Your entire residence should be a retreat that’s warm and cozy in the winter and cool and comfortable in the summer. However, families who live in some two-story homes find the upper floor is stubbornly hotter or colder than the first floor.

This could simply be caused by the fact that most thermostats in a house are on the ground 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 issues with your HVAC system. Some of these challenges can be resolved relatively quickly while others might necessitate more extensive and costly fixes. Here, the team at Strine's 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 becoming hotter than the downstairs can be chalked up to several factors. For starters, heat rises, so it’s natural for the second floor of a home to get hotter than the main floor. Lack of 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 HVAC system is not big enough to cool the entire home, causing it to have difficulty cooling the upstairs adequately.

To tackle these issues, homeowners could install extra insulation in the attic and make sure their home has adequate ventilation. If there’s a possibility the AC is the ideal size for the home, call an experienced HVAC company like Strine's inspect the unit. A skilled 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 Always Cold/Not Heating?

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

Inadequate insulation allows cold air to leak through the home’s attic or walls and contribute to heat loss, causing colder temperatures on higher floors. It’s crucial to make sure your home has a deep, 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 locations of the building. However, problems with the ductwork can cause the upstairs being colder than the main level. A common reason for this is improper airflow balance. The ducts may not be the correct size or in the appropriate layout, which results in an uneven distribution of air between the floors. This can cause more warm air to flow downstairs, which creates insufficient airflow—which is the heated air—on the higher floors.

Another factor with ductwork is the placement of the supply and return vents. If there are fewer vents on the upper level or they are not correctly placed, it can reduce air circulation and cause substandard heating or cooling. Additionally, leaks or gaps in the ductwork can cause air loss, decreasing the overall efficiency of the HVAC system and making the temperature difference more pronounced.

To figure out why the upstairs is colder than the downstairs, homeowners should hve their ductwork inspected by trusted professionals like the team at Strine's to identify any imbalances, leaks or inadequacies. Sealing leaks and installing new vents or adjusting existing ones can help improve airflow and ensure a more consistent temperature balance between the upstairs and downstairs.

Fixing the Hot or Cold Upstairs Problem?

If your upstairs is hotter or colder than the rest of your home, an HVAC zoning system could be an effective 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 especially helpful in scenarios where the upstairs of a multi-story home is very hot or too cold while the main floor is comfortable. By investing in a  zoning system, homeowners can manage the temperature independently in each zone, enabling them to address specific hot or cold spots easily.

To discover more about an HVAC zoning system in York, call Strine's. 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 upper floors are more humid than the first floor.

A typical cause for excess upper floor humidity is weak 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 allow warm, humid air from outside infiltrate the upstairs rooms. And, if there are any leaks or plumbing concerns on the upper floor, that can also create extra moisture in that level of a home.

To fix humidity problems, homeowners can add more ventilation by getting fans or opening windows to promote airflow. Adding more insulation  in the attic and better sealing the attic and walls can help stop external moisture from entering the upstairs. Locating 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 worthwhile tool to reduce humidity on the upper and lower floors.