AnsweredAssumed Answered

Calculating rooftop slope angle from DSM/DTM

Question asked by Owain_Kril on Apr 15, 2020
Latest reply on Sep 10, 2020 by bkausika

I'm new to ArcGIS so sorry if this seems trivial at all.
I'm trying to find the slope angle of roofs. I have the DSM and DTM of my area and then drawn polygons over each rooftop. I have used zonal statistics which has found the Standard deviation of the slope but i'm not sure how to convert this to a degree/percentage value. I also feel like there must be an easier way of doing this that i dont know about. 

 

My overall goal is trying to find suitable roofs to convert to a green roof. so if anyone knows of any completely different ways to get all the data and outputs id need for that then that would be amazing  .

 

Any help would be greatly appreciated,
Thanks.

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