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**Pitch to Slope**: This converts pitch (e.g., 4/12) to slope.**Pitch to Angle**: This converts pitch (e.g., 10/12) to an angle in degrees.**Rise over Run to Angle**: This converts rise over run to an angle in degrees.**Interface Angle**: This computes the interface angle between two sloped surfaces.**Interface Angle from Rise over Run**: This computes the interface angle based on two rises and runs.**Trusses Needed for a Roof**: This computes the number of trusses needed for a roof based on the ridge length and truss spacing**Roof Section Area**: This computes the surface area of an irregular shaped section of a roof.**Gable Roof Geometrie**s: This computes the lengths and measurements for a gabled roof based on the ridge length, pitch, span and overhang.**Dormer Geometries**: This computes the measurements for a gable dormer based on the dimension of the dormer and main roof..**Hip Roof Geometries:**This the metrics associated with a hip roof based on the dimensions.**Double Hip Roof Geometries**: This compute the lengths of the dimensional lines where one hip roof intersects another such as in a dormer.**Pyramid Hip Roof Geometries**: This computes the lengths and dimensional lines of a pyramid roof.**Gambrel Pitch Angles**: This computes the pitch angles and rafter lengths in a gambrel roof bases on the span, total height, and height and width of the loft.**Gambrel Rafter Lengths**. This computes the upper and lower rafter lengths, attic width and total height under a gambrel roof based on the upper and lower pitch, span and loft height.**Rafter Length**: This computes the length of the rafters based on the span, pitch and overhang.**Corrugation Factor**: This computes the material length associated with a structural length using corrugated material.