Your entire home should be a sanctuary that’s warm and comfy in the winter and cool and comfortable in the summer. However, owners of some multi-level residences find the upper floor is stubbornly hotter or colder than the first floor.

This could merely be due to the fact most thermostats in a house are on the main floor, which is where people spend the the majority of time—in the living room, kitchen, etc.—so it makes sense to set the temperature according to how it feels on the first floor.

However, temperature differences between the upstairs and downstairs could also be because of problems with your HVAC system. Some of these challenges can be fixed relatively quickly while others might necessitate more extensive and costly fixes. Here, the team at House of Heating Incorporated will help you solve 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 getting hotter than the downstairs can be attributed to several factors. Number one, heat rises, so it’s natural for the second floor of a home to get hotter than the first floor. Insufficient insulation in the attic or roof can exacerbate this issue by letting heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioning is not big enough to cool the entire home, causing it to have difficulty cooling the upstairs effectively.

To address these issues, homeowners could install extra insulation in the attic and make sure their home has proper ventilation. If there’s concern the air conditioner is the right size for the home, call an experienced HVAC company like House of Heating Incorporated inspect the unit. A qualified professional also can help select a unit that's better suited for your home if you require air conditioning installation or replacement.

Why Is My Upstairs So Cold/Not Heating?

When the downstairs of your home is warm, but it’s freezing upstairs, that can cause a frosty night for anyone whose bedrooms are on the upper floor. The most prevalent explanations for an upstairs not heating like it should 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, creating colder temperatures upstairs. It’s essential to make sure your home has a thick, level layer of insulation in the attic and adequate insulation in the walls to keep the cold out and the heat inside.

The ductwork in a home plays a critical role in distributing conditioned air throughout different rooms of the building. However, issues with the ductwork can result in the upstairs being colder than the downstairs. A common reason for this is improper airflow balance. The ducts may not be the correct size or design, resulting 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 story.

Another factor with ductwork is the location of the supply and return vents. If there are fewer vents on the upper level or they are not correctly located, it can reduce air circulation and cause inferior heating or cooling. Also, leaks or gaps in the ductwork can cause air loss, reducing the overall efficiency of the HVAC system and actually making the temperature difference worse.

To find out why the upstairs is colder than the downstairs, homeowners should hve their ductwork inspected by trusted experts like the team at House of Heating Incorporated to identify any imbalances, leaks or inadequacies. Sealing leaks and adding more vents or adjusting existing ones can help increase airflow and ensure a better temperature balance between the upstairs and downstairs.

What Do I Do to Fix a Hot/Cold Upstairs?

If your upstairs is hotter or colder than the lower floors of your house, an HVAC zoning system could be a useful solution.

An HVAC zoning system separates the residence 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 effective in scenarios where the upstairs of a multi-story home is very hot or too cold while the main floor is comfortable. By implementing a  zoning system, homeowners can regulate the temperature independently in each zone, making it possible for them to address specific hot or cold spots easily.

To find out more about an HVAC zoning system in Marshfield, call House of Heating Incorporated. We’ve designed and installed customized home comfort plans for many community members and are happy to show how an HVAC zoning system could benefit 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 problem in multi-floor homes is when the higher levels are more humid than downstairs.

A frequent cause for excess upper floor humidity is inadequate ventilation on the upper floor, which can cause greater humidity levels. As is often the case with temperature differences between floors, insufficient insulation or sealing in the attic or walls may allow warm, humid air from outdoors infiltrate the upstairs rooms. Plus, if there are any leaks or plumbing issues on the upper floor, that can also cause excessive moisture in that level of a home.

To correct 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 prevent external moisture from entering the upstairs. Finding and repairing any leaks or plumbing issues is also imperative.

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