Good day,
My windows started 'loosing" black plastic parts of the window. It looks like some sort of weatherstripping. You can see that the bottom part of the window still have that part, but the side one got broken. You can see just remaining part of it.
I found out that company no longer in business. I still like the windows and want to maintain them.
Can you, please, help me to identify how that part is called and how to change it (video).
Sincerely,
Valentina