“I don't see any roof vents on neither the 2 or 3 person versions of the Rothorn. Yet the 2012 Backpacker Gear Guide says the 2 person version has "near perfect" ventilation. I don't see how that's possible without roof vents? How are the 2 and 3 person Rothorn's vented to minimize interior cold-weather condensation? ”
The tent has no roof vents, The doors have two flaps one mesh and one solid fabric. You could zip the fabric flap down at the top leaving the mesh zipped for ventilation.