Quote:
Originally Posted by John Mercier
The real damage gets done when you either slam down on the ice dams to break them up, or accidentally get the aluminum edge to cut into the asphalt shingles; at that point you are into the substrate.
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Excellent advice.
Too many do DO damage to roof shingles with improper use of roof rake.
The roof raking should be done immediately after storm. And to make sure that the rollers are working properly.