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The Home Depot

Top Causes of Drywall Rot

Pro Referral > Home Guides > Drywall > Top Causes of Drywall Rot
Top Causes of Drywall Rot

Rotting drywall in homes can be a pretty big problem considering it is a problem that affects such an important component of your home (the walls). Drywall will need to be fixed regardless, but you may need to get it done faster if you plan on selling your home soon or if any health issues arise from the rotting drywall. There are a couple different reasons that drywall will begin to rot, and we have compiled a list for your awareness.


If you suspect that you have rotted drywall, you should talk to a professional drywall contractor as soon as you can about getting it fixed. If it isn’t fixable, you should most likely consider relocating unless it is a very minor rotting problem.

  1. Although small leaks may seem harmless, they can eventually cause much bigger problems when left alone. A small leak is still a leak, and any type of water damage will turn the insides of walls rotten.

    1.You Own a Bathroom

    As silly as it may seem, one of the top causes of having rotted drywall is having a bathroom. The bathroom is the most common place for drywall to rot since it is so commonly exposed to water. You should always check around your bathtub and the wall surrounding the toilet. These are the most easily damaged areas in the bathroom, and usually within the entire house. A leaking toilet can easily cause rotted drywall so make sure that the seal is always tight and that the back of the wall is dry.

  2. 2.You Live with Harsh Weather

    One of the reasons that drywall begins to weaken and rot is due to excessive water damage or leaking. If you live in an area that tends to accumulate rain and may get a lot of storms, your drywall may be in danger. Always make sure that your roof is in working order so that no unnecessary leaks can occur. A leaking roof can eventually seep into the ceilings and walls, which will in turn cause insulation and drywall to rot faster.

  3. 3.You Ignore a Small Leak

    Although small leaks may seem harmless, they can eventually cause much bigger problems when left alone. A small leak is still a leak, and any type of water damage will turn the insides of walls rotten. Damp areas that are frequently exposed to water (such as around the walls by the sink in your kitchen) are very susceptible to water damage and rotting. Drywall is meant to be dry, hence its name. To protect your house best, you must always be assured that your drywall is not coming into contact with any unnecessary water. Even a small puddle of water near a corner can deteriorate and weaken a wall enough to the point of rotting.

  5. 4.You Have a Broken Plumbing Pipe

    Perhaps your dryer vent is leaking somehow, or some innate pipe under the dreaded kitchen sink isn’t quite doing its job properly. Whatever the problem may be, broken plumbing pipes can create a lot of water damage in a small amount of time if it is left alone. Rotting easily occurs underneath sinks where plumbing pipes are stored, and since most people don’t go in with a flashlight and check the pipes very much – lots of leaks usually go about unknown. We suggest that you check your pipes at least twice a year, especially in more harsh weather and wetter seasons. In the winter when snow is melting there can easily be too much water which can flood certain vulnerable parts of the home. Check crawlspaces and anywhere that may be underneath ground level. These parts of your home are very susceptible to water damage and drywall rotting.


    You should always be careful when dealing with rotted drywall since it can have negative health benefits. Read up on why it is so important to take care of rotting drywall and if you are not a do-it-yourselfer, hire a professional contractor right away to get your home back on track.

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