Your entire residence should be a refuge that’s warm and cozy 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 due to the fact most thermostats in a house are on the first floor, which is where people spend the greatest amount of time—in the living room, kitchen, etc.—so they set the temperature according to how it feels on the first floor.

However, temperature discrepancies between the upstairs and downstairs could also be caused by trouble with your HVAC system. Some of these issues can be fixed fairly quickly while others might require more extensive and costly fixes. Here, the team at Rapids Sheet Metal Works Inc will help you determine why the upstairs of your home is hotter than downstairs, or vice versa.

Why Is It Hot Upstairs?

The phenomenon of the upstairs of a two-story home becoming hotter than the downstairs can be chalked up to several factors. For starters, heat rises, so it’s common for the second floor of a home to get hotter than the first 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 conditioner is not powerful enough to cool the entire home, causing it to have difficulty cooling the upstairs adequately.

To fix these issues, homeowners could install additional insulation in the attic and make sure their home has adequate ventilation. If there’s a question of whether the air conditioning unit is the correct size for the home, call an experienced HVAC company like Rapids Sheet Metal Works Inc inspect the unit. A skilled professional also can help select a unit that's better suited for your home if you need air conditioning installation or replacement.

Why Is My Upstairs Colder/Not Heating?

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

Inadequate insulation enables cold air to leak through the home’s attic or walls and contribute to heat loss, resulting in colder temperatures on higher floors. It’s essential to make sure your home has a deep, 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 critical role in disseminating conditioned air throughout different areas of the building. However, issues with the ductwork can result in the upstairs being colder than the main level. A common cause for this is improper airflow balance. The ducts may not be the correct size or design, which results in 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 level.

Another possible issue with the ductwork is the location of the supply and return vents. If there are fewer vents on the upper story or they are not correctly placed, it can limit air circulation and cause inadequate heating or cooling. Also, leaks or gaps in the ductwork can allow air loss, decreasing the overall efficiency of the HVAC system and exacerbating the temperature difference.

To figure out why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by trusted experts like the team at Rapids Sheet Metal Works Inc to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in additional vents or adjusting existing ones can help increase airflow and ensure a more even 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 rest of your residence, an HVAC zoning system could be an effective solution.

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

This system can be particularly beneficial in instances where the upstairs of a multi-story home is very hot or really cold while the main floor is comfortable. By installing a  zoning system, homeowners can regulate the temperature independently in each zone, allowing them to address specific hot or cold spots effortlessly.

To find out more about an HVAC zoning system in Wisconsin Rapids, call Rapids Sheet Metal Works Inc. We’ve created and installed customized home comfort plans for many community members and are happy to show how an HVAC zoning system could work in your home.

Why Is the Humidity So High 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 upstairs is more humid than the lower level.

A frequent explanation for excess upper floor humidity is poor ventilation on the upper floor, which can produce higher humidity levels. As is often the case with temperature differences between floors, inadequate insulation or sealing in the attic or walls may permit warm, humid air from outside infiltrate the upstairs rooms. Plus, if there are any leaks or plumbing concerns on the upper floor, that can also create excessive moisture in that area of a home.

To deal with humidity problems, homeowners can increase ventilation by installing fans or opening windows to promote airflow. Appropriate levels of insulation  in the attic and better sealing the attic and walls can help protect against 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 useful tool to manage humidity on the upper and lower floors.