Daily Archives: March 26, 2014

An Unintended Effect of Energy-Efficient Buildings: Toxic Mold

By Sarah Zhang, http://gizmodo.com

Energy-efficient buildings can be wonderful at keeping out drafts and keeping down heating bills. But the same air-tightness, unfortunately, is also perfect for trapping humid air where toxic mold can go to party.

The Alberta Court of Appeal in Canada has been a mold-filled ghost building since 2001, after renovations to the handsome, 87-year-old sandstone building went awry. When the renovated and newly energy-efficient building reopened, according to ClimateWire, judges and attorneys complained of fatigue, irritated lungs, and watery eyes.

Air quality samples pointed the finger at mold growing inside the walls. The cracks and leaks of the pre-renovation building had been a crude form of air-quality control—albeit not very energy efficient. The new airtight building, however, trapped moisture to breed toxic mold. Read More