Re: Azdel vs Vacuem bonded fiberglass

Not sure I understand your question as a trailer can have both a fiberglass exterior with Azdel sheeting behind it, as did my own Coachmen Freedom Express. Where the issue blurs is when you read the word Azdel and assume it means all walls, which is usually not the case at all. My own FE had Azdel sidewalls but the rear and front walls were conventional wood behind the fiberglass exterior.