Roofer J, I need advice on flat roof snow removal

how does salt ruin aluminum gutters? I believe,that the salt may impact in color and it may cause the further damage.

It will cause it to corrode and get pitted. Ever seen a truck that has been driven in salt water ?

theres organic stuff you can use that wont damage of discolour shingles. used it for a couple of years and no complaints even on black shingles. you would think i would remember what is called but we have pallets of it so i just grab it when i need it, i belive its preety expensive though but works great. next time i use ill keep a bag and post later.

yes,but is that not steel?