Hairline cracks on my fiberglass roof cap

[RoadTripper2084]

I'm cracking up!  

...well, my rig's fiberglass cap is.  I have many hairline cracks on my roof cap, generally around the top corners near where the top belt-line attaches the roof cap to the sidewalls.

(sorry my rig is dirty at the moment)

I suspect this is related to the flexing that occurs at these points when traversing uneven terrain or levelling. I'm pretty sure they've been there for many years, not a new thing.  In any case, how concerned should I be? Do I need to remediate these somehow? Rig sits out all winter in freezing / thawing temps, will water freeze in these and make them worse?  

 

 

[timaz996]

I have similar cracks at the four corners of my coach and I have just sealed them with dycore non-leveling sealant. Not sure if that's the way to go but that's what I did. 

Edited Thursday at 05:40 PM by timaz996