The practice of installing blow-in, loose-fill insulation at a lower density than is recommended to meet a specified R-Value.
Fluid
Substance that flows and changes shape.
Fluid ounce
Fluid volume measure which equals 1/32 quart.
Fluid-applied elastomer
A liquid elastomeric material that cures to form a continuous waterproofing membrane.
Fluidics
Technological application of fluids to perform functions, such as controlling mechanisms using hydraulic pressure and flow. Fluid Mechanics Science governing the behavior of fluids.
Fluidized bed combustion (fbc)
A type of furnace or reactor in which fuel particles are combusted while suspended in a stream of hot gas.
Flume
(1) Narrow ravine with a stream of water running through it. (2) An artificial channel serving as a chute for carrying water to furnish power or to transport items.
Flume spout
An open spout design that is also referred to as a waterfall spout.
Fluorescence
Ability of a material to emit radiation, visible or invisible, upon receipt of certain stimulation such as ultra-violet rays or x-rays.
Fluorescent lamp
A high efficiency lamp utilizing an electric discharge through low pressure mercury vapor to produce ultraviolet (uv) energy. The uv excites phosphor materials applied as a thin layer on the inside of a glass tube which makes up the structure of the lamp. The phosphors transform the uv to visible light.
