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18 Cards in this Set
- Front
- Back
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What are some advantages of light wood framing?
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flexible, easily constructed, economical
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What are some disadvantages of light wood framing?
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burns rapidly, decays in moisture, change is volume due to moisture, framing unattractive (must be covered)
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The ____ frame was a North American invention in 1833
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Balloon
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Smaller dimension wood members , simpler naild connections, requiring less skillled builders
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Light Wood Framing
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What are some disadvantages of balloon frame?
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full length studs difficult to handle, hang 2nd floor platform, no firestop.
(cost-less than timber) |
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: post WWI variation of the balloon frame, relies on short length framing members that are easier to produce, handle and erect.
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Platform Frame
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In a ______ frame, single story height wall studs span only b/w floor platforms.
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Platform
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In a platform frame, parallel nominal 2 inch members are spaced at ___
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16" or 24"
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sections of wall are assembled lying down on the floor platform, and then are tilted into place.
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Ground Floor Walls
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Wall sheathing may be applied before the walls are stood up, or after the frame is erected
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TRUE
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In the window rough opening the header is supported by two ______ at either end
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jack studs
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Framing on the second floor platform and walls is much different than the ground floor (T/F)
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fasle, its very similar
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(In the second floor platform) B/c of their relatively thin webs, I-joist may require ______ or _____ made of short lengths of solid lumber where loads bear from above.
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Web stiffeners or squash blocks
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When the lower ends of the rafters are not tied by ceiling joist, a _____ is required to prevent the ridge from saggin and the rafters from pushing outward on the topes of the wall
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structural ridge beam
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A knowledgeabe framer can lay out all cuts on a sloped rafter with nothing more than a traditional framing square and pencil. (T/F)
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True
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______ close to the upper ends of the rafters, resist wind uplift forces.
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Collar ties
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______ close to the lower ends of the rafters, resist the rafter horizontal spreading forces that could cause the walls to spread outward
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Ceiling Joists
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Where ceiling joists tie the lower rafer ends _____ are nonstructural, and serve only to align the rafters and provide nailing for the roof sheathing
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Ridge Boards
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