Building Insulation > Section: HET 290 Building Insulation

Vocabulary Review

Terms

Term | Definitions
Blown in insulation | Insulation product composed of loose fibers or fiber pellets that are blown into building cavities or attics using special pneumatic equipment.
Cellulase | An enzyme complex, produced by fungi and bacteria, capable of decomposing cellulose into small fragments, primarily glucose.
Cellulose insulation | Type of insulation composed of waste newspaper, cardboard, or other forms of waste paper.
Coefficient of heat trasmission | Value that describes the ability of a material to conduct heat. The number of Btu that flow through 1 square foot of material, in one hour. It is the reciprocal of the R-Value (U-Value = 1/R-Value ...
Fiberglass insulation | Type of insulation, composed of small diameter pink, yellow, or white glass fibers, formed into blankets or batts, or used in loose-fill and blown-in applications.
Foam (insulation) | A high R-value insulation product usually made from urethane that can be injected into wall cavities, or sprayed onto roofs or floors, where it expands and sets quickly.
Foam Board | Plastic foam insulation product, pressed or extruded into board-like forms, used as sheathing and insulation for interior basement or crawl space walls or beneath a basement slab; can also be used ...
Foam core panels | A type of structural, insulated product with foam insulation contained between two facings of drywall, or structural wood composition boards such as plywood, waferboard, and oriented strand board.
Loose fill insulation | Insulation made from rockwool fibers, fiberglass, cellulose fiber, vermiculite or perlite minerals, and composed of loose fibers or granules can be applied by pouring directly from the bag or with ...
R-Value | Measure of the capacity of a material to resist heat transfer. This number is the reciprocal of the conductivity of a material (U-Value). The larger the number, the greater its insulating properti ...
Rigid insulation board | Insulation product made of a fibrous material or plastic foams, pressed, or extruded into board-like forms. It provides thermal and acoustical insulation strength with low weight, and coverage wit ...
Rock wool | Type of insulation made from virgin basalt, an igneous rock, and spun into loose fill or a batt. It is fire resistant and helps with soundproofing.
U-Value | The reciprocal of R-Value. The lower the number, the greater the heat transfer resistance (insulating) characteristics of the material.