Rev. Date: 12/27/17 Page 48
MODEL #1300/2300
GLOSSARY
BRIDGING Tendency of insulation to cling in the hopper forming an air pocket above the
airlock. This hinders the normal feeding process of the machine.
CFM (Cubic feet per minute). A measurement of volume or quantity of air
flowing at a certain rate, or air moving capability, of a blower. It is the
volume of air moved per minute. Higher volume provides increased
coverage and velocity of insulation as it leaves the hose.
CHECK VALVE An apparatus that allows air to flow in one direction only. When mounted on
the outlet of the blower, it protects the blower from insulation contamination
through the air hose when using one blower. When the blower stops, the
valve closes.
COMMERCIAL The application of insulation with adhesive to a surface which will remain
exposed. The application must therefore be impacted in a smooth, uniform
manner.
COVERAGE Refers to the amount of insulation coverage, usually measured in square
feet, according to the R-value desired. This information is given on the
insulation package.
NEW CONSTRUCTION The spray application of insulation with water or adhesive into an exposed
wall cavity to later be covered with drywall sheathing, etc.
PSI (Pounds of pressure per square inch). The force exerted on a surface by
air/liquid. High-pressure blowers push the insulation through the hose.
Higher pressure provides less hose plugging and increased compaction in
side wall.
PRODUCTION RATE Pounds of insulation blown per hour.
RPM (Revolutions per minute). Speed at which the shaft of a rotating device (i.e.
blower fan, agitator) is moving.
R-VALUE Resistance value. A precise measurement of the insulation's resistance to
heat transfer. The higher the resistance value, the slower the heat will
transfer through the insulating material.
RETRO-SIDEWALL This refers to the installation of insulation into an unexposed wall cavity.
Insulation is usually installed through holes drilled into the exterior siding.
SETTLED DENSITY The point at which the insulation will not continue to settle further. Any
insulation blown will have a certain amount of progressive settling that
occurs after a period of time. Following the insulation manufacturers
recommendations for bag rate coverage will provide useful information to
accommodate for settling.
SETTLING Compression or compaction of insulation fibers caused by the weight of the
material, vibration of structure, temperature, and humidity cycles.
SPRAY ON
WALL CAVITY SPRAY