© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting: Unit 1 Slide 1 Unit 1 CADD Part III

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 2 Construction Terms Footing  Poured concrete base upon which the foundation wall rests. Sheathing  The rough boarding or covering over the framing of a house. Soleplate  The horizontal member of a frame wall

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 3 Construction Terms Grade beam  A horizontal member that is between two supporting piers at or below grade and that supports a wall or a structure above. Gable  The triangular end of a gable-roofed house. Balloon frame  A type of wood framing in which the studs extend from sill to eaves without interruption.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 4 Construction Terms Batting  A type of insulation designed to be installed between framing members. Specifications  The written instructions that accompany a set of working drawings.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 5 Construction Terms Water closet  A toilet. Built-up roof  A roofing composed of layers of felt impregnated with pitch, coal tar, or asphalt.  The top is finished with crushed stone or minerals.  It is used on flat or low-pitched roofs.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 6 Construction Terms Casement window  A window with one or two sashes that hinge on their sides.  They may open either in or out. Web  The member between the flanges of a steel beam, or the vertical and diagonal members between the top and bottom chords of a truss or bar joist.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 7 Construction Terms Casing  The trim around a window or door opening. Wythe  Pertaining to a single-width masonry wall. Wainscot  The surfacing on the lower part of an interior wall that is finished differently from the remainder of the wall.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 8 Construction Terms Cavity wall  A masonry wall having a 2" air space between brick wythes. Rafter  A roof structural member running from the wall plate to the ridge.  There are jack, hip, valley, and common rafters.  The structural members of a flat roof are usually called roof joists.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 9 Construction Terms Valley rafter  The diagonal rafter at the intersection of two intersecting, sloping roofs. Ridge  The top edge of a roof where two slopes meet. Ridgeboard  The highest horizontal member in a gable

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 10 Construction Terms Chord  The lower horizontal member of a truss. Run  The horizontal distance of a flight of stairs, or the horizontal distance from the outer wall to the ridge of a roof. Rise  The vertical height of a roof or stairs.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 11 Construction Terms Pitch  The slope of a roof, usually expressed as a ratio. Plywood  A relatively thin building material made by gluing layers of wood together. Post-and-beam construction  A type of building frame in which roof and floor beams rest directly over wall posts.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 12 Construction Terms Column  A vertical supporting member. Concrete masonry unit (C.M. U.)  A concrete block extruded from cement, aggregate, and water Plumb  Said of an object when it is in true vertical position as determined by a plumb bob or a vertical level.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 13 Construction Terms Coping  A cap or top course of masonry on a wall to prevent moisture penetration. Cornice  The molded projection of the roof overhang at the top of a wall. Nominal size  The size of lumber before dressing, rather than its actual size.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 14 Construction Terms Crawl space  The shallow space below the floor of a house built above the ground.  Generally, it is surrounded with the foundation wall. Nonbearing wall  A wall supporting no load other than its own weight.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 15 Construction Terms Bearing wall  A wall that supports a weight above in addition to its own weight. Curtain wall  An exterior wall that provides no structural support. On-center  A method of indicating the spacing between framing members by stating the measurement from the center of one member to the center of the succeeding one.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 16 Construction Terms Partition  A wall that divides areas within a building. Blocking  Small wood pieces in wood framing to anchor or support other major members. Flitch beam  A built-up beam formed by a metal plate sandwiched between two wood members and bolted together for additional length.

© 2006 ITT Educational Services Inc. CD230 Architectural Design & Drafting II: Unit 1 Slide 17 Construction Terms Floor joist  Structural member of a floor. King post  The center upright strut in a truss. Moisture barrier  A sheet material that retards moisture penetration into walls, floors, ceilings, and so on.