I'm trying to model my house as a way of learning Blender. I'm having a problem filling in a small hole after following a tutorial about roofs.
It's best demonstrated with a video, but basically I want the extruded edge to 'collide' with the perpendicular edge but no matter what I do, it doesn't seem to snap to the edge it collides with. I'm always left with two unrelated planes which also means I can't make the small trianglar area at the top into it's own face.
Hopefully this question makes sense once you've seen me extruding the roof edge towards the house:
Sorry for the youtube link but it seems this StackExchange site doesn't like large GIFs, APNGs or anything else I've tried.