# Change "Defines Roof Slope"

**URL:** <https://forum.dynamobim.com/t/change-defines-roof-slope/113894>\
**Category:** Revit\
**Tags:** revit, python, dynamo\
**Created:** [February 5, 2026, 6:17am UTC](https://forum.dynamobim.com/t/change-defines-roof-slope/113894 "2026-02-05T06:17:03Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![john\_pierson](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/john_pierson/32/191977_2.png) [@john\_pierson](https://forum.dynamobim.com/u/john_pierson)\
**Post date:** [February 5, 2026, 8:50pm UTC](https://forum.dynamobim.com/t/change-defines-roof-slope/113894/2 "2026-02-05T20:50:33Z")

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Doable by getting the underlying model curve of the roof. Note: You will need to figure out which curve is which.

![20250205-roofModelCurve'](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/2/6/269dcc2d8ada7994ed1927663ce18d6a639cf5ea.gif)

and the DYN: (uses rhythm package):  
[setRoofSlope.dyn](https://forum.dynamobim.com/uploads/short-url/s9cnQSn0EvkV7mQy4okV7nBTLjl.dyn) (16.0 KB)

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