01:00PM | 01/14/99
What is wrong? Two of our five eaves vents have dirty icicles coming out of them. We have had lots of snow since Jan 1, very cold temps and icicles and snow on the roof, but since 4 days ago, these horrid things attached to the eaves vents.

Now today we have water from above the window closest to these two icy vents.

History is: Re-roffing 4 years ago, new gutters, retrofit 2 years ago sheathing to keep water from going behind gutters. At time of re-roofing, eaves vents were added and new venting fans from bathrooms directed to exit air through two vents.

Our roofer is backed up with 4-5 days of ice dam problem calls... is that what we have? Why, with such a new roof? Any help would be appreciated. Katy in Michigan


01:06PM | 01/15/99
New roof, old roof, the ice really doesn't notice. With all of the freezing rain followed by freezing temperatures and snow, caused the ice at the edge of your roof to become larger and larger and clogging up your gutters. As this ice begins to melt underneath it has no way of flowing into your gutters to be carried away. Since it is a "dam", the water begins to back up underneath your shingles, roofing paper, through the wood sheathing and into your house.
There is a membrane that is used for this purpose. It is used in place of regular roofing paper on the first and sometimes second row. It is self sealing and highly recommended in the northern climate. It costs a little more but your roofer should have suggested it to you. It can be retrofitted for the future, or you could install a heating cable for winter use.


03:42PM | 01/15/99
I just remembered. If you click on the old BBS for this sight, scroll down to the date of 1/11 and look for "Not a good situation" from JayJ. He lists a sight from the U. Mass. that will also explain the situation and also offer some solutions, particularly on the insulation. Some of his thoughts are theoretical but worth reading.
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