California Law requires that operable windows be open a minimum of 3 inches during fumigation. Windows that can’t be accessed and opened by ordinary means (without moving furniture, removing nails, or cutting a paint seal) can remain closed. Under most circumstances, ground floor windows on multi-story structures can also be left closed. Tiger Termite recommends using window locks or dowels to prevent windows from opening more than 3 inches. Check with your fumigator regarding your particular property.
If you have further questions regarding fumigation, call Paul at (909) 597-6953