Cutting in a new roof vent

[Hetken1]

Hello all, Have spent the winter doing over my 2005 Lexington210 (rear door) inside is done and starting on the solar install. I want to install a new fan in the front area of the roof and would like to know where the framing is. Can not find any framing plan. Can anyone help out.
Ken

[HerveVR]

In those years, probably, roof was made on wooden «trusts» and frame with isolating wool.

If so, a stud finder could help.

Also looking at the roof at morning dew might show cues.

Good luck!

[cavie]

Look inside for a speaker or a light you can remove. You can also cut a hole in a closet ceiling. Patch is not critical. Flat return air grills work great.

[Hetken1]

Well I went for it and cut into the roof. The framing supports in the front section of the roof, at least, are front to rear of the RV, of which I had to cut one of the aluminum "rafters". One tricky part is that the center of the aluminum rafters are used a wire chases, so be careful.
All worked well.

[NoviBill]

Photos?