# Roof Systems

INSTRUCTION TYPE: Exploration\
INSTRUCTION TITLE: Examining Roof Systems and Properties\
CATEGORY: Structural Elements\
OBJECTIVE: Learn how roofs are designed by exploring geometry, pitch, materials, and structural components

PREREQUISITES:

* Understanding of wall and floor systems
* Basic 3D navigation skills

EXPERTISE LEVEL: Intermediate

PARAMETERS:

* Roof Outline: Perimeter shape of the roof
* Roof Pitch: Angle of roof surfaces
* Roof Materials: Layered construction of roof assemblies
* Roof Components: Structural elements like rafters and purlins

STEPS:

1. Switch to the Roof Calculation module using Option 1-2-5
2. Right-click on a Roof Surface in the Building Navigation panel
3. View the properties and current settings of the roof
4. Modify the roof outline:
   * Select the building outline using Option 3-1
   * Edit individual sides by clicking on them
5. Change the roof pitch:
   * Select a roof side or surface
   * Use Option 3-05 (or right-click and select "Properties")
   * Adjust the pitch value in the dialog and observe how it changes the roof form
6. Add or modify dormers:
   * Use Option 4-1 to add a new dormer
   * Use Option 4-3 to modify an existing dormer
7. Examine roof materials:
   * Right-click on a roof surface and select "Properties"
   * In the dialog, select the "Properties" tab
   * Review the layers that make up the roof assembly
   * Choose a different roof buildup from the available options
   * Modify layer thicknesses as needed
8. Explore roof structural components:
   * Switch to the Roof Design module using Option 1-2-6
   * Add rafters using Option 2-1-1 for distributed rafters
   * Add ridge beams or purlins using Option 2-5-1
   * Add plates (top wall plates) using Option 2-3-1
   * Modify any of these components using the right-click menu or Options 3-xx

EXPECTED RESULTS: You should understand how roofs are constructed with both covering materials and structural support elements, and be able to make basic modifications to roof geometry, pitch, and components.

COMMON VARIATIONS:

* Different roof styles (hip, gable, shed) will have different options
* Structural component arrangements may vary based on roof type

TROUBLESHOOTING:

* If roof geometry appears incorrect: Check for wall height inconsistencies
* If structural elements don't appear correctly: Verify roof surfaces are properly defined

FOLLOW-UP ACTIONS:

* Learn to create complex roof forms with multiple intersecting surfaces
* Explore automatic roof framing generation
* Understand how to create custom roof details

QUERY EXAMPLES: "How do I change the roof pitch?", "How can I add dormers to a roof?", "What structural components make up a roof system?"
