This is the #1 Cause of Ice Dams According to Roofers

If you deal with ice dam issues on your roof each winter, it’s not because anything is wrong with your gutters or even the roof itself. In fact, the roof is most likely perectly fine. An  ice dam is actually the result of poor ventilation and insulation in your attic that's causing the snow on your roof to melt too quickly. We sought out several roofing experts to find out what homeowners can do to diagnose and prevent their ice dam dilemmas. 

What Causes Ice Dams?

Here’s what’s happening.