Problem triming

[perk]

I am having a problem triming this roof. I have checked the entity info and this is all on layer 0. I unhid all and I even turned all my layers on, But when I try to trim this I loose the whole face.I have tried to redraw and still nothing. Does anyone have a suggestion?

Thanks

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[sorgesu]

can't tell from just the image. Can you post the skp so we can examine it?

Funny though, it looks like it doesn't have an edge. Did you hide the edge?

Try also selecting the surface and the bounding edges and do an intersect with model.

[Gaieus]

Just to make sure, (besides Susan says) did you import the model (or any part) from some CAD programme?

And yeah, skippy, please...

[perk]

I figured it out. The whole thing was drawn incorrectly I found many lines not connected and lines drawn on top of lines it was a big mess but I isolated the roof and moved it into a new SU file which made it easier to isolate the problem

Thanks anyway