Every floor in your home should be a retreat that’s warm and toasty in the winter season and cool and comfortable in the summer. However, owners of some two-story homes find the upper floor is stubbornly hotter or colder than the first floor.

This could just be because most thermostats in a house are on the first floor, which is where people spend the most time—in the living room, kitchen, etc.—so as a result they tend to set the temperature according to how it feels on the first floor.

However, temperature discrepancies between the upstairs and downstairs could also be because of issues with your HVAC system. Some of these difficulties can be sorted out relatively quickly while others might call for more extensive and costly fixes. Here, the professionals at Mechanical Air Systems Co will help you determine why the upstairs of your home is hotter than downstairs, or vice versa.

Why Is My Upstairs So Hot?

The phenomenon of the upstairs of a two-story home getting hotter than the downstairs can be chalked up to several factors. Number one, heat rises, so it’s common for the second floor of a home to get hotter than the ground floor. Not enough insulation in the attic or roof can make this worse by allowing heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioning is not powerful enough to cool the entire home, causing it to struggle to cool the upstairs adequately.

To fix these issues, homeowners could put in additional insulation in the attic and make sure their home has sufficient ventilation. If there’s a possibility the air conditioning unit is the correct size for the home, call an experienced HVAC company like Mechanical Air Systems Co inspect the unit. A knowledgeable professional also can help select a unit that's better suited for your home if you are considering air conditioning installation or replacement.

Why Is My Upstairs So Cold/Not Heating?

When the downstairs of your home is warm, but it’s extremely chilly upstairs, that can cause an ice-cold night for anyone whose bedrooms are on the upper floor. The most prevalent explanations for an upstairs not heating like it ought to are the insulation levels and the ductwork.

Inadequate insulation permits cold air to leak through the home’s attic or walls and contribute to heat loss, resulting in colder temperatures upstairs. It’s important to make sure your home has a thick, level layer of insulation in the attic and proper insulation in the walls to keep the cold out and the heat inside.

The ductwork in a home plays a very important role in distributing conditioned air throughout different areas of the building. However, problems with the ductwork can cause the upstairs being colder than the downstairs. A frequently reported reason for this is improper airflow balance. The ducts may not be the proper size or in the appropriate layout, causing an uneven distribution of air between the floors. This can cause more warm air to be directed to the downstairs, leaving insufficient airflow—which is the heated air—on the upper story.

Another possible issue with the ductwork is the location of the supply and return vents. If there are fewer vents on the upper floor or they are poorly installed, it can limit air circulation and cause substandard heating or cooling. In addition, leaks or gaps in the ductwork can cause air loss, reducing the overall efficiency of the HVAC system and making the temperature difference more pronounced.

To find out why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by trusted experts like the team at Mechanical Air Systems Co to identify any imbalances, leaks or inadequacies. Sealing leaks and adding additional vents or adjusting existing ones can help improve airflow and ensure a more consistent temperature balance between the upstairs and downstairs.

How You Can Fix a Hot or Cold Upstairs?

If your upstairs is hotter or colder than the ground level of your home, an HVAC zoning system could be a useful solution.

An HVAC zoning system separates the home into different zones, which each have their own thermostat and damper system so the homeowner can customize the heating or cooling of each zone.

This system can be very useful in instances where the upstairs of a multi-story home is very hot or too cold while the main floor is comfortable. By setting up a  zoning system, homeowners can control the temperature independently in each zone, enabling them to address specific hot or cold spots effortlessly.

To learn more about an HVAC zoning system in Mason City, call Mechanical Air Systems Co. We’ve developed and installed customized home comfort plans for many community members and are happy to show how an HVAC zoning system could enhance the comfort in your home.

Why Is it So Humid Upstairs?

In addition to the upper story being hotter or colder than the rest of the house, another issue in multi-floor homes is when the upper floors are more humid than the lower level.

A common reason for excess upper floor humidity is inadequate ventilation on the upper floor, which can cause higher humidity levels. As is often the case with temperature differences between floors, poor insulation or sealing in the attic or walls may allow warm, humid air from outdoors infiltrate the upstairs rooms. And, if there are any leaks or plumbing problems on the upper floor, that can also create excess moisture in that section of a home.

To address humidity problems, homeowners can improve ventilation by getting fans or opening windows to promote airflow. Proper insulation  in the attic and better sealing the attic and walls can help stop external moisture from entering the upstairs. Identifying and repairing any leaks or plumbing issues is also extremely important.

Depending on the levels of moisture found in the home, a whole-home dehumidifier could be another valuable tool to manage humidity in your home.