Roof racks have been known to fail at high speeds with lots of updraft so take the extra precaution of tying the roof rack down to the roof of the vehicle as well.
How to use tie downs straps on roof racks.
Use ratchet or cam straps to tie the roof rack through the doors not the windows.
Use a tie down that wraps around the item and the rails.
Thread the tie down straps beneath one side of your crossbar.
Toss the strap over the canoe and thread it beneath the crossbar s opposite side.
Next pull the long end of the strap under the crossbar on the.
First loop the strap under the roof rack s crossbar and drape the loose ends over your oblong load i e.
With the third option crossbars with side rails you can secure an item to the side rails and run tie downs from front to back securing them to the crossbars.
Remove your rack when not in use to avoid the added weight drag and noise.
On each side of the roof you ll see a rack that runs the length of the roof of the vehicle.