Karteikarten
Architecture - Chapter 1 - Wood
Karten in diesem Stapel (29)
- 1Book-matchedResult of resawing thick lumber into thinner boards, opening the two halves like a book, and gluing the boards together along the edge to create a panel with a mirrored grain pattern
- 2BurlIrregular grain pattern that results from an unusual growth on the tree
- 3Cathedral grainV-shaped grain pattern running the length of the board
- 4CheckSeparation of the wood fibers running with the grain that do not go through the whole cross-section
- occurs as a result of tension and stress caused by wood movement during the drying process - 5dimensional stabilityability of a section of wood to resist changes in volume at fluctuating moisture levels
- low dimensional stability produces expansion in humid environments and contraction in dry ones - 6early growth/late growthin regions of little climatic change, trees tend to grow at a fairly consistent rate and have little variation in texture
- in regions of seasonal climatic change, however, trees grow at different rates, depending on the season
- variations in growth contribute to the color and texture of the growth rings in the tree - 7figurepatterns on a wood surface produced by growth rings, rays, knots, and irregular grains
- descriptors include interlocked, curly, tiger, wavy, and fiddleback, among others - 8gum pocketexcessive accumulation of resin or gum in certain areas of the wood
- 9hardnessability of wood to resist indentation
- 10hardwoodwood from deciduous trees (which lose their leaves in the winter months)
- oak and walnut constitute 50% of all hardwood production - 11heartwoodharder, nonliving innermost layers of a tree
- it is generally darker, denser, more durable, and less permeable than the surrounding sapwood - 12Janka hardness testtest that measures the pounds of force required to drive a 0.444" (11 mm) -diameter steel ball to half its depth into a piece of wood
- 13moisture contentpercentage that represents a board's ratio of water weight to the weight of oven-dried wood
- 14plainsawnlumber cut with less than a 30-degree angle between the face of the board and the wood's growth ring
- 15plywoodlarge sheet of wood made up of several layers of veneer that are glued together so that the grain of each layer lies perpendicular to the grain of each of the previous layer
- 16pressure-treated lumberwood products that are treated with chemical preservatives to prevent decay brought on by fungi and to resist attack from insects and microorganisms
- 17quartersawnlumber cut with a 60- to 90-degree angle between the face of the board and the wood's growth rings
- 18riftsawnlumber to cut with a 30- to 60-degree angle between the face of the board and wood's growth rings
- 19sapwoodliving outer layers of a tree, between the outer bark and the thin formative layers of the cambium and phloem, on the one side, and the heartwood, on the other
- 20softwoodwood from coniferous (evergreen) trees
- 21splitseparation of wood fibers from one face through to the next
- 22straight grainwood fibers that run parallel to the axis of a piece of lumber
- 23stud2" x 4" and 2" x 6" dimension lumber used for load-bearing and stud walls
- 24warpbowing, cupping, and twisting distortion in lumber that occurs after it has been planed, usually during the drying process
- 25rough lumbersawed, trimmed, and edged lumber whose faces are rough and show marks
- 26surface (dressed) lumberrough lumber that has been smoothed by a surfacing machine
- 27worked lumbersurfaced lumber that has been matched, patterned, shiplapped, or any combination of these
- 28shop and factory lumbermillwork lumber for use in door jambs, moldings, and window frames
- 29yard (structural) lumberlumber used for house framing, concrete forms, and sheathing
Informationen
- Beschreibung
- Lightweight, strong, and durable, wood is an ideal construction material with uses that run the gamut from structure to interior finish. The two major classifications-softwood and hardwood-do not necessarily indicate relative hardness, softness, strength, or durability.
- Erstellt von
- Micah Blevins
- Aufrufe
- 2
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