Demystifying Dehumidification Loads
Does it seem like your house is more humid than you remember it (or other houses) being in the past? If so, you may be right. It turns out that a lot of factors contribute to how much dehumidification you…
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dehumidification
Do You Need a Bigger Air Conditioner If You Install a Dehumidifier?
Those of us in humid climates know the importance of having good dehumidification along with good cooling for comfort. Dehumidifiers, however, blow hot air into the living space. So what happens when you add a dehumidifier? A lot of people…
4 Ways to Control Humidity in an Encapsulated Attic
Bringing an attic within the building enclosure that defines the conditioned space has a lot of benefits. By having the insulation and air barrier at the roofline, the attic stays close to the temperature in the living space below. That…
Try the Mosquito Bucket of Death
I usually focus on the building science of homes, HVAC, and indoor environmental quality. Today, though, I'm going to cover a topic of outdoor environmental quality. I've had mosquitoes in my backyard since we bought the house in 2019. This…
An Air Conditioner Does at Least 4 Jobs
The most noticeable thing about an air conditioner is that it blows cool air into the house. When you come indoors after doing yard work on a hot summer day, that may be all that matters to you. But air…
Building Science News & Trends for 2025
Several years ago, I heard something really interesting at a talk by a self-described futurist. It's an interesting "Futurists," she said, "look at weak signals and try to figure out which ones will become strong signals." I hadn't thought…
10 Ways to Reduce Your Indoor Humidity
With our changing climate, more people are having to deal with higher humidity for longer periods of time this summer. I'd say this has been probably the worst summer for humidity since I moved to Georgia in the summer of…
Hotels Have a Humidity Problem
If you travel with a hygrometer, as any seasoned traveler should, what I have to show you here is nothing new. But if instead you've never measured the relative humidity in a hotel room, I've got something interesting for you…
5 Tips for Sizing an Air Conditioner
So you're getting a new air conditioner! Well, what size should you get? Unfortunately, too many contractors use only one input for sizing an air conditioner. Yup. To them, it's just a matter of floor area. Forget the windows, the…
4 Ways to Duct a Dehumidifier
Humidity control is becoming a bigger deal than it used to be. As Joseph Lstiburek, PhD, PE said to me one time, "the gap between stupid and hurt is narrowing." Building codes and best practices are getting better, which is…