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Level Payment Mortgage

A mortgage with identical monthly payments over the life of the loan.

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Leech field

A method used to treat/dispose of sewage in rural areas not accessible to a municipal sewer system. Sewage is permitted to be filtered and eventually discharged into a section of the lot called a leech field.

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Level-

True horizontal. Also a tool used to determine level.

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Let-in brace

- Nominal 1 inch-thick boards applied into notched studs diagonally. Also, an "L" shaped, long (@ 10') metal strap that are installed by the framer at the rough stage to give support to an exterior wall or wall corner.

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Lift-Slab Construction

A method of building site-cast concrete buildings by casting all the floor and roof slabs in a stack on the ground and lifting them up the columns with a series of jacks and welding them in place.

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Life Cycle Thinking

An informal thought process for considering all of a product’s impacts from cradle to grave https://healthymaterialslab.org/tool-guides/hml-resources

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Leveling Plate

A steel plate set in grout on top of a concrete foundation to create a level bearing surface for the base of a steel column.

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Light

Space in a window sash for a single pane of glass. Also, a pane of glass. A pane of glass.

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Lien

An encumbrance that usually makes real or personal property the security for payment of a debt or discharge of an obligation.

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Life-Cycle Costing

Selection of the most economical material and systems based on initial costs, maintenance costs and operating costs for the life of the building.

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Lineal foot

- A unit of measure for lumber equal to 1 inch thick by 12 inches wide by 12 inches long. Examples: 1" x 12" x 16' = 16 board feet, 2" x 12" x 16' = 32 board feet.

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Lighting Fixture

See luminaire.

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Lighting Outlet

An electrical outlet to which a light fixture is connected.

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Lightweight Steel Framing

Structural steel framing members made from cold-rolled lightweight sheet steel.

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Lignin

An amorphous substance that penetrates and surrounds the cellulose strands in wood, binding them together.

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Limiting Height

Maximum height for design and construction of a partition or wall without exceeding the structural capacity or allowable deflection under given design loads.

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Light-Gauge Steel Structural Members

Load-bearing members formed from light-gauge steel rolled into structural shapes.

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Lime

A white to gray powder produced by burning limestone, marble, coral, or shells.

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Limit switch

A safety control that automatically shuts off a furnace if it gets too hot. Most also control blower cycles.