ICE DAMNS SPRING THAW MOLD
Ice damming is a ridge of ice that can be formed at the edge of a roof and prevents melting snow which has accumulated over the winter from draining off the roof. Unfortunately, the temperatures don’t tend to stay high consistently. Often the temperatures will drop down to below freezing once night falls. This will cause whatever liquid has formed during the day to refreeze at night in the gutters and on the lower edge of the roof. This can create ice blockages that prevent moisture from draining properly and that will continue to build up over time resulting in Ice Damming.
In addition to added weight and falling icicles the water that backs up behind the dam can freeze beneath shingles or along weak seams, seep its way into the decking of your roof and causing rot or moisture damage to your roofing or insulation or further damage to the building. Signs of this moisture may be seen in attic or on ceilings and walls of interior rooms * see mold warnings at end of the article.
There are a number of ways to address ice damming – some interior, others exterior. All have associated costs, advantages and disadvantages. We recommend that if you are experiencing trouble with an ice dam – or suspect you see the symptoms of one – that you consult a qualified trades person as required.
Keep in mind: Recessed lights, skylights, complicated roof designs, and heating ducts in the attic will increase the risk of ice dam formation.
Employ a qualified professional to diagnose whether there is sufficient attic venting through the roof and any vents that are in place are being vented directly into the attic. This deficiency happens more than one would expect!
Moisture entering the home from ice damming can lead to the growth of mold and mildew. These biologicals can cause respiratory problems. It is important that the growth of mold and mildew be prevented. This can be done by immediately drying out portions of the house that are wet or damp and employing the use of a qualified mold remediator if necessary.
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