I'm looking for ideas on ways to attach the forward corners of the roof to the roll bar without drilling into the roll bar. On several occasions I had tree branches wedged between the roof and the roll bar that could have damaged the roof. There is a 1.5 inch gap between the two on my machine. I would like to install some kind of sharp edge vertically between the roof and the bar that would sheer off the branches so they can't get caught between the two, and secure the roof at the same time. Do you have any ideas for some off the shelf items I could use for that?