SINS.... an "ice melter" of whatever. NOT "salt"... not sodium chloride. Calcium chloride... urea... whatever. The shops here carry many "concrete friendly" ice melters. Do NOT use "salt". It will eat the asphalt in yer shingles if you have asphaltic shingles.

Of course, if you have to make a choice between using "salt" and getting water damage in your ceilings and walls....