Dallas Drywall: Summer Heat Breeding Toxic Lungs?

By Franklin Everett Shaw

January 3, 2026

The air hangs heavy, thick with humidity, a typical Dallas summer day. But something’s different. A faint, acrid smell lingers, almost like sulfur, and your eyes feel irritated. You might dismiss it as allergies, but what if it’s something far more insidious lurking within the very walls of your home?

The culprit could be “Chinese drywall,” a defective building material imported into the United States, particularly during the housing boom of the mid-2000s. Dallas, with its rapid growth and sprawling suburbs, became a prime target for this toxic import. The intense summer heat acts as a catalyst, accelerating the release of harmful gases from the drywall, turning homes into veritable chemical reactors.

Identifying “Chinese drywall” isn’t always straightforward, but there are telltale signs. Look for these indicators, especially in homes built or renovated between 2004 and 2008:

• The Smell: A distinct sulfur or rotten egg odor, particularly noticeable in warmer months or enclosed spaces like closets. This is hydrogen sulfide gas being released.

• Blackening of Copper: Check electrical wiring, air conditioning coils, and even jewelry. The hydrogen sulfide reacts with copper, causing it to corrode and turn black. This is a key indicator.

• Drywall Markings: Look for stamps or labels on the back of the drywall sheets. While not all imported drywall is defective, markings like “Made in China,” “Knauf,” or “Taishan” should raise a red flag. Accessing this might require removing an outlet cover (turn off the breaker first!) or inspecting unfinished areas.

• Health Symptoms: Residents may experience a range of health problems, including:

  • Respiratory irritation: Coughing, wheezing, shortness of breath. Dallas’s already challenging allergy season can exacerbate these symptoms.
  • Eye irritation: Burning, itching, watery eyes.
  • Sinus problems: Congestion, runny nose, sinus infections.
  • Headaches: Frequent or persistent headaches.
  • Fatigue: Unexplained tiredness.

If you suspect you have Chinese drywall, don’t panic. Immediate action is crucial to mitigate exposure and protect your health.

First, increase ventilation. Open windows and doors, especially during the cooler parts of the day. Run exhaust fans in bathrooms and kitchens to remove contaminated air. Dallas homes, often designed for energy efficiency, can be particularly susceptible to poor indoor air quality. Consider installing or upgrading your whole-house fan, if you have one.

Second, invest in air filtration. A high-efficiency particulate air (HEPA) filter can remove airborne particles and some gases. Look for air purifiers specifically designed to remove volatile organic compounds (VOCs) and sulfur-containing gases. Place these units in bedrooms and living areas where you spend the most time.

Third, consider professional testing. Several companies offer drywall testing services. They can collect air samples and analyze them for the presence of hydrogen sulfide and other harmful gases. This provides concrete evidence and helps determine the extent of the problem. Contact a reputable environmental testing firm in the Dallas area.

Fourth, document everything. Keep a record of your symptoms, observations, and any actions you take. This documentation will be essential if you decide to pursue legal action or file an insurance claim.

Fifth, seek medical advice. Consult with a doctor, especially if you are experiencing respiratory problems or other health issues. Explain your concerns about Chinese drywall exposure. A pulmonologist or allergist may be best suited to assess your condition and recommend appropriate treatment.

The architecture of Dallas homes presents unique challenges in mitigating Chinese drywall exposure. Many homes feature sealed windows and tightly insulated walls to combat the extreme heat. While energy-efficient, this can trap harmful gases indoors.

• Attic Ventilation: Ensure your attic is properly ventilated. Poor attic ventilation can lead to a buildup of heat and humidity, exacerbating the release of gases from the drywall. Consider adding or upgrading attic vents.

• Crawl Space Ventilation: Homes with crawl spaces should also have adequate ventilation. Moisture and gases can accumulate in crawl spaces and seep into the living areas.

• HVAC System: Your HVAC system plays a crucial role in air circulation. Ensure your filters are clean and that your system is properly maintained. Consider upgrading to a higher-efficiency filter that can capture smaller particles.

One common mistake is assuming that the problem will go away on its own. It won’t. The drywall will continue to off-gas, and the problem will only worsen over time, especially with Dallas’s relentless summer heat.

Another pitfall is attempting DIY remediation. Removing and replacing drywall is a complex and potentially hazardous task. It’s best left to professionals who have the experience and equipment to handle the job safely.

Here’s a step-by-step approach to addressing Chinese drywall in your Dallas home:

1. Initial Assessment: Conduct a thorough visual inspection and note any signs of corrosion or odor.

2. Air Quality Testing: Hire a qualified environmental testing firm to collect air samples and analyze them for harmful gases.

3. Drywall Identification: If possible, inspect the back of the drywall sheets for markings.

4. Ventilation Improvements: Increase ventilation by opening windows and doors, running exhaust fans, and improving attic and crawl space ventilation.

5. Air Filtration: Install HEPA air purifiers in bedrooms and living areas.

6. Professional Remediation: If testing confirms the presence of Chinese drywall, hire a qualified contractor to remove and replace the affected drywall.

7. Medical Consultation: Consult with a doctor to address any health concerns.

8. Legal and Insurance Options: Explore your legal and insurance options. You may be able to file a claim with your homeowner’s insurance company or pursue legal action against the manufacturer or supplier of the defective drywall.

The Texas Department of State Health Services (DSHS) offers resources and information on Chinese drywall. Contact them for guidance and assistance. The Consumer Product Safety Commission (CPSC) also provides information and updates on the issue.

Don’t underestimate the potential impact of Chinese drywall on your health and home. Take proactive steps to identify the problem, mitigate exposure, and protect your well-being. The Texas sun is hot enough; don’t let your walls poison you too.