Recently, I came across a thread on Facebook where several owners were experiencing long cracks on the roofs of their rigs. The rigs include a 2022 XL, 2022 Europa, 2- 2022 DX3's, and a 2020 DX3. To my untrained eye, they look like stress cracks and of the pictures posted, all seem to start at a roof vent or skylight and I would imagine that all the cracks will continue until they reach the roof edge.
Does anyone have experience with this type of problem? If so, what might be the most reasonable cause and what can be done as a preventative measure?
Most recent thread I found on a 2022 DX3 where the crack was not stemming from a vent/skylight: