Whether you live in a warm or cold climate, every homeowner should make it a priority to manage the humidity levels in their home using a home humidity chart. Not only does your home humidity level affect your comfort and health, but it also can affect the “health” of your home.
The Importance of a Home Humidity Chart
Humidity levels can affect any environment, including the inside of a home. When humidity levels are too high, there is too much moisture in the air. This can lead to mold growth, asthma, allergies, and even structural damage.
On the other hand, when humidity levels are too low, there isn’t enough moisture in the air. This can cause dry skin, itchy eyes, crack wood furniture, and general discomfort.
It is essential to strike the right balance between high and low humidity. A home humidity chart can help owners manage humidity levels and adjust their temperature settings to achieve an ideal environment. A home humidity chart can also give you a better idea of how in-home temperatures affect moisture levels.
What is Relative Humidity?
Humidity is the amount of water vapor present in the air. When we talk about humidity in the home, we are talking about relative humidity. Specifically, it is relative to the temperature, because the air can hold more water during warmer months than in colder months. This is important because maintaining ideal humidity during summer is different than maintaining ideal humidity in winter.
What Humidity Should My House Be?
You might find yourself asking, “What should the humidity be in my home?” The ideal relative humidity level for your home is between 40 and 50 percent, especially if you have hardwood floors. If you don’t have hardwood floors, going up to 55 humidity may suit you.
Anything outside these percentages can impact your:
- Health
- Comfort
- Cost to cool or heat your home
- Home’s structural integrity
Given that overall temperature can affect moisture levels, it is best to refer to a home humidity chart.
Humidity Setting for Summer Versus Winter
Since warmer air can hold more water, humidifier settings can be counter-intuitive. In other words, your humidity setting for summer will be higher than your humidity setting for winter, even though we think of winter as drier. It is drier because the air holds less moisture, but because it holds less moisture, our effort to put moisture in it changes.
What is the Best Home Humidity Setting for Summer and Winter?
When outdoors temperatures are between zero and 10 degrees Fahrenheit, set the humidifier to maintain 25 percent relative humidity. When the temperature is between minus 10 and zero degrees, set the humidifier to 20 percent.
If you live in a seasonal climate, in the summer, you’ll need to work to keep your relative humidity low. It will want to creep up, especially if humid or rainy outside. Keep it below 50%. If you get above this, you can turn your air conditioning to a cooler temperature, or even shut your humidifier off. Not making this change may affect the proper functioning of your central air conditioner.
In the winter, then, your challenge will be the opposite – to not let your relative humidity get too low.
Is 55 Humidity Too High?
As previously mentioned, if you have hardwood floors, it may be better to go with 55% humidity. However, if you don’t have hardwood floors, keep your humidity levels between 40 to 50 percent.
Humidifier Settings Chart
It can be difficult to know what humidity level to set in your home depending on outdoor temperatures. This indoor humidity chart will help you keep your home comfortable.
Refer to the ideal indoor humidity chart in Fahrenheit below:
Signs of Problems With Your Humidity Level
If you see frequent foggy windows, especially for temperatures above zero or ten degrees Fahrenheit (-18 to -12 Celsius), you may have a concerning level of relative indoor humidity. Even worse, moisture will build up on walls or ceilings.
Even in modern homes, this can be due to inadequate ventilation, causing internal moisture build-up from cooking and bathing. Lowering the humidity in your home at this point is crucial to avoid mold growth and structural damage.
You can test your humidity levels with a hygrometer that you can pick up at your local hardware store. There are plenty of in-home tests you can do, too. One trick is to place a few ice cubes in a glass, add water, stir, and wait three minutes (don’t perform in the kitchen). If moisture does not form on the outside of the glass, the air is too dry and you may need a humidifier.
What Happens if Relative Humidity is Too Low?
For the structural integrity of your home, too-low relative humidity is the better of the two imbalances. However, if humidity levels are too low in your home, you may run the risk of dry and itchy skin, catching a cold, and possibly ruining your wood furniture.
As we run forced heat during the winter months, air dries out, leading to uncomfortable environments. You can invest in a portable humidifier, but you should also have your home’s humidifier – part of your HVAC system – checked annually.
If you suspect your home’s humidifier is not working properly, you may have to replace old humidifier pads/filters. Old pads can have months of build-up, which is impossible to clean off after long-term wear and tear.
Other problems that can prevent your humidifier from working include clogged valves, bad motors, and broken thermostats. The easiest way to prevent your humidifier from breaking is to replace the filter annually and to also clean the insides thoroughly once a year, which will destroy all germs and rust.
When and Why is Lowering Humidity In-Home Crucial?
On the other hand, you can also have relative humidity levels that are too high. High humidity levels can cause mold/bacteria growth in your home, stuffy conditions, and overall discomfort. Mold growth is a big health issue, especially for people with asthma or mold allergies.
Likewise, mold can damage your home, cause unpleasant odors, and impact your ability to sell it. The summer months can pose high humidity level issues. In some cases, a dehumidifier can be a solution for lowering humidity in your home.
How Humidity Affects Your Home’s Structure
Indoor humidity isn’t just a comfort issue. It can cause real damage to your home’s structure, flooring, furniture, and belongings. With a home humidity chart, you can minimize the effects of both low and high humidity in your home.
Effects of Low Humidity on Your Home
When humidity is too low, the dry air can cause materials to shrink, crack, or warp. This is especially problematic for homes with wooden elements.
Hardwood Floors Shrink & Crack. Dry air pulls moisture from the wood, causing gaps between floorboards and increasing the risk of splintering.- Furniture & Cabinets Dry Out. Wood furniture and kitchen cabinets can become brittle and develop cracks over time.
- Wallpaper Peeling & Paint Damage. Low moisture levels cause wallpaper to peel and paint to chip or crack.
- Static Electricity Buildup. While not damaging, it can be an annoying side effect of dry indoor air.
Effects of High Humidity on Your Home
When humidity rises above 60%, excess moisture can lead to rot, mold, and costly damage.
- Mold & Mildew Growth. High humidity creates the perfect conditions for mold to grow on walls, ceilings, and even inside HVAC ducts.
- Warped Wood & Flooring. Moisture causes wood to expand, leading to buckling or warped floors.
- Condensation & Water Damage. Excess humidity causes water droplets to form on windows, ceilings, and walls, which can lead to paint damage, rot, and leaks.
- Unpleasant Odors & Poor Air Quality. Musty smells can linger, making the home uncomfortable and harder to sell.
What Humidity for House: Answered!
Seasonal humidity can affect indoor home comfort, so managing your in-home levels can make spending time indoors more enjoyable. You can also help prevent health issues and damage to your home. With a home humidity chart, you can achieve the right humidity levels.
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