Ben what you need is a Practice truck. Some thing you can work on and get your skills honed. You are welcome to come up and work on my 49! Yep you guessed it. I have just about the same thing on my roof! The PO use a gallom maybe more maybe less, but it is a 1/4" to 5/16 deep. My guess is that someone stepped on the roof and well shouldn't have!. Hope all is well Down your way. How much snow do you have? UP here we are just cold no snow.
