As summer temperatures rise, you may find that your home feels more like gold than a place to cool off. This is not your imagination, because your house is actually getting hotter every year. Although some of the blame may fall on the scorching sun and high humidity, the real culprit is often hidden in the aging components of your home.
“Over the years, homes deteriorate, making them feel hotter,” says Len Martin, co-founder of Modern Purair In British Columbia, Canada. “Homeowners usually think this is because the AC is getting old, but it can be many other reasons. Often it’s a combination of small issues around the house that build up over time.” This subtle shift creates an environment where cold air escapes, Moisture gets trapped indoorsAnd your cooling bills skyrocket without relief.
We spoke with several HVAC professionals about the most common problems that can cause an older home to age. If you’ve ever wondered “why is my house so hot?” Then these tips will help you identify what’s keeping your thermostat higher than you like.
Aging insulation
the poor Insulation One of the most common problems that result is overheating of the house. Over time, insulation can compress, shift or break, especially if it is In an attic or wall cavityDanny Reddick says, at the president Reddick & Sons in Manassas, Virginia. “When this happens, the house can’t prevent outside heat from entering the house, where it gets trapped and raises the temperature inside,” Reddick explains. This will result in the AC working harder to maintain an even temperature.
To prevent this from happening, Reddick says, Upgrade attic insulation For modern R-values, especially if the insulation is more than 10 years old. “This is an important step in restoring the home’s thermal barrier, improving energy efficiency and reducing the workload placed on the HVAC system during peak cooling months.”
Deteriorating caulk and weatherstripping
Gaps and cracks caused by old caulk and Weatherstripping There can also be problems, even if they are small. “If there is any caulking around the windows, doors or exterior parts of the house, it will dry out and crack faster than any caulk used on other parts of the house,” Reddick explains. Like caulk, weatherstripping can become brittle and break over time. When this happens, air can enter more easily and Run away from homecauses significant fluctuations in temperature, Reddick says.
“Any small gaps around windows and doors will get bigger as the materials in the house age, and those small leaks will let warm air in and out. Cool conditioned air To escape, the house feels warmer than it should,” adds Martin.
Reddick recommends a thorough inspection of any air-sealing areas of the home so you can quickly identify and fix leaks by resealing windows, replacing door seals, and sealing penetrations around plumbing and electrical lines.
Leaky pipes
Another common problem in older homes is ductwork that develops leaks, disconnected joints or poor insulation. This means cold air escapes into attics, crawl spaces or walls before it ever reaches the living spaces, Reddick says.
“What people also don’t realize is that ducts run through the hottest places in the house, like attics, crawl spaces and between walls,” says Michael Aumann, general manager. Way heating, cooling and plumbing in Phoenix and Tucson, Arizona. “So, when a leak occurs, you’re not only losing conditioned air, you’re pulling air from a space that might be 130 or 140 degrees.” That means the AC system has to work harder, but most people don’t realize this is happening.
To remedy this situation, Reddick suggests hiring a professional To replace sealed tubes and insulationwhich can significantly improve system performance. “In some cases, redesigning the airflow or adding compensation helps balance the temperature throughout the home,” Reddick explains.
HVAC system degradation
Older HVAC systems Reddick says dirty coils, low refrigerant charge, worn components or duct leakage often cause efficiency loss faster than newer models. “Even if the system is still running, it’s probably not moving air or removing heat the way it’s supposed to.”
Keep tabs on yourself AC unit By ensuring regular maintenance, especially if you want to avoid replacing your unit. Reddick recommends having coil cleanings, refrigerant checks and duct inspections performed by a certified technician to help extend the life of your air conditioner and dramatically improve the comfort level in your home.
A changing climate
Even though nothing has changed inside the house, hot summer And longer periods of extreme heat mean many ACs are operating against outside temperatures that are higher than they were originally designed for, Martin says. This means that during a heatwave, even a healthy HVAC system will have more heat to remove.
“Many regions of the country are experiencing higher-than-average temperatures, longer heat waves and increased humidity, all of which place greater demands on aging cooling systems,” notes Reddick. “Since the weather cannot be controlled, homeowners need to adjust their expectations of what their home and systems can actually do to maintain indoor comfort.” Some of the solutions he suggests include upgrading insulation and windows, Improve outdoor shadingand ensuring that the HVAC system is properly sized for current—not historical—climate conditions. You can also help your AC work to keep cool With habits like Running fans Or close the blinds during peak heat.
Homeowner Survival Kit
