Dry rot could be the result of too much contact with moisture. The best thing you can do without moving to a good solid home is actually by spray house with pesticides and hope for the best. Many good sources can be available online, or a few obvious methods stores which pest control departments. https://Wiki.Insidertoday.org/index.php/Reasons_For_Hiring_A_Pest_Control_Company_For_Your_Treatment_Of_Domestic_Pests