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Thickness, slope angle, and overhang length of the roof. Image Removed
Thick Anchor635635ness: The  Image Added
Thickness: The thickness of the roof.Slo Anchor636636pe Angle:

Rise/Run: Specifies the angle of the in standard ratio format. For English units the ratio is X over 12 (X/12). For metric the ratio is X over 100(X/100).

Slope: Specifies the angle of the roof. The higher the angle, the steeper the roof slope. Image Removed . Adjusting this value will alter the Rise/Run.
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Note:This  This parameter changes the slope of the entire roof. To change the slope of one facet, use the the Edit Slope Angle tool tool.

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Overha Anchor637637ng: The Overhang: The distance the roof extends past the defined roof outline. Image Removed.
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From the Selection Info palette you will find the additional property Edge Cut. 

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Edge Cut: Provides two options: Plumb, and Square.

When set to plumb the edge will be perpendicular to the ground (vertical)

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When set to Square the edge will be perpendicular to the plane of the associated roof section.

Roof Components

The Roof Components properties allow for the setting of different Materials to each component of the roof. The components available are as Top, Bottom, Gable and Fascia Image Removed

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