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ventilation

Courthouse of Horrors

October 29, 2010

Inspectors found a significant mold spore count in the air and a large amount of slimy mold in the events. The building had a noticeable moldy smell. Employees have complained about “strokes, allergies, rashes.” In the last two years, three employees have had to be carried off by ambulance to the hospital.

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Attic Ventilation Tips

May 25, 2010

While the more attic ventilation the better, more vents can upset the delicate balance here. I heard of one story where a homeowner tried to increase their ventilation rate by installing two different kinds of outlet vents. This resulted in transforming the weaker outlet vent into an inlet vent. Air simply short circuited between the vents, preventing soffits from drawing in air flow.

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Oak Ridge Elementary Finally Reopens After Exhaustive IAQ Battle

March 30, 2010

Someone could make a documentary about this story, but to sum things up – students and teachers at the school were becoming sick, fingers were pointed at mold and moisture issues, the school spent thousands on testing but could not find a definitive link to mold, eventually the school was shut down. After so many months having to split students among nearby schools, parents were eager to finally send their kids back to Oak Ridge.

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Building Design Mold Hazard: Vented Crawl Spaces

December 9, 2009

With vented crawl spaces, hot summer days allow hot, humid air to cool in the crawl space. As the air is cooled, the humidity increases within the crawl space. Once the air exceeds 100% humidity it starts condensing on cool surfaces in your crawl space.

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Blame Game with Nonprofit Housing Developer

December 7, 2009

The homeowners want the mold removed and reimbursed for an independent mold study by the project, as well as another study in one year. But the executive director says it is the homeowners’ responsibility to check their crawl spaces regularly for mold.

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Preventing Window Condensation in Winter

October 15, 2009

Condensation occurs when a substance changes from a gas into a liquid. This happens when the temperature of a vapor is lowered to its dew point. Think of condensation forming on the outside of a glass of cold water. The water vapor in the air touches the glass and cools to become a liquid state. We often don’t realize how much water is floating around in the air.

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Why Schools?

September 28, 2009

The design of most schools makes them susceptible to water damage. Unlike houses, with slanted tile roofs, schools are built with flat roofs. This allows water to pool after rainstorms and eventually creates leaks. For this reason, new schools are often built with pitched roofs.

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