How Summer Heat and Humidity Can Affect Your Home's Foundation and Structure

Ohio summers bring long, sunny days, rising temperatures, and a thick wave of humidity. While it may be great weather for barbecues and poolside relaxation, summer heat and humidity can seriously affect your home, especially its foundation and structural integrity.


Understanding how seasonal heat and moisture affect your home is essential for proactive maintenance. In this post, we’ll explore the effects of summer weather on your home’s foundation and structure, signs of damage to watch for, and tips to protect your investment.


1. Soil Expansion and Contraction

Ohio's soil, particularly clay-rich soils common throughout the state, is highly responsive to moisture changes. During summer:

  • Excessive heat causes the soil around your home to dry out and contract.
  • Sudden storms and humidity reintroduce moisture, causing the soil to expand again.


This constant expansion and contraction places stress on your home’s foundation. Over time, the movement can lead to cracks, shifting, or uneven settling of the foundation.


What to Watch For:

  • Stair-step cracks in brick or block foundations
  • Cracks in drywall, especially around doors and windows
  • Doors or windows that stick or no longer close properly
  • Sloping floors or gaps between walls and ceilings


2. Humidity and Moisture Intrusion

While dry soil can be damaging, so can high humidity levels and moisture buildup, particularly in basements and crawl spaces. Warm, moist air can lead to:

  • Condensation on cool basement walls or pipes
  • Mold and mildew growth in poorly ventilated areas
  • Wood rot in framing, support beams, or subflooring


Humidity is especially problematic for older homes in Ohio with limited ventilation or waterproofing.


What to Watch For:

  • Musty odors in basements or lower levels
  • Visible mold or mildew on walls, ceilings, or insulation
  • Sagging or spongy floors
  • Rust or corrosion on metal support structures


3. Cracks in Driveways and Patios

It’s not just your house that’s affected; outdoor concrete surfaces like driveways, sidewalks, and patios are vulnerable to summer stress too. When concrete heats up, it expands. Without room for that expansion, it can lead to surface cracking.

Then, when storms roll through, water seeps into those cracks and accelerates the deterioration, especially when paired with heavy foot or vehicle traffic.


4. Wood Framing and Structural Shifts

Humidity can also impact the wooden components of your home. Wood absorbs moisture from humid air, which can cause it to swell, warp, or shift.



This movement may be minor, but over time it can:

  • Affect framing around doors and windows
  • Cause squeaky or uneven floors
  • Lead to misaligned drywall and trim


Proper ventilation and humidity control can reduce this risk.


5. Pest Activity

Summer heat and moisture also attract pests, like termites, carpenter ants, and rodents, that can threaten your home’s structure. Termites, in particular, are drawn to moisture and can quietly do extensive damage to wooden framing and support beams.


What to Watch For:

  • Hollow-sounding wood or blistering paint
  • Mud tubes along foundation walls (a sign of subterranean termites)
  • Droppings, chewed wood, or nesting material in crawl spaces


How to Protect Your Home

✅ Maintain Proper Drainage

Ensure gutters are clean and downspouts extend away from the foundation. Ensure the grading around your home slopes away to prevent water pooling near the base.


✅ Use a Dehumidifier

Install dehumidifiers in basements or crawl spaces to reduce excess humidity. This helps prevent mold, wood rot, and structural weakening.


✅ Inspect Your Foundation Regularly

Walk around your home and basement every few months to check for cracks or signs of moisture. Catching issues early can save thousands in repair costs.


✅ Install or Maintain a Sump Pump

Ohio homes prone to basement flooding should have a working sump pump. Check it seasonally and consider a battery backup in case of power outages.


✅ Schedule a Professional Inspection

If you suspect structural movement, water damage, or humidity-related problems, a professional home inspection can pinpoint the cause and recommend solutions before the damage worsens.


Conclusion

While summer is a time for enjoying the outdoors, it’s also a season when your home may be under stress. Heat and humidity can quietly weaken foundations, shift structures, and encourage damaging moisture buildup. Ohio homeowners can protect their properties with regular inspections, good drainage, and smart moisture control strategies.


When in doubt, call a qualified home inspector to assess potential issues before they become major repairs. Your home will thank you for it.

May 20, 2025
When it comes to hidden dangers in the home, radon gas often tops the list, especially for Ohio homeowners. You can’t see it, smell it, or taste it, but prolonged radon exposure can pose serious health risks. Unfortunately, Ohio is among the states with some of the highest average indoor radon levels in the U.S. That’s why understanding the risks and taking steps to test and mitigate radon is so important. What Is Radon? Radon is a naturally occurring radioactive gas that forms when uranium in soil, rock, and water breaks down. It seeps up through the ground and can enter homes through cracks in the foundation, sump pumps, floor drains, and even well water. Once inside, radon can accumulate, especially in lower levels like basements or crawl spaces, and become a health hazard. Why Is Radon a Problem in Ohio? According to the Ohio Department of Health, every Ohio county has recorded radon levels at or above the EPA’s action level of 4.0 picocuries per liter (pCi/L) . Ohio’s geological composition, which includes uranium-rich soils and bedrock, contributes to the elevated risk. This means that whether you live in Cleveland, Columbus, Cincinnati, or a rural area, your home could be affected by radon. Health Risks of Radon Exposure Radon is the second leading cause of lung cancer after smoking, according to the Environmental Protection Agency (EPA). Long-term exposure to high levels of radon increases your risk significantly, especially for smokers. Symptoms of radon-related health issues may not appear until years after exposure, making regular testing essential for early detection and prevention. How Radon Enters a Home Radon moves from the ground into your home through: Cracks in solid floors or walls Construction joints Gaps around pipes and cables Sump pump pits or floor drains Crawl spaces with exposed earth Once inside, it becomes trapped, especially in homes that are well-sealed or poorly ventilated. How to Test Your Home for Radon The only way to know your home’s radon level is to test for it. You have two main options: DIY Radon Test Kits Available at hardware stores or online. Follow the instructions carefully, place the test in the lowest livable level of your home (usually the basement), and send it to a lab for results. Best used for short-term preliminary testing (2 to 7 days). Professional Radon Testing More accurate and often required during real estate transactions. Certified radon measurement professionals use continuous radon monitors and can provide fast, detailed reports. Tip : Even if your neighbor’s home tested low, your home could still have high levels. Radon concentrations can vary dramatically from house to house, even on the same street. What If My Home Has High Radon Levels? If your radon test shows levels of 4.0 pCi/L or higher , the EPA recommends mitigation. Fortunately, radon mitigation is effective and typically involves: Installing a sub-slab depressurization system , which uses a fan and vent pipe to draw radon from beneath the home and release it safely outside. Sealing cracks and openings in the foundation to reduce radon entry points. Professional mitigation systems can reduce radon levels by up to 99%, making your home much safer for long-term occupancy. Radon and Real Estate Transactions in Ohio In Ohio, radon disclosure is not legally required , but testing is strongly encouraged during a real estate transaction. Buyers often request a radon test as part of their inspection process, and if elevated levels are found, they may negotiate for mitigation before closing. Sellers can also benefit by proactively testing and installing a mitigation system before listing their home, which increases buyer confidence and speeds up the sale. Conclusion Radon is a serious but manageable health risk, especially in Ohio, where elevated levels are common. Whether you’re a current homeowner or planning to buy a home, testing for radon is an affordable and straightforward step that can protect your family’s health and peace of mind. Key Takeaways: Radon is an invisible, odorless gas linked to lung cancer. Ohio has some of the highest radon levels in the country. Testing is the only way to know if your home has radon. Professional mitigation can effectively reduce high radon levels. Don’t guess, test. Schedule a radon test today or talk to your local home inspection professional about including radon testing in your next inspection. Your future self will thank you.
April 7, 2025
Whether you're a longtime Ohio homeowner or preparing to buy your first home, energy efficiency should be a top priority. Ohio’s climate—from humid summers to freezing winters—means your home works hard year-round to keep you comfortable. But if your home isn’t energy-efficient, that hard work comes at a high cost.  A professional home inspection doesn’t just uncover major structural or safety issues—it can also identify areas where your home is losing energy. Let’s explore how a home inspection can reveal opportunities to improve energy efficiency, reduce utility bills, and create a more comfortable, eco-friendly living environment. Why Energy Efficiency Matters in Ohio With Ohio’s fluctuating seasons, the demand on heating and cooling systems can be intense. The more efficiently your home performs, the lower your energy consumption, utility costs, and carbon footprint. For older homes especially, energy inefficiencies often go unnoticed until they lead to high bills or uncomfortable drafts. That's where a detailed inspection comes in. How Home Inspections Identify Energy Loss During a general home inspection—or an energy-specific audit—inspectors evaluate several key areas of the home that directly impact energy usage. Here’s what they typically look for: 1. Insulation Gaps Proper insulation is essential for keeping your home warm in the winter and cool in the summer. Inspectors check attics, basements, crawl spaces, and wall insulation (when accessible) to see if: Insulation is up to current standards There are gaps, compression, or water damage Insulation is missing in key areas like rim joists or attic hatches 2. Drafty Windows and Doors Inspectors often find energy loss around windows and doors due to aging seals, poor caulking, or single-pane glass. This is especially common in older Ohio homes. What they check: Air leaks and drafts near windows and door frames Broken or inefficient windows Worn-out weather stripping 3. HVAC System Performance Your heating and cooling systems play a major role in energy consumption. Home inspectors evaluate: System age and efficiency Ductwork condition and insulation Dirty filters or clogged coils Thermostat functionality 4. Attic Ventilation An often-overlooked aspect of energy efficiency, attic ventilation keeps air circulating to prevent heat buildup in summer and moisture accumulation in winter. What inspectors look for: Blocked or missing vents Signs of condensation or mold Inadequate air circulation 5. Appliances and Lighting While not the primary focus of most inspections, some inspectors will note outdated or inefficient appliances, especially those built before modern energy standards. Benefits of Addressing Energy Efficiency Issues Once a home inspection identifies energy inefficiencies, homeowners can take action. These fixes range from simple weekend projects to larger investments that pay off over time. ✅ Lower Utility Bills Upgrading insulation or sealing air leaks can drastically reduce heating and cooling costs—especially in the most extreme months. ✅ Improved Comfort Say goodbye to hot and cold spots, drafts, and stuffy rooms. An energy-efficient home maintains a more stable and comfortable indoor temperature. ✅ Increased Home Value Energy efficiency upgrades can increase resale value and appeal to eco-conscious buyers. Adding ENERGY STAR-rated appliances, updated windows, or smart thermostats are strong selling points. ✅ Eligibility for Rebates Ohio homeowners may qualify for utility company rebates or tax incentives for making energy-efficient improvements. These programs can offset the cost of upgrades recommended by your inspector. Bonus Tip: Consider a Home Energy Audit While a standard home inspection can highlight many energy-related issues, a professional energy audit takes it a step further. This specialized inspection uses tools like blower doors, infrared cameras, and pressure gauges to pinpoint energy loss with precision. Many Ohio utility providers offer home energy audits at low or no cost—making it a smart addition to your inspection strategy. Conclusion A home inspection is more than just a checklist before buying or selling—it’s an opportunity to uncover energy inefficiencies and make smart, cost-saving upgrades. In a state like Ohio, where weather extremes put homes to the test, improving energy performance lowers your bills and creates a more comfortable and sustainable living environment. Whether you're buying a new home or living in your forever one, ask your inspector what you can do to boost energy efficiency. A few small changes today can make a big difference tomorrow. Looking to schedule an inspection with energy efficiency in mind? Reach out to Lemonade Home Inspections to get started!