i have prepared a sample project demonstrating the suggested approach. at roof flashing guys, we are here to fulfill your standards regarding roof flashing in beaver dam, wi. 16 district energy / fourth quarter 2018 © 2018 international district energy association. they take a piece of you to heaven with them. the purpose of a gutter apron is to keep the water flowing down your roof from curling back under the bottom shingle and causing damage. fall is a time of year that i have always enjoyed. nothing was left right now there. the parts are removable and can be washed very easily. 