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Glossary of Home Building Terms



laminated shingles. Shingles that have added dimensionality because of extra layers or tabs, giving a shake-like appearance; a.k.a. architectural shingles, three-dimensional shingles

laminating. Bonding together two or more layers of materials

landing. A platform between flights of stairs or at the termination of a flight of stairs; ften used when stairs change direction; normally no less than 3 ft. X 3 ft. square

lap. To cover the surface of one shingle or roll with another

lap cement. An asphalt-based cement used to adhere overlapping plies of roll roofing

latch. A beveled metal tongue operated by a spring-loaded knob or lever; the tongue's bevel lets you close the door and engage the locking mechanism, if any, without using a key

lateral (electric, gas, telephone, sewer and water). The underground trench and related services (i.e., electric, gas, telephone, sewer and water lines) that will be buried within the trench

lath. A building material of narrow wood, metal, gypsum, or insulating board that is fastened to the frame of a building to act as a base for plaster, shingles, or tiles

lattice. An open framework of criss-crossed wood or metal strips that form regular, patterned spaces

ledger (for a structural floor). The wooden perimeter frame lumber member that bolts onto the face of a foundation wall and supports the wood structural floor

ledger strip. A strip of lumber nailed along the bottom of the side of a girder on which joists rest

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

let-in brace. Nominal one-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

level. Perfectly horizontal; also, a tool used to determine level

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

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

light. (1) Space in a window sash for a single pane of glass; (2) a pane of glass

limit switch. A safety control that automatically shuts off a furnace if it gets too hot; many also control blower cycles

lineal foot. A unit of measure for lumber equal to one 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)

lintel. A horizontal structural member that supports the load over an opening such as a door or window

load bearing wall. Includes all exterior walls and any interior wall that is aligned above a support beam or girder; normally, any wall that has a double horizontal top plate

loan. The amount to be borrowed

loan to value ratio. (LTV) The ratio of the loan amount to the property valuation and expressed as a percentage (e.g. if a borrower is seeking a loan of $200,000 on a property worth $400,000, it has a 50% loan to value ratio; if the loan were $300,000, the LTV would be 75%); the higher the loan to value, the greater the lender's perceived risk; loans above normal lending LTV ratios may require additional security

lookout. A short wood bracket or cantilever that supports an overhang portion of a roof

louver. A vented opening into the home that has a series of horizontal slats and arranged to permit ventilation but to exclude rain, snow, light, insects, or other living creatures

low-slope application. Method of installing asphalt shingles on roof slopes between two and four inches per foot

lumber. Lumber is the product of the sawmill and planing mill not further manufactured other than by sawing, resawing, and passing lengthwise through a standard planing machine, crosscutting to length, and matching

lumber, boards. Yard lumber less than two inches thick and two or more inches wide

lumber, dimension. Yard lumber from two inches to, but not including, five inches thick, and two or more inches wide; includes joists, rafters, studs, plank, and small timbers

lumber, dressed size. The dimension of lumber after shrinking from green dimension and after machining to size or pattern

lumber, matched. Lumber that is dressed and shaped on one edge in a grooved pattern and on the other in a tongued pattern

lumber, shiplap. Lumber that is edge-dressed to make a close rabbeted or lapped joint

lumber, timbers. Lumber which is five or more inches in its smallest dimension; includes beams, stringers, posts, caps, sills, girders, and purlins

lumber, yard. Lumber of those grades, sizes, and patterns which are generally intended for ordinary construction, such as framework and rough coverage of houses

lumens. Unit of measure for total light output; the amount of light falling on a surface of one square foot

 


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