Window problem

Jeneost
Jeneost Forum Participant Posts: 2
edited February 2014 in Caravans #1

When we went to check or Sprite Major 6 we discovered a long diagonal crack from the very top, in both skins of our front window. It's only five years old and stored on a secure storage site so I think we can rule out deliberate damage. Has anyone any ideas,
and when we fit a replacement (£500) could it happen again?