How do I prevent the formation of ice dams on my roof?
How do I prevent the formation of ice dams on my roof?
user
Let me see what resources I can find that might be helpful.  There is a report of the Arizona Department of Emergency Management and Homeland Security that goes into more detail on the steps to prevent ice damming, but it’s pretty technical.  Do you want me to try to summarize the main points in plain English?
assistant
Yes please.
user
They talk about freezing water penetrating the surface of the roof, but the steps to prevent this may also be helpful.  They recommend replacing shingles that are more than ten years old, to make sure the wood is sufficiently dry before winter, because the wood is supposed to dry more than wood in hot weather.  They also recommend making sure to have the roof’s ventilation tiles uncovered when the winter weather gets colder.  Also, they say that the water should be drained as soon as it can, so that the water doesn’t accumulate.
assistant
Thanks so much!  This was really informative!
user