Exterior Elevations

1
Exterior Elevations

• Elevation Views represent the two-dimensional
  views of each side of a house.
• There are six orthographic views of a house but
  architects only use four views. The four views
  are the Front, Rear, Right and Left.
• When creating the elevations using conventional
  drafting equipment the architect will project
  each view from the floor plan.

2
Exterior Elevations

• Elevations can also be created by using an
  architects scale and not projecting from the
  floor plan.
• On 2D CAD programs the elevations can be
  projected from the floor plan and then rotated
  into position.

3
Exterior Elevations
4
Auxiliary Elevations

• When features of a house do not line up with one
  of the principal orthographic views then it is
  necessary to create an auxiliary projection.

5
Roof Terminology

• Pitch is the ratio between the horizontal run and
  the vertical rise of the roof.
• Run is the horizontal distance and is always
  expressed in units of 12.

RUN(12)
RISE
SLOPE DIAGRAM
6
Roof Terminology

• Slope Rise/Run
• Pitch Rise/Span
• Span is the Run doubled.
• Place the Rise over the Span (24)
• Span is the distance between the supports of the
  roof.
• If the Run is 12 then the Span is 24
• However, architects express the Pitch of a roof
  as Rise/Run with Run always 12 units.

7
Roof Terminology

• The common term is to list the roof slope as a
  5/12 Pitch. The symbol is also referred to as a
  slope diagram.

8
Roof Terminology

• The angle of a roof pitch is the inverse tangent
  of the slope. Slope is the Rise over the Run.
• If the Slope is
• 8/12 then 8/12.66
• -Tan .66 33.69 degrees.

8
12
9
Elevation Symbols

• Window Parts (Double Hung)

10
Elevation Symbols

• Windows

11
Elevation Symbols

• Tags can be placed on elevation views of windows
  to identify them in the Window Schedule

12
Interior Elevations

• Interior Elevations are used to show the detail
  of the interior walls.

13
Coding System
14
Completed Interior Elevation
15
Elevation Dimensioning

• Show the vertical distances from a datum
• The datum line is a reference that remains
  constant. Sea level is commonly used as the
  datum however any line can be used as a datum
  reference. For example, the grade can be used as
  a datum.
• Elevation dimensions show the distance from the
  floor line to the ceiling and roof ridge and eave
  lines, and to the top of chimneys, doors, and
  windows.
• Distances below grade are shown as dashed lines.

16
Elevation Dimensioning

• Check your book, pages 317 to 318 for correct
  dimensioning techniques for an elevation.