Weather Shield + is just Coachman's notice that they build their recreation vehicles for four season use. As I said in your other thread on this topic, Coachman Their lack of specifics I think is because of all the variables and issues if freeze damage happened and you held Jayco liable. Variables like length of time temperatures remain very low, wind speed, etc. can greatly influence your RV's ability to handle the cold. In the
2015 brochure, they do say, "
In the summer of 2014, the insulation in the Chaparral was put to the test at the state-of-the-art Dometic extreme temperature chamber. At 0°, no section of the interior got colder than 63° while in the hot test (110°) the majority of the unit was around 75°." (pg 13) No other details as to length of time or other variables. The sun's radiation and wind speed can greatly effect heat loss or gain, I'd assume in a big insulated chamber you can park a fifth wheel doesn't have those variables. In the heat of summer, if you park a Class A facing south in the summer, your heat gain will be much greater than if facing south in the shade of trees. Using insulated window coverings can reduce heat loss in winter and heat gain in summer. Parking in a shielding grove of trees will help reduce heat loss on a windy winter night as opposed to parking on a wind exposed ridge.
I've not tried to use my RV in the depths of winter, however we've camped in Yellowstone in October when temps got down to near zero. I put a wireless remote thermometer in my heated wet bay to monitor temperatures, and can add incandescent trouble lights if needed. Opening cabinets and closets where water lines run to help add heat can also help.
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