by kennyrayandersen » Tue Jun 22, 2010 6:33 pm
2 considerations:
1) I think aluminum flashing is ‘dead-soft’ this means that it is extremely malleable and will dent VERY easily. They make it that way so it will conform to various roof contours, valley angles and whatnot.
2) It’s also pretty thin, if I’m remembering right
So, since one and two above, it may not take too long before it might look a little beat-up. If you hunt around you should be able to find some 5052 T-32 or T34, which is a consumer-grade aluminum that is pretty available and has decent strength. The cost isn’t probably as low as the flashing, but will take less labor to install and will be, I would think, much more durable (and so money well spent). You could put a lot of time and a fir amount into the flashing only to have to rip it off and put the more robust stuff on there anyway.