What broke and allowed the cover to fly up ??
I went back and looked through all the pictures I took of the arena damage. It’s hard to tell what failed first.
I do know that it wasn’t hit with debris. With the direction of wind, there wasn’t anything close enough to hit it. I had damage to other structures and those pieces were accounted for and down wind of the structure.
From what I could tell the possibilities are:
-Failure of the stretch pockets along the top that keep the bonnet from flapping. The ratchet straps that stretch and hold the top of the cover down were all still attached to the frame!
- I suppose the PVC pipe used within the stretch pockets to stretch it could’ve failed, but it’s what came with the building and the design calls for.
- The heavy duty galvanized pipe in the bottom stretch pockets were bent in half. Not strong enough?
- Poor design of the skirting rail? The skirting rail sits in this channel built into the base plates. It’s held in place by 8 screws. The last time we had storm damage, we noticed it popped out... so in addition to the screws, we added a small weld to each one but it still came out! Not sure if the skirt rail has any impact on the damage done though. It’s just to keep the bottom skirt from flapping.
- The corner base plate ratchet mechanism gave out? The strapping was still attached to the cover and the base plate but it had unraveled.
The first failure was caused by a rip in the seam and was mentioned to Clearspan prior to the storm ripping the whole thing off. There was no other obvious structural failures other than the skirt rail thing. That’s probably why they replaced it without much of an issue.



