The summer sun can do more than just heat up your home—it can also put stress on your foundation. Extreme heat and dry conditions cause the soil beneath a home to shrink and shift, leading to cracks, uneven settling, and structural instability. Homeowners should take proactive steps to protect their foundation before small cracks turn into costly repairs.
How Summer Heat Impacts Foundations
Foundations rely on consistent soil moisture to remain stable. When summer heat dries out the soil, it can create several issues:
- Soil Shrinkage – As moisture evaporates, the soil contracts, creating empty spaces under the foundation. This can cause the home to settle unevenly.
- Crack Expansion – Existing foundation cracks can widen as the structure shifts, allowing water to seep in when it eventually rains.
- Increased Hydrostatic Pressure After Drought – After a dry period, heavy rains can oversaturate the shrunken soil, leading to rapid expansion and pressure against the foundation.
Warning Signs of Heat-Related Foundation Damage
Homeowners should inspect their foundation regularly, especially during hot, dry months. Signs of potential damage include:
- New or widening cracks in walls, floors, or the foundation itself
- Doors and windows that become difficult to open or close
- Gaps forming between walls and ceilings
- Uneven or sloping floors
- Visible soil separation around the home’s perimeter
How to Protect a Foundation During Extreme Heat
Preventing foundation damage starts with maintaining stable soil conditions.
Keep the Soil Hydrated
- Use a soaker hose around the foundation during long dry periods to maintain soil moisture.
- Water deeply but infrequently to prevent excessive swelling when rain does come.
- Avoid overwatering, which can create unstable, muddy soil.
Seal Foundation Cracks Before They Worsen
- Apply high-quality epoxy or polyurethane sealant to small cracks to prevent further expansion.
- For larger cracks, consult a foundation repair specialist to determine the best stabilization method.
Improve Drainage Around the Home
- Extend downspouts and gutters at least six feet from the foundation.
- Ensure proper grading so water flows away from the home, not toward it.
- Install French drains or a foundation watering system to control soil moisture.
Professional Inspections Can Prevent Major Repairs
Foundation issues caused by heat and soil shrinkage often go unnoticed until significant damage has occurred. Regular inspections by a foundation expert can identify problems before they become costly repairs.
For homeowners who have noticed cracks expanding or shifting soil around their home, now is the time to act. Contact Sexton Brothers Construction for a professional foundation evaluation and ensure your home stays stable through the summer heat.
