Deege, lots of windows round my way have plastic bars stuck on to make them look Georgian or even four paned instead of two . Over time the glue fails and the strips fall off. Just wondered if people thought it happened quicker with wfp. Also if u think wfp flakes paint quicker do u trad or avoid wooden windows.
Most of the concerns you have will been caused by heavy handedness, but you can get poorly constructed windows that will
cause you problems.
I priced one with the stuck on strips a few years back, the owner had already called the supplier out to replace some that had
come off, I could see that a few more had started to come loose so didn't bother with the job as me rubbing them with a brush
wouldn't have helped.
The paint needs to have flaked already for you to remove it with your brush so its not wfp that flakes windows, its the sun
and poor maintenance.