An existing building is to have the soffits corrected:
The correction is to remove the laterally installed soffits and replace them with radially installed soffits. Radial soffits are the first 75% from the left, laterals are the remaining 25%.
The middle of the photo (above right-side of ladder) shows a break between plastic and aluminum J-channel. It would be nice to use a single piece of J-channel.
When is it appropriate to use the plastic J-channel? Aluminum J-Channel?
A decision must be made and I would like to understand the pros and cons each material in this application. Lesson-learned / landmines to avoid are appreciated. Thank you