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Laminated glass
A multiple light glazing with a sticky
plastic inner light that holds broken
pieces of glass together when the glass breaks.
Laps
Strips of roll roofing.
Lath
Strips of wood, wire mesh, or gypsum
board attached to studs and joists to form a
base for plaster to adhere to.
Leach field
See Seepage
field.
Ledger
In balloon framing, a horizontal framing
member attached to the wall studs
providing supports for 2nd-floor joists.
Ledger strips
Lengths of wood nailed along the bottom
edge of a girder to provide support
for joists.
Light
Each layer of glass making up a window
pane.
Limit control
A control that turns off the burners in a
furnace when circulating air reaches a
preset high temperature or in a boiler when water reaches a preset high
temperature
(forced hot water) or pressure reaches a preset high pressure (steam).
Lintel
A horizontal framing member that carries
the load above a window or door opening.
Live load
The weight of the home's occupants, the
furnishings of the home, and other
weight the structure must support.
Load A
light or appliance that uses electricity on a circuit.
Loose fill insulation
A loose insulating material
poured or blown into place between wall
studs and attic joists, made of fiberglass, rock wool, cellulose, or
vermiculite.
Louvered door
A door with plastic, wood, or cloth slats
in a frame.
Low voltage system
A lighting system featuring
boxes of relays, unusual switches, and
one or more switching panels.
Low water cut-off
A safety control on a boiler
that shuts off the burner when water levels
fall below the required amount for the system.
LP gas
Liquefied propane or petroleum gas used
as a fuel source. Can also be a mixture of
propane, butane, or iso-butane.
LPgas
Liquified propane or petroleum gas used
as a fuel source. |