Q. On every single window seal in my house, we have mold that appears every week. I have been cleaning it off with bleach, but I want to know how to make it stop. All the windows are only 2-3 years old, and we have recently insulated our house with foam. Is there anything we can do? [December 6, 2004] A. Bleach is ineffective to kill mold on porous surfaces like wood building materials. Read: Bleach Mold Myth. What you need to use a strong killer like 10% hydrogen peroxide [from beauty supply store], or, better yet, use a low cost Mold Home Remedy Recipes available at Mold Mart.. You need to find and fix the water source that enables the mold to grow. The most likely culprit is high humidity [60% or higher indoor humidity level]. Buy a $30 digital hygrometer from a large hardware store, Home Depot, or Lowe's to check your indoor humidity through out the house on a year-round basis. You may need to use a programmable dehumidifier to keep the humidity to a mold-discouraging 30 to 40%. Another possibility is that your home contains elevated levels of airborne mold spores, a very serious problem for your home and health. the 25 steps recommended for safe and effective mold remediation.
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