BC Ch.8 Defintitions

Asbestos Cement Shingle

• Primarily composed of cement and asbestos fibers.

Asphalt Felt Siding

• Made by saturating dry felt with asphalt.

Balloon Frame Construction

• Vertical studs in exterior bearing walls extend the full height from sill to roof.

Battens in Siding

• Serve to cover joints between vertical strips of wood.

Bottom Plate

• Structural member laid on the subfloor where vertical studs are anchored.

Bridging Function

• Prevents movement from vertical axes between parallel-frame members in wooden structures.

Cantilevered Structure

• Characterized by an overhang supported from only one end.

Chamfering Purpose

• Retards ignition by cutting off corners of timber.

Chipboard Composition

• Made from wood chips glued together to form flat sheets.

Corrugated Metal Siding Hazards

• Poses an electrical hazard from stray wires or lightning.

Curtain Wall

• Type of wall that carries no load other than its own weight.

End Matched Lumber

• Features tongues and grooves at the ends for secure fitting.

Engineered Wood Usage

• Commonly used as laminated timbers modified from their natural state.

English Tudor Construction

• Resembles post and frame but actually uses a balloon frame design.

Finger Joints in Wood Construction

• Interlocking wood pieces glued together to create longer dimensional lumber.

Flitch Plate Girder

• Composite structure made of a steel plate or plywood sandwiched between two beams.

Glued Laminated Timber (Glulam)

• Formed by gluing together planks to create solid timber.

Header in Construction

• Used to create an opening by paralleling floor or roof beams.

Heavy Timber Construction

• Characterized by large-dimension combustible materials with noncombustible exterior walls.

Ridge Board

• Fastens the upper ends of rafters in roof construction.

Joist Definition

• A wooden beam that runs parallel to others and supports a floor or ceiling.

Legacy Construction

• Utilizes solid wood members instead of lightweight wood trusses and I-joists.

Log Cabin Structure

• Constructed using entire tree trunks for walls.

Rough vs. Planed Lumber

• Rough lumber has a sawn finish, while planed lumber has a smooth finish.

Sill Purpose

• Acts as the base of a wall, resting on and bolted to the foundation.

Soffit Description

• A false space above cabinets or under eaves, serving decorative and functional roles.

Sole Plate in Stud Wall

• The horizontal framing member at the base of the wall.

Spliced Timber

• Timber joined with metal connectors to effectively transfer loads.

Stringers in Stairs

• Support the risers and treads, forming the main structural element of stairs.

Stucco Composition

• Typically made from Portland cement.

Trimmer in Floor Construction

• Supports a header in floor openings, such as stairwells.

Trunnel Usage

• Used to pin together mortise and tenon joints.

Truss Frame Definition

• A wooden frame that utilizes truss members instead of solid beams.

Truss Void

• A space located between the top floor ceiling and the roof in truss systems.

Valley in Roofing

• The lower slope formed by the connection of two inclined planes of a roof.

Vermiculite Application

• Used as bulk insulation and an aggregate in insulating materials.

Vinyl Siding Fire Hazard

• Deforms and drips when exposed to fire, posing safety risks.

Wall-Bearing Building

• Load is carried entirely by the walls, providing structural support.

Wood Lath Purpose

• Provides a surface for plaster to adhere to in older buildings.

Wooden-Walled Building

• A building where load is carried by walls, typically with wooden interiors.