a better insulated roof/attic is less prone to ice damn formation,
"Bob K 207" wrote in message
...
I think I understand the mechanics of ice dams. Up until recentely they
were
just an academic topic for me. I now own a home that is suglect to
occasional
ice dams. Two occurances in the last 5 winters.
The roof is metal (standing seam?), dams (so far) have only occured in two
places on the ~south facing roof slopes.
Question............is this a design problem, construction problem or so
they
just happen?
Is the solution something like Raychem heating cable?
Bob
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