Today’s houses seem highly susceptible to mold. Building scientist Joseph Lstiburek explains why: wood products that can’t tolerate mold; houses that don’t dry out properly; hollow walls stuffed with insulation; and how the way residents use the mechanical systems affects the house’s envelope. Lstiburek says that the fix to mold problems is clear: Water problems must be repaired quickly to prevent water from entering today’s high-performances houses. The article includes sidebars on whether moldy framing lumber can cause rot, how mold can make residents sick and how to remediate a mold problem.
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