I will be purchasing an Imagine Grand Design 2018 RB2600. The insulation is listed as, Floor R-30, Roof R-40 but the walls are listed as R-7. I was wondering if this is sufficient insulation for the t...
Realistically it's near impossible to have much more insulation. Some Have Refectix which add's a good deal of R value but only for heat infiltration. My advice is to get a second AC if it's available. That way you'll have no problem heating or cooling regardless of insulation.