# Room/Wall Face Intersect

**URL:** <https://forum.dynamobim.com/t/room-wall-face-intersect/112689>\
**Category:** Revit\
**Tags:** roomboundaries\
**Created:** [October 14, 2025, 5:27am UTC](https://forum.dynamobim.com/t/room-wall-face-intersect/112689 "2025-10-14T05:27:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JakeBB](https://avatars.discourse-cdn.com/v4/letter/j/bc79bd/32.png) [@JakeBB](https://forum.dynamobim.com/u/JakeBB)\
**Post date:** [October 14, 2025, 5:27am UTC](https://forum.dynamobim.com/t/room-wall-face-intersect/112689/1 "2025-10-14T05:27:39Z")

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I am trying to paint wall surfaces that coordinate with room finishes. If I place four joined walls and place a room it is showing that not all of the faces intersect. Is there something that I am missing for how rooms interact with enclosing walls? Is there a different method I need to find those intersecting faces?

 ![Room Wall Intersect](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/d/2/d29f944288dda1bc1928a0b8b26aea5c406497a6.png)

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**Author:** ![sovitek](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/sovitek/32/116237_2.png) [@sovitek](https://forum.dynamobim.com/u/sovitek)\
**Post date:** [October 14, 2025, 5:29am UTC](https://forum.dynamobim.com/t/room-wall-face-intersect/112689/2 "2025-10-14T05:29:57Z")

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Hi @JakeBB try set does it intersect node to cross product…maybe 😉 or try some of these here from clockwork

 ![Skærmbillede 2025-10-14 073321](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/2/a/2adf9967e29a2a8e20e2aa82fc4602098c67c2ce.png)

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**Author:** ![hayet.sassi2](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/hayet.sassi2/32/199553_2.png) [@hayet.sassi2](https://forum.dynamobim.com/u/hayet.sassi2)\
**Post date:** [October 14, 2025, 10:30am UTC](https://forum.dynamobim.com/t/room-wall-face-intersect/112689/3 "2025-10-14T10:30:48Z")

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Hello, I’ve started the exercise, but I don’t have the custom Python node. Could you please share it in the conversation link?

 ![RoomWall Face Intersect_2025-10-14_12-28-03](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/a/4/a409d05e670b4e9d83058199d1a8aff9d00e542a.png)

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<div class="post-metadata">

**Author:** ![JakeBB](https://avatars.discourse-cdn.com/v4/letter/j/bc79bd/32.png) [@JakeBB](https://forum.dynamobim.com/u/JakeBB)\
**Post date:** [October 14, 2025, 10:37pm UTC](https://forum.dynamobim.com/t/room-wall-face-intersect/112689/4 "2025-10-14T22:37:49Z")

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Thanks! The python code is sourced from this post: [Paint Material Surface - #4 by Organon](https://forum.dynamobim.com/t/paint-material-surface/14026/4)