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View Full Version : Rubber roof and Salt


keepahohfour
Dec 18, 2007, 06:53 PM
I have a rubber roof on a building and in the winter the ice dams up the drains on the low end of the roof. Could I put some road salt on the roof to keep the drains from freezing?

labman
Dec 18, 2007, 09:25 PM
I have no practical experience in this area, but as a chemist that has worked with rubber, I can't imagine the salt hurting the rubber.

Note, may not be the best for a metal gutter.

ballengerb1
Dec 18, 2007, 10:08 PM
It should be fine but try calcium chloride rather than sodium chloride. It will continue to melt at a lower temp than sodium. If you have time read this. Calcium Chloride (CaCl2) (http://www.dow.com/productsafety/finder/cacl_2.htm)