How Much Mold Is Too Much to Ignore?
When some homeowners see mold growing in their homes, they just ignore it and move on with their daily routine. This is because they believe that the amount of mold they’re seeing is not enough to cause major damage to their health, building or belongings.
Some of the obvious signs of mold presence are faint/ musty smell, dark patches near windows and ceiling and a stain that keeps returning no matter the number of times you clean it. These signs can be easily overlooked but that doesn’t stop the mold from doing its damage. And when mold is ready to do its damage, it often does so like an iceberg. You’ll see the “tip of the iceberg” and assume that’s all there is, but in reality, there’s more lying beneath than you can see. And before you know it, mold has already done more damage than you expected.
So you may be wondering, why do most homeowners ignore mold when they see it growing quietly in their homes? The answer is not far-fetched, it’s a psychological issue and every individual has his/her own reason. Some people are afraid of the cost of removing the mold because they think it’ll cost them a fortune to high experts. There are others who ignore the issue because they are afraid of discovering bigger problems hiding behind the walls or surfaces where the mold is growing. Sometimes, some homeowners are not afraid, instead, they just hope that the spots will disappear magically or that the smell will fade away with time. Because of these fears and assumptions, they push the problem aside for weeks and months until the problem spreads and starts causing obvious damages. During the period of negligence, moisture is still present in the room and it’ll continue to feed the conditions that allow mold to grow and reach other areas.
One thing you need to know is that mold doesn’t just show up in places because it wants to be visible or show its colors. And that foul smell you’re perceiving is not in the space for the sake of being there. All of these are signs that something is not going the way it should and there’s imbalance in the indoor environment.
Whether the signs are as tiny as microbes or as large as a mountain, you don’t need to panic, what you need is thorough investigation to understand the nature of the issue and how far it has spread. The reason you need to investigate early is because mold issues do not stay the same way forever. It’s either the conditions encouraging the growth are properly sorted so the growth can stop or the growth continues because all the factors it needs are still in place.
Understanding the “Threshold”: Is Any Amount Safe?
We know there’s one question on your mind that’s still begging for an answer and that question is; how much mold is actually too much? The answer to this question is not WHITE or BLACK, however, there are benchmarks you can use as a guide to know the amount of mold that is too much in a space at a given time.
Mold Spores Are Naturally Present
Before we go deeper into the conversation, it’s important to note that mold is naturally present in the air in our environments. Whether you’re indoors or outdoors, there’s a possibility of having some amount of mold spores entering your nostrils.
Now, since we all know that we have no choice but to breathe in some amount of mold every day, it becomes easier to come to the realization that one cannot easily expect or experience a 100% “mold-free” environment. What you should be focused on instead are the conditions that encourage multiplication of mold and the major one is moisture. As soon as mold comes in contact with moisture it starts growing actively on surfaces and the concentration of mold spores in the air will rise beyond the normal level. It’s at this point we can start to say that the amount of mold is becoming too much.
When Does It Become “Too Much”?
Mold can be said to be too much when it’s no longer inactive and has started growing or spreading across surfaces in your home. We can also say mold is too much when you clean a stained surface and you notice that it always returns after some time. Whenever the amount of moisture in a space stays on the high side for a long time, then mold in that space would be higher as well.
We cannot say that mold is too much only when the size of visible patches are large. The moment the conditions that allow mold grow are in place, then it’s safe to assume mold is becoming too much. Mold will never say no to growth if it gets all the needed nutrients.
The EPA’s General Rule of Thumb
According to the United States Environmental Protection Agency, there’s no “safe” or “acceptable” amount of mold in an indoor space. It is believed that mold shouldn’t be permitted to grow inside your home. But since mold grows within 24 to 48hrs and at the slightest presence of moisture, it becomes almost impossible to say mold must not be found in a home. EPA recommends fixing the source of moisture as soon as they’re detected because if moisture is permitted, mold will always return after sometime. If the mold is already growing but it hasn’t covered up to an area of 10-square-foot inside your house then, it’s not too much for homeowners to handle. However, if the area of mold growth has exceeded 10 sq. ft. or 3ft. by 3ft. then the amount of mold can be said to be too much. And in this case, you must call a mold remediation expert to remove the contaminated materials from your house.
Let’s move on to the visual and non visual signs that mold is present or causing too much damage in your home.
The Visual Inspection: Identifying the “Red Line”
When most homeowners want to judge or measure the damage that’s being done by mold, they usually measure it by things they can see and that makes sense. It’s easier to measure or estimate visible mold spots or patches because you can easily tell if they’re small or larger. Some homeowners ignore small mold growth or prefer to manage it themselves. But when the area the mold is covering is larger, everyone agrees that there’s a much more serious issue that needs to be addressed by professionals. Let’s look at some visual clues for mold growth and how to determine if the amount of mold has crossed the red line.
Surface Mold vs. Structural Mold: When mold starts growing in a home, it can either stay solely on the surface of the material or grow deeper into the material. Some examples of mold that grows on the surfaces are; mold growing on bathroom grout, those around your windows or in areas where condensation forms regularly. These types of mold growth are usually caused by surface moisture and they can be easily removed from the surfaces.
Structural molds on the other hand are much more complicated. A structural mold is one that is growing deep inside or behind materials and it’s usually caused by moisture that moves deep inside the material. Some examples are mold growing behind drywall, under flooring, inside ceilings or inside wooden materials like window framing.
When mold invades the surface of a material and remains there, you can easily take care of the issue. But when it moves from the surface and goes into structural materials, it becomes harder to see or even remove the mold. And this is where the “red line” becomes obvious or where we can all agree that the mold issue or damage is too much.
What Mold Colors Really Mean: Is it possible to determine whether mold is too much in a place by merely looking at the mold color? Most homeowners are afraid of black mold because they feel it means the issue is severe but color alone doesn’t determine the severity of mold in a home.
Mold can appear as black, green, white, gray or even yellow depending on the environment and surface it is growing on.
White mold is usually found in walls and woods and it can blend into these materials and go unnoticed for a long time. Whenever you see a green mold, just know that the surface is always damp and hardly ever dries out.
Whether you see mold in a place, your concern shouldn’t be the color but the cause. Mold always grows wherever moisture is present. Color can only help know that mold is growing on a surface, it can never be used to determine if mold is too much in a home.
The Other Signs That Matter Just as Much: There are times when you’ll not see the mold itself, instead, what you’ll be seeing is the damage it has caused. Some of the possible damage are bubbling paint, warped baseboards, water stains on ceiling and crumbling drywall. All of these are signs that moisture has been present in the area for a very long time. And the longer moisture stays in a place the higher the chances of having mold growth in the area. So, it’s important that you recognize the visible damage because, sometimes, the damage is the only sign you’ll see. You might not come across visible mold itself.
The “Invisible” Warning Signs
If you rely on only visible signs, then you may never detect mold growth until it has caused irreparable damages in your home. Some mold problems are not visibly obvious in the beginning, instead, they show warning signs in ways that people can easily overlook. This is why it’s important to understand the non visual clues also so you can attend to the issue before it becomes too much or causes more damage.
The Sniff Test: One of the most popular invisible warning signs of mold in a place is smell. If you feel a persistent musty odor in your apartment or the smell keeps returning no matter how much you clean your room, then mold is likely the cause of the smell. When moisture sits in a spot for too long, it usually serves as nutrients for mold growth.
One thing you need to understand about mold is that it can produce that musty odor for a very long time without showing any visible signs. For instance, a wall may look completely okay, meanwhile, there’s hidden mold growing behind it and giving out musty odor.
Whenever you perceive a musty odor, don’t just use air fresheners to cover the smell, instead, investigate yourself or call a professional to carry out thorough mold inspection in the room.
When Your Body Notices Before You Do: Aside from sniffing around, there are other ways your body can signal you of mold presence. If you sneeze or cough nonstop for just no reason, then it’s possible that mold spores have infiltrated your airways. Another symptom that most people experience when mold is present in their homes is irritated eyes or throat. Other signs are headaches, fatigue or mental fogginess whenever you’re inside your house.
One of the ways to confirm that it’s actually mold causing these symptoms is if you step out of the house and you notice that the symptoms subsided and it returned immediately you step back inside. Although this test is not an automatic confirmation of mold presence because there are other indoor issues that can cause similar symptoms. But all of the above symptoms usually point to one thing; the indoor environment needs closer attention.
High-Risk Zones: Where “A Little” Is “Too Much”
Location plays a very important role when discussing mold presence or concentration in a home. There are some parts of the house where a little amount of mold can easily become a very big concern because of how fast mold can spread from that point.
HVAC Systems: One of the easiest and fastest ways to spread mold all over a house is through the HVAC system. If mold starts growing inside the HVAC system or inside the air ducts, the issue can move from ground zero to 1 million in a few minutes. This is because the HVAC system is designed to move air all around the house. Any time you turn on your hvac system, mold spores will start spreading to places like bedrooms, living spaces and other areas in the house.
When mold grows in the HVAC system, it usually grows in hidden places which means the issue can spread for weeks and months with you realizing.
This is one of the situations where even “a little” mold should never be ignored. If ignored, it’ll spread quickly and cause heavy damages in the house.
Behind Drywall: A drywall is one of the most vulnerable materials because it contains paper and cellulose-based materials which are the exact type of organic materials that mold can easily feed on. The moment moisture comes into the picture and gets trapped behind the walls, mold starts growing non-stop.
One thing you should know about drywall is that the mold stains that you see on the surface is usually smaller compared to the actual mold growing behind the scene. And all it takes is a little mold to start the damage and before you know the damage has become overwhelming.
Attics and Crawlspaces: Attics and crawlspaces usually have the least human activity in any house but these spaces can trap moisture if you have a leaking roof or when humidity builds up within the space. The moment moisture settles on vulnerable materials in the attic it gradually allows mold to grow. As time goes by, mold in these areas may start affecting wooden beams and other structural supports.
If the issue lingers for too long without being addressed, the materials will weaken and start to rot little by little. This gradual deterioration can continue quietly for years until the structure finally collapses. Mold growth can move from a little to too much in attic and crawlspaces and it can continue for years without stopping.
Porous Materials: Many homeowners assume that they can just wipe mold off surfaces and the problem will be gone, but that’s not always possible. If you’re dealing with nonporous materials like glass or metals, it might be possible to clean the surface and eliminate mold. However, when it comes to porous materials you can’t do the same. This is because porous materials allow moisture to move deep inside of it.
Things like carpets, drywall, ceiling tiles and wooden materials can absorb moisture and mold spores. When these two penetrate the materials, mold starts growing inside. Sometimes, you might see large size mold on the surface of these materials while other times you might only see tiny or not so obvious mold spots.
Wiping these surfaces will not resolve the issue because the real mold growth is happening deep inside the material. You’ll only succeed in temporarily removing the surface or visible mold, but the material underneath may still be heavily contaminated.
In these types of high-risk materials, the question you should be asking yourself is not how much mold you can see, but how much damage is happening behind the surface.
Prevention: Keeping the Damage from Returning
Removing mold is just one part of the solution; the major goal is to ensure that you no longer have a repeat of the situation and this can only be achieved if you can control the conditions inside the house that caused the mold growth in the first place.
Moisture Control Is a Long-Term Solution: Mold doesn’t grow without a reason and one of the major factors that support mold growth is moisture. If you can control moisture then you can easily prevent mold from returning to your home. To control moisture, you’ll have to fish out places where there are leaks of any kind. You must also be ready to improve airflow in the space and pay attention to anything that causes condensation. When you do all these, you’ll have successfully taken care of factors that make the house damp. Where there’s no dampness or moisture there’s no mold growth.
Managing Humidity in Problem Areas: Some rooms in the house naturally hold more moisture because of the kind of activities taking place there. Rooms like the kitchen, bathroom, laundry area and basement are likely trouble spots because moisture is always being used in them. To take care of humidity in these rooms you have to find a way to improve the airflow either by using extractor fans regularly or by opening windows whenever it’s possible.
Some homeowners rely on dehumidifiers to remove excess moisture in the indoor environment and reduce the humidity level in the house. Your goal is not to make the air in your home completely dry, instead, your target is to stop moisture from building up so that mold will not be able to grow.
The Importance of Regular Checks: If you’re determined to get rid of mold issues then you must be ready to do regular checks in areas that people usually ignore. Always check the back of your furniture, underneath the sinks, window areas and ceiling or attic space. These spots are the hotspots for hidden moisture. Every time you check them, you’re doing a moisture inspection so you can catch small moisture problems before they become too much to handle.
Conclusion
Are you still wondering whether there’s an amount of mold in a home that can be termed safe? The truth is, there’s no hard or fast rules to this and no amount of mold is safe to ignore for a long time.
When mold starts growing, it usually gives clear warning signs like visible spots or patches, persistent musty smell, discomfort within the space and other signs of damage. Once you start feeling any of the above signs, it means the issue has already crossed the red line and has moved from minor to a major issue. The earlier you notice the signs, the easier it becomes to find a solution.
To fix mold problems, you can start with a simple inspection or do a mold testing in the areas you’re suspecting. Then, you can assess the extent of spread whether it has exceeded 10ft.sq. guidelines or it’s still within the range. All of these help you know how to handle the issue; whether to call a professional or clean up the mold yourself.
