We bought a new to us 4x8 teardrop that had no roof vent. The side doors have sliding windows that allow for some air movement by cross ventilation. After buying this teardrop I realized the importance of having a roof vent whether it was powered or not for air movement..
I inquired at my local RV shop on the cost of having a roof vent installed. They told me that without knowing what or where the cross members and electrical runs where that they'd need to remove the inner ceiling panel. They gave me a rough estimate of 6 hours labor for the install coming close to $1000 at the high end. The same cost would apply if I chose to go with side wall vents..
I haven't actually used this teardrop yet since I've been working to upgrade it for shore power and paint it so I can't tell on what conditions I can expect. I had thought about leaving the side windows cracked and using a small fan to help circulate the air. Reading about roof vents here that others have commented on, it seems to be much needed for comfort..
Do any others have any simple solutions for improving air movement in my case..? I'd love to add a roof vent but see it as maybe becoming a major problem to get installed..