Mold - Frequently Asked Questions

Some mold is hidden from view, such as the mold shown in this image, which was discovered when cabinets were removed from a wall (Photo courtesy of Mike McNickle) How long does it take for mold to grow? The speed at which mold grows can vary depending upon situation and species.  The variables in a given situation are amount of moisture, food source and temperature.  Some spores can grow in 24-48 hours if they have a sufficient food source such as drywall or wood. What is mold? Mold is similar in some ways to the other members of the fungus family.  They have no stems, roots or leaves.  They are a microscopic fungi that grows and reproduces rapidly.  Their microscopic spores or reproductive cells are always floating in the air.   In the cycle of life, when something dies, mold spores land on it, they germinate and then proceed to consume it.  There are thousands of different species and are classified by the environment they choose to grow in.  These classifications are based on food type, moisture levels and temperature. Are people allergic to mold? Many people are in fact allergic to mold.  Some species of mold and bacteria are toxigenic or capable of being poisonous.  Bacteria and mold that exist in the environment are rarely infectious.  About 10 percent of the population in the U.S. has some type of allergic reaction to mold of some type.  If mold is growing indoors, a high concentration of spores can be found.  The higher the concentration the worse the allergic reaction is likely to be. How dangerous is mold? Some types of mold produce myotoxins as a defense mechanism.  Toxic molds, such as penicillium, stachybotrys, cladosporium and aspergillus, can create problems with indoor air that may lead to allergic reactions or sickness.  People can be exposed to these toxins by inhaling, ingesting or touching the mold.  The individual’s susceptibility depends on the type of mold and the amount of exposure they receive. How can I prevent mold growth? To prevent the growth or spread of mold you must first control their factors of existence.  Since we build houses that are veritable smorgasbords to fungi and our climate is mostly warm and humid, we must be able to control the amount of moisture present.  By eliminating water intrusion problems and responding timely to “water events” you can greatly reduce the chance for further growth.  How effective are do-it-yourself test kits? They are highly ineffective and often times handled by a low cost high volume laboratory.  If you feel you have a mold situation you should contract with a reputable firm such as MSA to accurately diagnose any moisture problems and assess for mold with the backing of a reputable lab such as ________. Our highly trained technicians will conduct a pre-assessment interview, and custom tailor our testing to suit each individual need.   Once your property has been tested, our staff will overnight your collection of tests to the laboratory to help ensure a quick turnaround.  In most cases our clients see a 48 hour turnaround.  Once MSA receives your test results, we prepare a custom report that is both accurate and easy to read. Moisture is known to be the single greatest threat to the durability and long term performance of housing structures.  Excessive exposure to moisture is a common cause of significant damage to many building components and materials.  It can also lead to unhealthy indoor living environments.  There is agreement by building professionals that the successful management of moisture, in its various forms, is vital for houses to be safe, durable and energy efficient.  At MSA we have the latest technology to diagnose water issues, assess the indoor environment and put the control back in the home owners’ hands regarding longevity and the health of their biggest investment.  Problem Areas in New Construction Paints/caulks/finishes Flooring Windows and skylights Doors Foundations and basements Siding and trim Structural sheathing Wallboard Foundation Insulation and waterproofing Framing National Association of Home Builders (NAHB) Most Frequent House Problems Improper surface grading/drainage Improper electrical wiring Roof damage Heating system Poor overall maintenance Structurally relating problems Plumbing Exteriors Poor ventilation What is the cost of maintenance? The typical cost of annual, out-of-pocket maintenance or repair is about $300 - $600. NAHB Housing Economics Top 5 Home Owner Warranty Claims Based on Frequency                             Based on Cost of Claim Gypsum wall board finish                       Foundation wall Foundation Wall                                    Garage slab Window/door/skylight                           Ceramic tiles Trim and moldings                                 Septic drain field Window/door/skylight frames                Window/door/skylight and other Click here to request a mold screening assessment. Click here to request more information.