Place a ladder against your house, ensuring it is stable. The ladder must be tall enough to extend just past the roofline.
Fill several nylon stockings with rock salt. Tie the open end of the stocking to finish each tube.
Carry the salt-filled stockings up the ladder. Place the tubes at equal intervals depending on the number of stockings you have, and the length of the ice dam. Consider placing additional tubes in the areas with the thickest ice.
Remove snow and melting ice from your roof with a snow rake or wide shop broom. Stand on the ground while using the rake or broom; for your safety, do not attempt this while standing on the ladder.
Refill and reposition the salt-filled stockings as needed to finish removing any ice dams.