Flexible Solar Panels

As a retired solar design and reliability test engineer I recommend NOT getting any so called flexible solar modules. Solar cells are crystalline silicon and as such are not flexible. They will fracture and break over time. Also, this type of product uses a polymer (plastic) cover which will both allow moisture to penetrate as well as subject the cells to impact damage from hail, rocks etc. In addition, directly attaching a solar module to a roof is bad for both the roof and the module due to excessive heating.

Get a glass solar module with an aluminum frame and either mount it on the roof with a air space or keep it portable. It will last much longe, perform better, and you will be happier with it over time. I have designed, tested, and provided customer service for both types of product for many years and can assure you I am very familiar with them.