Lesson 4: Elevation Drawings in Construction

Introduction

• Presenter: Tom Stevenson
• Series: Understanding Construction Drawings
• Scope: Learning to read, review, and understand construction drawings

Elevation Drawings

• Definition: Vertical views of the building
• Types: Front, rear, left, and right views

Key Components

• Site Plan Review: Building orientation (North, South, East, West)
• Elevation Drawing Details: Height and width of building faces
• Orthographic Drawings: Flat, straight-on views

Elements in Elevation Drawings

• Dimensions and Extensions: Key vertical and horizontal dimensions, projection of features (e.g., roof)
• Material Indicators: Brick work, roofing materials, window types
• Siding Details: Brick veneer, wooden frames, and decorative elements
• Functionality Markings: Hinged windows, fixed windows, dummy dormers

Practical Applications

• Exterior Elevations: Showcase building aesthetics and functionalities
• Interior Elevations: Useful for detailed areas like kitchens with 3D models and orthographic views

Common Symbols and Abbreviations

• Dimensions: Use of metric and imperial systems
• Extension lines, Leader Lines, and Projection Marks: Describe the layout and depth
• Abbreviations: FG (Fixed Glass), DO (Ditto, same as), RWL (Rainwater Leader)
• Slope Ratios: Important for framing and construction purposes

Case Study: Doncaster Model

• House Example: Front elevation detailed description
• Fake Dormers: Aesthetic additions not functional
• Roof Slopes: Different slope ratios used in construction (e.g., 10.5/12, 11.9/12)

Practical Tips

• Annotation of Drawings: Ensure to check all notes and legends for comprehensive understanding
• Construction Notes: Look for keys and symbols for better clarity
• Projection and Squares: Tools are essential for making precise measurements

Visualizing Construction

• Comparing Drawings with Reality: Importance of visual aids like images
• Elevation Flipping: Method to ensure consistency and detect drawing errors
• Window and Door Placement: Importance in load-bearing and design

Additional Notes

• Building Codes and Local Regulations: Adjustments needed based on location for elements like footings and frost lines
• Architectural Controls: Municipal requirements for aesthetic enhancements
• Projection and Ratios: Maintaining the aesthetic balance and structural integrity

Summary

• Next Steps: Future lessons on different drawing types (floor plans, detailed drawings)
• Resources: Book recommendation - "Understanding Construction Drawings for Housing and Small Buildings"
• Engagement: Encouragement to subscribe and comment for more personalized help or video ideas

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