Prepare For Mold When Remodeling

Knowing the proper mildew removal and mold removal techniques during a remodeling project could prevent health symptoms later in the home occupants. Mold removing techniques should be well thought out just in case it is found within the walls during remodeling.

One of the leading causes of mold and mildew contamination in the home is from a roof or plumbing leak. Over 90% of these types of leaks will result in mold or mildew growth within the walls of the housing structure. This mold can lay dormant until someone disturbs it leading to contamination throughout the entire home.

Dead Spores Are More Dangerous

Mold and mildew spores from dead or non-viable mold are the particles most likely to become airborne within the indoor environment and may actually remain airborne for hours at a time only to be breathed in by persons living in the home. Persons who have an inherent mold allergy to a particular mold species face the greatest risk from mold and mildew exposure. However, anyone who is exposed to large quantities of mold spores can also experience acute allergic reactions. Mold spores found in walls can also cause acute asthma in toddlers as well as a rash allergy in adults. Oddly, it is the indoor relative humidity level over extended periods of time that determines the amount of mold spores which can become airborne.

Be Prepared for the Worst

Have certain supplies and equipment available just in case mold is found within the walls during the removal of sheetrock. If a small amount of mold and mildew is located within the wall cavity, you will have the proper items to attempt a do-it-yourself cleanup. The following list are some of the primary items you may wish to have before attempting wall board removal, especially if you believe the area may have experienced a water leak in the past.

• A HEPA (High Efficient Particulate Air) vacuum should be used to remove mold spores from wall board and wood supports.


• Heavy mil plastic to wrap pieces of mold contaminated wall board before moving to the outdoors.


• A spray bottle with a 10% bleach to 90% water solution. (Note: do not spray directly onto copper piping or other metal parts as bleach is very corrosive)


• Other strategies include; turn off central air systems since it may spread mold and mildew spores throughout the home, limit the movement of other home occupants during the removal process and seal off the work area or room from other indoor living spaces.

Additional Precautions

If heavy mold and mildew growth is found, it is highly recommended that you consider having it tested by a mold inspection professional to identify the species present. Toxic molds may be present and should not disturbed until they are identified. If toxic molds are present, it is wise to consider hiring a mold remediation specialist to have it properly removed. Toxic spores in the indoor environment can lead to acute or chronic health symptoms and must be removed using specific protocols.