Help with Grasshopper Honeybee

I’m trying to make rooms from these polysurfaces however in grasshopper it considers every wall a exterior wall I have looked for gaps and cannot find any thank you for any help.

problem room.3dm (573.6 KB)

This forum needs a Ladybug category. Please?

Hi Sebastian -

Please use https://discourse.ladybug.tools/ for questions related to the Ladybug Tools.
-wim

Plug-in categories are for plug-ins that are supported on this forum by their developers.
-wim