exterior painting pealing after power washing T-111
Hello. A family member had their home power washed and then painted. This was done in 50-60 degree weather with anywhere from 0-1 and 2 days max to allow for drying in early october in the midwest prior to painting. It also rained at least some every day of the work (2 coats, prep and powerwash). The T1-111 siding is now pealing to the bare wood. However metal surfaces show no signs of pealing whatsoever. Given this situation does it seem like the issue would be the paint being defective or would the issue more likely be a potentially inadequate dry time after power washing...?
What should be the appropriate dry time and conditions weather wise after power washing T1-111 siding? Are these the symptoms you would look for with inadequate dry time or what would one examine?