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Julie graduated from Creighton University with a major in dance and Theology and taught for several years at an inner-city school in Milwaukee. With a desire to expand her knowledge of the arts and spirituality, she attended St. John’s University in Collegeville and completed a Masters in Theology and Liturgical Studies. Over the years, her quest to merge diverse religious beliefs and practices through the commonalities of love and peaceful living, led her to travel, live, and study with shaman practitioners, herbal healers, Native American medicine women, Buddhist priests and other earth-based spiritual teachers. Through these experiences and experiences with global metaphysical teachings, she learned to honor the eternal source of love in all people.

Thursday, January 21, 2010

Ice Dam Potential Damage

The Havoc Ice Dams Wreak by Paul Fisette

Contrary to popular belief, gutters do not cause ice dams. However, gutters do help to concentrate ice and water at the very vulnerable roof eaves area. As gutters fill with ice, they often bend and rip away from the house, bringing fascia, fasteners, and downspouts in tow.

Roof leaks wet attic insulation. In the short term, wet insulation doesn't work well. Over the long term, water-soaked insulation remains compressed, so that even after it dries, the insulation in the ceiling is not as thick. The lower R-values become part of a vicious cycle: heat loss-ice dams-leaks-insulation damage-more heat loss! Cellulose insulation is particularly vulnerable to the hazards of wetting.

Water often leaks down within the wall frame, where it wets wall insulation and causes it to sag, leaving uninsulated voids at the top of the wall. Again, energy dollars disappear, but more importantly, moisture gets trapped within the wall cavity between the exterior plywood sheathing and the interior vapor barrier, causing smelly, rotting wall cavities. Structural framing members can decay. Metal fasteners may corrode. Mold and mildew can form on wall surfaces as a result of elevated humidity levels. Both exterior and interior paint blister and peel. And people with allergies suffer.

Peeling wall paint deserves special attention because its cause may be difficult to recognize. It is unlikely that wall paint will blister or peel when ice dams are visible. Paint peels long after the ice and the roof leak itself have disappeared. Water from the leak infiltrates wall cavities. It dampens building materials and raises the relative humidity within wall frames. The moisture within the wall cavity eventually wets interior wall coverings and exterior claddings as it tries to escape (as either liquid or vapor). As a result, interior and exterior walls shed their skin of paint.

1 Comments:

Anonymous Radiant Barrier said...

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February 20, 2010 at 1:22 AM  

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