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BOCA
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Building Officials and Code Administration
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Backfill
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Earth or earthen material used to fill around a foundation or the act of doing so.
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Backer Rod
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A flexible, compressible strip of plastic foam inserted into a joint to limit the depth to which the sealant can penetrate.
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Balcony
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A second floor deck (exterior) or extension of the second floor (interior) that is supported by cantilevering the floor or running angled braces.
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Balloon Framing
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A continuously framed wall from top of subfloor to underside of rafters or outlookers.
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BDL
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Bundle
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Beam
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A structural member used to support a load(s) between two points.
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Bearing Wall
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A wall that is used to support floor and/or roof loads.
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Black Log
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Color unstained logs will reach after exposure to sun and rain. This can be bleached out.
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Bleeding
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A migration of a liquid to the surface of a component or into/onto an adjacent material.
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Blocking
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Pieces of wood inserted tightly between joists, studs or rafters in a building frame to help stabilize the structure, inhibit the passage of fire, provide a nailing surface or retain insulation.
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Blue Stain
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Blue colored stripe in wood formed by a fungus which enters a freshly cut log and feeds off the sugars in the sap wood. This does not affect the strength or durability of the wood.
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Bolt
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A fastener of a cylindrical metal body with a head at one end and threaded on the other. Intended to be inserted through holes in adjoining material and closed with a nut.
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Bracing
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Diagonal members, either temporary or permanent, installed to stabilize a structure against lateral loads.
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Bridging
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Bracing or blocking installed between joists (wood or steel) at the midpoint to stabilize them from buckling or twisting. In some cases used to permit adjacent joists to share loads.
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Building Code
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A set of legal restrictions intended to ensure a minimum standard of health and safety in a building.
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Bumpout
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A wall that extends out further than the rest of the wall.
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Bumpup
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A rise in the roofline to accommodate a window or just to dress up and elevation.
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Bundle
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Logs banded together ready for delivery
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Butt End
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The full round end of the log representing the diameter of the log.
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Butt-n-Pass
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Corner style where each course passes over the one below it.
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Butyl
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Type of non-curing and non-skinning sealant made from butylene. Usually used for internal applications.
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