An insulation product composed of loose fibers or fiber pellets that are blown into building cavities or attics using special pneumatic equipment.
Blown oil
Increased viscosity vegetable oil, saturated with air.
Blown-in insulation
Insulation that is inserted into walls or other areas by being "blown in". Commonly used in attic floors or other areas that are inaccessible for normal installation, it can also be pumped into wall cavities through small openings in the sheathing.
Blown-out water closet
A water closet bowl having a non-siphoning trapway at the rear of the bowl, and an integral flushing rim and jet.
Blowpipe
Soldering or brazing torch used in jewelry making or other work with fine joints because of its ability to be accurately directed due to its small flame.
Blowtorch
Torch used for soldering, activated by pressurized fuel and atmospheric air to generate its flame.
Blue board
Water-resistant drywall which is commonly used in bathrooms. Blue paper covers it, giving it its name.
Blue lead
Rust preventative made of lead sulfide and carbon.
Blue sky laws
State statutes that protect the public against securities frauds of real estate companies. These include regulations over the licensing of brokers, registrations, new securities and formal approvals by applicable government agencies.
