Ice dam potential prior to re-roof
Over the last year my house has gone from almost 100% shaded to 100% full sun with some town trees that have come down. Home is oriented E-W, with the front of the home a couple degrees south of true W. In August, almost 8 hours of sun hit the front side until the Sun eventually hit the treeline around 8PM.
I’m looking to re-roof, and curious how this might impact my ice daming risk and what precautions or answers I should be looking to get from contractors ie amount of ice+water shield, if needed? Rafters are R-31 OCF. Roof pitch is pretty steep, if that helps. Once or twice over the last 6 years, prior to trees coming down, the front gutter would ice up pretty good but it wouldn’t creep up much (and porch is 3-4′ out before conditioned space). I had also noticed a little ice build up where the shadow is where the two pitches meet for the bump out. Again, never water in the home, but occurred under more shady conditions, with a lot of snow as well. I probably should have roof raked that area in hindsight. Maybe this is moot as the trees don’t have their leaves anyways? Curious if GBA had any recommendations. House is outside of Boston.
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